Anton Hartmann

List of publications

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Selected Publications



  1. Bensidhoum, L., Nabti, E., Tabli, N., Kupferschmied, P., Weiss, A., Rothballer, M., Schmid, M., Keel, C., Hartmann, A. 2016. Heavy metal tolerant Pseudomonas protegens isolates from agricultural well water in northeastern Algeria with plant growth promoting, insecticidal and antifungal activities. European Journal of Soil Biology 75:38-46.

  2. Obersteiner, A., Gilles, S., Frank, U., Beck, I., Haring, F., Ernst, D., Rothballer, M., Hartmann, A., Traidl-Hoffmann, C., Schmid, M. 2016. Pollen-associated microbiome correlates with pollution parameters and the allergenicity of Pollen. Plos One 11(2):1 1-16.

  3. Palacios, O. A., Bashan, Y., Schmid, M., Hartmann, A., de-Bashan, L. E. 2016. Enhancement of thiamine release during synthetic mutualism between Chlorella sorokiniana and Azospirillum brasilense growing under stress conditions. Journal of Applied Phycology. 28:1521–1531.


  4. Rothballer, M., Picot, M., Sieper, T., Arends, J. B. A., Schmid, M., Hartmann, A., Boon, N., Buismand, C. J. N., Barriere, F., Strik, D. P. B. T. B. 2015. Monophyletic group of unclassified g-Proteobacteria dominates inmixed culture biofilm of high-performing oxygen reducing biocathode. Bioelectrochemistry 106: 167–176.

  5. Zeiller, M., Rothballer, M., Iwobi, A. N., Bohnel, H., Gessler, F., Hartmann, A., and Schmid1, M. 2015. Systemic colonization of clover (Trifolium repens) by Clostridium botulinum strain 2301. Frontiers in Microbiology 6(1207): 1-14.

  6. Hartmann, A., and Schikora, A. 2015. Editorial: Plant responses to bacterial quorum sensing molecules. Frontiers in Plant Sciences 6(643):1-2.

  7. Jha, B., Singh, V. K., Weiss, A., Hartmann, A., and Schmid, M. 2015. Zhihengliuella somnathii sp. nov., a halotolerant actinobacterium from the rhizosphere of a halophyte Salicornia brachiata. International Journal of Systematic and Evolutionary Microbiology 65: 3137–3142.

  8. Glaeser, S. P., Imani, J., Alabid, I., Guo, H., Kumar, N., Kampfer, P., Hardt, M., Blom, J., Goesmann, A., Rothballer, A., Hartmann, A., and Kogel, K-H. 2015. Non-pathogenic Rhizobium radiobacter F4 deploys plant beneficial activity independent of its host Piriformospora indica. International Society for Microbial Ecology 1-14

  9. Chowdhury, S. P., Uhl, J., Grosch, R., Alqueres, S., Pittroff, S., Dietel, K,. Schmitt-Kopplin, P., Borriss, R., Hartmann, A. 2015. Cyclic Lipopeptides of Bacillus amyloliquefaciens subsp. plantarum colonizing the cettuce rhizosphere enhance plant defense responses toward the bottom rot pathogen Rhizoctonia solani. Molecular Plant-Microbe Interactions Journal28(9):984-95.

  10. Stets, M. I., Alqueres, S. M. C., Souza, E. M., de Oliveira Pedrosa, F., Schmid, M., Hartmann, A., and Cruz, L. M. 2015. Quantification of Azospirillum brasilense FP2 bacteria in wheat roots by strain-specific quantitative PCR. Applied and Environmental Microbiology 81: 6700-6709

  11. Chowdhury, S. P., Hartmann, A., Gao, X., and Borriss, R. 2015. Biocontrol mechanism by root-associated Bacillus amyloliquefaciens FZB42–a review. Frontiers in Microbiology 6

  12. Götz-Rösch, C., Sieper, T., Fekete, A., Schmitt-Kopplin, P., Hartmann, A., and Schröder, P. 2015. Influence of bacterial N-acyl-homoserine lactones on growth parameters, pigments, antioxidative capacities and the xenobiotic phase II detoxification enzymes in barley and yam bean. Frontiers in Plant Science 6


  13. Arango, L., K. Buddrus-Schiemann, K. Opelt, T. Lueders, F. Haesler, M. Schmid, D. Ernst, and A. Hartmann. 2014. Effects of glyphosate on the bacterial community associated with roots of transgenic Roundup Ready® soybean. European Journal of Soil Biology 63: 41-48

  14. Buddrus-Schiemann, K., M. Rieger, M. Muehlbauer, M. V. Barbarossa, C. Kuttler, B. A. Hense, M. Rothballer, J. Uhl, J. R. Fonseca, P. Schmitt-Kopplin, M. Schmid, and A. Hartmann. 2014. Analysis of N-acylhomoserine lactone-dynamics in continuous cultures of Pseudomonas putida IsoF using ELISA and UHPLC/qTOF-MS-derived measurements and mathematical models. Analytical and Bioanalytical Chemistry doi: 10.1007/s00216-014-8063-6

  15. Budiharjo, A., S. P. Chowdhury, K. Dietel, B. Beator, O. Dolgova, B. Fan, W. Bleiss, J. Ziegler, M. Schmid, A. Hartmann, and R. Borriss. 2014. Transposon mutagenesis of the plant-associated Bacillus amyloliquefaciens ssp. plantarum FZB42 revealed that the nfrA and RBAM17410 genes are involved in plant-microbe-interactions. PLoS One 9:e98267

  16. Hofmann, A., D. Fischer, A. Hartmann, and M. Schmid. 2014. Colonization of plants by human pathogenic bacteria in the course of organic vegetable production. Frontiers in Microbiology5 doi: 10.3389/fmicb.2014.00191

  17. Rascher, D., A. Geerlof, E. Kremmer, P. Krämer, S. Michael, A. Hartmann, and M. Rieger. 2014. Total internal reflection (TIRF)-based quantification of procalcitonin for sepsis diagnosis – A point-of-care testing application. Biosensors and Bioelectronics 59: 251-258

  18. Rieger, M., C. Kochleus, D. Teschner, D. Rascher, A. Barton, A. Geerlof, E. Kremmer, M. Schmid, A. Hartmann, and H. Gehlen. 2014. A new ELISA for the quantification of equine procalcitonin in plasma as potential inflammation biomarker in horses. Analytical and Bioanalytical Chemistry 1-6

  19. Walker, A., B. Pfitzner, S. Neschen, M. Kahle, M. Harir, M. Lucio, F. Moritz, D. Tziotis, M. Witting, M. Rothballer, M. Engel, M. Schmid, D. Endesfelder, M. Klingenspor, T. Rattei, W. z. Castell, M. H. de Angelis, A. Hartmann, and P. Schmitt-Kopplin. 2014. Distinct signatures of host-microbial meta-metabolome and gut microbiome in two C57BL/6 strains under high-fat diet. International Society for Microbial Ecology J:1-17.

  20. Nabti E., Bensidhoum L., Tabli N., Dahel D., Weiss A., Rothballer M., Schmid M., and Hartmann A. 2014 Growth stimulation of barley and biocontrol effect on plant pathogenic fungi by a Cellulosimicrobium sp. strain isolated from salt-affected rhizosphere soil in northwestern Algeria. European Journal of Soil Biology 61: 20-26


  21. Straub, D., Rothballer, M., Hartmann, A. and Ludewig, U. 2013 The genome of the endophytic bacterium H. frisingense GSF30T identifies diverse strategies in the Herbaspirillum genus to interact with plants. Evolutionary and Genomic Microbiology 4: 1-10

  22. Wibberg D., Jelonek L., Rupp O., Henning M., Eikmeyer F., Goesmann A., Hartmann A., Borriss R., Grosch R., Puhler A., and Schlüter A. 2013 Establisment and interpretation of the genome sequence of the phytopathogenic fungus Rhizoctonia solani AG1-IB isolate 7/3/14. Journal of Biotechnology 167: 142-155

  23. Sieper T., Forczek S., Matucha M., Krämer P., Hartmann A., and Schröder P. 2013 N-acyl-homoserine lactone uptake and systemic transport in barley rest upon active parts of the plant. New Phytologist DOI 10.1111/nph.12519

  24. Rouws, L. F. M., Leite, J., de Matos, G. F., Zilli, J. E., Coelho, M. R. R., Xavier, G. R., Fischer, D., Hartmann, A., Reis, V. M. and Baldani, J. I. 2013 Endophytic Bradyrhizobium spp. isolates from sugarcane obtained through different culture strategies. Environmental Microbiology Reports doi: 10.1111/1758-2229.12122

  25. Jha, B., Kavita, K., Westphal, J., Hartmann, A. and Schmitt-Kopplin, P. 2013 Quorum Sensing Inhibition by Asparagopsis taxiformis, a Marine Macro Alga: Separation of the Compound that Interrupts Bacterial Communication. Marine Drugs 11: 253-265

  26. Yasmin, S., Hafeez, F. Y., Schmid, M., and Hartmann, A. 2013 Plant-beneficial rhizobacteria for sustainable increased yield of cotton with reduced level of chemical fertilizers. Pakistan Journal of Botany 45: 655-662

  27. Alqueres S., Meneses C., Rouws L., Rothballer M., Baldani I., Schmid M., and Hartmann A. 2013 The bacterial superoxide dismutase and gluthatione reductase are crucial for endophytic colonization of rice roots by Gluconacetobacter diazotrophicus strain PAL5. Molecular Plant-Microbe Interactions 26: 937-945

  28. Chowdhury S.P., Dietel K., Randler M., Schmid M., Junge H., Borriss R., Hartmann A. and Grosch R. 2013 Effects of Bacillus amyloliquefaciens FZB42 on lettuce growth and health under pathogen pressure and its impact on the rhizosphere bacterial community. PLoS ONE 8: e68818. doi:10.1371/journal.pone.0068818


  29. Hartmann, A., Reis, V.M., and Okon, 2012 Obituary for Professor Robert Harza Burris. Plant Soil 356: 297-298

  30. Hense, B.A., Muller, J., Kuttler, C., and Hartmann, A. 2012 Spatial heterogeneity of autoinducer regulation systems. Sensors 12: 4156-4171

  31. Jha, B., Gontia, I., and Hartmann, A. 2012 The roots of the halophyte Salicornia brachiata are a source of new halotolerant diazotrophic bacteria with plant growth-promoting potential. Plant Soil 356: 265-277

  32. Kaestli, M., Schmid, M., Mayo, M., Rothballer, M., Harrington, G., Richardson, L., Hill, A., Hill, J., Tuanyok, A., Keim, P., Hartmann, A., and Currie, B.J. 2012 Out of the ground: aerial and exotic habitats of the melioidosis bacterium Burkholderia pseudomallei in grasses in Australia. Environmental Microbiology 14: 2058-2070

  33. Li, D., Rothballer, M., Engel, M., Hoser, J., Schimdt, T., Kuttler, C., Schmid, M., Schloter, M. and Hartmann, A. 2012 Phenotypic variation in Acidovorax radicis N35 influences plant growth promotion. FEMS Microbiology Ecology 79: 751-762

  34. Frohlich, A., Buddrus-Schiemann, K., Durner, J., Hartmann, A., and von Rad, U. 2012 Response of barley to root colonization by Pseudomonas sp. DSMZ 13134 under laboratory, greenhouse, and field conditions. Journal of Plant Interactions 7: 1-9

  35. Timmers, R.A., Rothballer, M., Strik, D.P.B.T.B., Engel, M., Schulz, S., Schloter, M., Hartmann, A., Hamelers, B. and Buisman, C. 2012 Microbial community structure elucidates performance of Glyceria maxima plant microbial fuel cell. Applied Microbiology and Biotechnology 94: 537-548

  36. Hochwind, K., Weinmaier, T., Schmid, M., van Hemert, S., Hartmann, A., Rattei, T., and Rothballer M. 2012 Draft Genome Sequence of Lactobacillus casei W56. Journal of Bacteriology 194: 6638

  37. Hartmann, A., and Schikora, A. 2012 Quorum sensing of bacteria and trans-kingdom interactions of N-Acyl homoserine lactones with eukaryotes. Journal of Chememistry and Ecology 38: 704-713

  38. Kellermann, C., Selesi, D., Lee N., Hugler, M., Esperschütz, J., Hartmann, A., and Griebler, C. 2012 Microbial CO2 fixation potential in a tar-oil-contaminated porous aquifer. FEMS Microbioligy Ecology 81: 172-187

  39. Varma, A., Bakshi, M., Lou, B., Hartmann, A., and Oelmueller, R. 2012 Piriformospora indica: A novel plant growth-promoting mycorrhizal fungus. Agricultural Research 1: 117-131

  40. Trejo, A., de-Bashan, L. E., Hartmann, A., Hernandez, J.P., Rothballer, M., Schmid, M. and Bashan, Y. 2012. Recycling waste debris of immobilized microalgae and plant growth-promoting bacteria from wastewater treatment as a resource to improve fertility of eroded desert soil. Environmental and Experimental Botany 75 : 65-73

  41. Fischer, D., Pfitzner, B., Schmid, M., Simoes-Araujo, J. L., Reis, V. M., Pereira, W., Ormeño-Orrillo, E., Hai, B., Hofmann, A., Schloter, M., Martinez-Romero, E., Baldani, J. I. and Hartmann, A. 2012 Molecular characterisation of the diazotrophic bacterial community in uninoculated and inoculated field-grown sugarcane (Saccharum sp.). Plant and Soil 356: 83-99


  42. de-Bashan, L.E., Schmid, M., Rothballer, M., Hartmann, A., and Bashan Y., 2011 Cell-cell interaction in the eukaryote-prokaryote model using the microalgae Chlorella vulgaris and the bacterium Azospirillum brasilense immobilized in polymer beads. Journal of Phycology 47:1350-1359

  43. Gontia, I., Kavita, K., Schmid, M., Hartmann, A. and Jha, B. 2011 Brachybacterium saurashtrense sp. nov., a halotolerant root-associated bacterium with plant growth promoting potential. Internatonal Journal of Systematic and Evolutionary Microbiology DOI:10.1099/ijs.0.023176-0

  44. Li, D., Rothballer, M., Schmid, M., Esperschutz, J. and Hartmann, A. 2011 Acidovorax radicis sp. nov., a wheat-root-colonizing bacterium. Internatonal Journal of Systematic and Evolutionary Microbiology 61: 2589-2594

  45. Isaza, L. A., Opelt, K., Wagner, T., Mattes, E., Bieber, E., Hatley, E. O., Roth, G., Sanjuan, J., Fischer, H.-M., Sandermann, H., Hartmann, A. and Ernst, D. 2011 Lack of Glyphosate resistance gene transfer from Roundup Ready Soybean to Bradyrhizobium japonicum under field and laboratory conditions. Z. Naturforsch. 66c


  46. Nabti E., Sahnoune M., Ghoul M., Fischer D., Hofmann A., Rothballer M., Schmid M., and Hartmann A. 2010 Restoration of growth of durum wheat (Triticum durum var. waha) under saline conditions due to inoculation with the rhizosphere bacterium Azospirillum brasilense NH and extracts of the marine alga Ulva lactuca. Journal of Plant Growth Regulation 29: 6-22

  47. Buddrus-Schiemann, K., Schmid, M., Schreiner, K., Welzl, G., and Hartmann, A. 2010 Root colonization by Pseudomonas sp. DSMZ 13134 and impact on the indigenous rhizosphere bacterial community of barley. Microbial Ecology 60: 381–393


  48. Schmid, M., Iversen, C., Gontia, I., Stephan, R., Hofmann, A., Hartmann, A., Jha, B., Eberl, L., Riedel, K. and Lehner, A. 2009 Evidence for a plant-associated natural habitat for Cronobacter spp. Research in Microbiology 160: 608 - 614

  49. Paul Chowdhury S., Schmid M., Hartmann A., and Tripathi A. K. 2009 Diversity of 16S-rRNA and nifH genes derived from rhizosphere soil and roots of an endemic drought tolerant grass, Lasiurus sindicus. European Journal of Soil Biology 45: 114-122

  50. Jha B., Thakur M. C., Gontia I., Albrecht V., Stoffels M., Schmid M., and Hartmann A. 2009 Isolation, partial identification and application of diazotrophic rhizobacteria from traditional Indian rice cultivars. European Journal of Soil Biology 45: 62-72

  51. Oliveira A.L.M, Stoffels M., Schmid M., Reis V.M., Baldani J.I., and Hartmann A. 2009 Colonization of sugarcane plantlets by mixed inoculations with diazotrophic bacteria. European Journal of Soil Biology 45: 106-113

  52. Hartmann A., Schmid M., van Tuinen D., and Berg G. 2009 Plant-driven selection of microbes. Plant and Soil 321: 235-257 doi: 10.1007/s11104-008-9814-y

  53. Rosenberg, K., Bertaux, J., Krome, K., Hartmann, A., Scheu, S, and Bonkowski, M. 2009 Soil amoebae rapidly change bacterial community composition in the rhizosphere of Arabidopsis thaliana. ISME Journal 3: 675-684


  54. Buddrus-Schiemann K., Schmid M., Schreiner K., Welzl G., and Hartmann A. (2010). Root colonization by Pseudomonas sp. DSMZ 13134 and impact on the indigenous rhizosphere bacterial community of barley. Microbial Ecology 60: 381–393

  55. Wagner T., Arango Isaza L.M., Grundmann S., Dörfler U., Schroll R., Schloter M., Hartmann A., Sandermann H., and Ernst D. 2008 The probability of a horizontal gene transfer from Roundup Ready® soybean to microorganisms: a risk assessment study on the GSF lysimeter station. Water, Air, and Soil Pollution: Focus 8: 155-162

  56. Rothballer M., Eckert B., Schmid M., Fekete A., Schloter M., and Hartmann A. 2008 Endophytic root colonization of gramineous plants by Herbaspirillum frisingense. FEMS Microbiology Ecology 66: 85-95

  57. Sharma M., Schmid M., Rothballer M., Hause G., Zuccaro A., Imani J., Kampfer P., Schäfer P., Hartmann A., and Kogel K.-H. 2008 Detection and identification of bacteria intimately associated with representatives of the order Sebacinales. Cellular Microbiology 10: 2235–2246

  58. Hartmann, A., Rothballer, M. and Schmid, M. 2008 Lorenz Hiltner, a pioneer in rhizosphere microbial ecology and soil bacteriology research. Plant and Soil 312: 7-14

  59. Ernst, D., Rosenbrock-Krestel, H., Kirchhof, G., Bieber, E., Giunaschwili, N., Müller, R., Fischbeck, G., Wagner, T., Sandermann, H., Hartmann A. 2008 Molecular investigations of the soil, rhizosphere and transgenic glufosinate resistant rape and maize plants in combination with herbicide (Basta®) application under field conditions. Zeitschrift für Naturforschung 63: 864-872

  60. von Rad, U., Klein, I., Dobrev, P.I., Kottova, J., Zazimalova, E., Fekete, A., Hartman,n A., Schmitt-Kopplin, P., Durner, J. 2008 Response of Arabidopsis thaliana to N-hexanoyl-DL-homoserine-lactone, a bacterial quorum sensing molecule produced in the rhizosphere. Planta 229: 73-85

  61. Ekschmitt, K., Kandeler, E., Poll, C., Brune, A., Buscot, F., Friedrich, M., Gleixner, G., Hartmann, A., Kästner, M., Marhan, S., Miltner, A., Scheu, S., Wolters, V. 2008. Soil carbon preservation through habitat constraints and biological limitations on decomposer activity. Journal of Plant Nutrition Soil Science 171: 27-35

  62. Barriuso J., Ramos Solano, B., Fray, R.G., Cámara, M., Hartmann, A., Gutiérrez Manero, F.J. 2008. Transgenic tomato plants alter quorum sensing in plant growth promoting rhizobacteria. Plant Biotechnology Journal 6: 442-452


  63. Fekete, A., Frommberger, M., Rothballer, M., Li, X., Englmann, M., Fekete, J., Hartmann, A., Eberl, L. and Schmitt-Kopplin, P. 2007. Identification of bacterial N-acylhomoserine lactones (AHLs) with a combination of ultra-performance liquid chromatography (UPLC), ultra-high resolution mass spectrometry, and in-situ biosensors. Analytical and Bioanalytical Chemistry 387: 455-467

  64. Wang, F., Grundmann, S., Schmid, M., Dorfler, U., Rohrer, S., Munch, J. C., Hartmann, A., Xin, J. and Schroll, R. 2007. Isolation and characterization of 1,2,4-trichlorobenzene mineralizing Bordetella sp. and its bioremediation potential in soil. Chemosphere 67: 896-902

  65. Selesi, D., Pattis, I., Schmid, M., Kandeler. E. and Hartmann, A. 2007. Quantification of bacterial RubisCO genes in soils by cbbL targeted real-time PCR. Journal of Microbiological Methods 69: 497-503

  66. Chowdhury, S. P., Schmid, M., Hartmann, A. and Tripathi, A.K. 2007. Identification of diazotrophs in the culturable bacterial community associated with roots of Lasiurus sindicus, a perennial grass of Thar Desert, India. Microbial Ecology 54: 82-90

  67. Hense, B.A., Kuttler, C., Muller, J., Rothballer, M., Hartmann, A. and Kreft, J.-U. 2007. Does efficiency sensing unify diffusion and quorum sensing? Nature Reviews Microbiology 5: 230-239

  68. Nabti, E., Sahnoune, M., Adjrad, S., van Dommelen, A., Ghoul, M., Schmid, M. and Hartmann, A. 2007. A halophilic and osmotolerant Azospirillum brasilense strain from Algerian Soil restores wheat growth under saline conditions. Engineering in Life Sciences 7: 354-360

  69. Bertaux, J., Gloger, U., Schmid, M., Hartmann, A. and Scheu, S. 2007. Routine fluorescence in situ hybridization in soil. Journal of Microbiological Methods 69: 451-460

  70. Gotz, C., Fekete, A., Gebefugi, I., Forczek, S. T., Fuksova, K., Li, X., Englmann, M., Gryndler, M., Hartmann, A., Matucha, M., Schmitt-Kopplin, P. and Schroder, P. 2007. Uptake, degradation and chiral discrimination of N-Acyl-D/L-homoserine lactones by barley (Hordeum vulgare) and yam bean (Pachyrhizus erosus) plants. Analytical and Bioanalytical Chemistry 389: 1447-1457


  71. Bathe, S., Achouak, W., Hartmann, A., Heulin, T., Schloter, M. and Lebuhn, M. 2006. Genetic and phenotypic microdiversity of Ochrobactrum spp. FEMS Microbiology Ecology 56: 272-280

  72. Schuhegger, R., Ihring, A., Gantner, S., Bahnweg, G., Knappe, C., Vogg, G., Hutzler, P., Schmid, M., Van Breusegem, F., Eberl, L., Hartmann, A. and Langebartels, C. 2006. Induction of systemic resistance in tomato plants by N-acyl-L-homoserine lactone-producing rhizosphere bacteria. Plant, Cell and Environment 29: 909-918

  73. Gantner, S., Schmid, M., Durr, C., Schuhegger, R., Steidle, A., Hutzler, P., Langebartels, C., Eberl, L., Hartmann, A. and Dazzo, F.B. 2006. In situ quantitation of the spatial scale of calling distances and population density-independent N-acylhomoserine lactone- mediated communication by rhizobacteria colonized on plant roots. FEMS Microbiology Ecology 56: 188-194

  74. Kutter, S., Hartmann, A. and Schmid, M. 2006. Colonization of barley (Hordeum vulgare) with Salmonella enterica and Listeria spp. FEMS Microbiology Ecology 56: 262-271

  75. Rothballer, M., Schmid, M., Klein, I., Gattinger, A., Grundmann, S. and Hartmann A. 2006. Herbaspirillum hiltneri sp. nov., isolated from surface-sterilized wheat roots. International Journal of Systematic and Evolutionary Microbiology 56: 1341-1348

  76. Muller, J., Kuttler, C., Hense, B.A., Rothballer, M. and Hartmann, A. 2006. Cell-cell communcation by quorum sensing and dimension-reduction. Journal of Mathematical Biology 53: 672-702

  77. Li, X., Fekete, A., Englmann, M., Götz, C., Rothballer, M., Buddrus, K., Cai, C., Schröder, P., Hartmann, A., Chen, G. and Schmitt-Kopplin, P. 2006. Development and application of a method for the analysis of N-acylhomoserine lactones by solid-phase extraction and ultra high pressure liquid chromatography Journal of Chromatography 1134: 186-193

  78. Lebuhna, M., Bathe, S., Achouak, W., Hartmann, A., Heulin, T. and Schloter, M. 2006. Comparative sequence analysis of the internal transcribed spacer 1 of Ochrobactrum species. Systematic and Applied Microbiology 29: 265–275


  79. Azevedo A.S., Teixeira K.R.S., Kirchhof G., Hartmann A., and Baldani J.I. 2005. Influence of soil and host plant crop on the genetic diversity of Azospirillum amazonense isolates. Pedobiologia 49: 565-576

  80. Stein, S., Selesi, D., Schilling, Rolf., Pattis, I., Schmid, M. and Hartmann, A. 2005 Microbial activity and bacterial composition of H2-treated soils with net CO2 fixation. Soil Biology and Biochemistry 37: 1938-1945

  81. Berg, G., Eberl, L. and Hartmann, A. 2005. The rhizosphere as a reservoir for opportunistic human pathogenic bacteria. Environmental Microbiology 7: 1673-1685

  82. Bertaux, J., Schmid, M., Hutzler, P., Hartmann, A., Garbaye, J. and Frey-Klett, P. 2005. Occurrence and distribution of endobacteria in the plant-associated mycelium of the ectomycorrhizal fungus Laccaria bicolor S238N. Environmental Microbiology 7: 1786-1795

  83. Courty, P.-E., Pritsch, K., Schloter, M., Hartmann, A. and Garbaye, J. 2005. Activity profiling of ectomycorrhiza communities in two forest soils using multiple enzymatic tests. New Phytologist 167: 309-319

  84. Frommberger, M., Hertkorn, N., Englmann, M., Jakoby, S., Hartmann, A., Kettrup, A. and Schmitt-Kopplin, Ph. 2005. Analysis of N-acylhomoserine lactones after alkaline hydrolysis and anion-exchange solid-phase extraction by capillary zone electrophoresis-mass spectrometry. Electrophoresis 26: 1523-1532

  85. Herschkovitz, Y., Lerner, A., Davidov, Y., Rothballer, M., Hartmann, A., Okon, Y. and Jurkevitch, E. 2005. Inoculation with the plant growth promoting rhizobacterium Azospirillum brasilense causes little disturbance in the rhizosphere and rhizoplane of maize (Zea mays). Microbial Ecology 50: 277-288

  86. Laturnus, F., Fahimi, I., Gryndler, M., Hartmann, A., Heal, M.R., Matucha, M., Scholer, H.F., Schroll, R. and Svensson, T. 2005. Natural formation and degradation of chloroacetic acids and volatile organochlorines in forest soils. Environmental Science and Pollution Research 12: 233-244

  87. Miltner, A., Kopinke, F.-D., Kindler, R., Selesi, D., Hartmann, A. and Kastner, M. 2005. Non-photosynthetic CO2 fixation by soil microorganisms. Plant and Soil 269: 193-203

  88. Rothballer, M., Schmid, M., Fekete, A. and Hartmann, A. 2005. Comparative in situ analysis of ipdC-gfpmut3 promotor fusions of Azospirillum brasilense strains Sp7 and Sp245. Environmental Microbiology 7: 1839-1846

  89. Selesi, D., Schmid, M. and Hartmann, A. 2005. Diversity of "green-like" and "red-like" ribulose-1,5-bisphosphate carboxylase/oxygenase large subunit genes (cbbL) in differently managed agricultural soils. Applied and Environmental Microbiology 71: 175-177

  90. K. Pritsch, K., Luedemann, G., Matyssek, R., Hartmann, A., Schloter, M., Scherb, H. and Grams, T.E.E. 2005. Mycorrhizosphere responsiveness to atmospheric ozone and inoculation with Phytophthora citricola in a phytotron Experiment with spruce/beech mixed cultures. Plant Biology 7: 718–727


  91. Frommberger, M., Schmitt-Kopplin, P., Ping, G., Frisch, H., Schmid, M., Zhang, Y., Hartmann, A. and Kettrup, A. 2004. A simple and robust set-up for on-column sample preconcentration–nano-liquid chromatography – electrospray ionization mass spectrometry for the analysis of N-homoserine lactones. Analytical and Bioanalytical Chemistry 378: 1014-1020

  92. Pritsch, K., Raidl, S., Marksteiner, E., Blaschke, H., Agerer, R., Schloter, M. and Hartmann, A. 2004 A rapid and highly sensitive method for measuring enzyme activities in single mycorrhizal tips using 4-methylumbelliferone-labelled fluorogenic substances in a microplate system 2004 Journal of Microbiological Methods 58: 233-241

  93. Reis, V.M., Estrada-de los Santos, P., Tenorio-Salgado, S., Vogel, J., Stoffels, M., Guyon, S., Mavingui, P., Baldani, V.L.D., Schmid, M., Baldani, J.I., Balandreau, J., Hartmann, A. and Caballero-Mellado, J. 2004. Burkholderia tropica sp. nov., a novel nitrogen-fixing, plant-associated bacterium. International Journal of Systematic and Evolutionary Microbiology 54: 2155-2162


  94. Lucas-García, J.A., Schloter, M., Durkaya, T., Hartmann, A. and Gutiérrez-Mañero, F.J. 2003 Colonization of pepper roots by a plant growth promoting Pseudomonas fluorescens strain. Biology and Fertility of Soils 37: 381-385

  95. Bertaux, J., Schmid, M., Chemidlin Prevost-Boure, N., Churin, J.L., Hartmann, A., Garbaye,J. and Frey-Klett, P. 2003. In situ identification of intracellular bacteria related to Paenibacillus spp. in the mycelium of the ectomycorrhizal fungus Laccaria bicolor S238N. Applied and Environmental Microbiology 69: 4243-4248

  96. Frommberger, M., Schmitt-Kopplin, P., Menzinger, F., Albrecht, V., Schmid, M., Eberl, L., Hartmann, A. and Kettrup, A. 2003. Analysis of N-acyl-L-homoserine lactones produced by Burkholderia cepacia with partial filling micellar electrokinetic chromatography - electrospray ionization-ion trap mass spectrometry. Electrophoresis 24: 3067-3074

  97. Metz, S., Beisker, W., Hartmann, A. and Schloter, M. 2003. Detection methods for the expression of the dissimilatory copper-containing nitrite reductase gene (DnirK) in environmental samples. Journal of Microbiological Methods 55: 41-50

  98. Rothballer, M., Schmid, M. and Hartmann, A. 2003. In situ localization and PGPR-effect of Azospirillum brasilense strains colonizing roots of different wheat varieties. Symbiosis 34: 261-279

  99. Shmid, M. and Hartmann, A. 2003. Molecular Phylogeny and ecology of root associated diazotrophic alfa- and beta proteobacteria. In: Associative and Endophytic Nitrogen-fixing Bacteria and Cyanobacterial Association. (Eds.) C. Elmerich and W. E. Newton. Kluwer Academic Publishers, Netherlands. Chapters 2. pp. 1-20


  100. Jontofsohn M., Pfister G., Severin-Edmair G., Schramm K.-W., Hartmann A., and Schloter M. 2002. Bacterial community structure in lake sediments of microcosms contaminated with nonylphenol. Journal of Soils and Sediments 2: 211-215

  101. Jontofsohn, M., Stoffels, M., Hartmann, A., Pfister, G., Juttner, I., Severin-Edmeir, G., Schramm, K.-W. and Schloter, M. 2002. Influence of nonylphenol on the microbial community of lake sediments in microcosms. The Science of the Total Environment 285: 3-10

  102. Metz, S., Hartmann, A. and Schloter, M. 2002. Development and characterization of murine monoclonal antibodies specific for dissimilatory copper nitrite reductase. Hybridoma and Hybridomics 21: 351-357

  103. Emmerling, C., Schloter, M., Hartmann, A. and Kandeler, E. 2002 Functional diversity of soil organisms: a review of recent research activities in Germany. Journal of plant nutrition and soil science 165: 408-420


  104. Bach, H.J., Hartmann, A., Schloter, M. and Munch, J.C. 2001. PCR primers and functional probes for amplification and detection of bacterial genes for extracellular peptidases in single strains and in soil. Journal of Microbiological Methods 44: 173-182

  105. Eckert, B., Weber, O.B., Kirchhof, G., Halbritter, A., Stoffels, M. and Hartmann, A. 2001. Azospirillum doebereinerae sp. nov., a nitrogen-fixing bacterium associated with the C4-grass Miscanthus. International Journal of Systematic and Evolutionary Microbiology 51: 17-26

  106. Kirchhof, G., Eckert, B., Stoffels, M., Baldani, J.I., Reis, V.M. and Hartmann, A. 2001. Herbaspirillum frisingense sp. nov., a new nitrogen fixing bacterial species occurring in C4-energy plants. International Journal of Systematic and Evolutionary Microbiology 51: 157-168

  107. Steidle, A., Sigl, K., Schuhegger, R., Ihring, A., Schmid, M., Gantner, S., Stoffels, M., Riedel, K., Givskov, M., Hartmann, A., Langebartels, C. and Eberl, L. 2001. Visualization of N-Acylhomoserine lactone-mediated cell-cell communication between bacteria colonizing the tomato rhizosphere. Applied and Environmental Microbiology 67: 5761-5770

  108. Stoffels, M., Castellanos, T. and Hartmann, A. 2001. Design and application of new 16S rRNA-targeted oligonucleotide probes for the Azospirillum-Skermanella-Rhodocista-cluster. Systematic and Apllied Microbiology 24: 83-97


  109. Mogge B., Loferer C., Agerer R., Hutzler P., and Hartmann A. 2000. Bacterial community structure and colonization patterns of Fagus sylvatica L. ectomycorrhizospheres as determined by fluorescence in situ hybridization (FISH) and confocal laser scanning microscopy (CSLM). Mycorrhiza 9: 272-278

  110. Lebuhn, M., Achouak, W., Schloter, M., Berge, O., Meier, H., Hartmann, A. and Heulin, T. 2000. Taxonomic characterization of Ochrobactrum sp. isolates from soil samples and wheat roots, and description of Ochrobactrum tritici sp. nov. and Ochrobactrum grignonense sp. nov. International Journal of Systematic and Evolutionary Microbiology 50: 2207-2223

  111. Schloter, M., Lebuhn, M., Heulin, T. and Hartmann, A. 2000. Ecology and evolution of bacterial microdiversity. FEMS Microbiology Reviews 24: 647-660


  112. Bach, H.-J., Errampalli, D., Leung, H.T., Lee, H., Hartmann, A., Trevors, J.T. and Munch, J.C. 1999. Specific detection of the gene for the extracellular neutral protease of Bacillus cereus by PCR and blot hybridization. Applied and Environmental Microbiology 65: 3226-3229

  113. Bach, H.-J., Hartmann, A., Trevors, J.T. and Munch, J.C. 1999. Magnetic capture- hybridization method for purification and probing of mRNA for neutral protease of Bacillus cereus. Journal of Microbiological Methods 37: 187-192

  114. Winkelmann, G., Busch, B., Hartmann, A., Kirchhof, G., Sußmuth, R. and Jung, G. 1999. Degradation of desferrioxamines by Azospirillum irakense: Assignment of metabolites by HPLC/electrospray mass spectrometry. BioMetals 12: 255-264


  115. Gilbert B., Aßmus B., Hartmann A., and Frenzl P. 1998. In situ localization of two methanotrophic strains in the rhizosphere of rice plants. FEMS Microbiology Ecology 25: 117-128

  116. Kirchhof G., Baldani J.I., Reis V.M., and Hartmann A. 1998. Molecular assay to identify Acetobacter diazotrophicus and detect its occurrence in plant tissues. Canadian Journal of Microbiology 44: 12-19

  117. Schloter M., and Hartmann A. 1998. Endophytic and surface colonization of wheat roots (Triticum aestivum) by different Azospirillum brasilense strains studied with strain-specific monoclonal antibodies. Symbiosis 25: 159-179

  118. Schloter, M., Zelles, L., Hartmann, A. and Munch, J.C. 1998 New quality of assessment of microbial diversity in arable soils using molecular and biochemical methods. Zeitschrift fuer Pflanzenernaehrung und Bodenkunde 161: 425-431


  119. Lebuhn M., Heulin T., and Hartmann A. 1997. Production of auxin and other indolic and phenolic compounds by Paenibacillus polymyxa strains isolated from different proximity to plant roots. FEMS Microbiology Ecology 22: 325-334

  120. Kirchhof, G., Schloter, M., Aßmus, B. and Hartmann, A. 1997 Molecular microbial ecology approaches applied to diazotrophs associated with non-legumes. Soil Biology and Biochemistry 29: 853-862

  121. Aßmus, B., Schloter, M., Kirchhof, G., Hutzler, P. and Hartmann, A. 1997. Improved in situ tracking of rhizosphere bacteria using dual staining with fluorescence-labeled antibodies and rRNA-targeted oligonucleotides. Microbial Ecology 33: 32-40

  122. Kirchhof, G., Reis, V.M., Baldani, J.I., Eckert, B., Dobereiner, J. and Hartmann, A. 1997. Occurrence, physiological and molecular analysis of endophytic diazotrophic bacteria in gramineous energy plants. Plant and Soil 194: 45-55

  123. Ludwig, W., Bauer, S.H., Bauer, M., Held, I., Kirchhof, G., Schulze, R., Huber, I., Spring, S., Hartmann, A. and Schleifer, K.H. 1997. Detection and in situ localization of representatives of a widely distributed new bacterial phylum. FEMS Microbiology Letters 153: 181-190

  124. Schloter, M., Wiehe, W., Aßmus, B., Steindl, H., Becke, H. and Hoflich, G. 1997. Root colonization of different plants by plant-growth promoting Rhizobium leguminosarum bv. trifolii R39 studied with monospecific polyclonal antisera. Applied and Environmental Microbiology 63: 2038-2046

  125. Assmus, B.,Hausner, M., Grenier, D., Schloter, M., Hartmann, A. and Goldner, M. 1997 Direct examination of subgingival plaque from a diseased periodontal site using confocal laser scanning microscopy (CLSM). The New microbiologica 20: 155-159

  126. Schloter, M., Bode, W. and Hartmann, A. 1997 Characterization and application of a strain-specific monoclonal antibody against the rhizosphere bacterium Azospirillum brasilense Wa5. Hybridoma 16: 183-187


  127. Schloter, M. and Hartmann, A. 1996 Production and characterization of strain-specific monoclonal antibodies against outer membrane components of Azospirillum brasilense Sp245. Hybridoma 15: 225-32.

  128. Wiehe, W., Schloter, M., Hartmann, A., Höflich, G. 1996 Detection of colonization by Pseudomonas PsIA12 of inoculated roots of Lupinus albus and Pisum sativum in grennhouse experiments with immunological techniques. Symbiosis 20: 129-145

  129. Baldani, J.I., Pot, B., Kirchhof, G., Falsen, E., Baldani, V.L.D., Olivares, F.L., Hoste, B., Kersters, K., Hartmann, A., Gillis, M. and Dobereiner, J. 1996. Emended description of Herbaspirillum; inclusion of [Pseudomonas] rubrisubalbicans, a mild plant pathogen, as Herbaspirillum rubrisubalbicans comb. nov.; and classification of a group of clinical isolates (EF group 1) as Herbaspirillum species 3. International Journal of Systematic Bacteriology 46: 802-810


  130. Albers B.P., Beese F., and Hartmann A. 1995. Flow-microcalorimetric measurements of aerobic and anaerobic soil microbial activities. Biology and Fertility of Soils 19: 203-208

  131. Schloter, M., Aßmus, B. and Hartmann, A. 1995. The use of immunological methods to detect and identify bacteria in the environment. Biotechnology Advances 13: 75-90

  132. Aßmus, B., Hutzler, P., Kirchhof, G., Amann, R., Lawrence, J.R. and Hartmann, A. 1995. In situ localization of Azospirillum brasilense in the rhizosphere of wheat using fluorescently labeled, rRNA-targeted oligonucleotide probes and scanning confocal laser microscopy. Applied and Environmental Microbiology 61: 1013-1019


  133. Beese F., Hartmann A., Beck T., Rackwitz R., and Zelles L. 1994. Microbial community structure and activity in agricultural soils under different management. Zeitschrift für Pflanzenernährung und Bodenkunde 157: 187-195

  134. Hund K., Remde A., Necker U., and Hartmann A. 1994. Regeneration mikrobieller Aktivität in Böden nach natürlichen Streßsituationen - Bewertungskriterium für die Bodenqualität. Bioengineering 6: 38-41

  135. Lebuhn M., Heilmann B., and Hartmann A. 1994. Effects of drying/rewetting stress on microbial auxin production and L-tryptophan catabolism in soils. Biology and Fertility of Soils 18: 302-310

  136. Wagner M., Aßmus B., Amann R., Hutzler P., and Hartmann A. 1994. In situ analysis of microbial consortia in activated sludge using fluorescently labelled, rRNA-targeted oligonucleotide probes and confocal scanning laser microscopy. Journal of Microscopy 176: 181-187

  137. Wagner M., Amann R., Kämpfer P., Aßmus B., Hartmann A., Hutzler P., Ludwig W., Springer N., and Schleifer K.-H. 1994. Identification and in situ detection of Gram-negative filamentous bacteria in activated sludge. Systematic and Applied Microbiology 17: 405-417

  138. Stubner, S., Schlober, M., Moeck, G.S:, Coulton J. W., Ahne, F. and Hartmann A. 1994. Construction of umu-fhuA operon fusions to detect genotoxic potential by an antibody-cell surface reaction. Environmental Toxicology and Water Quality 9: 285-291

  139. Schloter, M., Moens, S., Croes, C., Reidel, G., Esquenet, M., De Mot, R., Hartmann, A, and Michiels, K. 1994. Characterization of cell surface components of Azospirillum brasilense Sp7 as antigenic determinants for strain-specific monoclonal antibodies. Microbiology 140: 823-828


  140. Schloter, M., Borlinghaus, R., Bode, W. and Hartmann, A. 1993 Direct identification, and localization of Azospirillum in the rhizosphere of wheat using fluorescence-labelled monoclonal antibodies and confocal scanning laser microscopy. Journal of microscopy 71: 173-177

  141. Gundisch C., Kirchhof G., Baur M., Bode W., and Hartmann A. 1993 Identification of Azospirillum species by RFLP and pulsed-field gel electrophoresis. Microbial releases 2: 41-45

  142. Lebuhn M., and Hartmann A. 1993. Method for the determination of indole-3-acetic acid and related compounds of L-tryptophan catabolism in soils. Journal of chromatography 629: 255- 266


  143. Schloter, M., Bode, W., Hartmann, A. and Beese, F. 1992 Sensitive chemoluminescence-based immunological quantification of bacteria in soil extracts with monoclonal antibodies. Soil Biology and Biochemistry 24: 399-403

  144. Schloter, M., Bode, W. and Hartmann, A. 1992 Characterization of monoclonal antibodies against cell surface structures of Azospirillum brasilense Sp7 using ELISA techniques. Symbiosis 13: 37-45

  145. Kirchhof G., and Hartmann A. 1992. Development of Azospirillum specific gene-probes based on 23S-rRNA sequences. Symbiosis 13: 27-35

  146. Hartmann, A., Gündisch, C., Bode, W. 1992 Azospirillum mutants improved in iron acquisition and osmotolerance as tools for the investigation of environmental fitness traits. Symbiosis 13: 271–279


  147. Hartmann, A., Prabhu, S.R., Galinski, E.A. 1991 Osmotolerance of diazotrophic rhizosphere bacteria. Plant and Soil 137: 105–109.

  148. Burris R. H., Hartmann A., Zhang Y., and Fu H. 1991. Control of nitrogenase in Azospirillum spp. Plant and Soil 137: 127-124


  149. Fu, H., Hartmann, A., Lowery, R.G., Fitzmaurice, W.P., Roberts, G.P. and Burris, R.H. 1989 Posttranslational regulatory system for nitrogenase activity in Azospirillum spp. Journal of Bacteriology 171: 4679-4685


  150. Hartmann A., and Hurek T. 1988. Effect of carotenoid overproduction on oxygen tolerance of nitrogen fixation in Azospirillum brasilense Sp7. Journal of General Microbiology 134: 2449- 2455

  151. Hartmann, A., Fu, H. and Burris, R. H. 1988. Influence of amino acids on nitrogen fixation activity and growth of Azospirillum spp. Applied and Environmental Microbiology 54: 87-93

  152. Hartmann, A. 1988. Ecophysiological aspects of growth and nitrogen fixation in Azospirillum spp. Plant and Soil 110: 225-238


  153. Hartmann, A. and Burris, R.H. 1987. Regulation of nitrogenase activity by oxygen in Azospirillum brasilense and Azospirillum lipoferum. Journal of Bacteriology 169: 944-948


  154. Hartmann, A., Fu, H. and Burris, R.H. 1986. Regulation of the nitrogenase activity by ammonium chloride in Azospirillum spp. Journal of Bacteriology 165: 864-870


  155. Song, S.D., Hartmann, A. and Burris, R.H. 1985. Purification and properties of the nitrogenase of Azospirillum amazonense. Journal of Bacteriology 164: 1271-1277


  156. Hartmann, A., Singh, M. and Klingmuller, W. 1983 Isolation and characterization of Azospirillum mutants excreting high amounts of indoleacetic acid. Canadian Journal of Microbiology 29: 916-923

  157. Kleiner, D., Alef, K. and Hartmann, A. 1983 Uptake of methionine sulfoximine by some N2- fixing bacteria and its effect on ammonium transport. FEBS letters 164: 121-123


  158. Hartmann A., and Kleiner D. 1982 Ammonium (methylammonium) transport by Azospirillum spp. FEMS Microbiology Letters 15: 65-67


  159. Schneider R., Hartmann A., and Braun V. 1981 Transport of the iron ionophore ferrichrome in Escherichia coli K-12 and Salmonella typhimurium LT2. FEMS Microbiology Letters 11: 115-119

  160. Hartmann A., and Braun V. 1981. Iron uptake and iron limited growth of Escherichia coli K- 12. Archives of Microbiology 130: 353-356


  161. Hartmann A., and Braun V. 1980 Iron uptake in Escherichia coli: Uptake and modification of ferrichrome. Journal of Bacteriology 143: 246-255


  162. Hartmann, A., Fiedler, H.P. and Braun, V. 1979 Uptake and conversion of the antibiotic albomycin by Escherichia coli K-12. European Journal of Biochemistry 99: 517-524


  163. Michel R., Liebl A., Hartmann A., and Neupert W. 1976 Action of intracellular proteinases on mitochondrial translation products of Neurospora crassa and Schizosaccharomyces pombe. Hoppe-Seyler's Zeitschrift für physiologische Chemie 357: 415-426

  164. Braun V., Hancock R.E.W., Hantke K., and Hartmann A. 1976 Functional organization of the outer membrane of Escherichia coli: phage and colicin receptors as components of iron uptake systems. Journal of Supramolecular Structure 5: 37-58



  1. Hartmann, A., James, E. K., deBruijn, F. J. Schwab, S., Rothballer, M., and Schmid, M. 2015. Chapter 3. In Situ localization and strain-specific quantification of Azospirillum and other diazotrophic plant growth-promoting rhizobacteria using antibodies and molecular probes. In: Handbook for Azospirillum Eds.: F.D. Cassán et al. pp. 45-64.


  2. Varma, A., Fekete, A., Srivastava, A., Saxena, A.K., Frommberger, M., Li D., Gschwendter, S., Sherameti, I., Oelmueller, R., Schmitt-Kopplin P., Tripathi S., and Hartmann A. 2013 Chapter 12: Inhibitory Interactions of Rhizobacteria with the Symbiotic Fungus Piriformospora indica. In: Piriformospora indica, Soil Biology 33 (eds.: A. Varma). Berlin Heidelberg, Germany: Springer-Verlag, pp. 201-219

  3. Hartmann, A., Schenk, S.T., Riedel, T., Schroder P., and Schikora, A. 2013 The response of plants toward N-Acyl homoserine lactones of Quorum-Sensing-active bacteria in the rhizosphere. In: Molecular Microbial Ecology of the Rhizosphere, Volume 2, First Edition. Edited by Frans J. de Bruijn. Wiley-Blackwell.

  4. Berg, G., Alavi M., Schmid, M. and Hartmann, A. 2013 The Rhizosphere as a Reservoir for Opportunistic Human Pathogenic Bacteria. In: Molecular Microbial Ecology of the Rhizosphere, Volume 2, First Edition. Edited by Frans J. de Bruijn. Wiley-Blackwell

  5. Rothballer, M. und Hartmann, A. 2013 Von Archaeen und Eukaryoten - "Come together" der altesten Baumeister der Welt. In: BodenLeben - Erfahrungsweg ins Innere der Erde (Hrsg.: Beatrice Voigt), pp. 154-161


  6. Agerer, R., Hartmann, A., Pritsch, K., Raidl, S., Schloter, M., Verma, R. and Weigt, R. 2012 Plants and their ectomycorrhizosphere: cost and benefit of symbiotic soil organisms. In: Growth and Defense in Plants, Ecological Studies 220 (eds. Matyssek et al.). Heidelberg, Germany: Springer Verlag, pp. 213-242

  7. Hampp, R., Hartmann, A. and Nehls, U. 2012 The Rhizosphere: molecular interactions between microorganisms and roots. In: Growth and Defense in Plants, Ecological Studies 220 (eds. Matyssek et al.). Heidelberg, Germany: Springer Verlag, pp. 111-139


  8. Rothballer, M., Engel, M., Strik, D.P., Timmers, R., Schloter, M., Hartmann, A. 2011 Comparison of bacterial rhizosphere communities from plant microbial fuel cells with different current production by 454 amplicon sequencing. Commun. Agric. Appl. Biol. Sci. 76(2): 31-32


  9. Fekete A., Rothballer M., Hartmann A., and Schmitt-Kopplin P. 2010 Identification of bacterial autoinducers. In: Bacterial Signaling (eds.: R. Krämer, K. Jung). Weinheim, Germany: Wiley-VCH Verlag, pp. 95-111


  10. Rothballer M., Schmid M., and Hartmann A. 2009 Diazotrophic bacterial endophytes in Gramineae and other plants. In: Microbiology Monographs: Prokaryotic endosymbionts in plants (ed. K. Pawlowski). Heidelberg, Germany: Springer Verlag, pp. 273-302

  11. Hartmann A., and Schmid M. 2009 Fluorescence in situ hybridization (FISH) technique for the investigation of the structure and function of microbial communities. In: A Textbook of Molecular Biotechnology (eds. Chauhan, A.K., Varma, A.) New Delhi, India: I. K. International Publishing House, chapter 55, pp. 1207-1221


  12. Schmid M., Rothballer M., Hai B., Fekete A., Li X., Englmann M., Frommberger M., Schmitt-Kopplin P., and Hartmann A. 2008 Quorum Sensing in Root-Associated and Endopytic Diazotrophs. In: Biological Nitrogen Fixation: Towards Poverty Alleviation through Sustainable Agriculture (eds.: F.D. Dakora, S.B.M. Chimphango, A.J. Valentine, C. Elmerich, W.E. Newton). The Netherlands: Springer, pp. 313-315

  13. Hense B.A., Kuttler C., Müller J., Rothballer M., Hartmann A., and Kreft J.-U. 2008. Efficiency Sensing – was messen Autoinduktoren wirklich? Biospektrum 01.08: 18-21


  14. Schmid M., and Hartmann A. 2007 Molecular phylogeny and ecology of root associated diazotrophic alpha- and beta-proteobacteria. In: Associative and Endophytic Nitrogen-fixing Bacteria and Cyanobacterial Associations (eds.: C. Elmerich, W. E. Newton). New York, USA: Springer Verlag, chapter 2, pp. 21-40

  15. Hartmann A., Smalla K., and Sørensen J. 2007 Microbial diversity in the rhizosphere: highly resolving molecular methodology to study plant-beneficial rhizosphere bacteria. In: Biodiversity in Agricultural Production Systems (eds.: G. Benckiser, S. Schnell). Boca Raton, Florida, USA: CRC Press and Taylor&Francis Group, pp. 101-130

  16. Schmid M., Rothballer M., and Hartmann A. 2007 Analysis of microbial communities in soil microhabitats using fluorescence in situ hybridization. In: Modern Soil Microbiology, 2nd edition (eds.: J. D. van Elsas, J. K. Jansson, J. Trevors). Boca Raton, Florida, USA: CRC-Press, chapter 12, pp.317-335

  17. Rothballer M., and Hartmann A. 2007 In situ detection of bacterial gene expression in the rhizosphere using gfp promoter fusions. In: COST 631 – Handbook of Methods Used in Rhizosphere Research (eds. J. Luster, R. Finlay), Swiss Federal Research Institute WSL, Birmensdorf, Switzerland, Chapter 4.1.: Microbial growth and visualization of bacteria and fungi, pp. 403-404

  18. Van Elsas J.D., Torsvik V., Hartmann A., Ovreas L., and Jansson J. 2007 The bacteria and archeae in soil. In: Modern Soil Microbiology, 2nd edition (eds. J. D. van Elsas, J. K. Jansson, J. Trevors). Boca Raton, Florida, USA: CRC-Press, chapter 12, pp. 317-335

  19. Dazzo F.B., Schmid M., and Hartmann A. 2007 Immunofluorescence microscopy and fluorescence in situ hybridization combined with CMEIAS and other image analysis tools for soil- and plant-associated microbial autecology. In: Manual of Environmental Microbiology, 3rd edition (eds. C. J. Hurst, R. L. Crawford, J. L. Garland, D. A. Lipson, A.L. Mills, L. D. Stetzenbach) Washington DC, USA: ASM-Press, pp. 712-733


  20. Baldani J.I., Krieg N.R., Baldani V.L.D., Hartmann A., and Döbereiner J. 2005 Genus II. Azospirillum. In: Bergey´s Manual of Systematic Bacteriology, 2nd edition, Vol. II (eds.: D. J. Brenner, N. R. Krieg, J. T. Staley). New York, USA: Springer Verlag, pp. 7-26

  21. Moenne-Loccoz Y., Woo S.L., Okon Y., Bally R., Lorito M., Lemanceau P., and Hartmann A. 2005 Free-living plant-beneficial microorganisms and soil quality. In: Microbiological Methods for Assessing Soil Quality (eds.: J. Bloem, D. W. Hopkins, A. Benedetti). Wallingford, UK: CABI Publishing, chapter 9.5, p. 368

  22. Schmid M., Baldani J.I., and Hartmann A. 2005. The genus Herbaspirillum. In: The Prokaryotes, volume 5: Proteobacteria: Alpha and Beta Subclasses (eds. M. Dworkin, S. Falkow, E. Rosenberg, K.-H. Schleifer, E. Stackebrandt). New York, USA: Springer Verlag, pp. 141-150

  23. Schmid M., Selesi D., Rothballer M., Schloter M., Lee N., Kandeler E., and Hartmann A. 2006. Localization and visualization of microbial community structure and activity in soil microhabitats. In: Soil Biology, Volume 6. Intestinal Microorganisms of Soil Invertebrates (eds.: H. König, A. Varma). New York, USA: Springer Verlag, pp. 439-461


  24. Hartmann A. 2004 Horizontaler Gentransfer: ein natürlicher Prozess. GSF-spezial "Grüne Gentechnik", S. 59-64

  25. Hartmann A., Gantner S., Schuhegger R., Steidle A., Dürr C., Schmid M., Dazzo F.B., Eberl L., and Langebartels C. 2004 N-Acyl homoserine lactones of rhizosphere bacteria trigger systemic resistance in tomato plants. In: Biology of Plant-Microbe Interactions, Volume 4 (eds.: B. Lugtenberg, I. Tikhonovich, N. Provorov). Saint Paul, Minnesota, USA: APS Press, pp. 554-556

  26. Hartmann A., Pukall R., Rothballer M., Gantner S., Metz S., Schloter M., and Mogge B. 2004 Microbial community analysis in the rhizosphere by in situ and ex situ application of molecular probing, biomarker and cultivation techniques. In: Plant Surface Microbiology (eds.: A. Varma, L. Abott, D. Werner, R. Hampp). Berlin, Germany: Springer Verlag, pp. 449-469

  27. Schmid M., Rothballer M., Aßmus B., Hutzler P., Schloter M., and Hartmann A. 2004 Detection of microbes by confocal laser scanning microscopy. In: Molecular Microbial Ecology Manual, 2nd edition (eds.: G. A. Kowalchuk, F. J. De Bruijn, I. M. Head, A. D. L. Akkermans, J. D. van Elsas). Dordrecht, The Netherlands: Kluwer Academic Publishers, chapter 4.03, pp. 875-910


  28. Hartmann A., and Baldani J. I. 2003 The Genus Azospirillum. In: The Prokaryotes, volume 5: Proteobacteria: Alpha and Beta Subclasses (eds. M. Dworkin, S. Falkow, E. Rosenberg, K.-H. Schleifer, E. Stackebrandt). New York, USA: Springer-Verlag, pp. 114-140


  29. Hartmann A., and Schloter M. 2001 Wirkungen auf die Bodenmikroflora. In: Handbuch der Umweltveränderungen und Ökotoxikologie, Band II: Terrestrische Ökosysteme. (Hrsg. R. Guderian). Berlin, Deutschland: Springer-Verlag, Kapitel II 2.2, S. 91-106


  30. Eckert B., Kirchhof G., Stoffels M., Baldani J.I., Weber B.O., and Hartmann A. 2000 Neue diazotrophe Bakterien aus den Rohstoffpflanzen Miscanthus sinensis und Pennisetum purpureum. In: Rhizodeposition und Stoffverwertung (Hrsg. W. Merbach, L. Wittenmayer, J. Augustin). Stuttgart / Leipzig, Deuscthland: B.G. Teubner Verlag, S. 103-109

  31. Hartmann A., Chatzinotas A., Aßmus B., and Kirchhof G. 2000 Molecular microbial ecology studies of diazotrophs associated with non-legumes with special reference to endophytic diazotrophs. In: Microbial Interactions in Agriculture and Forestry, Volume II (eds.: N.S. Subba Rao, Y.R. Dommergues). Enfield, New Hampshire, USA: Science Publishers, pp. 1-14

  32. Hartmann, A., Stoffels, M., Eckert, B., Kirchhof, G. and Schloter. M. 2000 Analysis of the presence and diversity of diazotrophic endophytes. In: Prokaryotic nitrogen fixation: A model system for the analysis of a biological process. (Ed.)E.W. Triplett. Horizon Scientific Press. UK. Chapter 41 pp. 727-736

  33. Hausner M., Lawrence J.R., Wolfaardt G.M., Schloter M., Seiler K.-P., and Hartmann A. 2000 The use of immunological techniques and scanning confocal laser microscopy for the characterization of Agrobacterium tumefaciens and Pseudomonas fluorescens in atrazine-utilizing biofilms. In: Biofilms: Investigative Methods & Applications (eds.: H.-C. Fleming, U. Szewzyk, T. Griebe). Lancaster, Pennsylvania, USA: Technomic Publishing Co., pp. 143-153

  34. Müller E., Aßmus B., Hartmann A., and Seiler K.-P. 2000 The in situ detection of a microbial biofilm community on Karst rock coupon in a groundwater habitat. In: Biofilms: Investigative Methods & Applications (eds.: H.-C. Fleming, U. Szewzyk, T. Griebe). Lancaster, Pennsylvania, USA: Technomic Publishing Co., pp. 225-230


  35. Hartmann A., Schloter M., Bergmüller C., Mölter K., Zelles L., and Munch J.C. 1999 Diversität der Mikroflora von Böden und Sedimenten als ökotoxikologischer Belastungsparameter. In: Ökotoxikologie - ökosystemare Ansätze und Methoden (Hrsg.: J. Oehlmann, B. Markert). Landsberg / Lech, Deutschland: Ecomed-Verlag, S. 200-207


  36. Hartmann, A., Assmus, B., Kirchhof, G. and Schloter, M. 1997 Direct approaches for studying soil microbes. In: van Elsas JD, Trevors JT, Wellington EMH (eds) Modern soil microbiology. Dekker, New York, pp 279-309

  37. Hartmann A., Lawrence J.R., Aßmus B., and Schloter M. 1997 Detection of microbes by laser confocal microscopy. In: Molecular Microbial Ecology Manual (eds.: A. Akkermans, J.D. van Elsas, F.J. de Bruijns). Dordrecht, The Netherlands: Kluwer Academic Publishers, chapter 4.1.10., pp. 1-34


  38. Hartmann A. 1996 Biotechnological aspects of diazotrophic bacteria associated with rice. In: Biological Nitrogen Fixation associated with Rice Production (eds.: M. Rahman et al.). Dordrecht, The Netherlands: Kluwer Academic Publishers, pp. 211-223

  39. Lebuhn M., and Hartmann A. 1996 Auxins, L-tryptophan and related indolic and phenolic catabolites. In: Methods in Soil Biology (eds.: F. Schinner, R. Öhlinger, E. Kandeler, R. Margesin). Berlin / Heidelberg, Germany: Springer Verlag, pp. 268-280

  40. Schloter M., Bode W., and Hartmann A. 1996. Identification and quantification with monoclonal antibodies. In: Methods in Soil Biology (eds.: F. Schinner, R. Öhlinger, E. Kandeler, R. Margesin). Berlin / Heidelberg, Germany: Springer Verlag, pp. 41-46


  41. Hartmann, A., Baldani, J.-I., Kirchhof, G., Aßmus, B., Hutzler, P., Springer, N., Ludwing, W., Baldani, V.-L. and Dobereiner, J. 1995 Taxonomic and ecologic studies of diazotrophic rhizosphere bacteria using phylogenetic probes in: Azospirillum and related microorganisms. NATO ASI Series, ( I. Fendrik et al. eds) Vol. 37 pp. 543-547, Springer-Verlag Berin Heidelberg.

  42. Albers B.P., Hartmann A., and Beese F. 1995 Anaerobic heat output. In: Methods in Applied Soil Microbiology and Biotechnology (eds.: K. Alef, P. Nannipieri). London, UK: Academic Press, pp. 304-306

  43. Steinberg C.E.W., Brüggemann R., Hartmann A., Heller W., Kirchner M., Lienert D., Müller K., Pestlin G., Scheunert I., Seiler K.-P., Ernst D., Spieser O.H., and Klein J. 1995. Ökotoxikologische Testverfahren. In: Handbuch des Umweltschutzes - 79. Erg. Lfd. 6/95. Landsberg / Lech, Deutschland: Ecomed-Verlag, S. 1-102


  44. Hartmann A. 1994. Molecular approaches for the investigation of the genetic composition in aquatic ecosystems. In: Acidification of Freshwater Ecosystems: Implication for the Future (eds.: C.E.W. Steinberg, R.F. Wright). Chichester, UK: John Wiley, pp. 247-257

  45. Hartmann, A. and Zimmer, W. 1994 Physiology of Azospirillum. In: Okon Y (ed) Azospirillum/plant associations. CRC, Boca Raton, Fla., pp 15–39


  46. Hartmann A. 1993 Okologie von Mikroorganismen. In: Handbuch zur Ökologie (Hrsg.: W. Kuttler). Berlin, Deutschland: Analytica Verlag, pp. 235-240

  47. Schloter M., Bode W., and Hartmann A. 1993 Identifizierung und Quantifizierung von Bodenbakterien mit monoklonalen Antikörpern. In: Biologische Arbeitsmethoden (2. Auflage) (Hrsg.: F. Schinner, R. Öhlinger, E. Kandeler, R. Margesin). Berlin, Deutschland: Springer Verlag, S. 44-50

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