Ralf Conrad

Publications since 2008

2011

Yuan, Y., Conrad, R., Lu, Y. (2011): Transcriptional response of methanogen mcrA genes to oxygen exposure of rice field soil. Environ. Microbiol. Reports 3, 320-328.
Vanitchung, S., Conrad, R., Harvey, N. W., Chidthaisong, A. (2011): Fluxes and production pathways of nitrous oxide in different types of tropical forest soils in Thailand. Soil Sci. Plant Nutr. 57, 650-658.
Shrestha, M., Shrestha, P. M., Conrad, R. (2011): Bacterial and archaeal communities involved in the in situ degradation of 13C labelled straw in the rice rhizosphere. Environ. Microbiol. Reports 3, 587-596.
Pratscher, J., Dumont, M. G., Conrad, R. (2011): Ammonia oxidation coupled to CO2 fixation by Archaea and Bacteria in an agricultural soil. Proc. Natl. Acad. Sci. USA 108, 4170-4175.
Pratscher, J., Dumont, M. G., Conrad, R. (2011): Assimilation of acetate by the putative atmospheric methane oxidizers belonging to the USC clade. Environ. Microbiol. 13, 2692-2701.
Lu, Y. and Conrad, R. (2011): Stable isotope probing and plants. In: Murrell, J. C., Whiteley, A. (Eds.), Stable Isotope Probing and Related Technologies, ASM Press, Washington, 151-163.
Liu, F. and Conrad, R. (2011): Chemolithotrophic acetogenic H2/CO2 utilization in Italian rice field soil. ISME J. 5, 1526-1539.
Hunger, S., Schmidt, O., Hilgarth, M., Horn, M. A., Kolb, S., Conrad, R., Drake, H. L. (2011): Competing formate- and carbon dioxide-utilizing prokaryotes in an anoxic methane-emitting fen soil. Appl. Environ. Microbiol. 77, 3773-3785.
Hernandez, M., Jia, Z., Conrad, R., Seeger, M. (2011): Simazine application inhibits nitrification and changes the ammonia-oxidizing bacterial communities in a fertilized agricultural soil. FEMS Microbiol. Ecol. 78, 511-519.
Fröhlich-Nowoisky, J., Burrows, S. M., Xie, Z. Q., Engling, G., Solomon, P. A., Fraser, M. P., Mayol-Bracero, O. L., Artaxo, P., Begerow, D., Conrad, R., Andreae, M. O., Despres, V., Pöschl, U. (2011): Biogeography in the air: fungal diversity over land and oceans. Biogeosciences Discuss. 8, 7071-7096.
Dumont, M. G., Pommerenke, B., Casper, P., Conrad, R. (2011): DNA, rRNA and mRNA-based stable isotope probing of aerobic methanotrophs in lake sediment. Environ. Microbiol. 13, 1153-1167.
Constant, P., Chowdhury, S. P., Hesse, L., Pratscher, J., Conrad, R. (2011): Genome data mining and soil survey for the novel group 5 [NiFe]-hydrogenase to explore the diversity and ecological importance of presumptive high affinity H2-oxidizing bacteria. Appl. Environ. Microbiol. 77, 6027-6035.
Constant, P., Chowdhury, S. P., Hesse, L., Conrad, R. (2011): Co-localization of atmospheric H2 oxidation activity and high affinity H2-oxidizing bacteria in non-axenic soil and sterile soil amended with Streptomyces sp. PCB7. Soil Biol. Biochem. 43, 1888-1893.
Conrad, R., Noll, M., Claus, P., Klose, M., Bastos, W. R., Enrich-Prast, A. (2011): Stable carbon isotope discrimination and microbiology of methane formation in tropical anoxic lake sediments. Biogeosciences 8, 795-814.
Conrad, R. (2011): Mikrobielle Methanproduktion: Treibhausgas aus Archaeen. Biospektrum 17, 144-145.
Conrad, R. and Klose, M. (2011): Stable carbon isotope discrimination in rice field soil during acetate turnover by syntrophic acetate oxidation or acetoclastic methanogenesis. Geochim. Cosmochim. Acta 75, 1531-1539.
Braker, G. and Conrad, R. (2011): Diversity, structure, and size of N2O-producing microbial communities in soil —What matters for their functioning? Adv. Appl. Microbiol. 75, 33-70.
Botsch, K. C. and Conrad, R. (2011): Fractionation of stable carbon isotopes during anerobic production and degradation of propionate in defined microbial cultures. Org. Geochem. 42, 289-295.

2010

Chowdhury, S. P. and Conrad, R. (2010): Thermal deactivation of high affinity H2 uptake activity in soils. Soil Biol. Biochem. 42, 1574-1580.
Conrad, R., Claus, P., Casper, P. (2010): Stable isotope fractionation during the methanogenic degradation of organic matter in the sediment of an acidic bog lake, Lake Grosse Fuchskuhle. Limnol. Oceanogr. 55, 1932-1942.
Galand, P. E., Yrjälä, K., Conrad, R. (2010): Stable carbon isotope fractionation during methanogenesis in three boreal peatland ecosystems. Biogeosciences 7, 3893-3900
Liu, F. and Conrad, R. (2010): Thermoanaerobacteriaceae oxidize acetate in methanogenic rice field soil at 50oC. Environ. Microbiol. 12, 2341-2364.
Martinson, G. O., Werner, F. A., Scherber, C., Conrad, R., Corre, M. D., Flessa, H., Wolf, K., Klose, M., Gradstein, S. R., Veldkamp, E. (2010): Methane emission from tank bromeliads in neotropical forests. Nature Geoscience 3, 766-769.
Sakai, S., Conrad, R., Liesack, W., and Imachi, H. (2010): Methanocella arvoryzae sp.nov., a hydrogenotrophic methanogen, isolated from Italian rice field soil. Int. J. Syst. Evol. Microbiol., in press.
Noll, M., Klose, M., and Conrad, R. (2010): Effect of temperature change on the composition of the bacterial and archaeal community potentially involved in the turnover of acetate and propionate in methanogenic rice field soil. FEMS Microbiol. Ecol., in press.
Braker, G., Schwarz, J. I. K., and Conrad, R. (2010): Influence of temperature on the composition and activity of denitrifying soil communities. FEMS Microbiol. Ecol., in press.
Jia, Z., Weng, J., Lin, X., and Conrad, R. (2010): Microbial ecology of archaeal ammonia oxidation - a review (in Chinese). Acta Microbiologica Sinica, in press.
Menyailo, O. V., Abraham, W. R., and Conrad, R. (2010): Tree species affect atmospheric CH4 oxidation without altering community composition of soil methanotrophs. Soil Biol. Biochem., 42, 101-107.
Conrad, R., Klose, M., Claus, P., and Enrich-Prast, A. (2010): Methanogenic pathway, 13C isotope fractionation, and archaeal community composition in the sediment of two clearwater lakes of Amazonia. Limnol. Oceanogr., 55, 689-702.
Constant, P., Chowdhury, S. P., Pratscher, J., and Conrad, R. (2010): Streptomycetes contributing to atmospheric molecular hydrogen soil uptake are widespread and are encoding for a putative high affinity [NiFe]-hydrogenase. Environ. Microbiol., 12, 821-829.
Goevert, D. and Conrad, R. (2010): Stable isotope fractionation by acetotrophic sulfur-reducing bacteria. FEMS Microbiol. Ecol., 71, 218-225.
Hori, T., Müller, A., Igarashi, Y., Conrad, R., and Friedrich, M. W. (2010): Identification of iron-reducing microorganisms in anoxic rice paddy soil by 13C-acetate probing. ISME J., 4, 267-278.

2009

Angel, R. and Conrad, R. (2009): In situ measurement of methane fluxes and analysis of transcribed particulate methane monooxygenase in desert soils. Environ. Microbiol., 11, 2598-2610.
Bremer, C., Braker, G., Matthies, D., Beierkuhnlein, C., and Conrad, R. (2009): Plant presence and species combination but not diversity influence denitrifier activity and the composition of nirK-type denitrifier communities in grassland soil. FEMS Microbiol. Ecol., 70, 377-387.
Conrad, R. (2009): The global methane cycle: Recent advances in understanding the microbial processes involved [Minireview]. Environ. Microbiol. Reports, 1, 285-292.
Conrad, R., Klose, M., and Noll, M. (2009): Functional and structural response of the methanogenic microbial community in rice field soil to temperature change. Environ. Microbiol., 11, 1844-1853.
Conrad, R., Claus, P., and Casper, P. (2009): Characterization of stable isotope fractionation during methane production in the sediment of a eutrophic lake, Lake Dagow, Germany. Limnol. Oceanogr., 54, 457-471.
Conrad, R., Klose, M., Claus, P., and Dan, J. (2009): Activity and composition of the methanogenic archaeal community in soil vegetated with wild rice versus cultivated rice. Soil Biol. Biochem., 41, 1390-1395.
Goevert, D. and Conrad, R. (2009): Effect of substrate concentration on carbon isotope fractionation during acetoclastic methanogenesis by Methanosarcina barkeri, M. acetivorans and in rice field soil. Appl. Environ. Microbiol., 75, 2605-2612.
Jia, Z. and Conrad, R. (2009): Bacteria rather than Archaea dominate microbial ammonia oxidation in an agricultural soil. Environ. Microbiol., 11, 1658-1671.
Qiu, Q., Conrad, R., and Lu, Y. (2009): Cross feeding of methane carbon among bacteria on rice roots revealed by DNA-stable isotope probing. Environ. Microbiol. Reports, 1, 355-361.
Yuan, Y., Conrad, R., and Lu, Y. (2009): Responses of methanogenic archaeal community to oxygen exposure in rice field soil. Environ. Microbiol. Reports, 1, 347-354.

2008

Conrad, R. (2008): Temperature effects on methanogenic microbial communities. In: Microbes and the Environment: Perspectives and Challenges, (Liu, S. J. and Drake, H. L., Eds.), pp. 35-40. Science Press, Beijing.
Conrad, R., Klose, M., Noll, M., Kemnitz, D., and Bodelier, P. L. E. (2008): Soil type links microbial colonization of rice roots to methane emission. Global Change Biol., 14, 657-669.
Goevert, D. and Conrad, R. (2008): Carbon isotope fractionation by sulfate-reducing bacteria using different pathways for the oxidation of acetate. Environ. Sci. Technol., 42, 7813-7817.
Guo, R. and Conrad, R. (2008): Extraction and characterization of soil hydrogenases oxidizing atmospheric hydrogen. Soil Biol. Biochem., 40, 1149-1154.
Menyailo, O. V., Hungate, B. A., Abraham, W. R., and Conrad, R. (2008): Changing land use reduces soil CH₄ uptake by altering biomass and activity but not composition of high-affinity methanotrophs. Global Change Biol., 14, 2405-2419.
Noll, M., Frenzel, P., and Conrad, R. (2008): Selective stimulation of Type I methanotrophs in a rice paddy by urea fertilization revealed by RNA-based stable isotope probing. FEMS Microbiol. Ecol., 65, 125-132.
Qiu, Q. F., Noll, M., Abraham, W. R., Lu, Y. H., and Conrad, R. (2008): Applying stable isotope probing of phospholipid fatty acids and rRNA in a Chinese rice field to study activity and composition of the methanotrophic bacterial communities in situ. ISME J., 2, 602-614.
Schwarz, J. I. K., Eckert, W., and Conrad, R. (2008): Response of the methanogenic microbial community of a profundal lake sediments (Lake Kinneret, Israel) to algal deposition. Limnol. Oceanogr., 53, 113-121.
Shrestha, M., Abraham, W. R., Shrestha, P. M., Noll, M., and Conrad, R. (2008): Activity and composition of methanotrophic bacterial communities in planted rice soil studied by flux measurements, analyses of pmoA gene and stable isotope probing of phospholipid fatty acids. Environ. Microbiol., 10, 400-412.

Complete publication list of Ralf Conrad