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Title (Primary) Identification of bacterial micropredators distinctively active in a soil microbial food web
Author Lueders, T.; Kindler, R.; Miltner, A.; Friedrich, M.W.; Kästner, M.;
Journal Applied and Environmental Microbiology
Year 2006
Department UBT;
Volume 72
Issue 8
Language englisch;
Abstract The understanding of microbial interactions and trophic networks is a prerequisite for the elucidation of the turnover and transformation of organic materials in soils. To elucidate the incorporation of biomass carbon into a soil microbial food web, we added 13C-labeled Escherichia coli biomass to an agricultural soil and identified those indigenous microbes that were specifically active in its mineralization and carbon sequestration. rRNA stable isotope probing (SIP) revealed that uncultivated relatives of distinct groups of gliding bacterial micropredators (Lysobacter spp., Myxococcales, and the Bacteroidetes) lead carbon sequestration and mineralization from the added biomass. In addition, fungal populations within the Microascaceae were shown to respond to the added biomass after only 1 h of incubation and were thus surprisingly reactive to degradable labile carbon. This RNA-SIP study identifies indigenous microbes specifically active in the transformation of a nondefined complex carbon source, bacterial biomass, directly in a soil ecosystem.
ID 2836
Persistent UFZ Identifier http://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=2836
Lueders, T., Kindler, R., Miltner, A., Friedrich, M.W., Kästner, M. (2006):
Identification of bacterial micropredators distinctively active in a soil microbial food web
Appl. Environ. Microb. 72 (8), 5342 - 5348