AEM
Home Help [Feedback] [For Subscribers] [Archive] [Search] [Contents]
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrowReprints and Permissions
Right arrow Copyright Information
Right arrow Books from ASM Press
Right arrow MicrobeWorld
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Lueders, T.
Right arrow Articles by Kaestner, M.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Lueders, T.
Right arrow Articles by Kaestner, M.
Agricola
Right arrow Articles by Lueders, T.
Right arrow Articles by Kaestner, M.

 Previous Article  |  Next Article 

Applied and Environmental Microbiology, August 2006, p. 5342-5348, Vol. 72, No. 8
0099-2240/06/$08.00+0     doi:10.1128/AEM.00400-06
Copyright © 2006, American Society for Microbiology. All Rights Reserved.

Identification of Bacterial Micropredators Distinctively Active in a Soil Microbial Food Web

Tillmann Lueders,1,3* Reimo Kindler,2 Anja Miltner,2 Michael W. Friedrich,3 and Matthias Kaestner2

Institute of Groundwater Ecology, GSF—National Research Center for Environment and Health, Neuherberg, Germany,1 Department of Bioremediation, UFZ—Center for Environmental Research, Leipzig-Halle, Germany,2 Department of Biogeochemistry, Max Planck Institute for Terrestrial Microbiology, Marburg, Germany3

Received 17 February 2006/ Accepted 8 June 2006

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.

* Corresponding author. Mailing address: Institute of Groundwater Ecology, GSF—National Research Center for Environment and Health, Ingolstaedter Landstrasse 1, 85764 Neuherberg, Germany. Phone: 49-89-31873687. Fax: 49-89-31873361. E-mail: tillmann.lueders{at}gsf.de.

Applied and Environmental Microbiology, August 2006, p. 5342-5348, Vol. 72, No. 8
0099-2240/06/$08.00+0     doi:10.1128/AEM.00400-06
Copyright © 2006, American Society for Microbiology. All Rights Reserved.



This article has been cited by other articles:



Home Help [Feedback] [For Subscribers] [Archive] [Search] [Contents]
J. Bacteriol. Microbiol. Mol. Biol. Rev. Eukaryot. Cell All ASM Journals

Copyright © 2006 by the American Society for Microbiology. All rights reserved.