A Hydration-Based Biophysical Index for the Onset of Soil Microbial Coexistence

Verfasser / Beitragende:
[Gang Wang, Dani Or]
Ort, Verlag, Jahr:
2012
Enthalten in:
Scientific Reports, 2, p. 881
Format:
Artikel (online)
ID: 528785486
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024 7 0 |a 10.3929/ethz-b-000059144  |2 doi 
024 7 0 |a 10.1038/srep00881  |2 doi 
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100 1 |a Wang  |D Gang 
245 1 2 |a A Hydration-Based Biophysical Index for the Onset of Soil Microbial Coexistence  |h [Elektronische Daten]  |c [Gang Wang, Dani Or] 
246 0 |a Sci Rep 
506 |a Open access  |2 ethresearch 
520 3 |a Mechanistic exploration of the origins of the unparalleled soil microbial biodiversity represents a vast and uncharted scientific frontier. Quantification of candidate mechanisms that promote and sustain such diversity must be linked with microbial functions and measurable biophysical interactions at appropriate scales. We report a novel microbial coexistence index (CI) that links macroscopic soil hydration conditions with microscale aquatic habitat fragmentation that impose restrictions on cell dispersion and growth rates of competing microbial populations cohabiting soil surfaces. The index predicts a surprisingly narrow range of soil hydration conditions that suppress microbial coexistence; and for most natural conditions found in soil hydration supports coexistence. The critical hydration conditions and relative abundances of competing species are consistent with limited experimental observations and with individual-based model simulations. The proposed metric offers a means for systematic evaluation of factors that regulate microbial coexistence in an ecologically consistent fashion. 
540 |a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported  |u http://creativecommons.org/licenses/by-nc-sa/3.0  |2 ethresearch 
690 7 |a Soil microbiology  |2 ethresearch 
690 7 |a Microbial ecology  |2 ethresearch 
690 7 |a Environmental sciences  |2 ethresearch 
690 7 |a Biophysics  |2 ethresearch 
700 1 |a Or  |D Dani  |e joint author 
773 0 |t Scientific Reports  |d London : Nature Publishing Group  |g 2, p. 881  |x 2045-2322 
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908 |D 1  |a Journal Article  |2 ethresearch 
950 |B ETHRESEARCH  |P 856  |E 40  |u http://hdl.handle.net/20.500.11850/59144  |q text/html  |z WWW-Backlink auf das Repository (Open access) 
950 |B ETHRESEARCH  |P 100  |E 1-  |a Wang  |D Gang 
950 |B ETHRESEARCH  |P 700  |E 1-  |a Or  |D Dani  |e joint author 
950 |B ETHRESEARCH  |P 773  |E 0-  |t Scientific Reports  |d London : Nature Publishing Group  |g 2, p. 881  |x 2045-2322 
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