Journal
ISME JOURNAL
Volume 9, Issue 6, Pages 1477-1480Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/ismej.2014.205
Keywords
-
Categories
Funding
- National Science Foundation [DEB-1241094, DBI-1126840]
- Direct For Biological Sciences
- Division Of Environmental Biology [1241115, 1146449, 1241094] Funding Source: National Science Foundation
- Div Of Biological Infrastructure
- Direct For Biological Sciences [1126840] Funding Source: National Science Foundation
Ask authors/readers for more resources
Native soil carbon (C) can be lost in response to fresh C inputs, a phenomenon observed for decades yet still not understood. Using dual-stable isotope probing, we show that changes in the diversity and composition of two functional bacterial groups occur with this 'priming' effect. A single-substrate pulse suppressed native soil C loss and reduced bacterial diversity, whereas repeated substrate pulses stimulated native soil C loss and increased diversity. Increased diversity after repeated C amendments contrasts with resource competition theory, and may be explained by increased predation as evidenced by a decrease in bacterial 16S rRNA gene copies. Our results suggest that biodiversity and composition of the soil microbial community change in concert with its functioning, with consequences for native soil C stability.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available