Denitrifying and diazotrophic community responses to artificial warming in permafrost and tallgrass prairie soils.

ABSTRACT: Increasing temperatures have been shown to impact soil biogeochemical processes, although the corresponding changes to the underlying microbial functional communities are not well understood. Alterations in the nitrogen (N) cycling functional component are particularly important as N availability can affect microbial decomposition rates of soil organic matter and influence plant productivity. To assess changes in the microbial component responsible for these changes, the composition of the N-fixing (nifH), and denitrifying (nirS, nirK, nosZ) soil microbial communities was assessed by targeted pyrosequencing of functional genes involved in N cycling in two major biomes where the experimental effect of climate warming is under investigation, a tallgrass prairie in Oklahoma (OK) and the activ

SUBMITTER: Penton CR 

PROVIDER: S-EPMC4523034 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature