Diversity of aerobic anoxygenic phototrophic bacteria in paddy soil and their response to elevated atmospheric CO₂.

ABSTRACT: Aerobic anoxygenic phototrophic bacteria (AAnPB) are recognized as an important group driving the global carbon cycling. However, the diversity of AAnPB in terrestrial environment remains largely unknown as well as their responses to the elevated atmospheric CO2. By using culture-independent techniques, the diversity of AAnPB in paddy soil and the changes in response to the rising atmospheric CO₂ were investigated within China FACE (Free-air CO₂ enrichment) platform. There was a phylogenetically diverse AAnPB community with large population size residing in paddy soil. The community structure of AAnPB in bulk and rhizospheric soils stayed almost identical, while the population size was higher in rhizospheric [2.0–2.5 x 10⁸ copy number of pufM genes g-1 dry weight soil (d.w.s.)] than that i

SUBMITTER: Feng Y 

PROVIDER: S-EPMC3815797 | biostudies-literature | 2011 Jan

REPOSITORIES: biostudies-literature