Broad distribution of diverse anaerobic ammonium-oxidizing bacteria in chinese agricultural soils.

ABSTRACT: Anaerobic ammonium-oxidizing (anammox) bacteria have been detected in many marine and freshwater ecosystems. However, little is known about the distribution, diversity, and abundance of anammox bacteria in terrestrial ecosystems. In this study, anammox bacteria were found to be present in various agricultural soils collected from 32 different locations in China. Phylogenetic analysis of the 16S rRNA genes showed "Candidatus Brocadia," "Candidatus Kuenenia," "Candidatus Anammoxoglobus," and "Candidatus Jettenia" in the collected soils, with "Candidatus Brocadia" being the dominant genus. Quantitative PCR showed that the abundance of anammox bacteria ranged from 6.38 × 10(4) ± 0.42 × 10(4) to 3.69 × 10(6) ± 0.25 × 10(6) copies per gram of dry weight. Different levels of diversity, compositio

SUBMITTER: Shen LD 

PROVIDER: S-EPMC3811364 | biostudies-literature | 2013 Oct

REPOSITORIES: biostudies-literature