Successional Trajectories of Rhizosphere Bacterial Communities over Consecutive Seasons.

ABSTRACT:

Unlabelled

It is well known that rhizosphere microbiomes differ from those of surrounding soil, and yet we know little about how these root-associated microbial communities change through the growing season and between seasons. We analyzed the response of soil bacteria to roots of the common annual grass Avena fatua over two growing seasons using high-throughput sequencing of 16S rRNA genes. Over the two periods of growth, the rhizosphere bacterial communities followed consistent successional patterns as plants grew, although the starting communities were distinct. Succession in the rhizosphere was characterized by a significant decrease in both taxonomic and phylogenetic diversity relative to background soil communities, driven by reductions in both richness and evenness of the ba

SUBMITTER: Shi S 

PROVIDER: S-EPMC4526712 | biostudies-literature | 2015 Aug

REPOSITORIES: biostudies-literature