Exploring the structural changes in nitrogen-fixing microorganisms of rhizosheath during the growth of Stipagrostis pennata in the desert.

ABSTRACT: Rhizosheath is an adaptive feature for the survival of Stipagrostis pennata in desert systems. Although microorganisms play important ecological roles in promoting the nitrogen cycle of rhizosheath, the diversity and function of nitrogen-fixing microorganism communities have not been fully understood. Therefore, the aim of the present study is to explore the nitrogen fixation ability of rhizosheaths and the changes in abundance of nitrogen-fixing microorganisms at different growth periods of S. pennata. We sequenced the nifH gene through sequencing to identify the structure and diversity of nitrogen-fixing microorganisms of S. pennata at different growth periods of rhizosheaths. A total of 1256 operational taxonomic units (OTUs) were identified by nifH sequence and distributed in different

SUBMITTER: Tian Y 

PROVIDER: S-EPMC8047386 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature