Symbiotic N-Fixing Bacteria in the Root and Leaf of Typical Alpine Grassland Plants.

ABSTRACT: Alpine plants in nitrogen-deficient environments can acquire nitrogen by associating with endophytic nitrogen-fixing microorganisms that inhabit their roots and leaves to form symbiotic relationships. However, research is limited on nitrogen-fixing bacterial communities in the roots and leaves of alpine grassland plants, especially regarding the differences between various plant parts. In this study, we compared the root and leaf bacterial communities of four alpine plant families (Asteraceae, Leguminosae, Poaceae, and Rosaceae) in the alpine meadow ecosystem of Naqu, Tibet, using culture-based methods, 16S rRNA, and nifH gene pyrosequencing. The results showed greater bacterial diversity in the root compared to the leaf, and Fabaceae plants harbored a higher abundance of nitrogen-fixing b

SUBMITTER: Wang H 

PROVIDER: S-EPMC12644197 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature