Poor Competitiveness of Bradyrhizobium in Pigeon Pea Root Colonization in Indian Soils.

ABSTRACT: Pigeon pea, a legume crop native to India, is the primary source of protein for more than a billion people in developing countries. The plant can form symbioses with N₂-fixing bacteria; however, reports of poor crop nodulation in agricultural soils abound. We report here a study of the bacterial community associated with pigeon pea, with a special focus on the symbiont population in different soils and vegetative and non-vegetative plant growth. Location with respect to the plant roots was determined to be the main factor controlling the bacterial community, followed by developmental stage and soil type. Plant genotype plays only a minor role. Pigeon pea roots have a reduced microbial diversity compared to the surrounding soil and select for Proteobacteria, especially for

SUBMITTER: Chalasani D 

PROVIDER: S-EPMC8406239 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature