Diversity of rhizobia, symbiotic effectiveness, and potential of inoculation in Acacia mearnsii seedling production.

ABSTRACT: Black wattle (Acacia mearnsii) is a forest species of significant economic importance in southern Brazil; as a legume, it forms symbiotic associations with rhizobia, fixing atmospheric nitrogen. Nonetheless, little is known about native rhizobia in soils where the species is cultivated. Therefore, this study aimed to evaluate the diversity and symbiotic efficiency of rhizobia nodulating A. mearnsii in commercial planting areas and validate the efficiency of a potential strain in promoting seedling development. To this end, nodules were collected from four A. mearnsii commercial plantations located in Rio Grande do Sul State, southern Brazil. A total of 80 rhizobia isolates were obtained from black wattle nodules, and thirteen clusters were obtained by rep-PCR. Higher genetic diversity was

SUBMITTER: de Sao Jose JFB 

PROVIDER: S-EPMC9944175 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature