Nodulation of the neotropical genus Calliandra by alpha or betaproteobacterial symbionts depends on the biogeographical origins of the host species.

ABSTRACT: The neotropical genus Calliandra is of great importance to ecology and agroforestry, but little is known about its nodulation or its rhizobia. The nodulation of several species from two restricted diversity centres with native/endemic species (Eastern Brazil and North-Central America) and species widespread in South America, as well as their nodule structure and the molecular characterization of their rhizobial symbionts based on phylogeny of the 16S rRNA, recA and nodC gene, is reported herein. Species representative of different regions were grown in Brazilian soil, their nodulation observed, and their symbionts characterized. Calliandra nodules have anatomy that is typical of mimosoid nodules regardless of the microsymbiont type. The rhizobial symbionts differed according to the geograp

SUBMITTER: Zilli JE 

PROVIDER: S-EPMC8578517 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature