Both Alpha- and Beta-Rhizobia Occupy the Root Nodules of Vachellia karroo in South Africa.

ABSTRACT: Vachellia karroo (formerly Acacia karroo) is a wide-spread legume species indigenous to southern Africa. Little is known regarding the identity or diversity of rhizobia that associate with this plant in its native range in South Africa. The aims of this study were therefore: (i) to gather a collection of rhizobia associated with V. karroo from a wide range of geographic locations and biomes; (ii) to identify the isolates and infer their evolutionary relationships with known rhizobia; (iii) to confirm their nodulation abilities by using them in inoculation assays to induce nodules under glasshouse conditions. To achieve these aims, soil samples were collected from 28 locations in seven biomes throughout South Africa, which were then used to grow V. karroo seedlin

SUBMITTER: Beukes CW 

PROVIDER: S-EPMC6558075 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature