Effect of Flooding and the nosZ Gene in Bradyrhizobia on Bradyrhizobial Community Structure in the Soil.

ABSTRACT: We investigated the effects of the water status (flooded or non-flooded) and presence of the nosZ gene in bradyrhizobia on the bradyrhizobial community structure in a factorial experiment that examined three temperature levels (20°C, 25°C, and 30°C) and two soil types (andosol and gray lowland soil) using microcosm incubations. All microcosms were inoculated with Bradyrhizobium japonicum USDA6^T, B. japonicum USDA123, and B. elkanii USDA76^T, which do not possess the nosZ gene, and then half received B. diazoefficiens USDA110^Twt (wt for the wild-type) and the other half received B. diazoefficiens USDA110ΔnosZ. USDA110^Twt possesses the nosZ gene, which encodes N₂O reductase; 110ΔnosZ, a mutant variant, does not. Changes in the community s

SUBMITTER: Saeki Y 

PROVIDER: S-EPMC5478539 | biostudies-literature | 2017 Jun

REPOSITORIES: biostudies-literature