Rice root-associated bacteria: insights into community structures across 10 cultivars.

ABSTRACT: In this study, the effects of plant genotype, soil type and nutrient use efficiency on the composition of different bacterial communities associated with rice roots were investigated. Thus, total bacteria, Alpha- and Betaproteobacteria, Pseudomonas and Actinobacteria were studied using PCR, followed by denaturing gradient gel electrophoresis (PCR-DGGE). Rice genotype determined, to a large extent, the composition of the different bacterial communities across cultivars. Several cultivars belonging to Oryza sativa ssp. indica tended to select similar bacterial communities, whereas those belonging to subspecies japonica and aromatica selected ones with divergent community structures. An effect of soil type was pronounced for the Actinobacteria communities, while a small effect of 'improved' a

SUBMITTER: Hardoim PR 

PROVIDER: S-EPMC4339037 | biostudies-literature | 2011 Jul

REPOSITORIES: biostudies-literature