Bacterial rRNA genes associated with soil suppressiveness against the plant-parasitic nematode Heterodera schachtii.

ABSTRACT: The goal of this study was to identify bacteria involved in soil suppressiveness against the plant-parasitic nematode Heterodera schachtii. Since H. schachtii cysts isolated from the suppressive soil can transfer this beneficial property to nonsuppressive soils, analysis of the cyst-associated microorganisms should lead to the identification of the causal organisms. Our experimental approach was to identify bacterial rRNA genes (rDNA) associated with H. schachtii cysts obtained from soil mixtures with various levels of suppressiveness. We hypothesized that we would be able to identify bacteria involved in the suppressiveness by correlating population shifts with differing levels of suppressiveness. Soil treatments containing different amounts of suppressive and fumigation-induced nonsuppre

SUBMITTER: Yin B 

PROVIDER: S-EPMC150066 | biostudies-literature | 2003 Mar

REPOSITORIES: biostudies-literature