Characterization of nonpathogenic Cadophora gregata, a potential biological control agent, concomitantly isolated from soil infested with Cadophora gregata f. sp. adzukicola, the cause of adzuki bean brown stem rot
Abstract:We collected 555 isolates of Cadophora gregata from adzuki bean field soils in Hokkaido, Japan, from 1997 to 2000. To identify the brown stem rot (BSR) pathogen C. gregata f. sp. adzukicola, we screened these isolates for pathogenicity to adzuki beans. Of the isolates, all of which originated in Tokachi District, Hokkaido, Japan, 23 were avirulent to adzuki bean, soybean, or mung bean. However, polymerase chain reaction (PCR) with specific primers for C. gregata f. sp. adzukicola (BSRA1 and BSRA2) detected the… Show more
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