Evaluation of major Japanese rice cultivars for resistance to bacterial grain rot caused by Burkholderia glumae and identification of standard cultivars for resistance.

ABSTRACT: Bacterial grain rot (BGR), caused by the bacterial pathogen Burkholderia glumae, is one of the most destructive rice (Oryza sativa) diseases in Japan; however, there are no BGR-resistant cultivars for use in Japan. We previously developed a cut-panicle inoculation method to assess the levels of BGR resistance in the World Rice Collection (WRC). Here, we evaluated major Japanese cultivars for BGR resistance and found that none showed "strong" or "medium to strong" resistance; most were categorized as "medium to weak". On the basis of the screening results, standard cultivars for BGR resistance were selected according to resistance level and relative maturity. Our results indicate that it is necessary to introduce quantitative trait loci (QTLs) from indica or tropical

SUBMITTER: Mizobuchi R 

PROVIDER: S-EPMC6198898 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature