| monitoring and characterization of magnaporthe grisea isolates with decreased sensitivity to scytalone dehydratase inhibitors. | rice blast fungus isolates were collected in kyushu to investigate resistance to scytalone dehydratase inhibitors of melanin biosynthesis (mbi-d). in 2001, failure of control of rice blast was reported in the saga prefecture, where mbi-ds have been used since 1998. at that time, the distribution of resistant isolates was mainly limited to that area. however, in 2002, resistant isolates were detected in all prefectures of kyushu. dna fingerprinting analysis showed that the mutation causing resist ... | 2004 | 15307669 |