<紀要論文>
A Qualitative Baiting Technique for Selective Isolation and DNA Diagnosis of Rhizoctonia spp,Causal AGents of Rice Sheat Diseeases,from Soil

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概要 A baiting technique was evolved for selective isolation and DNA diagnosis of casual agents of rice sheath diseases by Rhizoctonia spp. From artifically inoculated and naturally infested soils using el...even plant stem segments and selective medium containing benomyl and metalaxyl. Rice, mat rush and wheat stem segments soaked in metalaxyl at 50μg/ml were successfully used to isolate R. solani AG 1, R. solani AG 2, R. oryzae-sativae and R. fumigate from artificially infested soils. Moreover, rice and wheat system segments soused in metalaxyl at 100μg/ml were successfully used to extract genomic DNA derived from all Rhizoctonia spp. Metalaxyl untreated stems were colonized in significantly higher numbers and contained in significantly higher concentration of DNA of these Rhizoctonia isolates than untreated stems. Untreated stems were also colonized isolates and extracted DNA derived from other common soil-inhabiting fungi.続きを見る

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登録日 2009.04.22
更新日 2015.11.06