Identification and biological characterization of the root rot pathogen of wheat in Xinjiang caused by Bipolaris sorokiniana
[Objective]To clarify the species and biological characteristics of root rot pathogens of wheat in Xinjiang,and to provide a scientific basis for the development of effective prevention and control measures.[Methods]This study used tissue isolation method to isolate and culture the pathogens in Xinjiang,selected representative strains from different regions for pathogenicity detection,combined with morphological and mo-lecular means to identify pathogens species,and used the growth rate method to determine their main biological characteristics.[Results]The representative strains(KS1-3,YL26,TC30 and ML26)were pathogenic;the pathogens were identified as Bipolaris sorokiniana(Sacc.)Shoemaker.The PDA medium was the most suit-able for mycelial growth,and it can grew at5-35℃and pH4-10.The optimum temperature was30℃,the optimum pH was 7,it was not sensitive to light,the best carbon sources were soluble starch and sucrose,and the best nitrogen sources were beef extract and peptone.[Conclusion]The pathogens of wheat root rot in Xin-jiang are Bipolaris sorokiniana,and its main biological characteristies are similar to most fungi,preferring tem-perature and light.
国家科技期刊平台
NSTL
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