The Study on the Physiological Race Type and Biological Characteristics of Phytophthora capsici Collected from Different Regions
In order to confirm the strain type and physiological race type of the pathogen causing Pepper blight and being collected from different regions,we utilized the morphological and molecular methods to identify the seven strains which were collected from Guangdong,Shanxi and Inner Mongolia as Phytophthora capsici Leonian. Through the comparison of biological characteristics of the seven strains from different regions,we found there were signifi-cant differences in colonial morphology,mycelial growth rate and sporulation ability. Through a set of the interna-tional differential hosts,we identified physiological race type of the seven strains,P1 which was from Guangdong be-longed to Race 2,P2 to P7 which were collected from Shanxi and Inner Mongolia all belonged to Race 3. At pres-ent,there is no report of the physiological race type of P. capsici in Shanxi and Inner Mongolia,our research′s results confirmed that the physiological race type of P. capsici in these two regions is Race 3. This results not only filled the vacancy in the research field of P. capsici,it would also lay a solid foundation for the resistance breeding against Pepper blight in the future.
国家科技期刊平台
NSTL
万方数据
维普
