CAJ | 학술논문

以云南灰飞虱(Laodelphax striatellus)为介体昆虫,以4个水稻品种为寄主,通过人工接种对采自云南、江苏、河南、山东、安徽等省的水稻条纹病毒(Rice stripe virus, RSV)23个分离物进行传毒试验.致病性评价结果表明,23个分离物可划分为5个等级,即强致病型、次强致病型、中致病型、弱致病型、极弱致病型.致病性分化表现在地理差异、毒株差异及水稻品种差异三方面.不同分离物在寄主发病率、发病时间、症状表现以及对灰飞虱传毒效率等方面都存在差异.
이운남회비슬(Laodelphax striatellus)위개체곤충,이4개수도품충위기주,통과인공접충대채자운남、강소、하남、산동、안휘등성적수도조문병독(Rice stripe virus, RSV)23개분리물진행전독시험.치병성평개결과표명,23개분리물가화분위5개등급,즉강치병형、차강치병형、중치병형、약치병형、겁약치병형.치병성분화표현재지리차이、독주차이급수도품충차이삼방면.불동분리물재기주발병솔、발병시간、증상표현이급대회비슬전독효솔등방면도존재차이.
Twenty-three isolates of Rice stripe virus (RSV) from Yunnan, Jiangsu, Shandong, Henan, Anhui were inoculated to four rice varieties by landelphax striatellus. According to the evaluations of pathogenicity, the isolates could be divided into five grades, namely strong virus (sv), semi-strong virus (ss), middle strong virus (ms), weak virus (wv) and least weak virus (lw). Pathogenicity differentiation was shown to correlate with geographic distribution, strain differences and rice varieties. There were differences among isolates in the morbidity, time to exhibit disease, symptom and influences to landelphax striatellus′s transmission.