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田间调查发现,湖北省长阳县玉米粗缩病发生普遍,白背飞虱大量分布,未见灰飞虱存在。通过症状观察、病毒dsRNA基因组电泳图谱分析、RT-PCR、序列分析等鉴定方法,对湖北长阳玉米粗缩病进行病原鉴定。结果表明,湖北长阳发生的玉米粗缩病是由新的水稻斐济病毒暂定种——南方水稻黑条矮缩病毒(Southern rice black-streaked dwarf virus,SRBSDV)引起。
Field survey found that Changyang County, Hubei Province, corn widespread occurrence of rough, large numbers of whitebacked planthopper distribution, no planthopper exists. Through pathological observation, virus dsRNA genome electrophoresis pattern analysis, RT-PCR, sequence analysis and other identification methods, The results showed that the maize rough plant disease in Changyang of Hubei Province was caused by the southern rice black-streaked dwarf virus (SRBSDV), a tentative planktonic strain of Fiji virus.