No Evidence of Transmission of Grapevine Leafroll-Associated Viruses by Phylloxera ( Daktulosphaira Vitifoliae )
European journal of plant pathology(2016)
摘要
Grapevine leafroll disease is associated with several species of phloem-limited grapevine leafroll-associated viruses (GLRaV), some of which are transmitted by mealybugs and scale insects. The grape phylloxera, Daktulosphaira vitifoliae (Fitch) Biotype A (Hemiptera: Phylloxeridae), is a common vineyard pest that feeds on the phloem of vine roots. There is concern that these insects may transmit one or more GLRaV species, particularly GLRaV-2, a species in the genus Closterovirus . A field survey was performed in vineyards with a high incidence of grapevine leafroll disease and D. vitifoliae was assessed for acquisition of GLRaV. In greenhouse experiments, the ability of D. vitifoliae to transmit GLRaV from infected root sections or vines to co-planted virus-free recipient vines was tested. There were no GLRaV-positive D. vitifoliae in the field survey, nor did D. vitifoliae transmit GLRaV-1, −2, −3, or -4LV in greenhouse transmission experiments. Some insects tested positive for GLRaV after feeding on infected source vines in the greenhouse, however there was no evidence of virus transmission to healthy plants. These findings, in combination with the sedentary behaviour of the soil biotype of D. vitifoliae , make it unlikely that D. vitifoliae is a vector of any GLRaV.
更多查看译文
关键词
Closteroviridae,Grapevine leafroll-associated virus,Grapevine leafroll disease,Daktulosphaira vitifoliae,Phylloxera,Vector
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要