Mealybug transmission of Grapevine leafroll viruses: an analysis of virus-vector specificity

Phytopathology
Chi-Wei TsaiRodrigo P P Almeida

Abstract

To understand ecological factors mediating the spread of insect-borne plant pathogens, vector species for these pathogens need to be identified. Grapevine leafroll disease is caused by a complex of phylogenetically related closteroviruses, some of which are transmitted by insect vectors; however, the specificities of these complex virus-vector interactions are poorly understood thus far. Through biological assays and phylogenetic analyses, we studied the role of vector-pathogen specificity in the transmission of several grapevine leafroll-associated viruses (GLRaVs) by their mealybug vectors. Using plants with multiple virus infections, several virus species were screened for vector transmission by the mealybug species Planococcus ficus and Pseudococcus longispinus. We report that two GLRaVs (-4 and -9), for which no vector transmission evidence was available, are mealybug-borne. The analyses performed indicated no evidence of mealybug-GLRaV specificity; for example, different vector species transmitted GLRaV-3 and one vector species, Planococcus ficus, transmitted five GLRaVs. Based on available data, there is no compelling evidence of vector-virus specificity in the mealybug transmission of GLRaVs. However, more studies aimed...Continue Reading

References

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Citations

Feb 23, 2012·Phytopathology·Diego F Quito-AvilaRobert R Martin
Nov 1, 2011·PloS One·Abhineet M SharmaRodrigo P P Almeida
Nov 10, 2011·Journal of Economic Entomology·Chi-Wei TsaiRodrigo P P Almeida
Jan 6, 2012·Environmental Entomology·Kent M DaaneRodrigo P P Almeida
May 15, 2012·Journal of Virological Methods·Jeremy R ThompsonKeith L Perry
Sep 7, 2011·Virus Research·Jeremy R ThompsonKeith L Perry
Aug 6, 2015·Annual Review of Phytopathology·Rayapati A NaiduJohan T Burger
Dec 17, 2011·Journal of Virological Methods·Maher Al RwahnihAdib Rowhani
Aug 25, 2016·Frontiers in Plant Science·Laura M Perilla-Henao, Clare L Casteel
Jun 23, 2016·Journal of Economic Entomology·C M WistromK M Daane
Aug 15, 2018·Virology Journal·Huogen XiaoBaozhong Meng
Feb 20, 2019·Environmental Science and Pollution Research International·Andrea LucchiGiovanni Benelli

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