Thrips Transmission Mechanisms of Tospoviruses

Abstract

Tospoviruses are viruses in the genus Tospovirus which belong to the family Bunyaviridae. Tospoviruses are transmitted in a persistent manner by thrips belonging to the family Thripidae of the order Thysanoptera. Thrips-transmitted tospoviruses cause severe yield losses to several economically important crops worldwide. The complex and specific interplay between thrips, tospoviruses, and plant hosts leads to outbreaks of crop disease epidemics. In this review, we focus on the biological processes and interactions involved in the acquisition and transmission of tospoviruses by their thrips vectors. Here, the mechanism governing tospovirus entry into vector, the role of viral membrane glycoproteins in virus acquisition, replication, and movement through thrips were discussed.

Keywords

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Tospovirüslerin Tripsler İle Taşınma Mekanizmaları

Öz

Tospovirüsler, Bunyaviridae familyasında bitkilerde enfeksiyon yapan tek virüs grubu olan Tospovirus cinsi içerisinde yer almaktadırlar. Bu familyada yer alan diğer 4 virüs cinsi (Bunyavirus, Phylebovirus, Nairovirus, Hantavirus) hayvanlarda enfeksiyon yaparken, sadece tospovirusler bitkilerde enfeksiyon gerçekleştirmektedir. Tospovirüsler, Thysanoptera takımı Thripidae familyası içerisinde yer alan trips türleri ile persistent olarak taşınmaktadır. Tripsler ile taşınan tospovirüsler, Dünya çapında ekonomik öneme sahip birçok bitki türünde önemli verim kayıplarına yol açmaktadır. Tospovirus, trips ve konukçu bitki arasındaki spesifik ve kompleks ilişkiler, tospovirüslerin neden olduğu hastalıkların epidemi yapmasına neden olabilmektedir. Bu derleme makalesinde,  tospovirüslerin tripsler tarafından kazanılması ve taşınması sırasında gerçekleşen biyolojik olaylar ve interaksiyonlar ele alınmış, vektör bünyesine virüsün giriş mekanizması ve virüsün trips tarafından kazanılması, replikasyonu ve taşınması sırasında viral membran glikoproteinlerinin rolleri hakkında bilgiler yer almıştır.

Anahtar Kelimeler

• Tospovirüs, Trips, Taşınma, Vektör, Glikoprotein

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