UMR BGPI, INRA-CIRAD-SupAgro, CIRAD TA-A54/K, Campus International de Baillarguet, 34398 Montpellier Cedex 05, France.
Curr Opin Microbiol. 2011 Aug;14(4):483-91. doi: 10.1016/j.mib.2011.07.008. Epub 2011 Jul 23.
Understanding the mechanisms controlling vector-transmission of plant viruses requires integrating information from at least three different viewpoints: virus-vector interactions, plant-vector interactions and virus-plant interactions. While some of these aspects have been covered by past and present investigations, others have been bypassed completely, because of technical bottlenecks or conceptual lacunas. Here, we highlight recent advances and needs in hitherto poorly documented aspects of vector transmission, such as characterization of the vector molecules responsible for initial viral recognition, and the role of vector saliva in inoculation and initial onset of infection in a new plant. We also propose and discuss some novel conceptual and complementary questions that are opening up fascinating new horizons in this field. We explore the possible existence of viral morphs with specific properties that facilitate acquisition by vectors, and discuss the dynamics/genetics of such viral subpopulations, which could differentiate and specialize in different host compartments.
病毒-媒介物相互作用、植物-媒介物相互作用和病毒-植物相互作用。虽然过去和现在的研究已经涵盖了其中的一些方面，但由于技术瓶颈或概念上的空白，其他方面则完全被忽略了。在这里，我们重点介绍了媒介传播中迄今记录甚少的方面的最新进展和需求，例如负责初始病毒识别的媒介分子的特征，以及媒介唾液在新植物接种和初始感染中的作用。我们还提出并讨论了一些新颖的概念和补充问题，这些问题在该领域开辟了迷人的新视野。我们探讨了具有特定性质的病毒形态的可能存在，这些性质有助于媒介物的获取，并讨论了这种病毒亚群的动态/遗传学，它们可以在不同的宿主隔室中分化和专门化。
