Davis Thomas Wilbur, Thompson Andrew Nasa
Doctor of Plant Health, University of Nebraska - Lincoln, Lincoln, NE, 68508, United States.
Resource Utilization and Plant Protection, China Agricultural University, 17 Qinghua Donglu, Beijing, 100083, China.
Mol Hortic. 2024 Nov 5;4(1):36. doi: 10.1186/s43897-024-00112-4.
Okra yellow vein mosaic disease (OYVMD) is a major constraint to okra production globally. It is caused by several distinct begomoviruses, including okra yellow vein mosaic virus (OYVMV), that are transmitted by the whitefly. This study synthesizes current knowledge on the complex interactions between whiteflies, begomoviruses, and okra plants that enable viral spread and cause OYVMD. The acquisition and transmission cycle involves specific processes including virion ingestion during phloem-feeding, endocytosis and passage across insect tissues, secretion in saliva, and inoculation into plants. Molecular compatibilities between vector coat proteins, midgut proteins, and plant factors modulate virus replication and movement through barrier tissues. Abiotic stresses and host traits also impact whitefly behavior and virus epidemiology. Begomoviruses such as OYVMV have spread globally wherever whitefly vectors and susceptible okra varieties occur. Integrated management of the tripartite pathosystem that incorporates host resistance, cultural tactics, and biological control is required to mitigate the transmission of begomoviruses and OYVMD impact. Finally, resolving vector-virus interactions and developing interference strategies will help contribute to strengthening okra germplasm resistance which can support sustainable food production.
秋葵黄脉花叶病（OYVMD）是全球秋葵生产的主要限制因素。它由几种不同的双生病毒引起，包括秋葵黄脉花叶病毒（OYVMV），这些病毒由粉虱传播。本研究综合了当前关于粉虱、双生病毒和秋葵植物之间复杂相互作用的知识，这些相互作用使得病毒得以传播并导致秋葵黄脉花叶病。获取和传播周期涉及特定过程，包括在韧皮部取食期间摄取病毒粒子、内吞作用以及穿过昆虫组织、在唾液中分泌，以及接种到植物中。载体外壳蛋白、中肠蛋白和植物因子之间的分子相容性调节病毒在屏障组织中的复制和移动。非生物胁迫和宿主特性也会影响粉虱行为和病毒流行病学。像秋葵黄脉花叶病毒这样的双生病毒已经在有粉虱载体和易感秋葵品种的任何地方全球传播。需要综合管理包括宿主抗性、栽培策略和生物防治在内的三方病理系统，以减轻双生病毒的传播和秋葵黄脉花叶病的影响。最后，解决载体 - 病毒相互作用并制定干扰策略将有助于增强秋葵种质抗性，从而支持可持续粮食生产。
