PDF(Pubmed)
Abstract：
Global crop production is severely affected by environmental factors such as drought, salinity, cold, flood etc. Among these stresses, drought is one of the major abiotic stresses reducing crop productivity. It is expected that drought conditions will further increase because of the increasing global temperature. In general, viruses are seen as a pathogen affecting the crop productivity. However, several researches are showing that viruses can induce drought tolerance in plants. This review explores the mechanisms underlying the interplay between viral infections and the drought response mechanisms in plants. We tried to address the molecular pathways and physiological changes induced by viruses that confer drought tolerance, including alterations in hormone signaling, antioxidant defenses, scavenging the reactive oxygen species, role of RNA silencing and miRNA pathway, change in the expression of several genes including heat shock proteins, cellulose synthase etc. Furthermore, we discuss various viruses implicated in providing drought tolerance and examine the range of plant species exhibiting this phenomenon. By applying current knowledge and identifying gaps in understanding, this review aims to provide valuable insights into the complex dynamics of virus-induced drought tolerance in plants, paving the way for future research directions and practical applications in sustainable agriculture.
摘要：
全球农作物生产受到干旱等环境因素的严重影响,盐度,冷,洪水等。在这些压力中，干旱是降低作物生产力的主要非生物胁迫之一。预计由于全球温度升高，干旱条件将进一步增加。总的来说,病毒被视为影响作物生产力的病原体。然而,一些研究表明，病毒可以诱导植物的耐旱性。这篇综述探讨了病毒感染与植物干旱响应机制之间相互作用的潜在机制。我们试图解决赋予耐旱性的病毒诱导的分子途径和生理变化，包括激素信号的改变，抗氧化防御,清除活性氧，RNA沉默和miRNA通路的作用，包括热休克蛋白在内的几种基因表达的变化，纤维素合成酶等.此外，我们讨论了与提供耐旱性有关的各种病毒，并检查了表现出这种现象的植物物种的范围。通过应用当前知识并识别理解方面的差距，这篇综述旨在为病毒诱导的植物耐旱性的复杂动态提供有价值的见解，为未来可持续农业的研究方向和实际应用铺平了道路。
