大丽黄萎病与棉花互作：致病机制及棉花抗黄萎病机制,Frontiers in Plant Science

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大丽黄萎病与棉花互作：致病机制及棉花抗黄萎病机制
Frontiers in Plant Science ( IF 4.1 ) Pub Date : 2023-04-21 , DOI: 10.3389/fpls.2023.1174281
Yutao Zhu ₁ , Mei Zhao ₁ , Taotao Li ₁ , Lianzhe Wang ₁ , Chunli Liao ₁ , Dongxiao Liu ₁ , Huamin Zhang ₁ , Yanpeng Zhao ₂ , Lisen Liu ₃ , Xiaoyang Ge ₃ , Bingbing Li ₁

Affiliation

由于总天然纤维的巨大经济价值，棉花在世界上许多国家得到广泛种植。黄萎病，由土传病原体引起黄萎病大丽花, 是导致棉花作物大量减产和纤维质量下降的最具破坏性的疾病。通过基因工程培育抗性棉花品种是防治黄萎病的一种有效、经济、持久的策略。然而，目前种植的棉花品种中抗性基因资源较少，这给通过基因工程育种带来了巨大的挑战和困难。进一步揭示两者之间的分子机制大丽花与棉花的相互作用对于发现与抗病性相关的基因至关重要。在这篇综述中，我们详细阐述了致病机制大丽花以及棉花对黄萎病的抗性机制。大丽花已经进化出复杂的机制来实现棉花的致病性，主要包括五个方面：（1）微菌核的萌发和生长；(2) 感染并成功定植；(3) 对营养缺乏环境的适应和营养物质的竞争；(4) 抑制和操纵棉花免疫反应；(5)快速繁殖和分泌毒素。棉花进化出多种生理生化反应以应对大丽花感染，包括组织结构的改变、抗真菌物质的积累、活性氧 (ROS) 的稳态、Ca 的诱导2+信号、丝裂原活化蛋白激酶 (MAPK) 级联、激素信号和 PAMP/效应器触发的免疫反应 (PTI/ETI)。该综述将为通过基因工程培育抗黄萎病棉花新种质资源提供重要参考。

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Interactions between Verticillium dahliae and cotton: pathogenic mechanism and cotton resistance mechanism to Verticillium wilt

Cotton is widely grown in many countries around the world due to the huge economic value of the total natural fiber. Verticillium wilt, caused by the soil-borne pathogen Verticillium dahliae, is the most devastating disease that led to extensive yield losses and fiber quality reduction in cotton crops. Developing resistant cotton varieties through genetic engineering is an effective, economical, and durable strategy to control Verticillium wilt. However, there are few resistance gene resources in the currently planted cotton varieties, which has brought great challenges and difficulties for breeding through genetic engineering. Further revealing the molecular mechanism between V. dahliae and cotton interaction is crucial to discovering genes related to disease resistance. In this review, we elaborated on the pathogenic mechanism of V. dahliae and the resistance mechanism of cotton to Verticillium wilt. V. dahliae has evolved complex mechanisms to achieve pathogenicity in cotton, mainly including five aspects: (1) germination and growth of microsclerotia; (2) infection and successful colonization; (3) adaptation to the nutrient-deficient environment and competition of nutrients; (4) suppression and manipulation of cotton immune responses; (5) rapid reproduction and secretion of toxins. Cotton has evolved multiple physiological and biochemical responses to cope with V. dahliae infection, including modification of tissue structures, accumulation of antifungal substances, homeostasis of reactive oxygen species (ROS), induction of Ca2+ signaling, the mitogen-activated protein kinase (MAPK) cascades, hormone signaling, and PAMPs/effectors-triggered immune response (PTI/ETI). This review will provide an important reference for the breeding of new cotton germplasm resistant to Verticillium wilt through genetic engineering.

更新日期：2023-04-21

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