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Suprathreshold Water Spray Stimulus Enhances Plant Defenses against Biotic Stresses in Tomato
Journal of Agricultural and Food Chemistry ( IF 5.7 ) Pub Date : 2024-09-09 , DOI: 10.1021/acs.jafc.4c05131 Le Liu 1 , Ze Sun 1 , Rui Tang 1 , Jin-Hua Shi 1 , Li-Qiong Zhang 1 , Hazem Abdelnabby 2 , Aijun Zhang 3 , Man-Qun Wang 1
Journal of Agricultural and Food Chemistry ( IF 5.7 ) Pub Date : 2024-09-09 , DOI: 10.1021/acs.jafc.4c05131 Le Liu 1 , Ze Sun 1 , Rui Tang 1 , Jin-Hua Shi 1 , Li-Qiong Zhang 1 , Hazem Abdelnabby 2 , Aijun Zhang 3 , Man-Qun Wang 1
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Mechanical stimuli can affect plant growth, development, and defenses. The role of water spray stimulation, as a prevalent mechanical stimulus in the environment, in crop growth and defense cannot be overlooked. In this study, the effects of water spray on tomato plant growth and defense against the chewing herbivore Helicoverpa armigera and necrotrophic fungus Botrytis cinerea were investigated. Suprathreshold water spray stimulus (LS) was found to enhance tomato plant defenses against pests and pathogens while concurrently modifying plant architecture. The results of the phytohormone and chemical metabolite analysis revealed that LS improved the plant defense response via jasmonic acid (JA) signaling. LS significantly elevated the level of a pivotal defensive metabolite, chlorogenic acid, and reduced the emissions of volatile organic compounds (VOCs) from tomato plants, thereby defending against pest and pathogen attacks. The most obvious finding to emerge from this study is that LS enhances tomato plant defenses against biotic stresses, which will pave the way for further work on the application of mechanical stimuli for pest management.
中文翻译：
超阈值喷水刺激增强植物对番茄生物胁迫的防御能力
机械刺激会影响植物的生长、发育和防御。喷水刺激作为环境中普遍存在的机械刺激，在作物生长和防御中的作用不容忽视。在这项研究中，研究了喷水对番茄植株生长和防御咀嚼食草动物棉铃虫和坏死营养真菌灰葡萄孢的影响。研究发现，超阈值喷水刺激（LS）可以增强番茄植株对害虫和病原体的防御能力，同时改变植株结构。植物激素和化学代谢物分析结果表明，LS 通过茉莉酸 (JA) 信号传导改善植物防御反应。 LS 显着提高了关键防御代谢物绿原酸的水平，并减少了番茄植株挥发性有机化合物 (VOC) 的排放，从而抵御害虫和病原体的侵袭。这项研究最明显的发现是，LS 增强了番茄植株对生物胁迫的防御能力，这将为进一步应用机械刺激进行害虫防治铺平道路。
更新日期：2024-09-09
中文翻译：
超阈值喷水刺激增强植物对番茄生物胁迫的防御能力
机械刺激会影响植物的生长、发育和防御。喷水刺激作为环境中普遍存在的机械刺激，在作物生长和防御中的作用不容忽视。在这项研究中，研究了喷水对番茄植株生长和防御咀嚼食草动物棉铃虫和坏死营养真菌灰葡萄孢的影响。研究发现，超阈值喷水刺激（LS）可以增强番茄植株对害虫和病原体的防御能力，同时改变植株结构。植物激素和化学代谢物分析结果表明，LS 通过茉莉酸 (JA) 信号传导改善植物防御反应。 LS 显着提高了关键防御代谢物绿原酸的水平，并减少了番茄植株挥发性有机化合物 (VOC) 的排放，从而抵御害虫和病原体的侵袭。这项研究最明显的发现是，LS 增强了番茄植株对生物胁迫的防御能力，这将为进一步应用机械刺激进行害虫防治铺平道路。
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