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Pierre-Alain van Griethuysen¹, Kelly R Redeker¹, Stuart A MacFarlane²

¹Department of Biology, University of York, Heslington, York, YO1 5DD, UK.

The New phytologist

|February 8, 2024

概括

植物病毒可以通过改变根的气味来操纵土壤线虫. 烟草虫病毒 (TRV) 增加了2-乙烯-1-醇,吸引了线虫载体到受感染的植物中,以更好地传播疾病.

科学领域:

植物病理学植物病理学
生态生态学生态生态学
病毒学病毒学
昆虫学昆虫学是一门学科.

背景情况:

植物挥发物调解植物病毒载体相互作用,但地下机制仍未得到充分探索.
土壤生态和农业受到这些地下相互作用的重大影响.
了解这些相互作用对于管理植物疾病和害虫至关重要.

研究的目的:

研究烟草虫病毒 (TRV) 如何吸引土壤线虫载体到受感染的植物.
为了确定特定的挥发性化合物和病毒基因参与线虫吸引.
为了证明病毒驱动的改变根挥发性排放影响线虫行为.

主要方法:

尼科蒂亚娜本塔米亚纳感染TRV和根生长与未感染植物的比较.
评估线虫对TRV感染植物的吸引力.感染后7天.
确定关键的挥发性化合物和TRV基因的突变,以确定它们在吸引力中的作用.

主要成果:

在感染后7天,TRV感染显著影响了根形态和病毒载量.
感染增加了2-乙烯-1-醇的产生,这是一种挥发性化合物.
尼马的化学反应和2-乙基-1-醇的产生与病毒载量有很强的相关性;突变的TRV菌株减少了吸引力.

结论:

这项研究提供了第一个证据,证明病毒诱导的变化在根的挥发性物质吸引线虫载体.
TRV通过增加2-乙烯-1-醇来操纵线虫的行为,增强载体的吸引力.
这些发现对农业中植物病毒和线虫害的可持续管理有影响.

关键词:

化学生态化学生态学化学反应的化学作用.综合性害虫防治综合性害虫防治植物与害虫的相互作用烟草公牛病毒烟草公牛病毒三多利德 (Trichodorid) 是一种三多利德.病毒载体植物生态学

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