首页|松针提取液对茶树生长和虫害防治的影响机制

松针提取液对茶树生长和虫害防治的影响机制

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
为探究松针提取液对茶树生长和虫害防治的影响机制,以喷施松针提取液和无菌水的茶树为材料进行比较实验,并进行转录组和代谢组学联合分析,解析其内在机制.结果表明,松针提取液能够促进茶树生长,提高茶树的发芽密度和叶片的叶绿素相对含量,提高茶叶产量,且不降低茶叶的品质.在这一过程中,AP2/ERF转录因子下调表达,乙烯信号途径发挥了重要的负调节作用.茶园喷施松针提取液不影响茶园节肢动物的群落结构,且对螨类和茶小绿叶蝉有一定的防治效果.转录组和代谢组联合分析表明,松针提取液提高茶树抗虫能力可能是由于激活了茶树的多酚类和磷脂类的代谢途径,相应代谢物质的含量显著提高,茶树抗氧化、清除自由基的能力提高,从而提高了茶树的抗逆性.研究结果可为天然植物抗逆性诱导剂的开发利用提供依据.
Influence Mechanisms of Pine Needle Extracts on Tea Plant Growth and Pest Control
In order to explore the effect of pine needle extracts on tea plant growth and pest control,tea trees treated with and without pine needle extracts were used as experiment materials,and the combined transcriptome and metabolome analysis was conducted to analyze the internal mechanism.The results showed that pine needle extracts could promote the growth of tea plants,with the increasing germination density,the relative content of chlorophyll in tea plant leaves,and the yield of tea without reducing the quality of tea.In this process,the expression of AP2/ERF transcription factors was suppressed,and ethylene signaling pathway played an important role of negative regulator.Besides,pine needle extracts treatments did not affect the community structure of arthropods of tea plants,and displayed a certain control effect on mites and tea green leafhoppers.The combined analysis of transcriptome and metabolome showed that the improvement of insect resistance of tea plant might be due to the activation of polyphenol and phospholipid metabolic pathways of tea plants,and the contents of corresponding metabolites were significantly increased.Thus,the antioxidant and free radical scavenging ability of tea plants were improved,so as to enhance the stress resistance of tea plants.In general,the results can provide a basis for the development and utilization of natural plant stress inducers.

pine needle extractsCamellia sinensisethylene signaling pathwaypolyphenolsantioxidantpest managementtranscriptomicsmetabolomicsplant resistance inducers

张曼、黎健龙、周波、陈义勇、农红秋、崔莹莹、刘嘉裕、唐劲驰

展开 >

广东省农业科学院茶叶研究所/广东省茶树资源创新利用重点实验室,广州 510640

松针提取液 茶树 乙烯信号通路 多酚类 抗氧化 虫害管理 转录组学 代谢组学 植物抗性诱导剂

广东省科技计划项目国家现代农业(茶叶)产业技术体系建设专项广东省农业科学院优博项目广东省农业科学院农业优势产业学科团队建设项目

2023B0202010018CARS-19R2022YJ-YB3010202125TD

2024

中国农学通报
中国农学会

中国农学通报

CSTPCD
影响因子：0.891
ISSN：1000-6850
年,卷(期)：2024.40(25)
  • 18