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比较转录学揭示了致病原体特异的mTOR路径调节在感染昆虫病原菌的Monochamus alternatus中.

Haoran Guan1, Jinghong He1,2, Chuanyu Zhang1

  • 1Basic Forestry and Proteomics Research Center, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, School of Future Technology, Fujian Agriculture and Forestry University, Fuzhou 350002, China.

Insects
|October 28, 2025
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概括
此摘要是机器生成的。

控制松病需要了解真菌如何感染松树. 针对mTOR途径可以增强Beauveria bassiana的作用.

关键词:
贝奥维里亚巴西安纳 (Beauveria bassiana) 是一个植物.甲二氧化 (Metarhizium anisopliae) 是一种含有甲的物质.这种动物是Monochamus alternatus.双重RNA-seqq 的情况.在 mTOR 路径上.松病是松病的一种疾病.

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科学领域:

  • 昆虫学 昆虫学是一门学科.
  • 植物病理学 植物病理学
  • 分子生物学分子生物学

背景情况:

  • 由Monochamus alternatus (JPS) 传播的松病 (PWD) 威胁着全球松树林.
  • 昆虫病原菌Beauveria bassiana (Bb) 和Metarhizium anisopliae (Ma) 是环保的生物控制剂,但由于对宿主-病原体相互作用的理解有限,它们在现场有效性方面面临挑战.

研究的目的:

  • 为了比较JPS对Bb和Ma感染的转录反应在感染后48小时.
  • 阐明PWD生物控制中宿主-病原体特异性背后的分子机制.
  • 确定提高真菌生物控制剂疗效的潜在目标.

主要方法:

  • 双RNA测序用于分析JPS和感染真菌中的基因表达.
  • 生物信息分析确定了差异表达的基因和途径.
  • 在JPS中,功能验证涉及使用化学抑制剂和RNA干扰 (RNAi) 的mTOR抑制.

主要成果:

  • Bb感染诱导了自和调节了JPS碳水化合物代谢,导致组织降解.
  • 马氏体感染利用宿主代谢途径进行生物合成,并触发了更强的JPS免疫反应.
  • 确定了mTOR信号通路作为差异性宿主反应的关键调节器.
  • mTOR抑制选择性地提高了JPS中Bb诱导的死亡率,但没有影响马氏病毒性.

结论:

  • 由Bb和Ma采用的不同的感染策略导致JPS的特定宿主反应.
  • mTOR信号通路在调节JPS对虫病原菌的易感性方面发挥着至关重要的作用.
  • 针对mTOR是一个有前途的策略,可以提高Bb作为PWD生物控制剂的现场性能.