对Hemerocallis citrina Baroni暴露于Thrips palmi养压力的生理反应和转录组分析
Zhuonan Sun1, Hui Shen2, Zhongtao Chen2
1College of Plant Protection, Shanxi Agricultural University, Taigu, China.
Frontiers in plant science
|May 29, 2024
概括
日植物通过增加二次代谢物和防御酶来激活对三的防御机制. 这项研究揭示了参与白日的关键分子通路和基因.
科学领域:
- 植物科学 植物科学
- 昆虫学 昆虫学是一门学科.
- 生物化学 生物化学
背景情况:
- 树对日 (Hemerocallis citrina) 的产量和质量构成重大威胁.
- 白日具有与生俱来的防御机制,可以抵御昆虫的害虫.
- 了解这些防御对于开发可持续的害虫管理策略至关重要.
研究的目的:
- 为了研究白日对Thrips palmi养的生物化学和分子反应.
- 为了确定关键的基因和途径参与诱导的全身性耐药性在白日.
主要方法:
- 在日叶中分析可溶糖,氨基酸和自由脂肪酸含量.
- 量化二次代谢物 (,黄,) 和防御酶活动 (POD,PAL,PPO,PI) 的量化.
- RNA测序以识别差异表达基因 (DEG) 和权重基因联合表达网络分析 (WGCNA).
主要成果:
- 食食物显著减少可溶糖,氨基酸和自由脂肪酸,同时增加二次代谢物和防御酶活动.
- 确定了1894个DEG,它们与二次代谢物合成,激素信号传递 (JA,SA) 和昆虫耐药性相关的途径进行丰富.
- 关键基因,包括MYB样DNA结合域和NPR1,被确定为日的防御反应的关键调节者.
结论:
- 戴利利通过增强二次代谢物的生物合成和防御激素通路的激活,表现出诱导的系统性耐药性.
- 氨酸代谢和蛋白酶抑制剂在植物对三菌的防御中起着重要的作用.
- 已识别的枢纽基因为繁殖耐药日品种提供了潜在的点.
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