在硬小麦中,Rhopalosiphum padi (鸟桃-麦虫) 引发的日间节律
Yoshiahu Goldstein1, Jinlong Han2, Daniel Kunk2,3
1French Associates Institute for Agriculture and Biotechnology of Drylands, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Midreshet Ben Gurion, 8499000, Israel. goldyosh@post.bgu.ac.il.
BMC plant biology
|April 11, 2025
概括
虫感染显著扰乱小麦的自然日间节律,改变基因表达和代谢活动. 这项研究揭示了昆虫攻击如何影响植物分子循环,影响生长和防御机制.
科学领域:
- 植物科学 植物科学
- 分子生物学分子生物学
- 昆虫学 昆虫学是一门学科.
背景情况:
- 小麦是一个关键的全球作物,易受草食动物损害产量损失的影响.
- 虫侵袭对植物白天节律的影响仍然不太清楚.
- 了解这些干扰是提高作物弹性的关键.
研究的目的:
- 为了研究小麦在虫感染后白天节律的分子变化.
- 识别受昆虫攻击影响的特定基因和代谢途径.
- 在分子层面阐明小麦和虫之间的复杂相互作用.
主要方法:
- 在四平状小麦品种Svevo.上利用时间序列转录和代谢学.
- 分析了受控制的基因表达模式和虫感染的条件.
- 在感染期间检查的节律性代谢物组成变化.
主要成果:
- 虫感染改变了大约25%的小麦转录组的白天节律.
- 超过5000个基因失去了节律性,而类似的数量获得了节律性,与防御相关的基因显示丰富.
- 核心时钟基因保持了节律性,但所有节律基因中约60%的节律性被破坏;单类获得了节律性活动,而糖类保留了它.
结论:
- 昆虫的入侵严重扰乱了植物的白天循环,影响了分子节律.
- 这些干扰影响了植物的生长,发育和防御反应.
- 这些发现提高了对植物-昆虫相互作用及其分子基础的理解.
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