Rho2 参与了 Fusarium oxysporum 的发育,应激反应和致病性
Jia Liu1, Chengsong Wang1, Lei Kong1
1Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China.
World journal of microbiology & biotechnology
|August 7, 2023
概括
这项研究揭示了Rho2 GTPase对于Fusarium oxysporum生长,应激反应和Panax notoginseng中的致病性至关重要. 删除Rho2会影响子发芽,并增加Mpk1的酸化.
科学领域:
- 菌类学 菌类学是指菌类学.
- 植物病理学 植物病理学
- 分子生物学分子生物学
背景情况:
- 罗GTPases是细胞过程的重要调节者.
- 它们在线状真菌中的特定作用,比如Fusarium oxysporum,仍然在很大程度上没有特征.
- Fusarium oxysporum是影响Panax notoginseng的一种重要病原体.
研究的目的:
- 为了阐明Rho2 GTPase在Fusarium oxysporum中的功能.
- 研究Rho2删除对真菌生长,耐压力和致病性的影响.
- 为了识别由Rho2调节的基因.
主要方法:
- 一个△rho2突变的构造和表型分析.
- 对应力耐受性的评估 (奥斯摩斯,细胞膜,细胞壁,金属,高温).
- 转录组测序以识别差异表达的基因.
主要成果:
- △rho2突变体在细胞壁压力和高温下表现出减少的生长.
- 在△rho2突变体中,子发芽和对Panax notoginseng的致病性显著下降.
- 删除Rho2导致Mpk1酸化增加,并改变了数千个基因的表达.
结论:
- 在Fusarium oxysporum对细胞壁应激和高温的反应中,Rho2 GTPase起着至关重要的作用.
- Rho2对于子的正常发芽和病原性至关重要.
- 鉴定到的基因表达变化为Rho2介导的调节网络提供了洞察力.
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