拉帕素信号通路的目标调节了植物的发育,阿弗拉托克辛的生物合成和Aspergillus flavus的病原性
Guoqi Li1, Xiaohong Cao1, Elisabeth Tumukunde1
1State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Key Laboratory of Pathogenic, Fungi and Mycotoxins of Fujian Province, School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China.
这项研究破译了阿斯伯吉勒斯黄菌中拉帕素 (TOR) 途径的标,揭示了像TORA和Sch9激酶这样的关键调节者. 这些成分控制了关键的过程,包括亚拉托克辛生物合成和应激反应.
科学领域:
- 分子生物学分子生物学
- 菌类学 菌类学是指菌类学.
- 生物化学 生物化学
背景情况:
- 拉巴胺素 (TOR) 信号通路的目标对真核细胞功能至关重要.
- 在 *Aspergillus flavus*,一个重要的真菌病原体中,TOR 途径的作用尚不清楚.
- 了解这种途径对于控制亚毒素生产和真菌生长至关重要.
研究的目的:
- 综合分析 *Aspergillus flavus* 中的TOR信号通路.
- 识别和描述涉及TOR通路的关键基因和蛋白质.
- 阐明由TOR通路调节的亚拉托克辛生物合成的基础分子机制.
主要方法:
- 在A. flavus*中识别和表征9个编码TOR通路组件的基因.
- 对FKBP3,TorA激酶,Sch9激酶,TapA,TipA,SitA,Ppg1和Nem1/Spo7复合物的作用进行分析.
- 研究这些成分对亚毒素产生,应激反应和致病性的影响.
主要成果:
- FKBP3及其化与阿弗拉托克辛的产生和对拉帕米辛的耐药性有关.
- 托拉基因酶调节生长,化,亚拉托克辛生物合成和应激反应.
- 施9激酶,TapA,TipA,SitA,Ppg1和Nem1/Spo7复合体是下游效应体,调节亚毒素合成,应激反应,脂质滴生物发生和致病性.
结论:
- 这项研究为*A. flavus*中TOR信号通路的调节网络提供了重要的见解.
- 包括TOR和Sch9激酶在内的TOR途径的关键组成部分对于亚拉托克辛生物合成至关重要.
- 在A. flavus中,TOR通路起着多方面的作用,影响生长,发育和致病性.
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