传感器蛋白VdSLN1通过Verticillium dahliae中的MAPK通路参与调节黑色素生物合成和致病性
XiaYu Wang1, JunJiao Li1, XiaoBin Ji1
1Team of Crop Verticillium wilt, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
Fungal genetics and biology : FG & B
|January 9, 2025
概括
在Verticillium dahliae中覆盖膜的传感器蛋白VdSLN1,虽然不是必不可少的,但有助于病原体的毒性. 它调节细胞壁透和黑色素的产生,受VdSho1和VdMsb2.2的影响.
科学领域:
- 植物病理学 植物病理学
- 分子菌学 分子菌学.
- 在真菌病原体的产生过程中.
背景情况:
- Verticillium dahliae是一种重要的土壤传染病原体,导致作物产量损失.
- 像SLN1这样的膜跨度传感器蛋白与真菌病原体毒性有关.
- 在V. dahliae中SLN1的特定作用在很大程度上仍未被描述.
研究的目的:
- 为了阐明在Verticillium dahliae中延伸膜的传感器蛋白SLN1的生物功能.
- 研究VdSLN1与其他信号通路组件的相互作用.
- 为了确定VdSLN1对V. dahliae病原性因子的贡献.
主要方法:
- 在V. dahliae中对VdSLN1的基因鉴定和表征.
- 对VdSLN1与Vst50相互作用的分析以及MAPK模块 (Vst50-Vst11-Vst7) 的调节.
- 评估VdSLN1在植物生长,应激反应,纤维素透,黑色素合成和毒性的作用,包括对VdSho1和VdMsb2.2.的研究.
主要成果:
- VdSLN1与Vst50进行物理相互作用,并调节Vst50-Vst11-Vst7 MAPK模块.
- VdSLN1表达受到VdSho1和VdMsb2的积极调节,这表明通路的关联.
- 缺乏VdSLN1的突变体显示了细胞透和黑色素合成的减少,在VdSho1和VdMsb2删除时观察到对毒性产生添加效应.
结论:
- 在V. dahliae中,VDSLN1是VDSho1和VDMsb2的下游因子.
- 虽然VdSLN1对生长或应激反应并不重要,但通过影响纤维素透和黑色素生物合成,它有助于病毒性.
- VdSLN1,VdSho1和VdMsb2共同在V. dahliae的致病性中发挥着重要作用.
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