光通过替代拼接在真菌中控制基因功能
Yifan Li1, Huanhong Lu1, Degang Guo1
1Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Educational Ministry Engineering Center of Resource-saving fertilizers, Department of Plant Nutrition and Fertilizer Science, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China.
概括
光通过控制替代拼接 (AS) 来调节真菌基因活动. 这项研究详细介绍了从蓝光到拼接机械的新信号通路,影响真菌发育和生物合成.
科学领域:
- 菌类学 菌类学是指菌类学.
- 分子生物学分子生物学
- 生物化学 生化学
背景情况:
- 光是调节真菌基因表达的关键环境信号.
- 对光的反应涉及转录控制,但后转录调节仍然不太了解.
研究的目的:
- 为了研究光在状真菌中调节替代拼接 (AS) 中的作用.
- 阐明将光感知与AS调节联系起来的分子机制.
主要方法:
- 在不同的光照条件下对基因表达和AS模式进行比较分析.
- 对关键信号通路组件 (BLR1,Sak,SRK1,SRP1) 的遗传操纵.
- 生物化学测试以确定蛋白质局部化和酸化状态.
主要成果:
- 光,特别是蓝光,可以调节Aspergillus nidulans,Trichoderma guizhouense和Neurospora crassa中的AS.
- 在 *T. guizhouense* 中,蓝光诱导的AS会影响由BLR1受体介导的ergothioneine生物合成和结合.
- 一个涉及MAPK HOG (Sak) 路径,SRK1和SRP1的信号级联将光信号传输到拼接机器,调节AS效率和光诱导的冷凝.
结论:
- 光通过替代拼接在转录后层面调节真菌生物学.
- 一个新的信号通路将环境光信号与真菌拼接机械连接起来,影响发育和新陈代谢.
- 这一发现为了解真菌环境感知和响应机制增加了新的层次.
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