Gllac7的替代拼接调节了Ganoderma lucidum中的红素降解
Lining Wang1, Zihao Li2, Zhaohua Ping1
1Guangdong Engineering Laboratory of Biomass Value-added Utilization, Guangdong Engineering Research & Development Center for Comprehensive Utilization of Plant Fiber, Guangzhou Key Laboratory for Comprehensive Utilization of Plant Fiber, Institute of Biological and Medical Engineering, Guangdong Academy of Sciences, Guangzhou 510316, China.
International journal of biological macromolecules
|April 14, 2025
概括
这项研究揭示了Ganoderma lucidum中两种形式的乳酶酶 (Gllac7.1和Gllac7.2) 如何影响素分解和真菌生长. 一种特定的蛋白调节Gllac7.1,增强生物质降解.
科学领域:
- 菌类学 菌类学是指菌类学.
- 生物化学 生物化学
- 分子生物学分子生物学
背景情况:
- 乳糖酶对于白色腐烂真菌中的素降解至关重要.
- 光 (Ganoderma lucidum) 在这个过程中利用乳酸酶,包括Gllac7.
- Gllac7存在于两个拼接异型:Gllac7.1和Gllac7.2.2.
研究的目的:
- 研究Gllac7.1和Gllac7.2.2的不同功能.
- 为了阐明Gllac的转录调节7.1.1.
- 了解这些异构体在红素降解和真菌发育中的作用.
主要方法:
- 在不同的介质条件下进行基因表达分析 (宁与葡萄糖).
- 为Gllac7.1,Gllac7.2和chr8g0158731.8创建和分析过度表达 (OE) 和RNA干扰 (RNAi) 变换剂.
- 素和包的降解测试.
- 对真菌生长和原始形成的分析.
主要成果:
- 在素介质上,Gllac7.1的表达显著增加,而Gllac7.2的表达则下降.
- 过度表达Gllac7.1和Gllac7.2的RNAi增强了木质素降解和真菌生长.
- Gllac7.2的RNAi加速了原始生物的形成.
- 一种C2H2指蛋白 (chr8g0158731) 与Gllac7.1促进体结合.
- chr8g0158731的RNAi导致Gllac7.1的表达增加,并改善了包油的降解.
结论:
- Gllac7的替代拼接会在G. lucidum中产生具有不同的功能作用的异型.
- Gllac7.1和Gllac7.2不同调节素降解和真菌发育.
- chr8g0158731 作为Gllac7.1表达的积极调节剂.
- 这些发现为分子育种策略提供了基础,以提高生物质降解能力.
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