HacA是开展蛋白质反应的关键转录因子,对于真菌发育,阿弗拉托克辛生物合成和阿斯伯吉卢斯黄菌的致病性是必需的
Min Yu1, Xiaoling Zhou1, Dongyue Chen1
1School of Life Sciences, Anhui Agricultural University, Hefei 230036, China.
International journal of food microbiology
|April 23, 2024
概括
淘汰Aspergillus flavus中的haca基因显著降低了其致病性和阿弗拉托克辛B1的产生. 这种真菌需要HacA来生长,发育和承受压力,这表明HacA是污染控制的目标.
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
- 植物病理学 植物病理学
背景情况:
- 阿斯伯吉勒斯黄 (Aspergillus flavus) 产生有害的亚毒素,污染食品和料.
- 细胞内膜网膜 (ER) 均质对于真菌的营养物质获取和蛋白质分泌至关重要.
- 在未折叠的蛋白质反应中的一个关键转录因子HacA的功能在A. flavus.中尚不清楚.
研究的目的:
- 调查 hacA 基因在 Aspergillus flavus 发育,致病性和亚拉托克辛产生中的作用.
- 了解HacA在应对环境压力的参与.
主要方法:
- 在A. flavus. 中对hacaA的基因淘汰.
- 突变菌株的表型分析,包括对玉米核的致病性测定.
- 评估生,硬化发育和阿弗拉托克辛B1的产生.
- 对ER应力 (DTT),热,细胞壁,透和pH应力的敏感度的评估.
- 转录组分析以确定HacA调节的生物过程.
主要成果:
- 哈卡淘汰突变显示病原性降低,由于生长受损和异常的叶发育,未能殖民玉米.
- 在突变者中,形发生和硬化发育受到阻碍.
- 这种突变菌株没有产生阿弗拉托克辛B1.1.
- 突变者对ER压力,热量,细胞壁,透和pH压力的敏感性增加.
- 转录组分析揭示了HacA在真菌生长,繁殖,真菌毒素生物合成和应激反应中的作用.
结论:
- 哈卡对于阿斯伯吉勒斯黄菌的发育,病原性和亚拉托克辛生物合成至关重要.
- 准HacA为防止A. flavus污染提供了一个潜在的策略.
关键词:
非洲毒素生物合成亚斯伯吉illus flavususus的 亚斯伯吉illus flavusus 的 亚斯伯吉illus flavusus 的 亚斯伯吉illus flavusus 的 亚斯伯吉illus flavusus 的 亚斯伯吉illus flavus 的哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈致病性 致病性 致病性转录因子是一种转录因子.更多相关视频
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