通过使用三种不同机制的杀菌剂对Alternaria alternata的抗药差异的比较和分析
Qian Bai1,2, Xinbo Ma1,2, Mansoor Hayat1,2
1School of Forestry, Northeast Forestry University, Harbin 150040, China.
Journal of fungi (Basel, Switzerland)
|April 25, 2025
概括
这项研究研究了Alternaria alternata对杀菌剂压力的反应. 弗卢迪尼尔 (Fludioxonil),普罗克洛拉兹 (prochloraz) 和曼科泽布 (manozeb) 治疗发现了明显的遗传和生理变化,为真菌耐药机制和杀菌剂发展提供了洞察力.
科学领域:
- 植物病理学 植物病理学
- 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:
- Alternaria alternata导致大量的作物损失,需要有效的控制策略.
- 了解病原体对杀菌剂的反应对于制定耐药性管理计划至关重要.
研究的目的:
- 为了研究Alternaria alternata对三种杀菌剂的分子和生理反应:普罗克洛拉兹 (PCZ),曼科泽布 (MZ) 和氧 (FLU).
- 为了确定关键的基因和途径,涉及真菌耐药性,杀菌剂诱导的压力.
主要方法:
- 在A. alternata.上进行了真菌杀菌剂敏感性测试 (FST).
- 在PCZ,MZ和FLU治疗后,在EC50度下进行了转录组分析 (RNA测序) 和生理分析.
- 使用了基因本体学 (GO) 和基因和基因组的京都百科全书 (KEGG) 途径分析.
- 进行了生理指数和与耐药性相关的基因之间的相关性分析.
主要成果:
- 弗卢迪尼尔 (FLU) 诱导的差异性表达基因 (DEGs) 的数量最多,其次是普罗克洛拉兹 (PCZ),然后是曼科泽布 (MZ).
- DEGs主要参与核糖体生物合成 (FLU),脂质/碳水化合物代谢 (MZ) 和碳水化合物代谢 (PCZ).
- 治疗MZ显示出与pyruvate代谢途径相关的独特遗传反应,而FLU和PCZ与核糖体生物发生有关.
- 与耐药性相关的基因,包括铁酶,ABC载体和抗氧化功能相关的基因,都被上调. 黑色素和厄戈斯特醇合成途径对FLU有强烈的反应.
- 诸如黑色素和MDA含量等生理指数与抗性基因呈正相关,而可溶性蛋白,SOD和CAT活动则呈负相关.
结论:
- 杀菌剂治疗在Alternaria alternata中引起了不同的转录和生理反应.
- 该研究确定了特定的代谢途径和赋予耐药性的基因,为改善杀菌剂开发提供了基础.
- 了解这些反应可以导致更有效的化学控制策略来对抗A. alternata感染.
关键词:
另一个是Alternaria alternata.流氧尼尔是一种流氧尼尔.曼科兹贝布是什么意思生理学指标 生理学指标现在,我们可以使用 prochlorazine.抗性基因是抗性的基因.阻力路径的阻力路径.转录组 (transcriptome) 是一个转录组.更多相关视频
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