关节蛋白B的特征,是一种来自Arthrobacter humicola的抗真菌循环四蛋白
Juan Sebastian Gomez1, Michael Shaikhet2, A Kiripuvaney Loganathan1
1Department of Chemistry, Carleton University, Ottawa, ON, K1S 5B6, Canada.
Journal of chemical ecology
|June 15, 2023
概括
一种新型化合物 - - 关节B从堆肥中发现的Arthrobacter humicola细菌中分离出来. 这种化合物表现出显著的抗真菌活性,具有控制植物病原菌模具的潜力,如Alternaria alternata.
科学领域:
- 微生物学 微生物学
- 农业科学 农业科学
- 生物化学 生化学
背景情况:
- 堆肥可以抑制疾病,但特定的微生物对抗剂及其化合物的理解不足.
- 海洋残留物和泥炭堆肥含有潜在的农业微生物病原体.
- 从堆肥中分离出来的Arthrobacter humicola M9-1A具有对植物病原体的对抗性.
研究的目的:
- 为了识别和描述由Arthrobacter humicola M9-1A.产生的抗真菌化合物.
- 为了研究细菌观察到的抗真菌活性的化学基础.
- 评估隔离化合物对植物病原菌的疗效.
主要方法:
- 培养 Arthrobacter humicola 和收集培养过物.
- 在体外和体内测试过物和提取物的抗真菌活性.
- 生物试验引导的净化,以从乙酸乙烯提取物中分离活性化合物.
- 净化抗真菌化合物的化学结构阐明.
主要成果:
- Arthrobacter humicola 培养过剂减少了番茄上的 Alternaria 腐烂病变.
- 乙酸乙烯提取物抑制了Alternaria alternata的生长.
- 一个新的循环,关节B,被净化和识别.
- 甲状腺B对Alternaria alternata子发芽和菌根生长表现出抗真菌活性.
结论:
- 甲状腺杆菌 (Arthrobacter humicola M9-1A) 产生一种新型的抗真菌化合物 - - 甲状腺B.
- 甲乙显示出作为对植物病原菌的生物控制剂的潜力.
- 这一发现突显了微生物对抗剂在堆肥中对可持续农业的价值.
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