克莱布西埃拉密歇根尼斯:一种来自乌斯蒂拉戈梅迪斯 (Ustilago maydis) 的固内皮细菌
Pengyu Liang1, Jianwei Jiang1, Zhengxiang Sun1
1Department of Plant Protection, College of Agriculture, Yangtze University, Jingzhou, 434025, China.
AMB Express
|December 19, 2023
概括
在Ustilago maydis真菌中发现了一种新的内皮细菌Klebsiella michiganensis. 这种细菌具有固能力,可能有利于其真菌宿主.
科学领域:
- 菌类学 菌类学是指菌类学.
- 微生物学 微生物学
- 植物病理学 植物病理学
背景情况:
- 乌斯蒂拉戈可能会导致重要的玉米污染病.
- 致病性真菌中的细胞内细菌是鲜为人知的.
- 研究真菌-细菌内共生提供了对宿主-病原体相互作用的见解.
研究的目的:
- 为了隔离和识别居住在Ustilago maydis hyphae中的细菌.
- 描述内细菌的共生关系和功能能力.
- 评估细菌的固的潜力.
主要方法:
- 从受感染的玉米中分离Ustilago maydis菌株YZZF202006
- 使用PCR放大和光 in situ杂交 (FISH) 确认细胞内细菌.
- 基因组分析 (平均核酸标识 - ANI) 和细菌鉴定的基因组分析.
- 培养,表征,GFP标记,并将细菌重新引入U.maydis.中.
- 乙烯还原试验以量化基酶活性.
- 基因组测序以确定固定基因.
主要成果:
- 从U.maydis.中分离出一种内细菌,后来被确定为Klebsiella michiganensis YZUMF202001,这种细菌是从U.maydis.中分离出来的
- K. michiganensis被成功重新引入,并证实在U. maydis hyphae.中生活.
- 这种细菌表现出显著的酶活性 (646.25 ± 38.61 nmol·mL−1·h−1 C2H4),并且可以在没有的介质上生长.
- 在它的基因组中发现了一组完整的固定基因 (nifJHDKTXENXUSVWZMFLABQ).
结论:
- 克莱布西埃拉密歇根尼斯 (Klebsiella michiganensis) 是一种在Ustilago maydis.中发现的内皮细菌.
- 这种内生生物具有功能固能力.
- 末的K. michiganensis可能有助于U. maydis真菌的固,在农业中提供潜在的应用.
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