在Agrobacterium fabrum中,有三种基因控制着链杆菌素敏感性
Robyn E Howarth1, Curtis M Pattillo1, Joel S Griffitts1
1Department of Microbiology and Molecular Biology, Brigham Young University , Provo, Utah, USA.
Journal of bacteriology
|September 11, 2023
概括
在Agrobacterium fabrum中,高频率的链杆菌素耐药性与strB基因有关,该基因编码了氨基糖化物转化酶. 这项研究阐明了这种重要的植物病原体中斯特雷普托米辛耐药性和敏感性的机制.
科学领域:
- 微生物学 微生物学
- 分子生物学分子生物学
- 植物病理学 植物病理学
背景情况:
- 菌素 (Sm) 是一种治疗细菌感染的关键抗生素.
- Agrobacterium fabrum是研究细菌病原和基因转移的模型生物.
- 在A. fabrum中,链杆菌素耐药性和敏感性的机制以前未被描述.
研究的目的:
- 为了研究Agrobacterium fabrum中抗性链杆菌素的遗传基础.
- 为了识别调节A. fabrum中链杆菌素敏感性的基因.
- 了解特定基因在链杆菌素耐药机制中的作用.
主要方法:
- 隔离和表征抗 estreptomycin 的 A. fabrum 变种.
- 染色体基因strB的鉴定,该基因编码了一个假定的氨基甘油酸转化酶.
- 分析 strB,rpsL 和 rsmG 在调节 estreptomycin 敏感性的作用.
主要成果:
- 在A. fabrum中,高频率的链杆菌素耐药性归因于染色体基因strB.
- 这种strB基因编码了一种斯特列托米辛失活酶,StrB.
- 基因 strB,rpsL 和 rsmG 集体调节了 A. fabrum. 菌中的链杆菌素敏感性.
结论:
- 一种新型的 estreptomycin-inactivating 酶,StrB,有助于 A. fabrum. 的内源性 estreptomycin 耐药性.
- strB,rpsL和rsmG之间的相互作用对链杆菌素敏感性调节至关重要.
- 这项研究提供了对关键植物病原体抗生素耐药机制的见解.
关键词:
这种细菌是Agrobacterium fabrum.gidB gidB gidB gidB gidB gidB gidB gidB gidB gidB gidB gidB gidB gidB gidB gidB gidB gidBrpsLL 在线阅读在RSMG中使用.在 strBB 中,strBB 是指 strBB 的值.链杆菌素耐药性 链杆菌素耐药性更多相关视频
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