Lactiplantibacillus paraxiangfangensis sp. 这种菌种的生长方式是什么? nov.,从传统的中国中分离出来
1College of Life Sciences, Northeast Agricultural University, Harbin 150030, PR China.
概括
在中国的中发现了一种新型的细菌物种Lactiplantibacillus paraxiangfangensis. 这种格拉姆阳性细菌与其最近的亲属Lactiplantibacillus xiangfangensis不同,基于遗传和生化分析.
科学领域:
- 微生物学 微生物学
- 细菌的分类学 细菌的分类学
- 食品微生物学 食品微生物学
背景情况:
- 传统的发酵食品,比如中国的酸菜,有各种微生物群落.
- 乳植物菌种因其在发酵中的作用和潜在的益生菌特性而闻名.
研究的目的:
- 从分类学上描述从中国中分离出来的三种格拉姆阳性细菌菌株.
- 确定这些菌株是否代表了Lactiplantibacillus属内的新物种.
主要方法:
- 多相分类方法包括16S rRNA基因测序,pheS和rpoA基因测序.
- 平均核酸标识 (ANI) 和数字DNA-DNA杂交 (dDDH) 分析.
- 对代谢活动和抗生素耐药性概况的生物化学测试.
主要成果:
- 遗传学分析显示与Lactiplantibacillus xiangfangensis有着密切的关系,但具有显著的遗传差异.
- 新型菌株和L. xiangfangensis之间的ANI和DDDH值低于物种划分值.
- 独特的生物化学特征,包括酸性生产和酶性活动,使这些新型菌株有所区别.
结论:
- 孤立的231-9T,142-6,463-4菌株代表了一个新物种,Lactiplantibacillus paraxiangfangensis sp. 在新的一年里.
- 乳植物细菌paraxiangfangensis被提议作为一个新的物种在乳植物细菌属.
- 这种类型的菌株是231-9T.
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