Salipaludibacillus daqingensis sp. 这种植物的种类是什么? nov.,从一个油田中分离出来的一种中等性细菌
Liwei Guo1, Jiading Liu1, Qiang Hou1
1Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, PR China.
International journal of systematic and evolutionary microbiology
|November 2, 2023
概括
在大庆油田沉积物中发现了一种新的性细菌Salipaludibacillus daqingensis DQ-9T. 这种随意无氧的,形成内胞的杆子代表了Salipaludibacillus属内的新物种.
科学领域:
- 微生物学 微生物学
- 细菌的分类学 细菌的分类学
- 环境微生物学 环境微生物学
背景情况:
- 性和性细菌在包括油田在内的各种生态系统中发挥着至关重要的作用.
- 中国的大庆油田是微生物勘探的独特环境.
- 了解极端环境中的细菌多样性有助于发现具有潜在工业应用的新型微生物.
研究的目的:
- 从大庆油田沉积物中分离和描述一种新型细菌.
- 用多相方法确定孤立菌株的分类学位置.
- 根据全面的数据,在Salipaludibacillus属内提出一种新物种.
主要方法:
- 从油田沉积物样本中分离和培养细菌.
- 多相分类学表征包括生理学,生化和化学分类学分析.
- 16S rRNA基因序列分析,数字DNA-DNA杂交,以及平均核酸标识 (ANI) 的计算.
主要成果:
- 一种新型的 alkaliphilic,Gram-stain-positive,中等性,棒形,内形成,运动性,选择性无氧细菌,被指定为DQ-9T,被分离出来.
- 菌株DQ-9T在8%的NaCl和pH值9.0-9.5和30-35°C时表现出最佳的生长.
- 基于16S rRNA基因序列的遗传学分析将DQ-9T置于Salipaludibacillus属内,与Salipaludibacillus neizhouensis JSM 071004T有98.37%的相似性.
- 数字DNA-DNA杂交 (72.0%) 和ANI (21.6%) 值证实DQ-9T与S. neizhouensis.不同.
- 化学分类学数据,包括极性脂质,主要脂肪酸,糖成分 (meso-diaminopimelic acid) 和呼吸 (menaquinone-7),支持了其独特的身份.
- DNA G+C含量被确定为37.5%.
结论:
- 菌株DQ-9T代表了Salipaludibacillus属的一种新物种,其名称是Salipaludibacillus daqingensis sp. 建议使用nov.
- 独特的化学分类学,生理学和遗传特征清楚地区分了DQ-9T与其他已知的Salipaludibacillus物种.
- 这一发现扩大了已知的极端性细菌的多样性,并有助于了解油田环境中的微生物生命.
关键词:
萨利帕卢迪巴西勒斯 (Salipaludibacillus) 是一种的植物.沙利帕卢迪巴西勒斯达金尼斯种类 (Salipaludibacillus daqingensis sp. sp.) 的一种植物. 在新的一年里.作为一个有性的性人,Alkaliphile适度型的型分子油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田油田相关概念视频
Hyperthermophilic Bacteria
21
Domain Bacteria includes some unique hyperthermophilic species. They exhibit remarkable adaptations that enable survival in extreme environments.Thermotoga species are rod-shaped, gram-negative, non-sporulating hyperthermophiles that form a sheath-like envelope called a toga. They ferment sugars or starch, producing lactate, acetate, CO₂, and H₂, and can also grow via anaerobic respiration using H₂ and ferric iron. Found in hot springs and hydrothermal vents, over 20% of their...
21
Bacterial Phylum Proteobacteria
24
Proteobacteria, one of the largest and most diverse bacterial phyla, encompasses a wide range of Gram-negative bacteria distinguished by their outer membrane composed of lipopolysaccharides. These microorganisms exhibit various metabolic capabilities, including phototrophy, chemolithotrophy, and heterotrophy, and thrive in diverse environments from soil to aquatic systems and host-associated niches. The phylum is divided into six classes: Alphaproteobacteria, Betaproteobacteria,...
24
Anoxygenic Phototrophic Bacteria
34
Anoxygenic phototrophic bacteria are a diverse group of microorganisms that perform photosynthesis without producing oxygen. They primarily include purple sulfur bacteria, purple nonsulfur bacteria, green sulfur bacteria, and green nonsulfur bacteria. These bacteria are classified into the Gammaproteobacteria, Alphaproteobacteria, Betaproteobacteria, Chlorobi, and Chloroflexi lineages, each with distinct physiological and ecological adaptations.Purple sulfur bacteria belong to the...
34
Bacterial Phylum Bacteroidota
24
The phylum Bacteroidota includes over 700 species classified into four primary orders: Bacteroidales, Cytophagales, Flavobacteriales, and Sphingobacteriales. These gram-negative, non-sporulating rods exhibit saccharolytic capabilities and can be aerobic or fermentative, encompassing obligate aerobes, facultative aerobes, and obligate anaerobes. Many species display gliding motility, though some are nonmotile or use flagella. The genus Bacteroides is well-studied due to its significant role in...
24
Other Unique Bacteria
19
Magnetic bacteria exhibit a directed movement called magnetotaxis, driven by structures called magnetosomes. These magnetosomes consist of chains of magnetic particles made of either magnetite (Fe₃O₄) or greigite (Fe₃S₄) and are organized in a linear conformation by a protein scaffold within invaginations of the cell membrane. The bacteria align along the north–south magnetic field lines, much like a compass needle. They are typically microaerophilic or anaerobic...
19
Diversity of Archaea IV
35
Hyperthermophilic archaea are a group of extremophiles thriving at temperatures above 80°C, often in hydrothermal vents and volcanic soils where conditions surpass the boiling point of water. At such temperatures, proteins, membranes, and DNA in most organisms degrade, but hyperthermophiles have evolved remarkable adaptations to maintain stability and function.Unique Cellular FeaturesHyperthermophilic membranes are composed of a monolayer of biphytanyl tetraether lipids, which resist...
35


