Campylobacter molothri sp. 这种细菌的种类. Nov. 从野生鸟类中分离出来
William G Miller1, Bruno S Lopes2,3, Mary H Chapman1
1Produce Safety and Microbiology Research Unit, Agricultural Research Service, U.S. Department of Agriculture, Albany, CA, USA.
International journal of systematic and evolutionary microbiology
|February 6, 2025
概括
在野生鸟类和河水中发现了一种新型的hippuricase阳性Campylobacter,Campylobacter molothri. 遗传学和基因组分析证实了它与已知的坎比洛巴克特菌种的区别.
科学领域:
- 微生物学 微生物学
- 基因组学就是基因组学.
- 细菌学 细菌学是一门学科.
背景情况:
- 阳性Hippuricase的Campylobacter菌株从野生鸟类和河水中分离出来.
- 以前的排型表明与Campylobacter jejuni和Campylobacter coli的相关性,但与斑马相关的物种相似,例如C. aviculae.
研究的目的:
- 从环境样本中分离出来的新型坎皮洛巴克特菌株的特征和分类.
- 为了确定这些菌株是否代表Campylobacter属内的新物种.
主要方法:
- 用330个核心基因进行了家族遗传学分析.
- 数字DNA-DNA杂交和平均核酸同一性的计算.
- 标准的表型检测和代谢途径的基因组分析.
主要成果:
- 遗传学分析揭示了一个独特的分类,与其他坎比洛巴克特种群分开.
- 数字DNA-DNA杂交和ANI值支持将其归类为新型分类.
- 现型测试显示微有氧/无氧,运动性,格拉姆阴性,螺旋性细胞,氧化酶,催化酶和酸盐还原酶阳性,但尿酸酶阴性.
- 基因组分析表明了几个氨基酸和辅助因子的辅助性,以及完整的Entner-Doudoroff和Leloir通路的存在.
结论:
- 29个孤立的菌株代表了一种新型的Campylobacter物种,被提出为Campylobacter molothri sp. 在新的一年里.
- 坎皮洛巴克特 (Campylobacter molothri) 与坎皮洛巴克特 (Campylobacter lari) 群体和斑马相关的种群具有相同的代谢特征.
- 这些发现扩大了已知的Campylobacter物种的多样性及其潜在的生态.
更多相关视频
08:23Culture Methods to Determine the Limit of Detection and Survival in Transport Media of Campylobacter Jejuni in Human Fecal Specimens
Published on: March 10, 2020
11.4K
05:34Author Spotlight: Development of an Enhanced Protocol for Rapid and Accurate Isolation of Campylobacter from Food Products
Published on: February 23, 2024
1.7K
相关概念视频
Bacterial Phylum Tenericutes
The phylum Tenericutes, which includes the single class Mollicutes, comprises bacteria that lack cell walls. The term "Mollicutes" derives from the Latin word mollis, meaning "soft." These organisms are among the smallest known and are commonly referred to as mycoplasmas due to the prominence of the genus Mycoplasma, which includes well-known human pathogens. Despite their inability to stain gram-positively (a result of their lack of cell walls), mycoplasmas are phylogenetically related to the...
Rocky Mountain Spotted Fever
Rocky Mountain Spotted Fever (RMSF) is a severe tick-borne illness caused by Rickettsia rickettsii, a Gram-negative, coccobacillary bacterium. This pathogen is an obligate intracellular parasite, requiring a host cell for replication. Transmission occurs through the bite of an infected tick. In the United States, the most important vectors are Dermacentor variabilis (American dog tick) and Dermacentor andersoni (Rocky Mountain wood tick), though other tick species may also serve as vectors.
Botulism
Botulism is a life-threatening neuroparalytic condition caused by botulinum neurotoxin, which is produced by the bacterium Clostridium botulinum, a Gram-positive, spore-forming, obligate anaerobe.In adults, the toxin enters the body in different ways: in foodborne botulism, the preformed toxin is absorbed in the intestine. In wound botulism, spores grow in injured tissue and release the toxin into the blood. Infant botulism differs mechanistically from adult forms. In infants, botulism commonly...
Bacterial Gastroenteritis
Bacterial gastroenteritis, characterized by diarrhea, abdominal cramps, and vomiting, is often caused by ingestion of contaminated food or water and is frequently associated with pathogenic Escherichia coli strains. These microbes exploit two principal mechanisms to inflict disease.Shiga toxin–producing E. coli, also referred to as STEC—notably O157:H7—release Shiga toxins that target ribosomes, blocking protein synthesis. The B subunit of the toxin binds the host glycolipid receptor...
Toxoplasmosis
Toxoplasmosis, a zoonotic disease caused by the protozoan Toxoplasma gondii, poses significant public health challenges globally due to its high seroprevalence and varied clinical manifestations. As an obligate intracellular parasite, T. gondii can infect all warm-blooded vertebrates, but felids are its only definitive hosts, shedding unsporulated oocysts into the environment. Humans typically acquire the infection through ingestion of tissue cysts in undercooked meat or oocysts from...
