当前位置: X-MOL 学术Syst. Appl. Microbiol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
The first crenarchaeon capable of growth by anaerobic carbon monoxide oxidation coupled with H2 production.
Systematic and Applied Microbiology ( IF 3.4 ) Pub Date : 2020-01-25 , DOI: 10.1016/j.syapm.2020.126064
Tatiana V Kochetkova 1 , Andrei V Mardanov 2 , Tatyana G Sokolova 1 , Elizaveta A Bonch-Osmolovskaya 3 , Ilya V Kublanov 1 , Vadim V Kevbrin 1 , Alexey V Beletsky 2 , Nikolay V Ravin 2 , Alexander V Lebedinsky 1
Affiliation  

The ability to grow by anaerobic CO oxidation with production of H2 from water is known for some thermophilic bacteria, most of which belong to Firmicutes, as well as for a few hyperthermophilic Euryarchaeota isolated from deep-sea hydrothermal habitats. A hyperthermophilic, neutrophilic, anaerobic filamentous archaeon strain 1505 = VKM B-3180 = KCTC 15798 was isolated from a terrestrial hot spring in Kamchatka (Russia) in the presence of 30% CO in the gas phase. Strain 1505 could grow lithotrophically using carbon monoxide as the energy source with the production of hydrogen according to the equation CO + H2O → CO2 + H2; mixotrophically on CO plus glucose; and organotrophically on peptone, yeast extract, glucose, sucrose, or Avicel. The genome of strain 1505 was sequenced and assembled into a single chromosome. Based on 16S rRNA gene sequence analysis and in silico genome-genome hybridization, this organism was shown to be closely related to the Thermofilum adornatum species. In the genome of Thermofilum sp. strain 1505, a gene cluster (TCARB_0867-TCARB_0879) was found that included genes of anaerobic (Ni,Fe-containing) carbon monoxide dehydrogenase and genes of energy-converting hydrogenase ([Ni,Fe]-CODH–ECH gene cluster). Compared to the [Ni,Fe]-CODH–ECH gene clusters occurring in the sequenced genomes of other H2-producing carboxydotrophs, the [Ni,Fe]-CODH–ECH gene cluster of Thermofilum sp. strain 1505 presented a novel type of gene organization. The results of the study provided the first evidence of anaerobic CO oxidation coupled with H2 production performed by a crenarchaeon, as well as the first documented case of lithotrophic growth of a Thermofilaceae representative.



中文翻译:

能够通过厌氧一氧化碳氧化和H2产生而生长的第一只鱼眼。

某些嗜热细菌,其中大多数属于Firmicutes,以及从深海热液生境中分离出来的一些超嗜热Euryarchaeota,都知道通过厌氧CO氧化并从水中产生H 2来生长的能力。在气相中存在30%CO的情况下,从堪察加(俄罗斯)的地温泉中分离出了嗜热,嗜中性,厌氧的丝状古细菌菌株1505 = VKM B-3180 = KCTC 15798。根据一氧化碳CO + H 2 O→CO 2  + H 2,使用一氧化碳作为能源,菌株1505可以岩石状生长; 一氧化碳混合葡萄糖和葡萄糖;并且在蛋白ept,酵母提取物,葡萄糖,蔗糖或Avicel上有机营养。对菌株1505的基因组测序并组装成单个染色体。基于16S rRNA基因序列分析和计算机基因组-基因组杂交,该生物被证明与嗜热丝菌物种密切相关。在Thermofilum sp。的基因组中。发现该菌株为1505菌株,其基因簇(TCARB_0867-TCARB_0879)包含厌氧(含Ni,Fe的)一氧化碳脱氢酶基因和能量转换氢化酶的基因([Ni,Fe] -CODH–ECH基因簇)。与其他H 2的测序基因组中出现的[Ni,Fe] -CODH–ECH基因簇相比-生产carboxydotrophs时,[镍,铁]的-CODH-ECH基因簇Thermofilum藻。菌株1505提出了一种新型的基因组织。该研究的结果提供了第一个证据,证明厌氧的CO氧化和火锅鱼产生的H 2产生,以及第一个有记载的嗜丝菌科植物石化生长的案例。

更新日期:2020-01-25
down
wechat
bug