气候变化领域集成服务门户(CCPortal): Candidatus Eremiobacterota, a metabolically and phylogenetically diverse terrestrial phylum with acid-tolerant adaptations

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DOI	10.1038/s41396-021-00944-8
	Candidatus Eremiobacterota, a metabolically and phylogenetically diverse terrestrial phylum with acid-tolerant adaptations
	Ji, Mukan; Williams, Timothy J.; Montgomery, Kate; Wong, Hon Lun; Zaugg, Julian; Berengut, Jonathan F.; Bissett, Andrew; Chuvochina, Maria; Hugenholtz, Philip; Ferrari, Belinda C.
通讯作者	Ferrari, BC (通讯作者)
发表日期	2021
ISSN	1751-7362
EISSN	1751-7370
起始页码	2692
结束页码	2707
卷号	15 期号:9
英文摘要	Candidatus phylum Eremiobacterota (formerly WPS-2) is an as-yet-uncultured bacterial clade that takes its name from Ca. Eremiobacter, an Antarctic soil aerobe proposed to be capable of a novel form of chemolithoautotrophy termed atmospheric chemosynthesis, that uses the energy derived from atmospheric H-2-oxidation to fix CO2 through the Calvin-Benson-Bassham (CBB) cycle via type 1E RuBisCO. To elucidate the phylogenetic affiliation and metabolic capacities of Ca. Eremiobacterota, we analysed 63 public metagenome-assembled genomes (MAGs) and nine new MAGs generated from Antarctic soil metagenomes. These MAGs represent both recognized classes within Ca. Eremiobacterota, namely Ca. Eremiobacteria and UBP9. Ca. Eremiobacteria are inferred to be facultatively acidophilic with a preference for peptides and amino acids as nutrient sources. Epifluorescence microscopy revealed Ca. Eremiobacteria cells from Antarctica desert soil to be coccoid in shape. Two orders are recognized within class Ca. Eremiobacteria: Ca. Eremiobacterales and Ca. Baltobacterales. The latter are metabolically versatile, with individual members having genes required for trace gas driven autotrophy, anoxygenic photosynthesis, CO oxidation, and anaerobic respiration. UBP9, here renamed Ca. Xenobia class. nov., are inferred to be obligate heterotrophs with acidophilic adaptations, but individual members having highly divergent metabolic capacities compared to Ca. Eremiobacteria, especially with regard to respiration and central carbon metabolism. We conclude Ca. Eremiobacterota to be an ecologically versatile phylum with the potential to thrive under an array of extreme environmental conditions.
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Microbiology
WOS类目	Ecology ; Microbiology
WOS记录号	WOS:000631484000001
来源期刊	ISME JOURNAL
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260345
推荐引用方式 GB/T 7714	Ji, Mukan,Williams, Timothy J.,Montgomery, Kate,et al. Candidatus Eremiobacterota, a metabolically and phylogenetically diverse terrestrial phylum with acid-tolerant adaptations[J]. 中国科学院青藏高原研究所,2021,15(9).
APA	Ji, Mukan.,Williams, Timothy J..,Montgomery, Kate.,Wong, Hon Lun.,Zaugg, Julian.,...&Ferrari, Belinda C..(2021).Candidatus Eremiobacterota, a metabolically and phylogenetically diverse terrestrial phylum with acid-tolerant adaptations.ISME JOURNAL,15(9).
MLA	Ji, Mukan,et al."Candidatus Eremiobacterota, a metabolically and phylogenetically diverse terrestrial phylum with acid-tolerant adaptations".ISME JOURNAL 15.9(2021).