气候变化领域集成服务门户(CCPortal): Limited carbon cycling due to high-pressure effects on the deep-sea microbiome

CCPortal

DOI	10.1038/s41561-022-01081-3
	Limited carbon cycling due to high-pressure effects on the deep-sea microbiome
	Amano, Chie; Zhao, Zihao; Sintes, Eva; Reinthaler, Thomas; Stefanschitz, Julia; Kisadur, Murat; Utsumi, Motoo; Herndl, Gerhard J.
发表日期	2022
ISSN	1752-0894
EISSN	1752-0908
起始页码	1041
结束页码	+
卷号	15 期号:12 页码:17
英文摘要	Deep-sea microbial communities are exposed to high-pressure conditions, which has a variable impact on prokaryotes depending on whether they are piezophilic (that is, pressure-loving), piezotolerant or piezosensitive. While it has been suggested that elevated pressures lead to higher community-level metabolic rates, the response of these deep-sea microbial communities to the high-pressure conditions of the deep sea is poorly understood. Based on microbial activity measurements in the major oceanic basins using an in situ microbial incubator, we show that the bulk heterotrophic activity of prokaryotic communities becomes increasingly inhibited at higher hydrostatic pressure. At 4,000 m depth, the bulk heterotrophic prokaryotic activity under in situ hydrostatic pressure was about one-third of that measured in the same community at atmospheric pressure conditions. In the bathypelagic zone-between 1,000 and 4,000 m depth-similar to 85% of the prokaryotic community was piezotolerant and similar to 5% of the prokaryotic community was piezophilic. Despite piezosensitive-like prokaryotes comprising only similar to 10% (mainly members of Bacteroidetes, Alteromonas) of the deep-sea prokaryotic community, the more than 100-fold metabolic activity increase of these piezosensitive prokaryotes upon depressurization leads to high apparent bulk metabolic activity. Overall, the heterotrophic prokaryotic activity in the deep sea is likely to be substantially lower than hitherto assumed, with major impacts on the oceanic carbon cycling.
学科领域	Geosciences, Multidisciplinary
语种	英语
WOS研究方向	Geology
WOS记录号	WOS:000889417500002
来源期刊	NATURE GEOSCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/272507
作者单位	University of Vienna; Spanish Institute of Oceanography; University of Tsukuba; University of Tsukuba; Utrecht University; Royal Netherlands Institute for Sea Research (NIOZ); University of Vienna; Helmholtz Association; GEOMAR Helmholtz Center for Ocean Research Kiel
推荐引用方式 GB/T 7714	Amano, Chie,Zhao, Zihao,Sintes, Eva,et al. Limited carbon cycling due to high-pressure effects on the deep-sea microbiome[J],2022,15(12):17.
APA	Amano, Chie.,Zhao, Zihao.,Sintes, Eva.,Reinthaler, Thomas.,Stefanschitz, Julia.,...&Herndl, Gerhard J..(2022).Limited carbon cycling due to high-pressure effects on the deep-sea microbiome.NATURE GEOSCIENCE,15(12),17.
MLA	Amano, Chie,et al."Limited carbon cycling due to high-pressure effects on the deep-sea microbiome".NATURE GEOSCIENCE 15.12(2022):17.