气候变化领域集成服务门户(CCPortal): Declining metal availability in the Mesozoic seawater reflected in phytoplankton succession

CCPortal

DOI	10.1038/s41561-022-01053-7
	Declining metal availability in the Mesozoic seawater reflected in phytoplankton succession
	Zhang, Qiong; Bendif, El Mahdi; Zhou, Yu; Nevado, Bruno; Shafiee, Roxana; Rickaby, Rosalind E. M.
发表日期	2022
ISSN	1752-0894
EISSN	1752-0908
起始页码	932
结束页码	+
卷号	15 期号:11 页码:12
英文摘要	Variable trace metal concentrations in the Precambrian ocean were closely linked to oxygen availability, although less is known about the drivers of seawater trace metal chemistry after the spread of complex life into the Phanerozoic eon. A major phytoplankton succession took place at the transition from the Palaeozoic to the Mesozoic era (similar to 250 Myr ago), from an ocean dominated by the green Archaeplastida to secondary endosymbiotic algae with red-algal-derived plastids. Here, our comparative genomic analysis of 26 complete proteomes and metal domain analysis of additional 608 partially complete sequences of phytoplankton reveal that groups with different evolutionary history have distinct metal-binding proteins and contrasting metal acquisition strategies, adapted to differing availability of trace metals. The secondary-endosymbiont-bearing lineages are better adapted to well-oxygenated, nutrient-poor environments. This is supported by an enhanced thiol-based binding affinity of their transporters, coupled with minimized proteomic requirement for trace elements such as iron, copper and zinc at both protein and domain levels. Such different metal requirements across these lineages suggest a drastic decline in open-ocean trace metal concentrations at the inception of the Mesozoic, contributing to the shifts in phytoplankton communities that drove major changes in ocean chemical buffering.
学科领域	Geosciences, Multidisciplinary
语种	英语
WOS研究方向	Geology
WOS记录号	WOS:000876863000004
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/272444
作者单位	Hong Kong University of Science & Technology; Hong Kong Branch of the Southern Marine Science & Engineering Guangdong Laboratory (Guangzhou); Hong Kong University of Science & Technology; University of Oxford; University of Quebec; Universite du Quebec a Rimouski; Sun Yat Sen University; Southern Marine Science & Engineering Guangdong Laboratory; Southern Marine Science & Engineering Guangdong Laboratory (Zhuhai); Universidade de Lisboa; Universidade de Lisboa; California Institute of Technology
推荐引用方式 GB/T 7714	Zhang, Qiong,Bendif, El Mahdi,Zhou, Yu,et al. Declining metal availability in the Mesozoic seawater reflected in phytoplankton succession[J],2022,15(11):12.
APA	Zhang, Qiong,Bendif, El Mahdi,Zhou, Yu,Nevado, Bruno,Shafiee, Roxana,&Rickaby, Rosalind E. M..(2022).Declining metal availability in the Mesozoic seawater reflected in phytoplankton succession.NATURE GEOSCIENCE,15(11),12.
MLA	Zhang, Qiong,et al."Declining metal availability in the Mesozoic seawater reflected in phytoplankton succession".NATURE GEOSCIENCE 15.11(2022):12.