气候变化领域集成服务门户(CCPortal): A modern scleractinian coral with a two-component calcite

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DOI	10.1073/pnas.2013316117
	A modern scleractinian coral with a two-component calcite–aragonite skeleton
	Stolarski J.; Coronado I.; Murphy J.G.; Kitahara M.V.; Janiszewska K.; Mazur M.; Gothmann A.M.; Bouvier A.-S.; Marin-Carbonne J.; Taylor M.L.; Quattrini A.M.; McFadden C.S.; Higgins J.A.; Robinson L.F.; Meibom A.
发表日期	2021
ISSN	00278424
卷号	118 期号:3
英文摘要	One of the most conserved traits in the evolution of biomineralizing organisms is the taxon-specific selection of skeletal minerals. All modern scleractinian corals are thought to produce skeletons exclusively of the calcium-carbonate polymorph aragonite. Despite strong fluctuations in ocean chemistry (notably the Mg/Ca ratio), this feature is believed to be conserved throughout the coral fossil record, spanning more than 240 million years. Only one example, the Cretaceous scleractinian coral Coelosmilia (ca. 70 to 65 Ma), is thought to have produced a calcitic skeleton. Here, we report that the modern asymbiotic scleractinian coral Paraconotrochus antarcticus living in the Southern Ocean forms a two-component carbonate skeleton, with an inner structure made of high-Mg calcite and an outer structure composed of aragonite. P. antarcticus and Cretaceous Coelosmilia skeletons share a unique microstructure indicating a close phylogenetic relationship, consistent with the early divergence of P. antarcticus within the Vacatina (i.e., Robusta) clade, estimated to have occurred in the Mesozoic (ca. 116 Mya). Scleractinian corals thus join the group of marine organisms capable of forming bimineralic structures, which requires a highly controlled biomineralization mechanism; this capability dates back at least 100 My. Due to its relatively prolonged isolation, the Southern Ocean stands out as a repository for extant marine organisms with ancient traits. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Biomineralization; Calcium carbonate; Evolution; Scleractinian corals; Southern Ocean
语种	英语
scopus关键词	calcium carbonate; magnesium; anthropometric parameters; Article; biomineralization; coral; Cretaceous; Cretaceous Coelosmilia; inner structure; isolation; marine species; Mesozoic; nonhuman; outer structure; Paraconotrochus antarcticus; phylogeny; priority journal; scleractinian coral; Southern Ocean
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/180947
作者单位	Institute of Paleobiology, Polish Academy of Sciences, Warsaw, PL-00-818, Poland; Faculty of Biological and Environmental Sciences, University of Leon, Leon, 24171, Spain; Department of Geosciences, Princeton University, Princeton, NJ 08544, United States; Marine Science Department, Federal University of São Paulo, Santos (SP), 11070-100, Brazil; Centre for Marine Biology, University of São Paulo, São Sebastião (SP, 11612-109, Brazil; Department of Chemistry, University of Warsaw, Warsaw, PL-02-093, Poland; Department of Environmental Studies, St. Olaf College, Northfield, MN 55057, United States; Department of Physics, St. Olaf College, Northfield, MN 55057, United States; Center for Advanced Surface Analysis, Institute of Earth Sciences, Université de Lausanne, Lausanne, CH-1015, Switzerland; School of Life Sciences, University of Essex, Wivenhoe Park, Colchester, CO4 3SQ, United Kingdom; Department of Invertebrate Zoology, Smithsonian Institution, Washington, DC 20560-0163, United States; Departmen...
推荐引用方式 GB/T 7714	Stolarski J.,Coronado I.,Murphy J.G.,等. A modern scleractinian coral with a two-component calcite–aragonite skeleton[J],2021,118(3).
APA	Stolarski J..,Coronado I..,Murphy J.G..,Kitahara M.V..,Janiszewska K..,...&Meibom A..(2021).A modern scleractinian coral with a two-component calcite–aragonite skeleton.Proceedings of the National Academy of Sciences of the United States of America,118(3).
MLA	Stolarski J.,et al."A modern scleractinian coral with a two-component calcite–aragonite skeleton".Proceedings of the National Academy of Sciences of the United States of America 118.3(2021).