文石
珊瑚
无定形碳酸钙
无定形固体
碳酸盐
溶解
碳酸钙
骨架(计算机编程)
钙化
方解石
矿物学
生物矿化
化学
材料科学
化学工程
地质学
海洋学
古生物学
结晶学
生物
有机化学
解剖
医学
病理
工程类
作者
Tali Mass,Anthony J. Giuffre,Chang-Yu Sun,Cayla A. Stifler,Matthew J. Frazier,Maayan Neder,Nobumichi Tamura,Camelia Stan,Matthew A. Marcus,Benjamin Gilbert
标识
DOI:10.1073/pnas.1707890114
摘要
Significance Whether coral skeleton crystals grow by attachment of ions from solution or particles from tissue determines ( i ) corals’ growth rate, ( ii ) how they survive acidifying oceans, and ( iii ) the isotopes in the crystals used for reconstructing ancient temperatures. Our data show that two amorphous precursors exist, one hydrated and one dehydrated amorphous calcium carbonate; that these are formed in the tissue as ∼400-nm particles; and that they attach to the surface of coral skeletons, remain amorphous for hours, and finally crystallize into aragonite. Since these particles are formed inside tissue, coral skeleton growth may be less susceptible to ocean acidification than previously assumed. Coral bleaching and postmortem dissolution of the skeleton will occur, but a calcification crisis may not.
科研通智能强力驱动
Strongly Powered by AbleSci AI