Coral Calcification, Cells to Reefs
Coral Calcification, Cells to Reefs
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DOI：
10.1007/978-94-007-0114-4_9
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发表时间：
2011-01-01
期刊：
影响因子：
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通讯作者：
Tambutte, Sylvie
中科院分区：
文献类型：
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作者：
Allemand, Denis;Tambutte, Eric;Tambutte, Sylvie
尽管进行了超过世纪的研究，但人们对珊瑚生物矿化导致珊瑚生长和珊瑚礁形成的机制仍然知之甚少，尽管全球对珊瑚礁的主要威胁，如海洋酸化，主要影响这一过程。珊瑚骨骼被用作环境档案，但控制微量元素和稳定同位素结合的重要过程仍然未知。由于缺乏合适的细胞模型，我们对珊瑚生理学的认识仅限于生物体水平，然而新方法的出现，如珊瑚基因组学，即使有关生物矿化领域的数据很少，但它也正在极大地改变我们对这些动物的认识。本章回顾了我们现有的知识，并讨论了不同的理论珊瑚钙化，从分子到珊瑚礁的水平。结论是在一个列表中的关键问题要解决，以了解珊瑚钙化的亲密机制，必不可少的，以确定珊瑚的敏感性海洋酸化的起源，以改善古海洋重建或珊瑚礁管理，或“只是”了解软生物体的基因如何控制细胞外三维骨架的形成。
In spite of more than one century and half of studies, mechanisms of coral biomineralization, leading to coral growth and reef formation, still remain poorly known, although major global threats to coral reefs, such as ocean acidification, primarily affect this process. Coral skeletons are used as environmental archives but the vital processes that govern incorporation of trace elements and stable isotope are still unknown.Our knowledge on coral physiology is restricted to the organismal level due to the lack of appropriate cell model, however the advent of new approaches, such as coral genomic, is changing drastically our knowledge on these animals even if only a few data are available concerning the field of biomineralization.This chapter reviews our present knowledge and discusses the different theories on coral calcification, from the molecular to the reef level. Conclusion is presented in a list of key issues to be resolved in order to understand the intimate mechanisms of calcification of corals, essential to determine the origin of the sensitivity of corals to ocean acidification, to improve paleoceanographic reconstructions or coral reef management, or "just" to understand how genes of a soft organism control the formation of an extracellular 3D-skeleton.