Natural inducers for coral larval metamorphosis
Natural inducers for coral larval metamorphosis
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DOI：
10.1007/s003380050193
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发表时间：
1999-09-01
期刊：
影响因子：
3.5
通讯作者：
Negri, AP
中科院分区：
文献类型：
--
作者：
Heyward, AJ;Negri, AP
珊瑚配子从鹿角珊瑚millepora（埃克林伯格，1834年）和多物种产卵浮油提供幼虫用于变态试验与选择的天然存在的诱导化学品。四种甲壳珊瑚藻、一种非珊瑚甲壳藻和两种分枝珊瑚藻诱导了幼虫变态。然而，另一种分支珊瑚藻没有产生幼虫反应。当幼虫暴露于大型珊瑚Goniastrea retiformis（Lamarck，1816）的骨骼和钙化的珊瑚礁碎石时，也观察到了变态，这表明在没有结壳藻类的情况下，变态是可能的。从这些藻类和珊瑚骨骼的化学提取物，使用脱钙或简单的甲醇提取程序，也含有活性诱导剂。这些结果扩展了已知的诱导珊瑚变态的甲壳藻类物种的数量，表明一些诱导剂可能不一定与钙化藻类密切相关。细胞壁，并表明诱导源在珊瑚礁栖息地可能比以前报道的更多样化。
Coral gametes from Acropora millepora (Ehrenberg, 1834) and from multi-species spawning slicks provided larvae for use in metamorphosis assays with a selection of naturally occurring inducer chemicals. Four species of crustose coralline algae, one noncoralline crustose alga and two branching coralline algae induced larval metamorphosis. However, one additional species of branching coralline algae did not produce a larval response. Metamorphosis was also observed when larvae were exposed to skeleton from the massive coral Goniastrea retiformis(Lamarck, 1816) and to calcified reef rubble, demonstrating metamorphosis is possible in the absence of encrusting algae. Chemical extracts from these algae and the coral skeleton, obtained using either decalcification or simple methanol extraction procedures, also contained active inducers. These results extend the number of crustose algal species known to induce coral metamorphosis, suggest that some inducers may not necessarily be strongly associated with the calcified algal. cell walls, and indicate that inducer sources in reef habitats may be more diverse than previously reported.