| Settlement and metamorphosis of Styela canopus Savigny larvae in response to some neurotransmitters and thyroxin |
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| 作者姓名： | FENG Danqing HUANG Ying KE Caihuan ZHOU Shiqiang LI Shaojing |
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| 作者单位： | FENG Danqing 1，2，3，HUANG Ying 1，2，3，KE Caihuan 1，2，3*，ZHOU Shiqiang 1，2，3，LI Shaojing 1，2，3 1.Key State Laboratory of Marine Environmental Science，Xiamen University，Xiaman 361005，China 2.Department of Oceanography，Xiamen University，Xiamen 361005，China 3.Institute of Subtropic Oceanography，Xiamen University，Xiamen 361005，China |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 1IntroductionAs importantsteps in the life cycles of mostma-rine benthos,settlement and metamorphosis of theirplanktonic larvae influence directly the populationdistribution and fluctuation of benthos.Research onlarval settlement and metamorphosis of mari…
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| 关 键 词： | 神经递质 甲状腺素 变态现象 海洋生物 |
| 收稿时间： | 2005-12-26 |
| 修稿时间： | 2006-03-28 |
Settlement and metamorphosis of Styela canopus Savigny larvae in response to some neurotransmitters and thyroxin |
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| FENG Danqing,HUANG Ying,KE Caihuan,ZHOU Shiqiang,LI Shaojing.Settlement and metamorphosis of Styela canopus Savigny larvae in response to some neurotransmitters and thyroxin[J].Acta Oceanologica Sinica,2006,25(3):90-97. |
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| Authors: | FENG Danqing HUANG Ying KE Caihuan ZHOU Shiqiang and LI Shaojing |
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| Institution: | Key State Laboratory of Marine Environmental Science, Xiamen University, Xiaman 361005, China;Department of Oceanography, Xiamen University, Xiamen 361005, China;Institute of Subtropic Oceanography, Xiamen University, Xiamen 361005, China |
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| Abstract: | The larvae of ascidian Styela canopus Savigny were treated with epinephrine, norepinephrine, L-DOPA, GABA and thyroxin to test the ability of these compounds to induce or inhibit larval settlement and metamorphosis. The results showed that epinephrine,norepinephrine and L-DOPA at the concentration of 1 μ mol/dm3 induced larval settlement and metamorphosis in S. canopus, with short exposure ( 1 h) to 1 μmoL/dm3 of L-DOPA inducing rapid settlement. In contrast, GABA at the concentrations of 0.1 ～100.0 μmol/dm3 significantly inhibited the settlement and metamorphosis of S. canopus larvae. In addition, thyroxin at 1 ～ 50μg/dm3 had no effect on larval settlement and metamorphosis in S. canopus. These results suggest the importance of neurotransmitters in the settlement and metamorphosis of S. canopus larvae. |
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| Keywords: | Styela canopus larvae settlement metamorphosis neurotransmitter thyroxin |
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