Settlement and metamorphosis of Styela canopus Savigny larvae in response to some neurotransmitters and thyroxin

查看全文 作　　者：FENG [1,2,3]Danqing;HUANG [1,2,3]Ying;KE [1,2,3]Caihuan;ZHOU [1,2,3]Shiqiang;LI [1,2,3]Shaojing

机构地区：[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

出　　处：《Acta Oceanologica Sinica》索引2006年第25卷第3期,共8页

基　　金：This research was supported by the National Natural Science Foundation of China under contract Nos 40276041 and 49976034. 摘　　要：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 1μmol/dm 3 induced larval settlement and metamorphosis in S. canopus, with short exposure (1 h) to 1 μmol/dm 3 of L-DOPA inducing rapid settlement. In contrast, GABA at the concentrations of 0.1 ~100.0 μmol/dm 3 significantly inhibited the settlement and metamorphosis of S. canopus larvae. In addition, thyroxin at 1~50 μg/dm 3 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. 关键词：神经递质甲状腺素变态现象海洋生物

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Settlement and metamorphosis of Styela canopus Savigny larvae in response to some neurotransmitters and thyroxin

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