| 几种化学物质对两种牡蛎幼虫附着和变态的诱导 |
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| 引用本文： | 方琦,林笔水,方永强.几种化学物质对两种牡蛎幼虫附着和变态的诱导[J].台湾海峡,2001,20(1):20-26. |
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| 作者姓名： | 方琦 林笔水 方永强 |
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| 作者单位： | 国家海洋局第三海洋研究所, |
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| 基金项目： | 福建省重中之重资助项目 |
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| 摘 要： | 本文研究5种神经递质和1种神经肽对两种牡蛎幼虫附着和变态的诱导效应。结果表明：L－多巴对牡蛎幼虫附着行为的诱导快速而有效，浓度10μmol/dm^3，2h内有附着行为的幼虫约占50％，并使之正常变态，肾上腺素、去甲肾上腺素和L－多巴均能有效地诱导两种牡蛎幼虫变态，它们的最适诱导浓度分别为50、50和5μmol/dm^3，诱导变态率分别达97．1％、90．6％和70．5％（长牡蛎），74．9％、74．3％和37．2％（僧帽牡蛎）；多巴胺的诱导变态效果不显著，而γ－氨基丁酸和5－羟色胺不能有效诱导变态。两种牡蛎幼虫对上述有效诱导药物的反应，长牡蛎优于僧帽牡蛎。肾上腺素诱导长牡蛎，最适处理时机在眼点幼虫后期，持续处理时间为2h之内。
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| 关 键 词： | 肾上腺素 化学诱导 附着 长牡蛎 僧帽牡蛎 幼虫 L－多巴 |
| 文章编号： | 1000-8160（2001）01-0020-07 |
Induction of larval
settlement and metamorphosis of two oysters Crassostrea gigas and Ostrea cucullata by some
chemicals |
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| FANG Qi,LIN Bi-shui,FANG Yong-qiang.Induction of larval
settlement and metamorphosis of two oysters Crassostrea gigas and Ostrea cucullata by some
chemicals[J].Journal of Oceanography In Taiwan Strait,2001,20(1):20-26. |
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| Authors: | FANG Qi LIN Bi-shui FANG Yong-qiang |
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| Abstract: | Five neurotransmitters and a neuropeptide were examined for induction of settlement and metamorphosis in larvae of two oysters Crassostrea gigas and Ostrea cucullata.The results indicated that L-3,4-dihydroxyphenylalanine(L-DOPA)inductive settlement behavior was rapidly effective with about 50% larvae at concentration 10μmol/dm3 within 2h,subseequently made them metamorphosis.Epinephrine (EPI) norepinephrine (NE) and L-DOPA were effctive to induce larvae metamorphosis，at optimal inductive concentration 50,50 and 5μmol/dm3 respectivitly,given 97.1%,90.5% and 70.5% metamorphosis for C.gigas and 74.9%,74.3% and 37.2% for O.cucullata.Incontrast,γ-aminobutyric acid and 5-hydroxytryptamine were ineffective.Responses of C.gigas metamorphosis to chemical induction was more active than O.cucullata.By examining EPI to C.gigas,it was indicated that inductive occasion was at post eyed-larvea for exposure treatment within 2h. |
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| Keywords: | Chemical induction settlement metamorphosis Crassostrea gigas Ostrea cucullata |
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