摘要
翡翠贻贝眼点幼体可被肾上腺素、间羟胺、麻黄碱和去甲肾上腺素诱导ｌｌ％～２６％的粘着率和１２％～２３％的变态率，而对照组无粘着和变态。诱导幼体粘着的活性顺序为麻黄碱＞间羟胺＞肾上腺素＞去甲肾上腺素，而诱导幼体变态的顺序为间羟肢＝肾上腺素＞麻黄碱＞去甲肾上腺素。肾上腺索、间羟胺和去甲肾上腺素可在２ｈ内诱导８０％以上的眼点幼体的附着行为反应，但麻黄碱在２ｈ内诱导的附着反应百分率很低，说明麻黄碱与另三种化合物在诱导幼体附着和变态的机制上有差异。幼体被药物诱导的粘着和变态多发生在作用后４８～９６ｈ之间。Ｌ－多巴、多巴胺和异丙肾上腺素无诱导幼体附着和变态的效应，药理学初步分析认为，调节翡翠贻贝幼体附着行为反应的受体为类似于脊推动物。肾上腺素受体。
The percentages of perna viridis larvae induced to attach and tometamorphose by epinephrine(EPI ),aramine(ARA),ephedrine(EPH)and noepinephrine(NE)were 11%～26%and 12%～23%, respectively. However no control larvae occurred toattach or metamorphose. The larval attachment can be induced bv the chemicals with relativiepotencies:EPH > ARA > EPI > NE. And the larval metamorphosis can be induced by thechemical with relative potencies: ARA = EPI > EPH > NE. Most of the settlement andmetamorphosis occured during 48～96 h. Over 80%of larvae exposured to EPI expressedsettlement behavior within 2h,but much fewer in EPH,suggestting two different settlementinducing mechanisms. No inductive effects were found in L-DOPA,dopamine and isoproterenol.Preliminery pharmacological analysis suggested that receptor mediating settlement behavior in P.viridis larvae was similar to vertebrate-type a_1-adrenoceptor.
出处
《厦门大学学报（自然科学版）》
CAS
CSCD
北大核心
1995年第6期975-981,共7页
Journal of Xiamen University：Natural Science
基金
国家教委博士点专项基金和国家自然科学基金
