摘要
鱼类松果体是传达外界信息到体内的主要传感器之一,其分泌的褪黑激素与鱼类生殖活动密切相关.为了阐明大弹涂鱼松果体形态结构与其功能的关系,运用组织细胞学方法研究了大弹涂鱼松果体的形态结构.结果表明,大弹涂鱼松果体位于端脑和中脑之间,由松果体柄和终囊两部分组成,具有背囊结构.松果体柄细长,细胞排列紧密,柄中有空腔,开口与第三脑室相通;松果体终囊膨大成梨形,且有空腔,腔内有皱褶,终囊顶部表面有黑色素细胞;背囊位于终囊下方,形状不规则,其囊壁向囊腔内反复折叠,形成许多复杂、盘旋曲折的内褶,背囊内部可见血细胞.研究结果为将来揭示大弹涂鱼半月周期产卵的机制提供了基础资料.
Pineal gland is a transducer that transmits environmental message to the brain in fishes.It produces melatonin to regulate fish spawning behaviors.In order to elucidate the relationship between the structure and functions of the pineal gland in the mudskipper（Boleophthalmus pectinirostris）,the morphological structure of pineal organ of the mudskipper was studied using histocytology.Results showed that pineal organ of the mudskipper located between telencephalon and midbrain,was composed of pineal stalk and pineal vesicle,and had a dorsal sac.The pineal stalk was long and thin in shape,the cells arrangement was tight,and there was a cavum in the middle of the stalk.The opening of pineal organ was connected with the ventriculus tertius.Pineal vesicle was expanded as a pear in shape and had a cavum with rugas inside.The top surface of the vesicle was covered by melanophore.The dorsal sac lied under the pineal vesicle and was irregular in shape with a cavum.The inner wall of the sac cavum had many complicated,spiral and tortuous emboles.The blood cells were visible inside the dorsal sac.The data from the present study will be useful to future research on the mechanisms of spawning with semilunar periodicity in the mudskipper.
出处
《厦门大学学报（自然科学版）》
CAS
CSCD
北大核心
2011年第6期1087-1090,共4页
Journal of Xiamen University：Natural Science
基金
国家自然科学基金项目(40976095)
福建省科技计划重点项目(2008N0041)
关键词
大弹涂鱼
松果体
形态结构
组织学
B.pectinirostris
pineal organ
morphology
histology
