嘉庚蛸雌性生殖系统组织学观察  

Histological Study of Reproductive System of the Female Octopus tankahkeei

作　　者：焦海峰[1,2] 彭小明 尤仲杰[1,2] 施慧雄 

机构地区：[1]宁波市海洋与渔业研究院,宁波315012 [2]宁波大学生命科学与生物工程学院,宁波315211 [3]奉化市海洋与渔业局,宁波315500

出　　处：《动物学杂志》2011年第6期88-95,共8页Chinese Journal of Zoology

基　　金：国家科技支撑计划项目(No.2007BAD43B09);浙江省自然科学基金项目(No.1402039);浙江省科技厅项目(No.021103269)

摘　　要：对象山港自然海区中的嘉庚蛸(Octopus tankahkeei)雌性生殖系统的组织学结构进行了研究。结果表明,雌性生殖系统由卵巢、输卵管、输卵管腺组成。卵巢单个、球形,内包裹滤泡细胞围成的卵子,输卵管1对,开口于外套腔中部,每条输卵管中部膨大形成圆球状的输卵管腺。近端输卵管内具两瓣蘑菇状突起,上有不规则短指状分枝,突起嵌入管腔中,远端输卵管中无大的突起,血管位于突起和肌肉层之间。输卵管腺辐射型,由中央腔、纳精囊和输卵管腺体腔3部分构成,中央腔外层有24个大小不等的纳精囊。生殖季节,输卵管和纳精囊中可见大量未激活的精子。根据滤泡细胞形成褶皱的数目和比例对卵巢发育分期划分为4期:卵黄合成前期、卵黄合成早期、卵黄合成盛期和卵黄合成后期。The morphological structure of female reproductive system of Octopus tankahkeei was investigated from August,2002 to December,2003.The female reproductive system of O.tankahkeei,like many cephalopods,is composed of three parts morphologically： ovary,oviduct,and oviducal gland.The ovary is a single structure,which contains oocytes at different stages.The oocytes are surrounded by a layer of columnar follicle cells which enfold into the oocyte cytoplasm and their nuclei are arranged along the longitudinal axis of the cells.Different from proximal oviduct,mushroom-like protruding enwrapped by many finger-like folds lies in the distal oviduct.The oviducal gland can be divided into three parts： central lumen,spermathecaes,and gland tissue.The twenty-four spermathecaes are special parts in oviduct gland which contain spermatozoa after coupling.We propose to divide the ovarian cycle of O.tankahkeei into four phases： previtellogenesis,early vitellogenesis,full vitellogenesis,and late vitellogenesis phases.

关 键 词：嘉庚蛸 雌性生殖系统 卵子发生 性腺发育 

分 类 号：Q964[生物学—昆虫学]