| 许星鸿,阎斌伦,郑家声,王刚,成凯.2008.长蛸生殖系统的形态学与组织学观察.动物学杂志,43(4):77-84. |
| 长蛸生殖系统的形态学与组织学观察 |
| Morphology and Histology of the Reproductive System in Octopus variabilis |
| 投稿时间：2007-11-26 修订日期：2008-04-27 |
| DOI： |
| 中文关键词: 长蛸 生殖系统 形态学 组织学 |
| 英文关键词:Octopus variabilis Reproductive system Morphology Histology |
| 基金项目:淮海工学院自然科学基金项目(No.Z2005017) |
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| 中文摘要: |
| 运用解剖学和组织学方法对长蛸(Octopusvariabilis)生殖系统的形态结构进行了研究。结果表明,长蛸雌雄异体并异形,雄性右侧第三腕茎化。长蛸雌性生殖系统由一个卵巢、成对的输卵管及输卵管腺组成。卵巢壁上发出一条线状具分支的生殖索,米粒状的滤泡以卵柄连接至生殖索上。每个滤泡是由单层滤泡细胞围绕着一个卵母细胞构成。输卵管形成丰富的纵行褶皱,黏膜上皮具有纤毛。输卵管腺含有两种类型腺细胞。雄性生殖系统包括精巢、输精管前段、储精囊、摄护腺、盲囊、输精管后段和精荚囊。精巢内部被结缔组织分隔成许多精小叶,精原细胞由小叶壁中的生殖上皮产生,并向小叶腔中逐步分化成精子。输精管前段、盲囊和摄护腺所分泌的黏液物质共同参与精荚的形成。储精囊和输精管后段形成较多的纵行褶皱,输精管后段上皮游离面的纤毛可运输生殖细胞。精荚囊的作用则是贮存精荚,囊壁中的平滑肌利于长蛸交配时精荚的排出。 |
| 英文摘要: |
| The structure of reproductive system in Octopus variabilis was studied by anatomical,histological and histochemical methods.O.variabilis is diecious and antigeny.The third right arm of male O.variabilis is hectocotylized. The female reproductive system of O.variabilis is composed of one ovary,a pair of oviducts and oviducal glands.Sexual cord from the ovarian wall is linear and branched with many follicles connected to egg pedicle.Each follicle is made up of one oocyte surrounded by monolayer follicular cells.Oviduct exhibits abundant longitudinal ridges and its epithelial lining is simple ciliated columnar epithelium.The glandular epithelium of oviducal gland is formed by two types of cells: gland cells Ⅰ are bigger and their nuclei are circinal and big also; gland cells Ⅱ are irregular and their nuclei are spindly and anachromasis.The male reproductive system of O.variabilis contains spermary,front deferent duct,sperm capsule,accessory gonad,blind sac,back deferent duct and spermatophore.The spermary is divided into many foliolia by connective tissue.The spermatogenetic cells from the wall of foliolum transform into spermatozoa in the foliolar cavity gradually.The front deferent duct,blind sac and accessory gonad can also secret much mucosubstances to form spermatophore.There are many longitudinal ridges in the sperm capsule and the back deferent duct.The cilia distributing on the free end of the back deferent duct epithelium play an important role in transporting germ cells.The main function of the spermatophore sac is to stockpile the spermatophore.The smooth muscle of the spermatophore sac wall can help to release the spermatophore at the time of copulation. |
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