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钱静,沈和定,管菊.2015.平疣桑椹石磺生殖系统结构及精子储存场所.动物学杂志,50(4):600-606.
平疣桑椹石磺生殖系统结构及精子储存场所
Study on the reproductive system and sperm transport way of Platevindex mortoni
投稿时间:2014-05-06  修订日期:2015-05-13
DOI:DOI: 10.13859/j.cjz.201504012
中文关键词:  平疣桑椹石磺  生殖系统  精子运输
英文关键词:Platevindex mortoni  reproductive system  sperm transport
基金项目:国家自然科学(30972259和41276157)资助。
作者单位E-mail
钱静 上海海洋大学 水产与生命学院 qj8023@126.com 
沈和定 上海海洋大学 水产与生命学院 hdshen@shou.edu.cn 
管菊 上海海洋大学 水产与生命学院  
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中文摘要:
      解剖并观察了平疣桑椹石磺的生殖系统,其生殖系统包括两性腺、蛋白腺、黏液腺及雌雄生殖部分。雌性生殖部分包括输卵管、受精囊和阴道;雄性生殖部分包括输精管、支囊和阴茎。对比发现其雄性生殖部分与瘤背石磺有明显差异,瘤背石磺阴茎为螺旋状,有雄性附属腺而平疣桑椹石磺阴茎为直线状,无雄性附属腺。解剖发现未交配的性成熟个体支囊内充满细长精子,受精囊内无精子而交配后的充当雌性的石磺个体支囊内均为细长的自体精子,受精囊内有大量活力较强的粗短精子,表明支囊为自体精子的存储场所而受精囊为异体精子存储场所。深入研究输精管和雄性交接器,阐述了石磺交配时精子的具体运输途径:两性腺内精子成熟后暂时存储于支囊,交配时通过输精管运输至阴茎,由阴茎输送至对方的阴道,进入受精囊,待卵细胞成熟后于受精囊内完成受精。
英文摘要:
      The reproductive system of Platevindex mortoni has been observed and studied in detail. The reproductive system is mainly composed of hermaphroditic gland, albumen gland, mucous gland, female reproductive system and male reproductive system. The female reproductive system was consisted of oviduct, spermatheca and vagina, and the male reproductive system was included vas deferens, seminal vesicle and penis. Compared with the reproductive system of Onchidium struma, find that they have some difference in the male reproductive system, the O. struma have a spiral penis with accessory penial gland while the Platevindex mortoni have a straight penis without any accessory gland. The anatomy of un-copulation individuals, find that their seminal vesicle were full of slender spermatozoa, while the spermatheca without any spermatozoa. The result shows that the mature own-spermatozoa were store in seminal vesicle. Anatomy of the copulationed individuals which act as a female role, their spermatheca were full of moving stubby spermatozoa, the result shows that the spermatheca were the place where donor- spermatozoa store. Vas deferens and male mating organ were observed in detail, and the transportation route of spermatozoa was also analyzed. The mature spermatozoa were transferred by hermaphrodite duct from hermaphroditic gland to seminal vesicle, then convey via vas deferens to penis, during the copulation, penis transport the spermatozoa to the vagina, finally enter spermatheca, when ova matured, transferred by oviduct to spermatheca, the sperm fertilized ova in the spermatheca.
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