菲菊头蝠冬眠期的精子储存  

Sperm storage in least horseshoe bat during hibernation on Hainan Island

作　　者：陈忠[1] 韩文文[1] 张述才[1] 李玉春[1] 

机构地区：[1]海南省热带动植物生态学重点实验室海南师范大学生物系,海口571158

出　　处：《兽类学报》2007年第3期229-233,共5页Acta Theriologica Sinica

基　　金：海南省教育厅重点基金资助项目(HJKJ200521)

摘　　要：菲菊头蝠是分布于亚热带和热带的翼手目种类,在中国大陆南部和海南岛有广泛分布。为探讨热带菲菊头蝠是否具有冬眠期(12月至翌年2月)储精现象及生殖腺组织结构的变化,对海南岛的菲菊头蝠成年雄蝠和成年雌蝠生殖系统在冬眠期间的变化进行了石蜡切片观察。结果显示:成年雄蝠在冬眠期间附睾内储存大量精子,推测其储存时间超过2个月;冬眠期间曲细精管横截面积、精子细胞数量和间质细胞数量在冬眠期逐月显著性减少,精原细胞和精母细胞的数量在12月与翌年1月间均无显著性变化,而在冬眠末期的2月显著增多。在雌蝠子宫和卵巢内均未发现精子储存现象,但卵巢内具有初级卵泡和次级卵泡,雄蝠在冬眠期间曲细精管逐月萎缩,但生精上皮精母细胞的数量在冬眠末期明显上升。Least horseshoe bat（Rhinolophus pusillus） occurs in subtropical and tropical regions including the southern part of the mainland and Hainan Island in China.In order to examine sperm storage in least horseshoe bat during hibernation in Hainan Island,we collected adult male and adult female least horseshoe bats in hibernation to observe sperm storage in testis and epididymis of males,and ovary and uterus of females.During the hibernation,males stored sperm in epididymis for more than two months from December to February.The cross sectional areas of seminiferous tubules,spermatids,and leydig cells significantly decreased.Spermatogonium and spermatocyte did not significantly change between December and January,but significantly increased in February.However,female bats did not store sperm in their ovary and uterus.The seminiferous tubule of male bat shrank during hibernation but spermatogonium of spermatogenic epithelium increased significantly at the end of hibernation.Primary and secondary follicles were found in the ovaries of female bats during hibernation.

关 键 词：菲菊头蝠 精子储存 冬眠 生殖腺 

分 类 号：Q494[生物学—生理学]