精巢魚的 的英文怎麼說
中文拼音 [jīngcháoyúde]
精巢魚的
英文
soft roe-
The damages of monocrotophos on tnicrostructure of testis were that it caused the deficiency of ground membrane, hypertrophied leydig cell and spermatogenous. besides, the y - gtp activity was inhibited by monocrotophos
久效磷對金魚精巢組織結構的破壞主要表現為：精小葉基膜斷裂； leydig氏細胞出現肥大現象；精原細胞膨脹。In this paper, we selected a widely used organophosphorous pesticide - - monocrotophos, used goldfish as model animal, and chose the vitellogenin induction of male fish as the main indicator, - gtp of sertoli cell in testes, the changes of microstructures of testis and ultrastructures of pituitary and testis as assistant indicators, we finally built up a screening system to effectively detect the environmental estrogen effect of organophosphorous pesticides, and reported that the monocrotophos had the activity of environmental estrogen for the first time in the world
因此，本文選擇國內廣泛使用的有機磷農藥? ?久效磷，以金魚為模型生物，以雄性金魚卵黃原蛋白產生、精巢支持細胞- gtp酶活性，並輔以生殖軸線器官? ?垂體和精巢超微結構的變化，在國內首先建立了有機磷農藥環境雌激素效應的篩選體系，並首次確認久效磷具有環境雌激素活性。The females and males of f _ 9 - f _ 12 possessed, respectively, the normal ovaries and testes that were able to produce the normal dipoid ova and sperm, respectively
在這三代四倍體魚中它們仍然保持有正常的卵巢和精巢，能夠分別形成正常的二倍體卵子和二倍體精子。The full length cdnas of 17 - hsd1 and 17 - hsd3, 17 - hsd8 were obtained by library screening and race, respectively. expression patterns ( tissue distribution ) of three types 17 - hsds were checked by rt - pcr and northern blot. the recombinant constructs of 17 - hsdl / pet blue2 and 17 - hsd8 / pcdna 3. 1 were made and subsequently transformed into the corresponding host expression cell of ( de3 ) placi and mammalian hek 293 cell
首先從genebank下載在其他脊椎動物中已被克隆17 - hsd1 ， 17 - hsd3的氨基酸和核甘酸序列，並在序列保守區域設計簡並引物，然後分別以羅非魚卵巢和精巢cdna為模板進行rt - pcr擴增得到17 - hsd1 ， 17 - hsd3的中間片段。The testes of pseudobagurs fulvidraco ( richardson ) can be divided into two parts. the anterior part is spermatogenic part where spermatogenesis proceed. the posterior part of it is the seminal vesicle, which can store sperms and produce large amount of fluid during spawning season. at the end of april, the spermatogenic part of the testes, which is at stage, begin the initiation of spermatogenesis. in may, the spermatogenic part of the testes, which is at stage ， starts active spermatogenesis. from june to novermber, the spermatogenic part is at stage, and spermatogenesis is actively proceeding. from december to the beginning of next april, the spermatogenic part is at stage. the wall of the lobulus is made up of cystes of spermatogonia throughout the whole winter time
黃顙魚的精巢從外形上分為上、下兩段.上段為生精部，下段為貯精囊.性成熟黃顙魚精巢的生精部為小葉型結構，其周年變化經歷如下過程：期?期?期?期?期. 4月下旬開始生精活動的啟動.生殖季節為5 7月， 5月生精部處于期. 6 7月生精部處于期，產生大量精子. 8 11月雖非生殖季節，生精部仍進行生精活動. 12月至翌年4月，生精部處于期，並以期精巢過冬.貯精囊在生殖季節分泌活動旺盛，產生大量分泌物分享友人