S - spermatogenesis 中文

spermatogenesis n.精子發生。adj.-genetic

spermatogenous
Part 1 : identification of a novel gene , tsarg2 , and its sequence character cloning new apoptosis - related novel gene is a key to further understanding of apoptosis mechanism and the biological process of germ cell , and it is of momentous significance on clarifying physiology and pathology process of spermatogenesis . to rapidly attain human novel gene full - length cdna sequence , the gene - specific primers and the vector - specific primers have been designed for successful performing nested pcr and draft human genome searching to rapidly identify the tsarg2 ( genebank accession number ay040204 ) 5 “ end from a human testis cdna library by using a cdna fragment ( genebank accession number be644542 ) as a electronic probe , which was significantly changed in cryptorchidism and represents a novel gene . furthermore , a mouse homologue of this gene was identified ( genebank accession number af395083 ) by lab on - line 本研究分為三個部分，其主要實驗方法及實驗結果如下：第一章tsarg2基因的克隆與序列分析從已獲得的在隱睪和正常睪丸對照中表達量有明顯差異的est片段( be644542 )入手，設計了基因特異性引物和載體特異性引物進行巢式pcr擴增，結合人類基因組草圖搜索法，從睪丸cdna文庫中快速分離出人類睪丸凋亡相關基因的5末端而獲得全長cdna ， genbank登錄號為ay040204 ，同時應用生物信息學的方法克隆了該基因在小鼠中的同源基因， genbank登錄號為af395083 。
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，并以期精巢過冬.貯精囊在生殖季節分泌活動旺盛，產生大量分泌物
The result shows that sperm ultrastructure , spermatogenesis , oogenesis and mature oocyte structure all have the characteristics unique to palaemon modestus . therefore , my researches ca n ' t only enrich the contents of reproductive biology in crustacean but also provide basic references for pond culture in palaemon modestus 結果顯示：秀麗白蝦精子結構、精子發生過程、卵子發生過程、成熟卵結構均有種的特屬性，從而本研究不僅可以豐富甲殼動物生殖生物學內容，同時也可為秀麗白蝦人工養殖提供基礎資料。
In this paper , the comparison of spermatogenesis and spermatozoal ultrastructures of four species of decapoda were investigated by electron microscopy ( tem ) . we had tried to find structural variaton between the four species during their spermatogenesis . from this comparison study , we can pursue the evolution route of the four decapods 本論文采用透射電鏡技術比較研究十足目( decapoda )物種浙江華溪蟹( sinopotamonchekiangense ) 、三疣梭子蟹( portunus ， trituberculatus ) 、脊尾白蝦( exopalarmoncarinicandaholthuis )及羅氏沼蝦( macrobrachiumrosenbergii )的精子發生和精子結構。
These results suggest that kyot plays an important role in the development of testis and spermatogenesis . 2 we performed yeast two - hybrid screening of a cdna library from human lymph nodes using kyot2 as a bait protein . 42 clones were gotten after 5xl06 were screened by four kinds of nutrition limitation and p - galactosidase assay , 22 clones were got after restriction of positive clones , at last , 13 genes were got by sequence assay including rbp - j known as the interacting protein with kyot before and two novel genes 對此22個克隆進行序列分析，共獲得13種基因，其中包括已知的kyot相互作用蛋白rbpj和兩個未知基因，也包括在哺乳動物睪丸中特異3第四軍醫大學博士學位論文性表達的蛋白piasi ，同時還篩到了具有可與lm結構鞠互作用的pdzdomain分子緊密連接蛋白2和兩種同屬于kg家族的蛋白ringi和polycomb2
Studies on spermatogenesis and oogenesis in palaemon modestus jiang ye - qin ( chemistry department , huzhou teachers coliege , huzhou 313000 ) palaemon modestus belongs to genus palaemon , family palaemonidae , caridea , natantia , decapoda , class crustacean . lt is a kind of freshwater prawn across china and especially abounds in the taihu lake which is regarded as one of the “ three delicacies “ of the taiha lake . as for the researches on palaemon modestus , v / e can only refer to spermatogenesis of freshwater shrimp exopalaemon modestus ^ ruang hai - xia et al , 2001 ) , studies on reproductive biology of exopalaemon modestus l . the structure and development of the male reproductive system ( huang hai - xia et al , 1999 ) and studies on freshwater prawn in the taihu lake ( yan sheng - liang , 1999 ) . on the bases of their researches and with the help of tem , i have made further researches on sperm ultrastructure , spermatogenesis , oogenesis and mature oocyte ultrastructure in palaemon modestus 秀麗白蝦palaemonmodestus屬甲殼綱crustacea十足目decapoda游泳亞目natantia真蝦部caridae長臂蝦科palaemonidae長臂蝦屬palaemon ，是我國南北均產的淡水蝦，其中太湖產量尤其大，與太湖銀魚、鱭魚并稱“太湖三寶” 。有關秀麗白蝦的研究僅見秀麗白蝦雄性生殖系統的研究(黃海霞等， 1999 ) 、秀麗白蝦精子發生的研究(黃海霞等， 2001 ) 。本人在前人工作的基礎上，利用透射電鏡技術( tem )進一步研究了秀麗白蝦精子的形態、結構及精子的發生過程，同時還研究了秀麗白蝦卵的發育過程，從卵原細胞到卵黃發生前的卵母細胞、卵黃發生的卵母細胞及成熟卵細胞，各期卵細胞的形態結構特點及各部分結構的變化情況。
In view of its high economic values , the author studied the ultrastructure of the mature sperm and spermatogenesis of cipangopaludina chinensis in order to supply the basic materials of the reproductive biology of cipangopaludina chinensis 鑒于其較高的經濟價值，作者運用光鏡、電鏡和細胞化學方法，對中國圓田螺成熟精子和精子發生的超微結構進行研究，以期為中國圓田螺的繁殖生物學研究提供基礎資料。
Many foreign scholars and a few chinese scholars have studied the ultrastructure of the mature sperm and spermatogenesis of gastropod ; however , nobody has studied the ultrastructure of the mature sperm and spermatogenesis of cipangopaludina chinensis 關于腹足類軟體動物精子和精子發生的超微結構，國內研究甚少，國外研究較多；但有關中國圓田螺精子和精子發生的超微結構的研究，尚未見報道。
P and pr have relationships with spermatogensis and sperm maturation . 6 . the product of c - fos translocates from the cytoplasm of spermatogonia to nuclei of spermatogonia , then it induces the transcription of dna and regulate spermatogonial proliferation and spermatogenesis C fos產物從精原細胞胞質中轉移到胞核中后通過啟動dna的轉錄而調控精原細胞的增殖，從而促進精子發生的進程。
Cloning new apoptosis related novel gene is a key to further understanding of apoptosis mechanism and the biology process of germ cell , and it is of momentous significance on clarifying physiology and pathology process of spermatogenesis 而克隆新的特異性的睪丸凋亡相關基因是進一步了解生殖細胞凋亡機制和生物學過程的關鍵所在，對闡明精子發生的生理、病理具有重要意義。
Reproductive biology with focus on the role of reproductive tract epithelia in spermatogenesis & sperm maturation , fertilization and implantation is one of the major research directions of the centre 上皮細胞生物學研究中心其中一個重點研究項目是生殖生物學，包括與精子發生、成熟、受精與植入有關的生殖器官上皮細胞功能。
4 . e2 triggers directly spermatogenesis through genomic action and effects the steriodogenesis of interstitial cell by negative feedback via follicular cells 在兩棲動物， e _ 2可能也通過支持細胞對間質細胞的功能進行負反饋調節，進而影響t的產生。
Spermatogenesis is the major function of adult testis . many genes specifically and / or highly expressed in this tissue are involved in this process 精子發生是成年睪丸的一項重要的功能，許多在睪丸中特異性和或高度表達的基因參與完成這一過程。
Male rats and mice with chemically induced folate deficiency have impaired spermatogenesis and are infertile 要是以化學方法使雄性大鼠與小鼠體內缺乏葉酸， ?們制造精子的機制就不能正常運作，因而喪失生殖能力。
Pink leyding cells are seen here in the interstitium . note the pale golden brown pigment as well . there is active spermatogenesis 間質組織中可見粉紅色的間質細胞。同時可見淡黃*色褐色素。那里正有精子形成。
Mammalian spermatogenesis is a complex process in which spermatogenic cells undergo differentiating and giving rise to spermatozoa 在曲精小管中的生精細胞經過漫長的分化過程，最終生成精子。
The results showed that this gene performs function by different expression in different stages of spermatogenesis cell Ti u基因在21天小鼠睪丸內開始表達，以后表達水平趨于穩定。
C - myc , as a nuclear transcription factor , can influences spermatogenesis through inducing the transcription of dna Ewe也是作為核轉錄因子通過誘導dna的轉錄而調控精子的發育過程。
Ultrastructural aspects of plasmodesmata and cytoplasmic bridges during spermatogenesis in funaria hygrometrica 葫蘆蘚精子發生過程中胞間連絲與胞質橋的超微結構

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spermatogenesis

spermatogenesis n.精子發生。adj.-genetic

spermatogenous

4 . e2 triggers directly spermatogenesis through genomic action and effects the steriodogenesis of interstitial cell by negative feedback via follicular cells 在兩棲動物， e _ 2可能也通過支持細胞對間質細胞的功能進行負反饋調節，進而影響t的產生。

Spermatogenesis is the major function of adult testis . many genes specifically and / or highly expressed in this tissue are involved in this process 精子發生是成年睪丸的一項重要的功能，許多在睪丸中特異性和或高度表達的基因參與完成這一過程。

Male rats and mice with chemically induced folate deficiency have impaired spermatogenesis and are infertile 要是以化學方法使雄性大鼠與小鼠體內缺乏葉酸， ?們制造精子的機制就不能正常運作，因而喪失生殖能力。

Pink leyding cells are seen here in the interstitium . note the pale golden brown pigment as well . there is active spermatogenesis 間質組織中可見粉紅色的間質細胞。同時可見淡黃*色褐色素。那里正有精子形成。

Mammalian spermatogenesis is a complex process in which spermatogenic cells undergo differentiating and giving rise to spermatozoa 在曲精小管中的生精細胞經過漫長的分化過程，最終生成精子。

The results showed that this gene performs function by different expression in different stages of spermatogenesis cell Ti u基因在21天小鼠睪丸內開始表達，以后表達水平趨于穩定。

C - myc , as a nuclear transcription factor , can influences spermatogenesis through inducing the transcription of dna Ewe也是作為核轉錄因子通過誘導dna的轉錄而調控精子的發育過程。

Ultrastructural aspects of plasmodesmata and cytoplasmic bridges during spermatogenesis in funaria hygrometrica 葫蘆蘚精子發生過程中胞間連絲與胞質橋的超微結構