雌化 的英文怎麼說

Studies and application parthenogenesis breeding of dwarf and abortive wheat induced by chemical

化學誘導矮敗小麥孤雌生殖育種的研究與應用

It lasted for more than four months from initiation of the ovulate strobilus to formation of anatropous ovules

從雌球果原基發生到胚珠分化歷時4個多月。

Estrogens are synthesized from androgens through the activity of aromatase

雌激素通過芳香化酶作用由激素合成而來。

When the gametes are readily distinguished as male or female, other therms may be used such as antheridium, archiegonum, or oogonium

配子很快地分化為雌性或雄性以後，其他的細胞會形成如精子囊，頸卵器，卵囊等器官。

The female gametophyte is reduced, but larger than in angiosperms ; it is not autotrophic

裸子植物的雌配子體簡化，但較被子植物體的體積大，不能自養。

A genetic transformation model for the brown seaweed undaria pinnatifida has been primarily set up by using micro - particle bombardment as the method, female or male gametophytes as the gene recipients, hybridization as the regeneration route and chloramphenicol, hygromycin or basta as selective reagents

本文從轉化受體、轉化方法、報告基因、再生途徑、篩選方法等方面對裙帶菜的遺傳轉化進行了研究。首先，分離並建立了裙帶菜雌雄配子體的無性繁殖系，進行了裙帶菜的不同再生途徑的研究。

The spermatozoids of primitive plants are often positively chemotactic, swimming toward the female organs in response to a chemical secreted by the latter

較原始的植物的游動精子有正向的趨化現象，總是游向由雌性器官所分泌的物質。

On the basis of foreign documents, the dissertation firstly describes the morphology, taxonomy, and biological characters of cochineal insects. then, by using artificial climate cases in the lab, according to orthogonal design, 8 lands of combinations of temperature, humidity and light is set, while the temperature has four levels : 15, 20, 25 and 30, and the relative humidity has two levels : 60 % and 80 %, while the light also has two levels : 980 lux and 60 lux. through observations and analysis of hatching percentage, survival percentage of the first instar and during from the second instar to the adult, the population tendency index, generation life cycle, size and eggs of female adult, the development of the cochineal under different conditions is studied

在收集、整理國外對胭脂蟲的研究資料基礎上，首先從胭脂蟲的形態學、分類學、生物學特性入手，進而在實驗室內利用人工氣候箱，應用正交設計方法，設計了4種溫度、 2種濕度、 2種光照梯度的不同組合，通過測定胭脂蟲的孵化率、 1齡若蟲的存活率、 2齡若蟲至成蟲期存活率、種群趨勢指數、世代歷期、雌成蟲的大小、懷卵量等生物學指標，深入研究胭脂蟲在這些組合下的生長發育狀況，應用數理統計方法，分析出溫度、濕度和光照對各項生物學指標的影響，找出胭脂蟲適宜的室內培育條件，並為野外胭脂蟲的培育提供一定的理論依據。

This is so because climbing plants are likely to encounter intensive - changing environmental condition during their growth ( especially change of illumination ). secondly, there is a large proportion ( 30 - 40 % ) of climbing plants which belong to dioecism, and hence a gap between male and female plants on morphology, biological characteristic, economic value and so on. this dissertation focuses on herbaceous climbing plants, perennial or annual species such as dioecious trchosahthes kirilowii maxin and dioscorea opposita thumb, and monoecious luffa cylindrical ( l ) roem, it attempts to discover how climbing plants adapted to various environments and the mechanism of adaptation from aspects of physiological and reproductive ecologies at present, due to overuse of chlorofluorocarbons ( cfcs ), the ozonosphere has become thinner and thinner, and the ultraviolet - b ( uv - b ) radiation has increased considerably

而攀援植物本身是一類理想的植物行為生態學研究材料：第一，攀緣植物由於受攀緣能力和支柱木資源的限制，在生長過程中通常要遇到強烈變化的環境條件（特別是光照） ；第二，攀緣植物中具有較高比例的雌雄異株類型，通常佔地區攀緣植物種類的30 40左右，不同性別的植物在形態學及生物學特性、經濟價值等方面存在一定的差距，因此，本文以雌雄異株攀緣植物栝樓（ trchosahtheskirilowiimaxim ） （葫蘆科多年生草質藤本植物）和山藥（ dioscoreaoppositathunb ） （薯蕷科薯蕷屬植物） 、雌雄同株異花攀緣植物絲瓜[ luffacylindrical （ l ） roem ] （葫蘆科一年生攀緣草本植物）為材料，試圖從生理生態學及生殖生態學角度揭示攀援植物如何適應不同生境及其機理。

Objective to investigate the effects of fluid shear stress on il - 8 gene in human umbilical vein endothelial cells ( huvecs ) and the roles of time course of low shear stress and intensity of fluid shear stress using lightcycler ? system ; to investigate the gene expression profiles in huvecs exposed on low shear stress ( 4. 20 dyne / cm2, 2 h ) and incubated by 17 p - estradiol ( 10 - 7 m ) + low shear stress ( 4. 20 dyne / cm2, 2 h ) using the cdna microarray approach. methods endothelial cells were isolated from human umbilical cord veins by collagenase treatment as described by jaffe and modified

目的探討人臍靜脈內皮細胞（ humanumbilicalveinendothelialcells ， huvecs ）在流體切應力作用下il - 8基因的誘導表達以及切應力的作用時間和作用強度對il - 8基因表達影響的變化規律；利用表達譜基因晶元技術研究內皮細胞在低切應力（ 4 . 20dyne cm ~ 2 ， 2h ）作用下其切應力相關基因的表達情況以及生理濃度（ 10 ~ （ - 7 ）的17 -雌二醇孵育內皮細胞48h ，再經同樣條件的切應力處理后對內皮細胞切應力相關基因表達的可能影響。

Adults will visit flowers, mating and find hostplant aristolochia kaempferi after eclosion. the active time of adults is from 9 : 00 a. m. to 18 : 00 p. m.,

雌蝶羽化后就近訪花、交尾，尋找寄主植物馬兜鈴產卵、雌蟲孕卵量為18 - 20粒；飛行緩慢，反應遲鈍，相對容易捕捉。

Urinary estradiol and progesterone dynamics in captive asian elephants elephas maximus

圈養亞洲象尿液中雌二醇和孕酮含量的周期性變化

Estriol e 3

活化雌三醇e

Study on the microbial transformation for producing estrone

微生物轉化法制備雌酮的研究

Many studies show that leafy is high homolog even among distantly related plant species. exception of these, little studies on tissue culture and transformation of ginkgo have been done. this paper emphasizes on the isolation, cloning and analysing two ginkgo orthologs of leafy from the male tree

為此，本實驗從銀杏leafy同源基因的克隆入手，分析其雌雄株lfy基因結構差異，構建lfy基因的植物正義反義表達載體，建立矮牽牛遺傳轉化體系，以研究銀杏lfy同源基因的功能，同時建立了銀杏組織培養體系，為銀杏的遺傳轉化和提早開花結果奠定基礎。

To explain this, biologists have theorised that these females are mating with males who are genetically superior to their regular mates, thus getting the benefit of parental assistance from a cuckold and good genes from a lothario

為了解釋這種現象，生物學家們理論化地講道，這些雌性與其它一些雄性進行交配是因為它們比自己的正常配偶更具有優秀的遺傳能力，這樣雌性土撥鼠不僅能夠得到雄性土撥鼠對幼畜的照料，同時又能得到洛斯里奧的優良基因。

From an evolutionary perspective, monogamy looks good for females and bad for males

從進化的角度來講，單配製有利於雌性，而對雄性卻不然。

Estrogen ( e2 ) is one of the steroid hormones, which is mainly synthesized and secreted by the gonad affecting proliferation, differentiation and function exerting of target tissues. circumferential estrogens were mainly produced by ovary and spermary, and the brain estrogens came mostly from hypothalamus, neurons of limbic system and neuroglias

雌激素四）是由芳香化酶催化雄激素轉化而來的，它影響靶組織的生長分化和功能發揮，外周雌激素主要由卵巢、睪丸產生，腦內主要由下丘腦、邊緣系統的神經元和神經膠質細胞產生。

Scientists believe female hormones in sewage, such as oestrogen from the contraceptive pill, and chemicals are to blame

科學家認為，那些避孕藥中的雌激素和化學藥品是造成魚類性別畸形的罪魁禍首。

Provided with additional fresh hosts at emergence and the early stage of adult, the females showed no increased preference to volatiles in the y - tube olfactometer

羽化期和成蟲初期是否投放新鮮寄主，對雌蜂的氣味選擇性沒有明顯的影響。