雄配子體 的英文怎麼說
中文拼音 [xióngpèizitǐ]
雄配子體
英文
male gametophyte-
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。In order to understand the mechanism of spermatozoa living in the spermatheca after copulation, hematoxylin - eosin dyeing method is used to discover the microstructure of the spermatheca by light microscope
為進一步了解雌雄個體交配后精子在受精囊內的存活的機制,採用h - e法,在光鏡水平上研究了受精囊的顯微結構。In many organisms the male and female gametes are different.
很多生物體中雄配子與雌配子是不同的。A study on the development of the anther and the male gametophyte in
單穗升麻的花藥和雄配子體發育The megasporogenesis and microsporogenesis of phytolacca acinosa roxb. and formation of its male and female gametophytes
商陸大小孢子的發生和雌雄配子體的形成The present paper deals with the microsporogenesis and the development of its male gametophytes and the anther wall
論述單穗升麻的小孢子發生和雄配子體發育以及花藥壁的發育。Examples include male and female plants in dioecious species, aerial and submerged leaves, alternation of gametophyte and sporophyte stages of a life cycle, and mesophyll and bundle - sheath chloroplasts
例如在雌雄異株物種中的雌性植物和雄性植物,氣生的和被水浸沒的葉片,生活史中的配子體與孢子體的交替,葉肉和維管束鞘葉綠體等。The endosperm is usually triploid and develops from the primary endosperm nucleus, the triploid nucleus resulting from the fusion of one of the male gametes from the pollen tube with the polar nuclei in the embryo sac
胚乳通常是三倍體,由初生胚乳核發育而來,三倍體核來源於花粉管中的雄配子與胚囊中兩個極核的融合。A new approach to obtain transgenic plants - male germ line transformation
植物雄配子體轉化技術及應用In this paper, the whole process of it microsporogenesis and male gametophytes development was observed with microscope to sure weather stamen development is normal. at the same time, in order to provide techniques on biotechnology conservation and the foundation of its resources gene pool in cell engineering, its techniques on culture in vitro was studied
本論文通過對蝟實小孢子發生和雄配子體發育全過程進行細胞觀察,探尋蝟實的雄性器官的發育是否是蝟實有性生殖的薄弱環節,並對蝟實的離體培養進行了初步的研究,為蝟實生物技術保存、建立蝟實種質資源基因庫提供細胞工程方面的途徑和技術。The microsporogenesis and male gamephyte development of psathyrostachys huashanica keng
華山新麥草小孢子發生及雄配子體的形成Several vegetative clones of male or female gametophytes of u. pinnatifida has been induced and parthenogenesis of female gametophytes has been observed. 90 % of the gametophytes can grow into young sporophytes one month after fertilization. no staining background of either lacz or gus was found in different tissues of u. pinnatifida
進行裙帶菜配子體孤雌生殖、孤雄生殖和雌雄受精的再生途徑實驗,結果沒有得到孤雄生殖的裙帶菜,孤雌生殖的效率低、時間長且發育不正常,雌雄受精的再生途徑一個月左右90 %以上的雌配子體都正常萌發成幼孢子體。This paper firstly focused on and evaluated the pollination characteristics of c. praecox, in half - natural habitat of nanjing. we investigated flowering phenology, flowering patten, pollen viability, stigma receptibility, species of visitors, visiting rate of visitors and their foraging behavior. and we also investigated its breeding system, including pollen - ovule ratio ( p / 0 ), out - crossing index ( oci ), pollen grains deposited in stigmas, pollen germination rate and seed set rate with different treatments, from 2002 to 2004
試驗分別在2002 - 2003年和2003 - 2004年冬季進行,研究內容包括:花期物候觀察、花部形態觀察和統計、雌雄配子體功能測定、訪問昆蟲種類、訪問行為、訪花頻率和效率;同時對蠟梅繁育系統進行了檢測,檢測內容包括花粉胚珠比( p / 0 ) 、雜交指數( oci )及不同處理花粉萌發率及結實率檢測等等,同時還進行了蠟梅與亮葉蠟梅傳粉過程比較。But the plants did n ' t accept this fact passively, instead they took active strategies of adaptability, such as mass blossom, prolonging the functional period of female and male gametophyte, and generalization of pollen medium
但植物並非被動地接受這一事實,而採取了積極的適應對策:大量開花,延長雌雄配子體的功能期和傳粉媒介的泛化。In order to explore the seedless mechanism of ponkan ( citrus reticulata blanco ), new seedless ponkan cultivar lipeng no. 2 and common seedy ponkan cultivar were used as materials for observing fertility and compatibility of male and female gametophyte
摘要為系統探明?柑無核發生的機制,以無核?柑新品種麗? 2號和普通有核?柑為試材,對雌雄配子體的育性和親和性進行了觀察。The gametophyte ( pollen grain ) contains all the genetic information required to unite with the female gamete at fertilization and to form a new sporephyte. a relatively large number of genes are required to program pollen development
在高等植物中,花的發育是一個復雜的過程,涉及到由營養分生組織(或花序分生組織)向花分生組織的轉變,花的形態建成以及雌、雄配子體的發育和分化。The concept of an alternation of generations can be extended to the flowering plants, in which the embryo sac and pollen represent the much reduced famale and male gametophyte generations respectively
這個概念也可以運用在有花植物上,由胚囊和花粉各自表達雌雄配子體世代。分享友人