double fertilization 中文意思是什麼

double fertilization 解釋
雙受精作用
  • double : adj 1 兩倍的，加倍的。2 雙的，二重的，雙重的；對，雙，兩，復。3 雙人用的；折疊式的。4 （意義）雙...
  • fertilization : n. 1. 肥沃化，施肥（法）；豐饒化。2. 【生物學】受孕[受精]（作用，現象）。
  1. Therefore, toreniafournieri is a very suitable model plant for studies of double fertilization in living material. we transferred the fusion gene ofgfp : mtn to toreniafournieri by leaf disc transformation mediated by agrobacterium and gain transgenic plant

    我們將嵌合基因gfp : mtn通過葉盤法導入藍豬耳，探索了藍豬耳遺傳轉化的方法和轉基因苗的再生條件，建立了成熟的藍豬耳轉化系統。
  2. We transferred the hetero - logous gene into toreniafournieri successfully. this method laid a foundation for study of double fertilization of angiosperm by transgenic tecnology

    我們將外源基因成功地導入藍豬耳，為利用轉基因的手段研究被子植物受精和胚囊發育打下基礎。
  3. The pollen grain germinates on a special extension of the carpel, the stigma, and double fertilization results in a diploid zygote and triploid ( usually ) endosperm nucleus

    花粉粒在柱頭上萌發，雙受精導致雙倍體的合子和三倍體的胚乳形成。
  4. Double fertilization the fusion of one pollen nucleus with the egg to form the zygote and of the other pollen nucleus with a polar nucleus to form the triploid endosperm nucleus

    雙受精：指花粉粒中的一個精子與胚珠中的卵細胞結合形成受精卵，另一個精核與極核結合形成三倍體的胚乳核。
  5. The transformation system would be a valuable tool for flower development and double fertilization studies

    這個優良的轉化系統為應用基因工程手段研究花發育和雙受精機制奠定基礎。
  6. Gymnosperms lack endosperm and the precise double fertilization characteristic of the angiosperms, although some show a primitive form of it

    盡管裸子植物還保留有某些被子植物的基本形態，但它沒有被子植物所特有的胚乳以及雙受精現象。
  7. Obstacles to progress are : ( 1 ) the double fertilization of most angiosperms occurs internally, deep within ovary tissues, as a result it is very difficult to investigate the truth

    這方面的研究之所以比較滯后，一方面是由於大多數被子植物胚囊深藏於子房內，為處理和觀察帶來很大困難。
  8. As an effective evolution strategy of angiosperms, double fertilization can enhance the survival of the embryos, seeds and seedlings in which endosperms play a key role in the development of seeds and embryos

    摘要雙受精是被子植物的一個有效的進化策略，增加了胚和種苗成活的機會，其中胚乳在胚以及種子發育中至關重要。
  9. In 2001 the journal of reproductive medicine published a study by three columbia university researchers claiming that prayer for women undergoing in vitro fertilization resulted in a pregnancy rate of 50 percent, double that of women who did not receive prayer

    2001年《再生醫學期刊》刊出了一篇美國哥倫比亞大學三位研究員的研究報告，宣稱人工受孕的女性中，有接受代禱者的受孕率達50 % ，是沒有接受代禱者的兩倍。
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