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- The central nucleus in the result of double fertilization. 极核经由双重授精之结果大孢子受精后的衍生细胞。
- Double fertilization is the type of the Premitotic syngamy. 双受精过程属有丝分裂前配子融合类型。
- The 3 antipodal cells disappeared as the process of double fertilization. 3个反足细胞随受精过程进行而退化。
- Gymnosperms lack endosperm and the precise double fertilization characteristic of the angiosperms, although some show a primitive form of it. 尽管裸子植物还保留有某些被子植物的基本形态,但它没有被子植物所特有的胚乳以及双受精现象。
- Observation on the Double Fertilization and Embryogenesis in Autotetraploid Rice[J]. 引用该论文 张华华;刘向东;卢永根;冯九焕.
- The double fertilization belongs to the premitotic type of syngamy.The embryo develops to conform the chenopodiad type. 蓼型胚囊,双受精属于有丝分裂前配子融合类型。
- 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. 花粉粒在柱头上萌发,双受精导致双倍体的合子和三倍体的胚乳形成。
- Abstract This paper observed the double fertilization and embryogenesis by means of conventional methods in Liriodendron chinense.The polarity of the egg is undistinct. 摘要 本文运用常规手段观察了中国鹅掌楸的双受精和胚胎发生,并探讨了其致濒的原因;
- 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. 双受精:指花粉粒中的一个精子与胚珠中的卵细胞结合形成受精卵,另一个精核与极核结合形成三倍体的胚乳核。
- The Origin of Double Fertilization and Endosperm 双受精的起源
- Double Fertilization of Hevea brasiliensis 橡胶树双受精作用的研究
- Studies on Double Fertilization in Osmanthhus fragrans 桂花受精作用的研究
- He is working double tides to finish his essay. 他日夜苦干,赶写他的文章。
- I do not realize it is a double feature. 我原先不知道这是双片连映。
- Double agents live in a perpetual state of fear. 两面派永远过着提心吊胆的生活。
- I want a double room with a view. 我要一间能看到风景的双人房间。
- He was so fat that he had a double chin. 他胖得有双下巴了。
- The carpet is too thick to double up. 这地毯太厚没法折叠。
- Is the material single width or double width? 这幅料子是单幅的还是双幅的?
- Reserve double room June fourth to tenth inclusive. 预订双人房间,六月四日至十日,共六晚,望订妥复电。