To develop into a seed C. To attract bees D. To support the flower 相关知识点: 试题来源: 解析 B。解析:在植物繁殖中,胚珠(ovule)的主要功能是发育成种子。花蜜(nectar)是由蜜腺产生的,与胚珠无关,A错误。吸引蜜蜂的主要是花瓣等结构,不是胚珠,C错误。胚珠没有支撑花朵的功能,D错误。反馈 收藏 ...
1. idea of {forms a pathway/ grows down } through thestyle / eq ;2. grows towards { ovary / ovule / micropyle / egg cell /ea} ;3. reference to digestive enzymes;4. transports {generative nucleus / haploid nuclei / malegametes / eq}/ eq ;5. fuses with embryo sac (membrane) / ...
Has Colour in Flowers a Function to perform in the Fertilisation of the Ovuledoi:doi:10.1080/03746607309467959> > > I> > I> ITransactions of the Botanical Society of Edinburgh
The frequency of sperm cell fusion decreases with time during the elongation of the pollen tube, suggesting that mechanisms inhibiting self-fusion of sperm cells may develop as the pollen tube elongates through the style toward the ovule. This tendency may play an important role in inhibiting ...
An ovule-containing organ that is derived from fused carpels. DEHISCENCE ZONE The region of a pod or capsule that breaks open to release the seeds. OVULE The structure that consists of haploid tissue (the gametophyte generation) and the surrounding diploid tissues (the integuments), which becom...
Explore the ovule of a flower. See the ovule definition and discover where the ovules are stored. Understand the ovule function in a flower and see...
RNA-seq data of various tissues (root, stem, leaf, tassel, anther, pollen, rachis, style, ovule, embryo, endosperm, and seed) and F. graminearum infection in maize were downloaded from the Sequence Read Archive (SRA) database in NCBI (https://www.ncbi.nlm.nih.gov/). The RNA-seq seq...
The embryo is the immature fertilized ovule of the seed that will germinate to produce the seedling. The development of the embryo and endosperm are initiated by a double fertilization event that is unique to angiosperms. Double fertilization is so called because there is both fusion of a sperm...
Reproduction, Sexual Stamen Self-pollination Fertilization, Ovule Gametes Endosperm PollinatorsPlant Reproductive System The plant reproductive system is made up of the stamen (the male reproductive structures) and the pistil (the female reproductive structures). The reproductive part of the plant...
The ovule development was stagnated at the tetranuclear embryo sac stage (FG4 stage) of Clbbm/Clplt2-1 double mutant. AC, antipodal; CC, central cell; EC, egg cell; ES, embryo sac; FM, functional megaspore; II, inner integument; MMC, megaspore mother cell; OI, outer integument; SC...