ovule - перевод на французский
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ovule - перевод на французский

PLANT STRUCTURE. A SMALL BODY IN SEED-BEARING PLANTS THAT CONSISTS OF THE INTEGUMENT(S), NUCELLUS, AND EMBRYOSAC (CONTAINING THE EGG CELL) AND DEVELOPS INTO THE SEED AFTER FERTILIZATION
Nucellar; Nucellus; Embryo sac; Perisperm; Ovules; Antipodal Cells; Ovular; Antipodal cell; Synergid; Funiculus (plant reproduction); Micropyle (botany)
  • Ovule with megagametophyte: egg cell (yellow), synergids (orange), central cell with two polar nuclei (bright green), and antipodals (dark green)
  • Megagametophyte formation of the genera ''Polygonum'' and ''Lilium''. Triploid nuclei are shown as ellipses with three white dots. The first three columns show the meiosis of the megaspore, followed by 1-2 mitoses.
  • Models of different ovules, [[Botanical Museum Greifswald]]
  • Plant ovules: Gymnosperm ovule on left, angiosperm ovule (inside ovary) on right
  • Ovule structure (anatropous) 1: nucellus 2: [[chalaza]] 3: funiculus 4: raphe
  • Location of ovules inside a ''[[Helleborus foetidus]]'' flower

ovule         
n. (Anatomy) ovule, egg-like structure which develops into a seed following fertilization
préovulaire      
preovulatory, preceding ovulation, occurring before ovulation
ovulation         
n. ovulation, production and emission of an egg from the ovary for potential fertilization

Определение

Ovule
·noun An Ovum.
II. Ovule ·noun The rudiment of a seed. It grows from a placenta, and consists of a soft nucleus within two delicate coatings. The attached base of the ovule is the hilum, the coatings are united with the nucleus at the chalaza, and their minute orifice is the foramen.

Википедия

Ovule

In seed plants, the ovule is the structure that gives rise to and contains the female reproductive cells. It consists of three parts: the integument, forming its outer layer, the nucellus (or remnant of the megasporangium), and the female gametophyte (formed from a haploid megaspore) in its center. The female gametophyte — specifically termed a megagametophyte— is also called the embryo sac in angiosperms. The megagametophyte produces an egg cell for the purpose of fertilization. The ovule is a small structure present in the ovary. It is attached to the placenta by a stalk called a funicle. The funicle provides nourishment to the ovule.

Примеры употребления для ovule
1. Concr';tement, l‘équipe de l‘Université de Newcastle utilise un ovule de vache, en retire le noyau, et injecte ŕ l‘intérieur de l‘ADN issu de tissus humains.
2. Et c‘est finalement dans un milieu de culture que le sperme de John réussit ŕ féconder un ovule de sa femme.
3. On a vu un spermatozoďde pénétrer un ovule, les deux noyaux fusionner, les cercles gris des cellules se démultiplier dans un frémissement vital troublant.
4. Lors d‘une procréation médicalement assistée, un ovule imprégné par un spermatozoďde est mis pendant trois ŕ cinq jours dans un incubateur.
5. En fait, «l‘heureux événement» a révolutionné le traitement de l‘infertilité. Depuis, plus d‘un million de bébés sont nés d‘une fécondation in vitro (FIV), soit de la fertilisation d‘un ovule ŕ l‘extérieur du corps maternel.