fertilization

fertilization
The union of two gametes from opposite sexes to form a zygote. Typically, each gamete contains a haploid set of chromosomes. Hence the zygotic nucleus contains a diploid set of chromosomes. Several categories can be distinguished:
1. Self-fertilization (selfing): fusion of male and female gametes from the same individual.
2. Cross-fertilization (crossing): fusion of male and female gametes from different individuals.
3. Double fertilization; restricted to flowering plants, in which the fusion of one male gamete with the ovum occurs at about the same time as the second male gamete nucleus fuses with the female polar nuclei (or secondary nucleus) to form the endosperm.

Glossary of Biotechnology for Food and Agriculture . 2015.

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Look at other dictionaries:

  • Fertilization — Fer ti*li*za tion, n. 1. The act or process of rendering fertile. [1913 Webster] 2. (Biol.) The act of fecundating or impregnating animal or vegetable germs; esp., the process by which in flowers the pollen renders the ovule fertile, or an… …   The Collaborative International Dictionary of English

  • Fertilization — is the process of combining the male gamete, or "sperm," with the female gamete, or "ovum." The product of this combination is a cell called a zygote. * * * The process beginning with penetration of the secondary oocyte by the …   Medical dictionary

  • fertilization — fertilization. См. сингамия. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • fertilization — 1857, noun of action from FERTILIZE (Cf. fertilize) …   Etymology dictionary

  • fertilization — (Amer.) fer·ti·li·za·tion || ‚fÉœrtlaɪ zeɪʃn /‚fɜːtɪl n. impregnation, insemination; act of enriching the soil by the addition of organic or chemical substances (also fertilisation) …   English contemporary dictionary

  • fertilization — fertilizational, adj. /ferr tl euh zay sheuhn/, n. 1. an act, process, or instance of fertilizing. 2. the state of being fertilized. 3. Biol. a. the union of male and female gametic nuclei. b. fecundation or impregnation of animals or plants. 4.… …   Universalium

  • fertilization — I (New American Roget s College Thesaurus) n. impregnation, procreation, pollination; enrichment. See production. II (Roget s IV) n. 1. [The enrichment of land] Syn. manuring, dressing, preparation, covering, liming, mulching, spreading,… …   English dictionary for students

  • fertilization — tręšimas statusas T sritis chemija apibrėžtis Trąšų ir dirvožemį gerinančių medžiagų naudojimas. atitikmenys: angl. fertilization rus. внесение удобрений; удобрение …   Chemijos terminų aiškinamasis žodynas

  • fertilization — tręšimas statusas T sritis ekologija ir aplinkotyra apibrėžtis Agrotechnikos priemonė, kuri padeda trąšomis didinti žemės ūkio augalų derlių, gerinti dirvožemio kokybę. atitikmenys: angl. fertilization; fertilizing vok. Düngung, f; Mästung, f rus …   Ekologijos terminų aiškinamasis žodynas

  • fertilization — apvaisinimas statusas T sritis augalininkystė apibrėžtis Dirbtinai sukeltas procesas, kurio metu susilieja lytinės ląstelės ir susidaro kokybiškai nauja ląstelė zigota, iš kurios rutuliuojasi naujas organizmas. atitikmenys: angl. fertilization… …   Žemės ūkio augalų selekcijos ir sėklininkystės terminų žodynas

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