double fertilization

double fertilization
dvigubas apvaisinimas statusas T sritis augalininkystė apibrėžtis Apvaisinimas, kurio metu vienas spermis apvaisina kiaušialąstę ir iš jos rutuliojasi gemalas, o antras susilieja su centrine gemalo maišelio ląstele, iš kurios rutuliojasi endospermas su triploidiniu (trigubu) chromosomų skaičiumi. atitikmenys: angl. double fertilization rus. двойное oплодотворение

Žemės ūkio augalų selekcijos ir sėklininkystės terminų žodynas. . 2010.

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  • double fertilization — double fertilization. См. двойное оплодотворение. (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.

  • Double fertilization — The parts of a flower Double fertilization …   Wikipedia

  • double fertilization — noun : fertilization that is characteristic of most seed plants and that involves a fusion between the egg nucleus and a sperm nucleus, which results in the production of the embryo, and a fusion between the second sperm nucleus and the two… …   Useful english dictionary

  • double fertilization — noun Date: circa 1909 fertilization characteristic of seed plants in which one sperm nucleus fuses with the egg nucleus to form an embryo and another fuses with polar nuclei to form endosperm …   New Collegiate Dictionary

  • double fertilization — the fertilization process characteristic of flowering plants, in which one sperm cell of a pollen grain fertilizes an egg cell while a second fuses with two polar nuclei to produce a triploid body that gives rise to the endosperm. [1905 10] * * * …   Universalium

  • double fertilization — A process, unique to flowering plants, in which two male nuclei, which have travelled down the pollen tube, separately fuse with different female nuclei in the embryo sac. The first male nucleus fuses with the egg cell to form the zygote; the… …   Glossary of Biotechnology

  • 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… …   Glossary of Biotechnology

  • 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

  • Iron fertilization — For information on ocean fertilization schemes not involving iron, see ocean nourishment. An oceanic phytoplankton bloom in the South Atlantic Ocean, off the coast of Argentina covering an area about 300 miles (480 km) by 50 miles Iron… …   Wikipedia

  • Cross fertilization — Cross Cross (kr[o^]s), a. 1. Not parallel; lying or falling athwart; transverse; oblique; intersecting. [1913 Webster] The cross refraction of the second prism. Sir I. Newton. [1913 Webster] 2. Not accordant with what is wished or expected;… …   The Collaborative International Dictionary of English

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