polar fusion nucleus

См. также в других словарях:

• polar fusion nucleus — polar fusion nucleus. См. вторичное ядро. (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.

• endosperm nucleus — noun Date: circa 1902 the triploid nucleus formed in the embryo sac of a seed plant by fusion of a sperm nucleus with two polar nuclei or with a nucleus formed by the prior fusion of the polar nuclei …   New Collegiate Dictionary

• endosperm nucleus — noun : the triploid nucleus formed in the embryo sac of a seed plant by fusion of a sperm nucleus with the two polar nuclei or with a nucleus produced by their prior fusion compare double fertilization …   Useful english dictionary

• primary endosperm nucleus — noun : the nucleus formed by the fusion of two polar nuclei in the embryo sac of a seed plant prior to fertilization called also secondary nucleus; compare endosperm nucleus …   Useful english dictionary

• triple fusion — noun : the fusion involving two polar nuclei and a sperm nucleus that occurs in double fertilization in a seed plant and results in the formation of the endosperm …   Useful english dictionary

• вторичное ядро — polar fusion nucleus центральное ядро зародышевой клетки, вторичное ядро. Ядро, образующееся в результате слияния в восьмиядерном зародышевом мешке 2 полярных гаплоидных ядер; оплодотворение несущей его зародышевой клетки гаплоидным спермием… …   Молекулярная биология и генетика. Толковый словарь.

• центральное ядро зародышевой клетки — вторичное ядро Ядро, образующееся в результате слияния в восьмиядерном зародышевом мешке 2 полярных гаплоидных ядер; оплодотворение несущей его зародышевой клетки гаплоидным спермием ведет к образованию триплоидного эндосперма. [Арефьев В.А.,… …   Справочник технического переводчика

• angiosperm — /an jee euh sperrm /, n. Bot. a plant having its seeds enclosed in an ovary; a flowering plant. Cf. gymnosperm. [ANGIO + SPERM] * * * ▪ plant Introduction       any member of the more than 300,000 species of flowering plants (division Anthophyta) …   Universalium

• protist — protistan /proh tis teuhn/, adj., n. protistic, adj. /proh tist/, n. any of various one celled organisms, classified in the kingdom Protista, that are either free living or aggregated into simple colonies and that have diverse reproductive and… …   Universalium

• plant development — Introduction       a multiphasic process in which two distinct forms succeed each other in alternating generations. One form, created by the union of sexual cells (gametes (gamete)), contains two sets of similar chromosomes (diploid). At sexual… …   Universalium

• Endosperm — is the tissue produced in the seeds of most flowering plants around the time of fertilization. It surrounds the embryo and provides nutrition in the form of starch, though it can also contain oils and protein. This makes endosperm an important… …   Wikipedia