double fertilization

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The union in flowering plants of two sperm nuclei. One sperm nucleus unites with the egg to form the diploid zygote, from which the embryo develops, and the other unites with two polar nuclei to form the triploid, primary endosperm nucleus.

double fertilization

The process in which the two sperm nuclei of a pollen grain unite with nuclei of the embryo sac of an angiosperm plant. One sperm nucleus unites with the egg to form the diploid zygote, from which the embryo develops. The other sperm unites with the two nuclei located in a single cell at the center of the embryo sac. Together these nuclei form the triploid nucleus of the cell from which the endosperm develops. Double fertilization in this form is unique to the angiosperms.

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angiosperm egg apparatus pollination			Nawaschin, the discoverer of double fertilization in angiosperms and the work he stimulated, researchers with/influenced by the Department of Embryology and Reproductive Biology, Komarov Botanical Institute, Russian Academy of Sciences, treat plant processes now controllable by plant breeders due to new hypotheses, data, technologies, and methods. Embryology of flowering plants; terminology and concepts; v.2: Seed by SciTech Book News			double damages double date Double dealer Double dealing double decomposition double decomposition reaction double density double digging double digit double dip double dipper double dipping double door double dribble Double drum double drummer double dutch double dye double eagle Double elephant paper double entendre double entry double exposure double fault double feature double fertilization double figure double first double flat Double floor double flow route Double flower Double fugue Double geared double genitive double glazing double Gloucester double gold double helix Double image micrometer double indemnity double jeopardy double knit double knitting double leg circle Double letter double negation double negative Double note double obelisk Double octave			double escrow Double Even Pass Odd Double Excitations In Configuration Interaction Double Execution, Message Checksums Double Exponential Jump-Diffusion Double Exposure Double Exposure Double Exposure Double Exposure Double Exposure double exposures double exposures Double Extended Three Letter Acronym Double extension Double extension Double Extra Heavy Double Extra Large Double eyelid Double eyelid Double eyelid Double Fanucci double fault double faults double feathering double feature double feature double features Double Feeder Double Fence Intercomparison Reference Double fertilisation double fertilization Double Fifth double figure Double Filtration Plasma Pheresis Double Fine Action Comics double first double firsts Double Fisted Sailing Club Double Fixed Pulley Double Fixed-Polarity Reed-Muller Double Flag double flat double flats double fleece double fleece double fleece double fleece double Flemish bond Double float Double floor Double floor Double florin Double florin (British coin) Double Florins double flow route Double Flower Double Flower FC double for double format pavior

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