endosperm nucleus

endosperm nucleus

[′en·də‚spərm ′nü·klē·əs]
(botany)
The triploid nucleus formed within the embryo sac of most seed plants by fusion of the polar nuclei with one sperm nucleus.
References in periodicals archive ?
Although we did not see fertilization of the egg cell presuming fertilization occurred ~3 d earlier based on the formation of large primary endosperm nucleus (Fig.
When the endosperm nucleus was present in the center of the enlarging embryo sac around 18 July (Fig.
For endosperm nucleus number and DNA measurements, kernels were sampled at 4, 6, 9, and 12 d after pollination.
The primary endosperm nucleus divides mitotically in a free nuclear manner and it is rich for insoluble polysaccharides and protein.
3i), and secondary nucleus gives rise to the primary endosperm nucleus.
The endosperm nucleus results from a fusion of one sperm with two polar nuclei.