The other male gamete fuses with the secondary nucleus, forming the primary endosperm nucleus . 另一个雄配子和次生核结合形成初生胚乳核。
One fuses with the egg cell to form a zygote while the other either degenerates or , in certain angiosperms , fuses with the polar nuclei to give the primary endosperm nucleus 一个与卵细胞结合形成受精卵,另一个要么退化,要么在某些被子植物中与极核结合形成初生胚乳核。