synergid
Quick Summary
Synergids are two small cells found near the micropyle within the embryo sac of an angiosperm (flowering plant). The embryo sac itself develops from a spore within the ovule, which is the plant structure that matures into a seed after fertilization.123
In angiosperms, the pollen grain contains two male gametes. Upon reaching the ovule, the pollen tube grows through the micropyle and enters a synergid cell, where the male gametes are released. One male gamete fuses with the egg cell to form the zygote, initiating the development of the embryo. The other male gamete fuses with the central cell's nuclei to form the endosperm, a nutritive tissue for the developing embryo.2
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