micropyle

At the center is a minute opening, called a micropyle, through which the sperm enters the egg.

After fertilization through the micropyle, the zygote turned into dormancy status without certain time phase.

In third stage, at maturing of the embryo sac, pollen tubes grow directionally toward micropyle into embryo sac.

Porogamy The usual method of fertilization in angiosperms in which the pollen tube enters the ovule by the micropyle. Compare chalazogamy.

In radicle areas, there are palisade cells and a lucuna which located above micropyle and formed via knockdown parenchyma cells .

On this butterfly egg, the lacy pattern marks the micropyle, where sperm enters.

micropyle Opening in egg capsule through which spermatozoa enter.

micropyle formed by inner integument or by both integuments.

There the sperm must find and swim through an opening at one end of the egg, the micropyle.

Developmental Morphology of Obturator and Micropyle and Pathway of Pollen Tube Growth in Ovary in Phellodendron amurense (Rutaceae)

The central cell located at the embryo sac central committee, 2 polar nuclei approaches the micropyle end the egg cell;

Building of Mathematical Model of Unusual Structure on Teleost's Micropyle

Helps cell's big vacuole located at to gather an end, but egg cell's big vacuole located at micropyle end;

ovule 1, pendulous, anatropous, micropyle closed;

ovules 2, rarely 1 per locule, pendulous from apex, anatropous with abaxial raphe and micropyle facing upward;