Definition of Micropyle. Meaning of Micropyle. Synonyms of Micropyle

Here you will find one or more explanations in English for the word Micropyle. Also in the bottom left of the page several parts of wikipedia pages related to the word Micropyle and, of course, Micropyle synonyms and on the right images related to the word Micropyle.

Definition of Micropyle

Micropyle
Micropyle Mi"cro*pyle, n. [Micro- + Gr. ? gate, orifice: cf. F. micropyle.] (Biol.) (a) An opening in the membranes surrounding the ovum, by which nutrition is assisted and the entrance of the spermatozoa permitted. (b) An opening in the outer coat of a seed, through which the fecundating pollen enters the ovule. -- Mi*crop"y*lar, a.

Meaning of Micropyle from wikipedia

- the micropyle, the so-called pollination drop mechanism. Subsequently, the micropyle closes. In angiosperms, only a pollen tube enters the micropyle. During...
- Micropyle may refer to: Micropyle (botany) a minute opening in the integument of an ovule of a seed plant. Micropyle (zoology), a differentiated area of...
- A micropyle is a pore in the membrane covering the ovum, through which a sperm enters. Micropyles are also found in sporozoites of some digenetic microorganisms...
- and main region of the ovule where the megagametophyte develops. The micropyle, a small pore or opening in the apex of the integument of the ovule where...
- gametes are held within the carpel. After entering an ovum cell through the micropyle, one male nucleus fuses with the polar bodies to produce the endosperm...
- tip of the pollen tube then enters the ovary and penetrates through the micropyle opening in the ovule. The pollen tube proceeds to release the two sperm...
- Once their pollen is delivered to the stigma of flowering plants, or the micropyle of gymnosperm ovules, their gametes are delivered to the egg cell by means...
- uniform texture. In plant ovules, the chalaza is located opposite the micropyle opening of the integuments. It is the tissue where the integuments and...
- pollen tube grows and penetrates the ovule through a tiny pore called a micropyle. The sperm are transferred from the pollen through the pollen tube to...
- micropylar end is composed of an egg cell, two synergid cells, and the micropyle, an opening that allows the pollen tube to enter the structure. The nuclei...