Crossword clues for micropyle
The Collaborative International Dictionary
Micropyle \Mi"cro*pyle\, n. [Micro- + Gr. ? gate, orifice: cf. F. micropyle.] (Biol.)
An opening in the membranes surrounding the ovum, by which nutrition is assisted and the entrance of the spermatozoa permitted.
An opening in the outer coat of a seed, through which the fecundating pollen enters the ovule. -- Mi*crop"y*lar, a.
Wiktionary
n. (context botany English) In seed-bearing plants, a small opening in the integuments of the ovule through which sperm are able to access the ovum.
WordNet
n. minute opening in the wall of an ovule through which the pollen tube enters
Wikipedia
Micropyle may refer to:
- Micropyle (botany) or ovule, the structure in seed plants that gives rise to and contains the female reproductive cells
- Micropyle (zoology), a pore in the membrane covering the ovum, through which a sperm enters
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 such as Plasmodium at the anterior part of the cell that ultimately leads towards the apical cap.
Category:Reproduction