micropyle


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Related to micropyle: embryo sac, synergid, antipodal cells
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  • noun

Words related to micropyle

minute opening in the wall of an ovule through which the pollen tube enters

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References in periodicals archive ?
The pollen can even germinate while in the pollination drop outside the micropyle (Bino et al.
1997, "The micropyle of teleost fish eggs, morphological and functional aspects (Minireview)," Proc.
Egg architecture of Naucoridae (Heteroptera): internal and external structure of the chorion and micropyle Proc Entomol Soc Wash 101(1):1-25.
5 Stieda bodies A prominent stieda body present; sub- and parastieda bodies absent Sporocyst residuum Prominent; made up of clumped globules Micropyle Absent Sporozoites Two per sporocyst 10-13 by 1.
In seed morphology, the bean seed diagram, so commonly used in teaching, incorrectly labels the raphe as the micropyle (Fig.
Micropyle and oocyst residuum absent; single polar granule present, ellipsoidal or dumb-bell shaped, usually attached to inner surface of oocyst wall.
hilum, strophiole (a crestlike excrescence about the hilum), micropyle (opening through which the pollen tube enters), or chalaza (the region opposite the micropyle, where the integuments and nucellus (central part in which the embryo sac develops) are joined) that either softens, cracks, ruptures, or collapses during treatment (Rolston, 1978, Baskin et al.
Micropyle, oocyst residuum, and polar granule absent, although numerous highly refractile granules of various sizes representing remnants of polar granules sometimes present and scattered among sporocysts.
Seed shape is described here as it is commonly illustrated with the hilum and micropyle at the 'bottom' of the seed, although it is acknowledged that this is developmentally the apex of the anatropous ovule.
the micropyle of the exposed ovule, which ancestrally has produced a drop of secreted water.
A micropyle is absent but an oocyst residuum and occasionally, a polar granule, are present.
The suspensor is a hollow tube and when the embryo starts to enlarge and the radicle is pushed backwards in the direction of the micropyle, the tip of the radicle grows into the, now funnel-shaped, distal part of the suspensor.
Micropyle and oocyst residuum absent; one (rarely two or three) large polar granule(s) present, 3.