pollen sac


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pollen sac

n.
One of the chambers of an anther or a male cone in which pollen is produced; the microsporangium of a seed plant.
References in periodicals archive ?
It is interesting that abnormal phenomena in the tapetum of sterile plants were observed during metaphase period of the development of the wall of pollen sac.
Each pollen sac was concluded of peripheral cells forming an undifferentiated walls and a mass of uniformed cells (archeosporial cells) (fig 1A).
In this case, a male-derived embryo was obtained after emasculation of the female parental, irradiation of the pollen sac, and pollination with untreated pollen (Ehrensberger, 1948; Gerassimova, 1936).
1] hybrid gamete gene homozygote inbred indehiscent mesocarp nut open-pollinated seeds parthenocarpy perfect pericarp pollen sac quantitative trait self-incompatible self-sterile tube nucleus zygote
They are formed both in the cells of the tapetum and in the locule of the pollen sac (Rowley et al.
At this stage, the wall surrounding the four microspore cells dissolve and the microspores in the pollen sac are released.
Soon, the wall surrounding the 4 microspore cells dissolve and the microspores in the pollen sac are released.
Pollen was visible in the pollen sacs on the legs of the bees.