anther

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Fig. 39 Anther . Transverse sections of (a) young and (b) mature anthers.

anther

that part of the STAMEN of a flower that produces the male GAMETES and that is located at the end of a flexible stalk (the filament). Each anther usually has four ‘pollen sacs’ in which POLLEN GRAINS (HAPLOID) develop by a process of MEIOSIS. The pollen-grain nucleus divides into generative and tube nuclei, representing a truncated version of the GAMETOPHYTE generation found more clearly in lower plants.

See also EMBRYO SAC.

References in periodicals archive ?
The free parts of the filaments of the shorter pair of stamens are 24-26 mm long, projecting the terminal anthers 14-16 mm beyond the throat of the corolla-tube.
The anthers were dehiscent and the pollen grains were shed on May 21 (Table 1).
and Siphocampylus Pohl by the broad (versus narrow) apex of the anther tube, the fleshy, indehiscent fruits (versus capsules in most Siphocampylus spp.
of anthers and anther length under different sizes after removal of petals (Fig.
Several sections for each anther developmental stages were investigated with a Zeiss Axiostar plus light microscope.
It too seems to be effectively pollinated by honey bees and native larger-bodied generalist bees that scrabble at the anthers for pollen, as well as by nectar-foraging hummingbirds (Mitchell, 1989).
Breidy, the seed bank director at the Lebanese Agricultural Research Institute, cuts open the spikelets from one ear of wheat, removes the anthers inside, and discards them.
Floral biology refers to a comprehensive study of flowers which includes anthesis, dehiscence of anthers, pollen fertility and stigma receptivity (Kalloo, 1988).
This stamen will be conspicuously smaller than the other stamen primordia for a substantial period of early development and will be the last of the stamens to differentiate into filament and anther (Figs.