microspore


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microspore

the smaller of the two types of SPORE produced by ferns and higher plants, giving rise to the male GAMETOPHYTE. In TRACHEOPHYTES the microspore is the POLLEN GRAIN. Compare MEGASPORE.
References in periodicals archive ?
The haploid microspore nucleus divides mitotically to produce two haploid nuclei: the tube nucleus and the generative nucleus.
microsporangium The structure in which microspores are produced.
Key words: Microspore culture, callus, colchicine, Raphanussativus L.
In vitro induction of haploid plants in unpollinated ovules, anther and microspore culture of Cucumis sativus.
Each microspore mother cell undergoes meiosis; during which M.
In this third type, the cell walls degenerate and the individual protoplasts, without formation of a plasmodium, intmde the locules often in a cyclic pattern during microspore development.
com, or MSN Live Search, find more information by searching for these words or phrases: after riping, dioecious, generative cell, integument, microsporangia, microspore mother cell, nucellus, ovule, polyembryony, seed coat, self-incompatible, and tube cell.
Exuberant metabolism of the tapetum could provide enzymes, hormones, favorable nutrition for developing PMCs and microspores, and regulate the proper release of microspore (Zhao et al.
There was a significant correlation between microspore mother cell divisions and anther's tapetum development that is coincides with other reports for dicotyledonous plants [7,10,6].
microspore: Haploid cells produced by meiosis in the anthers of angiosperms; four microspores are produced from a single microsporocyte.
Pollen development in glyphosate-treated plants was apparently inhibited or aborted at the vacuolate microspore and valcuolate microgamete stages of microgametogenesis and resulted in immature pollen at anthesis.