meiospore


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meiospore

[′mī·ə‚spȯr]
(biology)
A spore produced as the result of meiosis.
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References in periodicals archive ?
Analysis of data on meiosis in all groups of bryophytes has led us to hypothesize that the sporopollenin wall typically covering the algal zygote was transferred directly to meiospores without an intervening sporophyte generation.
Tetraspores (meiospores) of the hosts Polyneura latissima, Phycodrys setchellii, and Anisocladella pacifica were isolated, and the resultant gametophytes were grown until gametes were differentiated.
Next, haploid cells (meiospores) are separated after the degeneration of the special wall, and each of the meiospores is turned into young meiospores with big and central vacuoles (V) and small and peripheral nucleus (N).
producing four or eight meiospores that subsequently reproduce by mitotic division, producing haploid spores.
If the homologous theory of origin of the land-plant sporophyte were true, we would expect to find some evidence (in lower land plants) of either motile meiospores or of spores that exhibit (cytologically) a remnant of former flagellation.