tetraspore

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tetraspore

the product of MEIOSIS in many red and brown algae, being produced in fours in testrasporangia and forming the first cells of the GAMETOPHYTE generation.
References in periodicals archive ?
In contrast, the absence of callose in the cell walls of MMCs is a consistent phenomenon in tetrasporic (sexual) species (Rodkiewicz, 1970) and in all diplosporous species studied to date, which includes E.
1997) and is a characteristic of tetrasporic MMCs (Battaglia, 1989).
Callose deposits are absent in (i) MMC walls of angiosperms that undergo a megasporogenesis of the tetrasporic (meiotic karyokineses but not cytokineses) form (Rodkiewicz, 1970), which, if consistent across all tetrasporic species, would involve about 95 genera (Johri et al.