Lexic.us

Definition of Microspore

1. Noun. Smaller of the two types of spore produced in heterosporous plants; develops in the pollen sac into a male gametophyte.

Definition of Microspore

1. n. One of the exceedingly minute spores found in certain flowerless plants, as Selaginella and Isoetes, which bear two kinds of spores, one very much smaller than the other. Cf. Macrospore.

Definition of Microspore

1. [n -S]

Medical Definition of Microspore

1. A haploid spore produced by a plant sporophyte that develops into a male gametophyte. In seed plants, it corresponds to the developing pollen grain at the uninucleate stage. The smaller of the spores of a heterosporous species. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)

Lexicographical Neighbors of Microspore

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