BioScience Dictionary

 
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Ot.

Found Microspore 3 times.

Displaying results 1 to 10.

1. Microspore
The smaller of the two kinds of spore s produced in the sexual life cycle of a heterosporous plant, giving rise to the male gametophyte .

2. Microspore mother cell
Cells in the microsporangium that undergo meiosis to produce microspores. In flowering plants the microspore is known as the pollen grain , and contains a three-celled male.

3. Microspores
Four haploid cells produced by the meiotic division in the pollen sacs of flowers or microsporangia of gymnosperms. Microspores undergo mitotic division and become encased in a thick protective wall to form pollen grains . Small, size usually less than 200 micrometers, spores produced by meiosis . Microspores either germinate into the male gametophyte or have the male gametophyte develop inside the microspore wall.

View web definitions »

Learn more about Microspore »