The smaller of the two kinds of spore produced by some ferns.
〔植〕小孢子。参见MEGASPORE
See also megaspore
Example sentencesExamples
The polarity of the micro-gametophyte (pollen grain) of flowering plants is related to the proximal-distal axis of the microspore from which it develops.
The embryogenic process originated during anther culture may have different origins, for example, haploid cells such as microspores or pollen grains, or somatic cells from anther tissues.
Both of these genera are heterosporous, meaning that each species produces two distinctly different types of spores: microspores and megaspores.
They have male spores called microspores and female spores called megaspores.
Within the microsporangium, the microspores are embedded in a foamy mass that is dispersed as ‘floats’.
Definition of microspore in US English:
microspore
nounˈmaɪkrəˌspɔrˈmīkrəˌspôr
Botany
The smaller of the two kinds of spore produced by some ferns.
〔植〕小孢子。参见MEGASPORE
See also megaspore
Example sentencesExamples
The polarity of the micro-gametophyte (pollen grain) of flowering plants is related to the proximal-distal axis of the microspore from which it develops.
Within the microsporangium, the microspores are embedded in a foamy mass that is dispersed as ‘floats’.
The embryogenic process originated during anther culture may have different origins, for example, haploid cells such as microspores or pollen grains, or somatic cells from anther tissues.
They have male spores called microspores and female spores called megaspores.
Both of these genera are heterosporous, meaning that each species produces two distinctly different types of spores: microspores and megaspores.