Definition of Microspore. Meaning of Microspore. Synonyms of Microspore

Here you will find one or more explanations in English for the word Microspore. Also in the bottom left of the page several parts of wikipedia pages related to the word Microspore and, of course, Microspore synonyms and on the right images related to the word Microspore.

Definition of Microspore

Microspore
Microspore Mi"cro*spore, n. [Micro- + spore.] (Bot.) 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.

Meaning of Microspore from wikipedia

- Microspores are land plant spores that develop into male gametophytes, whereas megaspores develop into female gametophytes. The male gametophyte gives...
- diploid microspore mother cells. These microspore mother cells, also called microsporocytes, then undergo meiosis and become four microspore haploid cells...
- and ****es by the sporophytes of land plants. The smaller of these, the microspore, is male and the larger megaspore is female. Heterospory evolved during...
- which are heterosporous, microspores and megaspores are dis****d from sporangia either p****ively or by active ejection. Microspores produce microgametophytes...
- heterosporous plants. These plants have two spore types, megaspores and microspores. Generally speaking, the megaspore, or large spore, germinates into a...
- Microsporangia are sporangia that produce microspores that give rise to male gametophytes when they germinate. Microsporangia occur in all vascular plants...
- produced internally, and the megaspores (formed within the ovules) and the microspores are involved in the formation of more complex structures that form the...
- microspore mother cell undergoes two successive meiotic divisions to produce 4 haploid cells (microspores or male gametes). Each of these microspores...
- extension on the dorsal side of the anther. A pollen grain develops from a microspore in the microsporangium and contains the male gametophyte. The stamens...
- to inner side of anther, synthesis of callase enzyme for separation of microspore tetrads. Two main tapetum types are recognised, secretory (glandular)...
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