Microspores are land plant spores that develop into male gametophytes, whereas megaspores develop into female gametophytes. The male gametophyte gives...
7 KB (844 words) - 15:00, 17 October 2023
diploid microspore mother cells. These microspore mother cells, also called microsporocytes, then undergo meiosis and become four microspore haploid cells...
1 KB (175 words) - 09:52, 2 April 2023
extension on the dorsal side of the anther. A pollen grain develops from a microspore in the microsporangium and contains the male gametophyte. The size of...
17 KB (1,828 words) - 16:53, 23 August 2024
Heterospory (section Microspores and megaspores)
and sexes by the sporophytes of land plants. The smaller of these, the microspore, is male and the larger megaspore is female. Heterospory evolved during...
13 KB (1,322 words) - 09:29, 6 August 2024
A microsporangium (pl. microsporangia) is a sporangium that produces microspores that give rise to male gametophytes when they germinate. Microsporangia...
4 KB (433 words) - 23:51, 12 April 2024
which are heterosporous, microspores and megaspores are dispersed from sporangia either passively or by active ejection. Microspores produce microgametophytes...
26 KB (3,151 words) - 05:27, 23 August 2024
produced internally, and the megaspores (formed within the ovules) and the microspores are involved in the formation of more complex structures that form the...
24 KB (2,057 words) - 09:45, 13 August 2024
called an inflorescence. Flowers produce two kinds of reproductive cells. Microspores, which divide to become pollen grains, are the male cells; they are borne...
79 KB (6,233 words) - 21:17, 12 July 2024
contains diploid microspore mother cells, or microsporocytes. Each microsporocyte undergoes meiosis, forming four haploid microspores, each of which can...
16 KB (2,006 words) - 08:22, 23 July 2024
and female cones. In the male cones, microspores are produced from microsporocytes by meiosis. The microspores develop into pollen grains, which contain...
50 KB (5,813 words) - 06:28, 20 August 2024