Definition of Megaspore. Meaning of Megaspore. Synonyms of Megaspore

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Definition of Megaspore

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Meaning of Megaspore from wikipedia

- Megaspores, also called macrospores, are a type of spore that is present in heterosporous plants. These plants have two spore types, megaspores and microspores...
- A megaspore mother cell, or megasporocyte, is a diploid cell in plants in which meiosis will occur, resulting in the production of four haploid megaspores...
- the megasporangium), and the female gametophyte (formed from a haploid megaspore) in its center. The female gametophyte — specifically termed a megagametophyte—...
- the megaspore, which arises from megasporogenesis, develops into the embryo sac, which is where the female gamete is housed. These megaspores then develop...
- generations. The spores of seed plants are produced internally, and the megaspores (formed within the ovules) and the microspores are involved in the formation...
- plants. The smaller of these, the microspore, is male and the larger megaspore is female. Heterospory evolved during the Devonian period from isospory...
- Microspores are land plant spores that develop into male gametophytes, whereas megaspores develop into female gametophytes. The male gametophyte gives rise to sperm...
- megaspores are dis****d from sporangia either p****ively or by active ejection. Microspores produce microgametophytes which produce sperm. Megaspores...
- cell division, producing four haploid megaspores. Only one of the four resulting megaspores survives. This megaspore undergoes three rounds of mitotic division...
- female spore is considerably larger than a male spore, it is termed a megaspore. Azolla has microscopic male and female gametophytes that develop inside...