Definition of Megagametophytes. Meaning of Megagametophytes. Synonyms of Megagametophytes

- megasporangium tissue (the nucellus) surround the megagametophyte. Megagametophytes produce archegonia (lost in some groups such as flowering plants),...
- microgametophytes which produce sperm. Megaspores produce reduced megagametophytes inside the spore wall. At maturity, the megaspore cracks open at the...
- least one of the spores develop into haploid female gametophytes, the megagametophytes. The megaspore mother cell arises within the megasporangium tissue...
- sizes, both globose, trilete. Megagametophytes and microgametophytes protruding through sporangium wall; megagametophytes floating on water surface with...
- angiosperms. This process involves the fusion of a female gametophyte or megagametophyte, also called the embryonic sac, with two male gametes (sperm). It begins...
- A megagametophyte develops with an egg cell within it that develops into an embryo through parthenogenesis. The central cell of the megagametophyte may...
- the megagametophytes of gymnosperms. The term is not used for angiosperms or the gnetophytes Gnetum and Welwitschia because the megagametophyte is reduced...
- leaves that bear the megasporangia). Megaspores germinate producing megagametophytes; at maturity one or more archegonia are produced. Eggs develop within...
- break the spore wall open on germination and develop outside it. The megagametophytes of endosporic plants such as the seed ferns developed within the sporangia...
- remnant of the megasporangium and main region of the ovule where the megagametophyte develops. The micropyle, a small pore or opening in the apex of the...