Megagametophyte development ofNymphaea nouchaliBurm. f. (Nymphaeaceae)

The development of reproductive cells has been analysed inNymphaea nouchali, family Nymphaeaceae, subclass Magnoliidae. Our observations on embryo sac development differ from those in the literature. Megasporogenesis results in a triad of one micropylar cell and two innermost megaspores. Embryo sacs...

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Bibliographic Details
Published in:Botanical journal of the Linnean Society 1998-04, Vol.126 (4), p.339-348
Main Authors: ORBAN, ISABELLE, BOUHARMONT, JULES
Format: Article
Language:English
Subjects:
female gametophyte
megasporogenesis
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Summary:The development of reproductive cells has been analysed inNymphaea nouchali, family Nymphaeaceae, subclass Magnoliidae. Our observations on embryo sac development differ from those in the literature. Megasporogenesis results in a triad of one micropylar cell and two innermost megaspores. Embryo sacs derive from a single functional megaspore and are tetranucleate. Megasporogenesis is monosporic and of thePolygonumtype, but megagametogenesis is ofOenotheratype.
ISSN:0024-4074
1095-8339
DOI:10.1006/bojl.1997.0157