Open AccessMegagametophyte development of Nymphaea nouchali Burm. f. (Nymphaeaceae)
Author(s) -
ORBAN ISABELLE,
BOUHARMONT JULES
Publication year - 1998
Publication title -
botanical journal of the linnean society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.872
H-Index - 68
eISSN - 1095-8339
pISSN - 0024-4074
DOI - 10.1111/j.1095-8339.1998.tb01386.x
Subject(s) - megaspore , biology , botany , gametogenesis , ovule , polygonum , embryo , embryogenesis , ecology , fishery , pollen
The development of reproductive cells has been analysed in Nymphaea 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 the Polygonum type, but mega‐gametogenesis is of Oenothera type.