ISSN:
1432-2145
Keywords:
Amphimixis
;
Apomixis
;
Endosperm in vitro
;
Ovary/ovule culture
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Autonomous division of the endosperm was induced by in vitro culture of unpollinated ovaries or placenta-attached ovules in Helleborus niger, Lupinus luteus and Melandrium album. The induction frequencies for the three species were 50%, 10–20% and 0.1%, respectively. The endosperms contained up to 20 free nuclei; only a few ovules with 80–420 endosperm nuclei were found. Induction of autonomous division of the endosperm, which is unusual in amphimictic plants, was observed in three new species. No embryos appeared in the ovules. This suggests a developmental independence of the endosperm from the embryo in the culture of unpollinated ovaries or ovules.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00229383
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