control of seed germination in Trollius ledebouri: the breaking of dormancy

Seeds of Trollius ledebouri exhibit low germination when maintained on moistened filter paper. Dormancy can be overcome by the application of gibberellins A4 + A7 or by testa removal. Germination is characterised by a change in the anatomy of the seed and by specific alterations in the protein compl...

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Veröffentlicht in:	Planta 1985-11, Vol.166 (3), p.314-320
Hauptverfasser:	Hepher, A, Roberts, J.A
Format:	Artikel
Sprache:	eng
Schlagworte:	Biological and medical sciences Dormancy dormancy breaking Embryos Endosperm Fundamental and applied biological sciences. Psychology Germination Germination and dormancy Gibberellins Plant physiology and development Resins Seed germination Seeds Testa Toluidines Trollius
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Beschreibung
Zusammenfassung:	Seeds of Trollius ledebouri exhibit low germination when maintained on moistened filter paper. Dormancy can be overcome by the application of gibberellins A4 + A7 or by testa removal. Germination is characterised by a change in the anatomy of the seed and by specific alterations in the protein complement of the endosperm tissue. These anatomical and biochemical changes are also exhibited by isolated endosperm tissue maintained in the absence of the embryo. The observations described are discussed in relation to the interaction between the endosperm and the embryo in the control of seed germination in T. ledebouri.
ISSN:	0032-0935 1432-2048
DOI:	10.1007/BF00401167