Effects of exogenously applied gibberellin and red light on the endogenous levels of abscisic acid in photoblastic lettuce seeds

Endogenous levels of ABA in photoblastic lettuce seeds were decreased both by red-light irradiation and exogenously applied gibberellin. Since red light increases endogenous levels of GA1 and exogenously applied ABA inhibits both red-light- and gibberellin-induced germination, a decrease in ABA may...

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Veröffentlicht in:	Plant and cell physiology 1994-01, Vol.35 (1), p.127-129
Hauptverfasser:	Toyomasu, T. (Tokyo Univ. (Japan). Faculty of Agriculture), Yamane, H, Murofushi, N, Inoue, Y
Format:	Artikel
Sprache:	eng
Schlagworte:	ABA Abscisic acid ACIDE ABSCISSIQUE ACIDO ABSCISICO ACIDO GIBERELICO Agronomy. Soil science and plant productions Biological and medical sciences FITOCROMA Fundamental and applied biological sciences. Psychology GC/SIM GERMINACION GERMINATION Germination and dormancy Gibberellin GIBBERELLINE GRAINE LACTUCA SATIVA LIGHT LUMIERE LUZ PHYTOCHROME Plant physiology and development Seed (Lactuca sativa) SEEDS SEMILLA
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Zusammenfassung:	Endogenous levels of ABA in photoblastic lettuce seeds were decreased both by red-light irradiation and exogenously applied gibberellin. Since red light increases endogenous levels of GA1 and exogenously applied ABA inhibits both red-light- and gibberellin-induced germination, a decrease in ABA may be important for germination.
ISSN:	0032-0781 1471-9053 1471-9053
DOI:	10.1093/oxfordjournals.pcp.a078564