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Interaction of triacontanol with gibberellin in control of lettuce seed germination
Author(s) -
Lewak Stanislaw,
Skowrońska Elżbieta
Publication year - 1982
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1982.tb02284.x
Subject(s) - triacontanol , gibberellin , germination , lactuca , darkness , chemistry , botany , horticulture , biology
Triacontanol at concentrations from 2.3 × 10 ‐9 M to 2.3 × 10 ‐7 M did not affect the germination of lettuce ( Lactuca sativa L., cv. Grand Rapids) seeds in darkness, stimulated by light at 25°C or by benzyladenine at 31°C. Stimulation of seed germination by gibberellin A 3 (10 ‐5 M ) was significantly inhibited by triacontanol; the most effective concentration was 4.6 × 10 ‐8 M. Pulse experiments demonstrated that triacontanol was ineffective when applied later than gibberellin, whereas an inverse sequence of treatment caused an inhibition comparable to that resulting from continuous treatment of seeds with both factors. Possible interaction of triacontanol with gibberellin receptor is discussed.