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Interactions between hydrogen cyanide, gibberellin, abscisic acid and red light in germination of lettuce seeds
Author(s) -
Zagorski Slawomir,
Lcwak Stanisiaw
Publication year - 1983
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.1399-3054.1983.tb06577.x
Subject(s) - lactuca , abscisic acid , germination , gibberellin , hydrogen cyanide , cyanide , botany , chemistry , red light , horticulture , biology , biochemistry , organic chemistry , gene
Germination of lettuce ( Lactuce sativa L. cy. Grand Rapids) seeds was promoted by red light and by pulse treatments with gibbercllie acid (GA 3 ) or hydrogen cyanide, whereas it was inhibited by short exposure of seeds to absusic acid (ABA). The eflects of unsalLirating red light and of 10 μ M GA 3 on lettuce germination were completely reversed the effect of ABA (100 μ M ). In contrast, hydrogen cyanide did not reverse the effect of 100 μ M ABA and only partly eliminated the effect of 10μ M ABA, independently of the sequence of treatments. Possible interactions between HCN GA 3 , ABA and red light were discussed. It was concluded thai light GA 3 and HCN affect different mechanisms involved in lettuce germination: ABA counteracts the stimulatory action of all these faclors. being the most effective against cvanide Additional key words ‐ Lactuca sativa, pholodormancy, phylohormoncs.