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Gibberellins and Inhibitors in Leaves of Tall and Dwarf Beans
Author(s) -
GOTÔ NOBUHARU
Publication year - 1978
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.1399-3054.1978.tb04096.x
Subject(s) - phaseolus , dwarfism , gibberellin , bioassay , fractionation , biology , hypocotyl , thin layer chromatography , column chromatography , botany , horticulture , plant growth , chemistry , chromatography , biochemistry , genetics , gene
The contents of GAs and growth inhibitors were investigated in the dwarf (cv. Masterpiece) and tall (cv. Kentucky Wonder) varieties of bean ( Phaseolus vulgaris L.). The comparison of active substances was carried out by parallel extraction and fractionation from leaves of the two varieties followed by paper chromatography, thin layer chromatography (TLC) and bioassay, using lettuce hypocotyl growth test. Five GA‐like activities and six growth‐inhabiting activities, in which xanthoxin. ABA and bound ABA might be included, were detected in both dwarf and tall varieties. The levels of all of these GAs and inhibitors were almost identical between the two varieties. In both varieties GA 3 treatment caused two inhibitory activities to decrease. The expression of dwarfism in the vegetative growth stages of beans may have to be discussed also on the basis of another factor than that of the levels of endogenous GA inhibitors.