Gibberellin-like Substances From Vegetative Tissue of a Conifer, Arizona Cypress
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Gibberellin-like Substances From Vegetative Tissue of a Conifer, Arizona Cypress.
Vegetative shoots of Arizona cypress (Cupressus arizonica Greene) were found to contain an estimated 40 to 70 mug of gibberellin-like activity per kg. Based on elution patterns of silicic acid and celite partition columns, mobilities on thin layer chromatograms and specificity of the cucumber, d-3 dwarf maize, dwarf pea, and barley half seed bioassays it was possible to determine that the tissu...
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The occurrence of 2 gibberellin-like substances was demonstrated in the developing banana fruit, Musa sapientum, Linn. Chemical and biological evidence led to the tentative identification of the 2 compounds as GA(7) and GA(x) (previously isolated from citrus fruits). Support for such identification was obtained from thin layer chromatography, gradient elution column chromatography, spectrofluor...
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Gibberellins are compounds that produce a wide variety of growth responses in flowering plants. Among these responses are stimulation of shoot growth for many plant species,' root elongation in maize,2 induction of bolting and flowering in some biennial and long-day plants,3-resumption of normal growth in certain genetically dwarfed genotypes of maize,6 growth stimulation in dwarf strains of pe...
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1. BULA, R. J. & D. SMITH. 1954. Cold resistanice & chemical composition in overwintering alfalfa, red clover, & sweet clover. Agron. J. 46: 397-401. 2. BULA, R. J., D. SMITH, & H. J. HODGSON. 1956. Cold resistance in alfalfa at two diverse latitudes. Agron. J. 48: 153-156. 3. JANSSEN, G. 1929. The relationship of organic root reserves & other factors to the permanency of alfalfa stands. J. Am....
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Sum,itmary. Barley embryos, completely free from endospernm, wvere excised from germinating grain at various times and al'lowed to diffuse into an aqueous medium for varying lengths of time. At the end of this time, the embrvos and ambient solutioins were separately extracted. Gibberellin-like activity in the extracts was determined with the barley endosperm bioassay using seed from the same va...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1968
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.43.12.2049