Metabolism of Tritiated Gibberellins in d-5 Dwarf Maize
نویسندگان
چکیده
منابع مشابه
Gibberellin Structure-Dependent Interaction between Gibberellins and Deoxygibberellin C in the Growth of Dwarf Maize Seedlings.
The effects of 3-deoxygibberellin C (DGC) on the growth-promoting actions of gibberellins A(1), A(2), A(3), A(4), A(5), A(7), A(8), A(9), A(13), A(18), A(19), A(20), and A(23) (GAn) as well as 13-deoxygibberellin A(5) (deoxy-GA(5)) were tested with seedlings of gibberellin-deficient dwarf mutants (d(2) and d(5)) of maize (Zea mays L.). It was found that DGC promoted the actions of gibberellins ...
متن کاملQualitative and Quantitative Analyses of Gibberellins in Vegetative Shoots of Normal, dwarf-1, dwarf-2, dwarf-3, and dwarf-5 Seedlings of Zea mays L.
Gibberellins A(12) (GA(12)), GA(53), GA(44), GA(19), GA(17), GA(20), GA(29), GA(1), and GA(8) have been identified from extracts of vegetative shoots of normal (wild type) maize using full scan capillary gas chromatography-mass spectrometry and Kovats retention indices. Seven of these gibberellins (GAs) have been quantified by capillary gas chromatography-selected ion monitoring using internal ...
متن کاملMetabolism of Tritiated Gibberellin A(9) by Shoots of Dark-grown Dwarf Pea, cv. Meteor.
Tritium-labeled gibberellin A(9) ((3)H-GA(9)) was metabolized by etiolated shoots of dwarf pea (Pisum sativum cv. Meteor) to GA(20), GA(10), 2,3-dihydro-GA(31), and a number of highly polar, acidic GA-like substances. Identifications were made by gasliquid radiochromatography and combined gas chromatography-mass spectrometry. Kinetic studies showed that GA(30) and 2,3-dihydro-GA(31) were produc...
متن کاملRadioactive gibberellin a(5) and its metabolism in dwarf peas.
Radioactive gibberellin A(5) ((3)H-GA(5)) was synthesized from gibberellic acid. When it was applied to dwarf peas grown in the dark, an average of 3% was converted to another acid gibberellin within 48 hours. The biological activity of the metabolite did not account for the response to applied GA(5). GA(5) is therefore assumed to be biologically active per se.(3)H-GA(5) did not appear to form ...
متن کاملGibberellins promote vegetative phase change and reproductive maturity in maize.
Postembryonic shoot development in maize (Zea mays L.) is divided into a juvenile vegetative phase, an adult vegetative phase, and a reproductive phase that differ in the expression of many morphological traits. A reduction in the endogenous levels of bioactive gibberellins (GAs) conditioned by any one of the dwarf1, dwarf3, dwarf5, or anther ear1 mutations in maize delays the transition from j...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1975
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.55.4.620