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Internode length in Pisum sativum L. The kinetics of growth and [3H]gibberellin A20 metabolism in genotype na Le by Timothy J. Ingram; James B. Reid; Jake MacMillan is a Agricultural and Biological Sciences article available to read on EtoBox.

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The relationship between shoot growth and [3H]gibberellin A/o (GA2o) metabolism was investigated in the GA-deficient genotype of peas, na Le. [17-13C, 3H2]gibberellin A/o was applied to the shoot apex and its metabolic fate examined by gas chromatographic-mass spectrometric analysis of extracts of the shoot and root tissues. As reported before, [13C, 3Hz]GA1, [13C, 3H2]GA s and [~3C, 3Hz]GA29 constituted the major metabolites of [13C, 3Hz]GA2o present in the shoot. None of these GAs showed any dilution by endogenous 12C-material. [13C, 3Hz]GA29-catabolite was also a prominent metabolite in the shoot tissue but showed pronounced isotope dilution probably due to carry-over of endogenous [12C]GAz9-Catabolite from the mature seed. In marked contrast to the shoot tissue, the two major metabolites present in the roots were identified as [~3C, 3Hz]GA scatabolite and [13C, 3Hz]GA29-catabolite. Both of these compounds showed strong dilution by endogenous 12C-material. Only low levels of [13C, 3H2]GA1, [13C, 3Hz]GA8, [13C, 3Hz]GA20 and [a3C, 3H2]GA29 accumulated in the roots. It is suggested that compartmentation of GA-catabolism may occur in the root tissue in an analogous manner to that sh

Who reads Internode length in Pisum sativum L. The kinetics of growth and [3H]gibberellin A20 metabolism in genotype na Le?

Author

Timothy J. Ingram; James B. Reid; Jake MacMillan

Publisher

Springer-Verlag; Springer Verlag; Springer Science and Business Media LLC; Society for Mining, Metallurgy and Exploration Inc. (ISSN 0032-0935)

Published

1985

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)