The Distribution of Gibberellins in Vegetative Tissues of Pisum sativum L. | Zendy

Valerie Smith | Zendy; Carol J. Knatt | Zendy; Paul Gaskin | Zendy; James B. Reid | Zendy

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The Distribution of Gibberellins in Vegetative Tissues of Pisum sativum L.

Author(s) -

Valerie Smith,

Carol J. Knatt,

Paul Gaskin,

James B. Reid

Publication year - 1992

Publication title -

plant physiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.554

H-Index - 312

eISSN - 1532-2548

pISSN - 0032-0889

DOI - 10.1104/pp.99.2.368

Subject(s) - pisum , sativum , gibberellin , botany , biology , distribution (mathematics) , mathematics , mathematical analysis

The concentrations of endogenous gibberellin (GA) 1, 5, 8, 19, 20, and 29 in the component tissues of maturing tall (Le) and dwarf (le) pea (Pisum sativum) plants have been determined. The following conclusions were drawn from the data obtained: (a) GA(20) and its metabolites accumulate only in the growing regions of Le and le plants; (b) the le mutation is biochemically expressed in all immature tissues of the dwarf plants; (c) the quantitative composition of the GA metabolites in the various immature tissues is variable; (d) the total GA concentration in apical buds, unexpanded leaves, and tendrils is considerably higher than in GA(1)-responsive stem tissue; and (e) there is very little GA accumulation of the inactive 2beta-hydroxylated GAs (GA(8) and GA(29)) in either the mature vegetative tissues or the roots of pea plants.

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