Accumulation of 14C-Radiolabel in Leaves and Fruits after Injection of [14C]Tryptophan into Seeds of Soybean | Zendy

Mich B. Hein | Zendy; Mark L. Brenner | Zendy; William A. Brun | Zendy

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Accumulation of ¹⁴C-Radiolabel in Leaves and Fruits after Injection of [¹⁴C]Tryptophan into Seeds of Soybean

Author(s) -

Mich B. Hein,

Mark L. Brenner,

William A. Brun

Publication year - 1986

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.82.2.454

Subject(s) - tryptophan , point of delivery , chemistry , fraction (chemistry) , botany , chromatography , biology , biochemistry , amino acid

Injection of [(14)C]tryptophan into one seed in a soybean fruit resulted in recovery of radiolabel in a fraction that cochromatographed with indoleacetic acid (IAA) through three successive high performance liquid chromatography separations. Label was found in the putative IAA fraction in all of the fruit tissues sampled and in the blade of the leaf subtending the pod into which the radiolabeled tryptophan had been injected. This suggested that IAA or an IAA precursor was transported from seeds to other parts of the fruit and to subtending leaves.

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