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. 1969 Jun;89(2):108-25.
doi: 10.1007/BF00386979.

The interchange of (14)C-kinetin and (14)C-gibberellic acid between the bark and xylem of willow

M R Bowen  1 , P F Wareing
Affiliations

The interchange of (14)C-kinetin and (14)C-gibberellic acid between the bark and xylem of willow

M R Bowen et al. Planta. 1969 Jun.

Abstract

Considerable two-way interchange of label derived from (14)C-GA3 and (14)C-kinetin has been shown to occur between the xylem and extra-cambial tissue of Salix viminalis L. Radial translocation of both growth substances from the transpiration stream to the sieve-tube sap has been demonstrated by the use of an aphid technique. This is the first record of the bark-xylem interchange of these two growth hormones.A high percentage of (14)C-label is present in compounds other than GA3 and kinetin 8 hours after application.Mechanisms of lateral transfer are discussed together with their possible physiological significance.

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References

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    1. Proc Natl Acad Sci U S A. 1965 Jun;53(6):1302-7 - PubMed
    1. Plant Physiol. 1957 Nov;32(6):608-19 - PubMed
    1. Planta. 1968 Mar;82(1):22-32 - PubMed

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