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. 1971 Jan;47(1):87-90.
doi: 10.1104/pp.47.1.87.

Cytokinin Activity in Water-stressed Shoots

C Itai  1 , Y Vaadia
Affiliations

Cytokinin Activity in Water-stressed Shoots

C Itai et al. Plant Physiol. 1971 Jan.

Abstract

Water stress applied to the plant shoot through enhanced evaporative demands reduced cytokinin activity in extracts of xylem exudate and leaves. This reduction resembled the changes in cytokinin activity caused by water stress applied to the root. Cytokinin activity in detached wilting leaves decreased rapidly. Recovery took place after several hours in a humid chamber. Experiments with (14)C-kinetin indicated that the mechanism of the inactivation and its reversal involve a chemical transformation of the cytokinin molecule.

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References

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