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. 1971 Aug;68(8):1730-3.
doi: 10.1073/pnas.68.8.1730.

Rapid change in water flux induced by auxins

B G Kang  1 , S P Burg
Affiliations

Rapid change in water flux induced by auxins

B G Kang et al. Proc Natl Acad Sci U S A. 1971 Aug.

Abstract

Auxin (indole-3-acetic acid) enhances movement of tritiated water into and out of stem segments of etiolated peas. The time required for water in the tissue to attain one-half equilibrium with water in the surrounding solution is significantly shorter and the initial flux rate is higher in auxin-treated sections. The response is one of the most rapid to auxin, occurring well within 1 min after application of the hormone. This suggests that an action of auxin on the membrane system occurs before or coincident with auxin-induced enhancement of growth and wall elastic extensibility.

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References

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