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Salt and Abscisic Acid Effects on 2,4,5-T Translocation

Published online by Cambridge University Press:  12 June 2017

E. Basler  and
F. W. Slife
E. Basler
Affiliation:
Dep. of Bot. and Plant Pathol. Oklahoma State Univ., Stillwater, OK 74074
F. W. Slife
Affiliation:
Dep. of Agron. Univ. of Illinois, Urbana, IL 61801
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Abstract

The effects of chloride salts of potassium, sodium, ammonium, and lithium and abscisic acid (ABA) on the translocation of 2,4,5-T [(2,4,5-trichlorophenoxy)acetic acid] in bean (Phaseolus vulgaris L. Var. Stringless Green-pod) seedlings were determined. 14C-labeled 2,4,5-T was injected in the stem tissue at the cotyledonary node in a 1-μl volume along with ABA. The salts were added to the nutrient solution at 20 mM concentrations at the time of 2,4,5-T treatment. Sodium chloride inhibited 2,4,5-T accumulation in the upper portion of the plant; and except for LiCl, the salts tended to increase accumulation in the nutrient solution. LiCl increased 2,4,5-T accumulation in the young shoots and primary leaves and decreased accumulation in the roots and nutrient solution. The effects of ABA on 2,4,5-T translocation were similar to the effects of NaCl but were more pronounced. ABA caused large decreases in 2,4,5-T translocation to the young shoots and primary leaves and increased accumulation in the nutrient solution.

Type
Research Article
Information
Weed Science , Volume 22 , Issue 3 , May 1974 , pp. 197 - 200
Copyright
Copyright © 1974 by the Weed Science Society of America 

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References

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