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Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12128/9293
Title: The effect of auxins (IAA and 4-CL-IAA) on the redox activity and medium pH of Zea mays L. root segments
Authors: Lekacz, Halina
Karcz, Waldemar
Keywords: Redox activity; Medium pH changes; Root segments; Zea mays L.; Auxins; Dose-response surface
Issue Date: 2006
Citation: Cellular and Molecular Biology Letters, 2006, iss. 3, s. 376-383
Abstract: Indole-3-acetic acid (IAA) and 4-chloroindole-3-acetic acid (4-Cl- IAA) were tested at different concentrations and times for their capacity to change the redox activity and medium pH of maize root segments. The doseresponse surfaces (dose-response curves as a function of time) plotted for redox activity and changes in medium pH (expressed as ΔpH) had a similar shape for both auxins, but differed significantly at the optimal concentrations. With 4-Cl- IAA, the maximal values of redox activity and medium pH changes were observed at 10-10 M, which was a 100-fold lower concentration than with IAA. Correlations were observed between redox activity and medium pH changes at the optimal concentrations of both IAA and 4-Cl-IAA. The results are discussed herein, taking into account both the concentration of the auxins and the effects produced by them.
URI: http://hdl.handle.net/20.500.12128/9293
DOI: 10.2478/s11658-006-0031-5
ISSN: 1425-8153
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