The effect of auxins [IAA and 4-Cl-IAA] on the redox activity and medium pH of Zea mays L. root segments

• Autorzy: Lekacz H , Karcz W.
• Języki publikacji: EN

Abstrakty

EN

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 dose-response 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.

Słowa kluczowe

EN

medium pH; 4-chloroindole-3-acetic acid; indole-3-acetic acid; Zea mays; redox activity; auxin; root segment; plant cell; dose-response surface; maize; seed

• Wydawca: -
• Czasopismo: Cellular and Molecular Biology Letters
• Rocznik: 2006
• Tom: 11
• Numer: 3
• Opis fizyczny: p.376-383,fig.,ref.

Twórcy

autor

Lekacz H

• University of Silesia, Jagiellonska 28, 40-032 Katowice, Poland

autor

Karcz W.

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