Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/2857
Title: 2,4-Dichlorphenoxicacetic Acid At Low Concentrations Enhances Reproductive Ability And Oxidative Stress Resistance Of Yeast Saccharomyces Cerevisiae
Authors: Bayliak, Maria
Burdylyuk, Nadia
Байляк, Марія Михайлівна
Бурдилюк, Надія Ігорівна
Keywords: colony forming unit
herbicide
hormesis
hydrogen peroxide
Issue Date: 2015
Publisher: Vasyl Stefanyk Precarpathian National University
Citation: Bayliak M. 2,4-Dichlorphenoxicacetic Acid At Low Concentrations Enhances Reproductive Ability And Oxidative Stress Resistance Of Yeast Saccharomyces Cerevisiae / M. Bayliak, N. Burdylyuk // Journal of Vasyl Stefanyk Precarpathian National University. - 2015. - Vol. 2. - № 1. - P. 93-99.
Abstract: 2,4-dichlorphenoxicacetic acid (2,4-D) is one of the most widely used herbicides with well documented toxic effects on non-target organisms. In this study, the effect of low concentrations of 2,4-D on reproductive activity and resistance of yeast S. cerevisiae to oxidative stress was evaluated. Supplementation of the cultivation medium with 0.1-100 µM 2,4-D did not affect the rate of yeast growth. In early stationary phase, yeast cultures grown with 0.1 and 1 µM 2,4-D had higher number of reproductively active cells than control ones (without 2,4-D). In exponential phase, S. cerevisiae cells grown in the presence of 1-100 µM 2,4-D were more resistant to hydrogen peroxide comparing to control ones. Thus, the herbicide increased reproductive potential and cross-resistance to oxidative stress in yeast but the effective concentrations of 2,4-D were different for these phenomena. In summary, the results suggest possible involvement of certain hormetic mechanisms in the influence of 2,4-D at low concentrations on yeast.
URI: http://hdl.handle.net/123456789/2857
Appears in Collections:Vol. 2, № 1

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