Toxic effects of boron on growth and antioxidant system parameters of maize (Zea mays L.) roots

Author:

Esim Nevzat1,Tiryaki Deniz2,Karadagoglu Omer3,Atici Okkes2

Affiliation:

1. Department of Biology, Bingol University, Bingol, Turkey

2. Department of Biology, Ataturk University, Erzurum, Turkey

3. Department of Chemistry, Ataturk University, Erzurum, Turkey

Abstract

The aim of this study was to investigate the possible oxidative stress and the antioxidant response, which were caused on maize by boron (B). For this, 11- and 15-day-old maize seedlings were subjected to 2 or 4 mM B in the form of boric acid (H3BO3) for 2 and/or 6 days. At the end of the treatment period, root length, hydrogen peroxide (H2O2) content, malondialdehyde (MDA) content and the antioxidant enzymes superoxide dismutase (SOD), peroxidase (POX) and catalase (CAT) were measured. The results revealed that root length of plants, activity of antioxidative enzymes such as SOD, POX and CAT and also H2O2 contents and MDA levels were seriously affected by excess B. These results suggested that the oxidative stress occurred due to the toxic effect of B.

Publisher

SAGE Publications

Subject

Health, Toxicology and Mutagenesis,Public Health, Environmental and Occupational Health,Toxicology

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