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Dino Hasanagic

Dino Hasanagic

University of Banja Luka, Bosnia and Herzegovina

Title: The role of Zeolite in reducing oxidative damage in tomato plants exposed to drought

Biography

Biography: Dino Hasanagic

Abstract

The drought is a worldwide problem and insufficient supply of plants with water is one of the most important causes of low agricultural yields and thus representing one of the most common problems faced by the producers. There has been an increased interest in science in recent years in the use of natural aluminosilicates in agriculture where the most famous is zeolite, a mineral whose absorption properties and balanced release of water and nutritive substances ever more successfully solve the issue of water supplying and mineral nutrition and have beneficial impact on overall plant growth. The aim of this study was to investigate the role of zeolite in prevention of oxidative stress in tomato plants exposed to drought. Changes in the activity of peroxidase (POD, EC 1.11.1.7), catalase (CAT, EC 1.11.1.6), ascorbate peroxidase (APX, EC 1.11.1.11), superoxide dismutase (SOD, EC 1.15.1.1) as well as reduced and total ascorbate content in plant leaves exposed to drought for 28 days were investigated. Activities of antioxidant enzymes in the leaves of plants exposed to drought were at the same level with and without the addition of zeolite. The obtained results indicate that zeolite did not prevent oxidative damages caused by drought. Native electrophoresis resolved the presence of two peroxidase isoforms specific for drought and their activities were higher in tomato leaves whit zeolite. The drought induced an increase in activities of superoxide dismutase, ascorbate peroxidase and ascorbate concentration and this antioxidative strategy was more expressed in zeolite treated plants. Unexpected results related to the role of zeolite open the possibility to different perspectives in discussion on the zeolite role in drought prevention.

References:

  1. Alfi S, Azizi, F (2015) Effect of Drought Stress and Using Zeolite on Some Quantitative and Qualitative Traits of Three Maize Varieties. Research Journal of Recent Sciences 4: 1-7.
  2. Chavan, ML, Janagoudar, BS, Dharmatti, PR, Koti, RV (2010) Effect of drought on growth attributes of tomato (Lycopersicon esculentum Mill.) genotypes. Indian Journal of Plant Physiology 15: 11-18.
  3. Kojić, D, Pajević, S, Jovanović-Galović, A, Purać, J, Pamer, E, Škondrić, S, Milovac, S, Popović, Ž, Grubor-Lajšić, G (2012) Efficacy of natural aluminosilicates in moderating drought effects on the morphological and physiological parameters of maize plants (Zea mays L.). Journal of Soil Science and Plant Nutrition 12: 113-123.
  4. Pirzad, A, Mohammadzade, S (2014) The effects of drought stress and zeolites on the protein and mineral nutrients of Lathyrus sativus. International Journal of Biosciences 4: 241-248.
  5. Gholizadeh A, Amin, MSM, Anuar, AR, Saberioon, MM. (2010) Water stress and natural zeolite impacts on physiomorphological characteristics of Moldavian Balm (Dracocephalum moldavica L.). Australian Journal of Basic and Applied Sciences 4: 5184- 5190