Oxidative stress responses in watermelon (Citrullus lanatus) as influenced by boron toxicity and drought

M. Hamurcu; T. Demiral; E.E. Hakki; Ö. Turkmen; S. Gezgin; R.W. Bell

doi:10.13080/z-a.2015.102.027

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Oxidative stress responses in watermelon (Citrullus lanatus) as influenced by boron toxicity and drought

Journal article

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Oxidative stress responses in watermelon (Citrullus lanatus) as influenced by boron toxicity and drought

M. Hamurcu, T. Demiral, E.E. Hakki, Ö. Turkmen, S. Gezgin and R.W. Bell

Zemdirbyste-Agriculture, Vol.102(2), pp.209-216

2015

DOI: https://doi.org/10.13080/z-a.2015.102.027

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Abstract

This study aimed to investigate the effect of different boron (B) treatments on drought tolerance of watermelon plants. Drought tolerant Citrullus lanatus (Thunb.) Matsum. et Nakai genotype ‘Kar 98’ was grown in controlled greenhouse conditions hydroponically and exposed to drought stress by applying PEG 6000 (polyethylene glycol) in the presence of three boron dosages: 0.05, 0.25 and 1.25 mM. Growth parameters (fresh weight, dry weight and lengths of shoot and roots), leaf relative water content, boron accumulation, lipid peroxidation level and activities of superoxide dismutase (SOD), catalase (CAT) and glutathione reductase (GR) enzymes were determined as well as the accumulation of hydrogen peroxide (H2O2) and hydroxyl (•OH)-scavenging activity were assayed. Increasing dosages of boron alone caused more severe growth reduction than combined with PEG 6000-induced drought stress. Induced drought stress caused less accumulation of boron in leaves and roots. B concentration of 1.25 mM caused lipid peroxidation in a reactive oxygen species-independent manner and drought stress-induced lipid peroxidation was alleviated by increasing B dosages. Induced glutathione reductase activity under the combination of 1.25 mM B and PEG 6000-induced drought stress seemed an important physiological response in ‘Kar 98’ plants against multiple stresses.

Details

Title: Oxidative stress responses in watermelon (Citrullus lanatus) as influenced by boron toxicity and drought
Authors/Creators: M. Hamurcu (Author/Creator) - Selçuk University
T. Demiral (Author/Creator) - Harran University
E.E. Hakki (Author/Creator) - Selçuk University
Ö. Turkmen (Author/Creator) - Harran University
S. Gezgin (Author/Creator) - Selçuk University
R.W. Bell (Author/Creator) - Murdoch University
Publication Details: Zemdirbyste-Agriculture, Vol.102(2), pp.209-216
Publisher: Lithuanian Institute of Agriculture
Identifiers: 991005541334707891
Copyright: © 2015, Lithuanian Institute of Agriculture.
Murdoch Affiliation: School of Veterinary and Life Sciences
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 3 Agriculture, Environment & Ecology; 3.4 Crop Science; 3.4.1474 Micronutrient Interactions
Web Of Science research areas: Agriculture, Multidisciplinary
ESI research areas: Agricultural Sciences