Effect of salt stress on growth, antioxidant enzymes activity, lipid peroxidation and photosystem II efficiency in cucumber grafted on cucurbit rootstock

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Madadkhah Esmaeil; BOLANDNAZAR SAHEBALI; OUSTAN SHAHIN

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Journal: Iranian Journal of Horticultural Science Year:2018 | Volume:49 | Issue:2 Page(s): 465-475

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Title

Effect of salt stress on growth, antioxidant enzymes activity, lipid peroxidation and photosystem II efficiency in cucumber grafted on cucurbit rootstock

Author(s)

Madadkhah Esmaeil | BOLANDNAZAR SAHEBALI | OUSTAN SHAHIN | Issue Writer Certificate

Keywords

Antioxidant enzymesQ1

graftingQ2

malondialdehydeQ2

photosynthetic parametersQ1

salinity stressQ1

Abstract

Salinity is considered as one of the major abiotic stress limiting growth and productivity of plants. Identification of physiological and biochemical mechanisms involved in the resistance to salinity can be useful to select salt tolerant rootstocks. For this purpose, an experiment was conducted to investigate the effects of rootstock (three cucurbit rootstock, Shintoza, Cobalt, Rootpower) and salinity stress (0, 40, 60 and 80 mM NaCl) on growth, yield, leaf area, Antioxidant enzymes activity, malondialdehyde (MDA) content and photosynthetic parameters in cucumber (cv. Khasib) leaves were determined, 35 days after salt treatments. Plant Growth parameters in all salinity treatments were significantly higher in grafted plants than non-grafted plants. Grafted plants had 14-21% higher yield than non-grafted plants. The catalase (CAT), ascorbate peroxidase (APX), polyphenol oxidase (PPO) and peroxidase (POD) activity increased as a result of salinity stress, but this increase in grafted plant was 0. 1-2 times of ungrafted plant. Reductions in stomatal conductance at the three salt treatments were significantly lower in the grafted plants in comparison to ungrafted plants. Moreover, lipid peroxidation (MDA content) in grafted plants was 7-12% less than ungrafted plants by salt stress. Maximal quantum yield of PS II (Fv/Fm) of cucumber leaves showed significant difference between grafted and ungrafted plant and this amount was 3-6 percent more than ungrafted plants. Results suggested that increase in activity of Antioxidant enzymes, ratio of Fv/Fm and stomatal conductance in grafted plant could be associated with their greater tolerance to salinity stress.

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APA: Copy

Madadkhah, Esmaeil, BOLANDNAZAR, SAHEBALI, & OUSTAN, SHAHIN. (2018). Effect of salt stress on growth, antioxidant enzymes activity, lipid peroxidation and photosystem II efficiency in cucumber grafted on cucurbit rootstock. IRANIAN JOURNAL OF HORTICULTURAL SCIENCES (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), 49(2 ), 465-475. SID. https://sid.ir/paper/148052/en

Vancouver: Copy

Madadkhah Esmaeil, BOLANDNAZAR SAHEBALI, OUSTAN SHAHIN. Effect of salt stress on growth, antioxidant enzymes activity, lipid peroxidation and photosystem II efficiency in cucumber grafted on cucurbit rootstock. IRANIAN JOURNAL OF HORTICULTURAL SCIENCES (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES)[Internet]. 2018;49(2 ):465-475. Available from: https://sid.ir/paper/148052/en

IEEE: Copy

Esmaeil Madadkhah, SAHEBALI BOLANDNAZAR, and SHAHIN OUSTAN, “Effect of salt stress on growth, antioxidant enzymes activity, lipid peroxidation and photosystem II efficiency in cucumber grafted on cucurbit rootstock,” IRANIAN JOURNAL OF HORTICULTURAL SCIENCES (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), vol. 49, no. 2 , pp. 465–475, 2018, [Online]. Available: https://sid.ir/paper/148052/en

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