The role of calcium in improving photosynthesis and related physiological and biochemical attributes of spring wheat subjected to simulated acid rain

Aria Dolatabadian, Seyed Ali Mohammad Modarres Sanavy, Majid Gholamhoseini, Aydin Khodaei Joghan, Mohammad Majdi, Arman Beyraghdar Kashkooli

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

The response of photosynthesis parameters, catalase, superoxide dismutase and peroxidase activity, malondialdehyde, proline, chlorophyll, yield and yield components to foliar application of calcium and simulated acid rain in wheat were investigated. Foliar treatment of calcium led to significant increases in the photosynthesis rate, transpiration rate, stomatal conductance, proline, chlorophyll, yield and yield components in plants subjected to acid rain. Antioxidant enzyme activity and lipid peroxidation in the wheat leaves decreased because of calcium foliar application. Calcium hindered degradation of the rubisco subunits under acid rain treatment compared with water-treated plants. Results suggest that acid rain induces the production of free radicals resulting in lipid peroxidation of the cell membrane so that significant increase in antioxidant enzyme activity was observed. In addition, photosynthetic parameters i.e. photosynthesis rate, transpiration rate and stomatal conductance were drastically suppressed by acid rain. The cellular damage caused by free radicals might be reduced or prevented by a protective metabolism including antioxidative enzymes and calcium. We report that foliar application of calcium before acid rain may ameliorate the adverse effects of acid rain in wheat plants.

Original languageEnglish
Pages (from-to)189-198
Number of pages10
JournalPhysiology and Molecular Biology of Plants
Volume19
Issue number2
DOIs
Publication statusPublished - Apr 2013
Externally publishedYes

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