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Protective systems against active oxygen species in spinach: response to high light stress and Mg deficiency



Protective systems against active oxygen species in spinach: response to high light stress and Mg deficiency



Egyptian Journal of Biology 6: 62-71



The influence of different light intensities (250, 500 & 1000 W/m2) and sufficient and deficient magnesium supplies on the antioxidant defence system were studied in Spinacia oleracea plants. It was found that high light intensity in combination with Mg-deficiency induced significant decrease in dry matter and significant increases in total carbohydrates and anthocyanin contents. However, significant decreases in aminolaevulinic acid (ALA), Chl.a&b and carotenoids were recorded.

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