Leaf Pigments Help Almond Explants Tolerating Osmotic Stress
نویسندگان
چکیده
This study was conducted to evaluate the response of almond genotypes to osmotic stress in vitro in order to screen drought tolerance. Explants subjected to polyethyleneglycol osmotic stress (0, 3.5, and 7.0% WV) on the MS medium. Concentrations of photosynthesis pigments, anthocyanins, and carothenoids were significantly reduced under osmotic stress. Under osmotic stress, leaf water content, cellular membrane stability and pigments concentrations were significantly higher in the leaves of drought tolerant genotypes. The results revealed that carotenoids and anthocyanins may act as photoprotectant compounds in almond leaves and involved in drought tolerance system of the plant. Keywords—Almond, Anthocianins, Carotenoids, in vitro, Leaf Osmotic Stress, Leaf Pigments, Polyethylene Glycol.
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Responses of Almond Genotypes to Osmotic Stress Induced In Vitro
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