University of Isfahan Journal of Plant Biological Sciences 3041-9603 3 7 2011 05 22 The effect of cold temperature stress on antifreeze protein production and lipid peroxidation in two citrus species The effect of cold temperature stress on antifreeze protein production and lipid peroxidation in two citrus species 97 102 18807 FA Reyhaneh Sariri Department of Biology, Faculty of Natural Sciences University of Guilan, Rasht, Iran Majid Galvani Department of Gardening, Faculty of Agriculture, University of Guilan, Rasht, Iran Reza Fotouhi Ghazvini Department of Gardening, Faculty of Agriculture, University of Guilan, Rasht, Iran Vahab Jafarian Department of Gardening, Faculty of Agriculture, University of Guilan, Rasht, Iran Journal Article 2016 06 14 Quality wise, most citrus species from North of Iran are appreciated by the Iranian peaple. They, therefore, deserve commercial and research value. To protect their cells and tissues from oxidative damage, most plants produce metabolites such as carbohydrates, amino acids, anti-freeze protein and antioxidants. Determination of lipid peroxidation, and detection of anti-freeze protein were used to explore the mechanism by which a plant could resist to cold stress. In this research, two species of citrus family, citrange (Citrus sinensis) and bitter orange (Citrus sinensis x Poncirus trifoliata) were subjected to a range of temperature. Results showed that a protein with molecular weight of 23 KD was produced in both citrus species at temperature below zero degree. On the other hand, lipid peroxidation in both species increased only slightly in response to cold stresses below 0°C. Quality wise, most citrus species from North of Iran are appreciated by the Iranian peaple. They, therefore, deserve commercial and research value. To protect their cells and tissues from oxidative damage, most plants produce metabolites such as carbohydrates, amino acids, anti-freeze protein and antioxidants. Determination of lipid peroxidation, and detection of anti-freeze protein were used to explore the mechanism by which a plant could resist to cold stress. In this research, two species of citrus family, citrange (Citrus sinensis) and bitter orange (Citrus sinensis x Poncirus trifoliata) were subjected to a range of temperature. Results showed that a protein with molecular weight of 23 KD was produced in both citrus species at temperature below zero degree. On the other hand, lipid peroxidation in both species increased only slightly in response to cold stresses below 0°C. https://ijpb.ui.ac.ir/article_18807_542b03024d042b3c896bcb6c00e7b65c.pdf