जर्नल ऑफ़ प्लांट जेनेटिक्स एंड ब्रीडिंग

खुला एक्सेस

हमारा समूह 1000 से अधिक वैज्ञानिक सोसायटी के सहयोग से हर साल संयुक्त राज्य अमेरिका, यूरोप और एशिया में 3000+ वैश्विक सम्मेलन श्रृंखला कार्यक्रम आयोजित करता है और 700+ ओपन एक्सेस जर्नल प्रकाशित करता है जिसमें 50000 से अधिक प्रतिष्ठित व्यक्तित्व, प्रतिष्ठित वैज्ञानिक संपादकीय बोर्ड के सदस्यों के रूप में शामिल होते हैं।

ओपन एक्सेस जर्नल्स को अधिक पाठक और उद्धरण मिल रहे हैं
700 जर्नल और 15,000,000 पाठक प्रत्येक जर्नल को 25,000+ पाठक मिल रहे हैं

अमूर्त

Cold stress in apple: the antioxidant defense mechanisms for the prediction of sunscald disorder during postharvest storage

Besma Kahlaoui

Abiotic stresses, including low temperatures, severely af- fect yield and productivity of plants worldwide. Detection and signalling of low temperature is a complex process and dramatically alters the physiological, biochemical and morphological processes of plants. In addition of these effects in plants, cold stress promotes the development of a physiological disorder in fruits: sunscald. It af- fects the postharvest quality of apple (Malus domestica Borkh) leading to important economic losses worldwide. In this study, Granny Smith apple was harvested from ho- mogenous trees. Five replicates of 100 apples per replicate per sunburn category were stored at 0-2 °C. Fruit clas- sification was done according the following categories: ‘Exposed’ (Exp), ‘Moderate’ (Mod) and ‘Severe’ (Sev). As results, significant decrease in protein, SOD, MDHR and GR activities were signaled in the case of the severity category (Sev.) compared to the others of sunburn category (Mod and Exp). The activity of DHAR was the same in all the categories (Exp, Mod and Sev.) of the fruit during the storage period. As a conclusion, all the fruits related to the suburn category have almost no antioxidant metab- olism and antioxidant enzymes to deal with post-harvest oxidative stress. These antioxidant systems have already been overwhelmed due to photo-oxidative stress in the field.