Superoxide Dismutase, Catalase, and α-Tocopherol Content of Stored Potato Tubers
نویسندگان
چکیده
منابع مشابه
Fatty acids, membrane permeability, and sugars of stored potato tubers.
The relationships of potato (Solanum tuberosum L.) tuber membrane permeability and membrane lipid composition to sugar accumulation were examined. Tubers from four potato cultivars were stored for 40 weeks at 3 degrees C and 9 degrees C. Rates of tuber membrane electrolyte leakage, total fatty acid composition, free fatty acid composition, and sugar content were measured throughout the storage ...
متن کاملDecreased sucrose content triggers starch breakdown and respiration in stored potato tubers (Solanum tuberosum).
To change the hexose-to-sucrose ratio within phloem cells, yeast-derived cytosolic invertase was expressed in transgenic potato (Solanum tuberosum cv. Desirée) plants under control of the rolC promoter. Vascular tissue specific expression of the transgene was verified by histochemical detection of invertase activity in tuber cross-sections. Vegetative growth and tuber yield of transgenic plants...
متن کاملMeasurement of the water potential of stored potato tubers.
A method of measuring the water potential of stored potato tubers (Solanum tuberosum L.) was needed to investigate the relationship of bacterial soft rot in tubers to water potential. Pressure chamber measurements, while useful for tubers with functional stolons, cannot be made on stored tubers. Measurements could be made on excised tissue pieces in a hygrometer chamber and with hygrometers imp...
متن کاملBrain tumor and role of ß-carotene, α- tocopherol, superoxide dismutase and glutathione peroxidase
The erythrocyte levels of the antioxidant enzymes SOD and GPx, and serum levels of antioxidants vitamins β-carotene and β tocopherol were estimated in various types of brain tumors, and were compared with the levels in controls. Statistically significant (P<.001) diminished levels of βcarotene, β-tocopherol, SOD and GPx, were observed in all the brain tumor patients as compared to controls. Ma...
متن کاملIncreased Serum Superoxide Dismutase and Catalase Activities in Streptozotocin-Induced Diabetic Rats
Abstract Background and Objective: One of the diabetes complications is the tissue damage caused by the imbalance of oxidants and antioxidants (oxidative stress). The aim of the present study was to evaluate the activity of two antioxidant enzymes -superoxide dismutase and catalase- in the serum of streptozotocin-induced diabetic rats. Material and Methods: This investigation was conduct...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Plant Physiology
سال: 1990
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.94.3.1214