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- Title
温度胁迫对枣实蝇蛹体内主要抗氧化物酶的影响.
- Authors
李岚洁; 阿地力·沙塔尔
- Abstract
【Objective】 To explore the adaptive mechanism of Carpomya vesuviana Costa with high temperature in Turpan. 【Method】 In this project, the pupae of C. vesuviana were treated with temperature stress to measured the activities of Catalase (CAT), Peroxidase (POD), Superoxide dismutase (SOD) and Malondialdehyde (MDA) at different temperatures (45℃, 43℃, 41℃, 37℃, 33℃, 28℃ (CK), 4℃, and 0℃) for 3, 6 and 9 h, respectively, thus reflecting the changes of the antioxidant enzyme system. 【Result】 The results showed that the MDA content in the pupae of C. vesuviana was significantly higher under high temperature and low temperature stress than that in CK (28℃), The MDA content was the highest at 33℃/6h, and the lowest MDA content was (0.039±0.012) nmol/ (mg protein) at 0℃/9h. Besides, the activity of peroxidase (POD) was highest at 0 ℃/9h and the activity of catalase (CAT) was highest at 4℃/9h in C. vesuviana pupae after heat stress. The activity of superoxide dismutase (SOD) was the highest at 41 ℃ / 9 h, three peaks appeared at low temperature of 0 ℃, 4℃ and high temperature of 41℃. Therefore, the activity of antioxidant enzymes decreased significantly after the peaks of 0-4℃ in the low temperature zone and 41-45 ℃ in the high temperature zone. This decreasing trend was not significant at the treatment temperature of 33-37 ℃. The total antioxidant capacity (T-AOC) activity was highest at 41℃ / 6 h, and it could maintain a high activity value at higher or lower temperatures, and played a role of antioxidant stress stably. 【Conclusion 】 At extreme temperature, heat stress has an extremely significant effect on C. vesuviana, which reveals the effect of temperature stress on the antioxidant enzyme activity of C. vesuviana, and provides a scientific basis for explaining the heat tolerance of C. veswiana from the physiological and biochemical perspective.
- Publication
Xinjiang Agricultural Sciences, 2019, Vol 56, Issue 11, p2062
- ISSN
1001-4330
- Publication type
Article
- DOI
10.6048/j.issn.1001-4330.2019.11.012