Effect of temperature on the survival rate and antioxidant enzymes activity of Atractomorpha sinensis
In order to clarify the effects of different temperatures on the survival rate of adult Atractomorpha sinensis and the activities of antioxidant enzymes in vivo.In the temperature range of 24℃~40℃,the healthy adults of A.sinensis were divided into groups and treated in biochemical incubator for 4 h.The survival rate of adults and the activities of antioxidant enzymes(SOD,CAT,POD),total antioxidant capacity(T-AOC)and malondialdehyde(MDA)content were measured under different temperature.The survival rate of adults was higher than 50%in the range of 24℃~34℃,and the survival rate of adults treated at other temperatures was significantly reduced.In the temperature range of the experiment,the activities of three antioxidant enzymes in the A.sinensis increased initially and then decreased with the increase of temperature.The activities of SOD,POD and CAT in female and male adults were the highest at 32℃.The changes of T-AOC activity,MDA content and antioxidant enzyme activity were similar,and both of them reached the highest at 34℃.There were differences in the adaptability of A.sinensis to different temperatures.Excessively high temperature was not conducive to its population survival,and was this phenomenon was closely related to its antioxidant enzyme activity.The antioxidant enzyme activity of female adults was higher than that of male adults.Females were more adaptable to temperature changes.