Effects of feeding on different host plants on development, reproduction and protective enzymes of Bradysia odoriphaga
In order to explore the influence of Bradysia odoriphaga larvae feeding on different host plants on their development,and try to find out the cause of the variance of development by analyzing the protective enzymes of B.odoriphaga.Four host plants (Chinese chives,lettuce,Chinese spring onion,potato) were chosen to feed the larvae of B.odoriphaga;generation period (egg stage,larval stage,pupal stage) and fecundity were counted,and the protective enzyme system (superoxide dismutase (SOD),catalase (CAT) and peroxidase (POD)) of the larvae of B.odoriphaga feeding on three different hosts were assayed.The next generation of egg stage of B.odoriphaga was the longest (3.23 d) and the larval stage was the shortest (23.83 d) when feeding on lettuce and was significantly different from that when feeding on Chinese chives (3.05 d and 24.16 d,respectively).The developmental duration (egg stage + larvae stage + pupal stage) of B.odoriphaga was the longest (31.91 d) when feeding on Chinese spring onion and significantly different that when feeding on lettuce (30.96d),but not significantly different from those when feeding on potato and Chinese chives (31.87d and 31.64d,respectively).Compared with those feeding on the other three host plants,the longevities of adults (female and male) were longest when feeding on Chinese chives,and the fecundity was maximum.The activities of superoxide dismutase (SOD) on lettuce,Chinese chives and Chinese spring onion were significantly higher than on potato,and there was no significant difference in the three host plants;the activity of peroxidase (POD) on Chinese spring onion was the highest,followed by on Chinese chives;the activity of catalase (CAT) on Chinese chives was significantly higher than on the other three host plants.We concluded that the growth of B.odoriphaga was related to the host plant,and the activities of the three major protective enzyme systems (SOD,CAT,POD) of B.odoriphaga were not the same.
NETL
NSTL
万方数据
维普
