不同诱导源诱导家蝇幼虫抗菌蛋白效果的比较

目的比较5种诱导源所诱导产生家蝇幼虫抗菌蛋白的抗菌活性,观察不同诱导源对家蝇幼虫抗菌蛋白产生的诱导效果.方法用金黄色葡萄球菌、大肠埃希菌、大肠埃希菌脂多糖、紫外线及热诱导家蝇幼虫,在诱导后不同时间提取抗菌蛋白进行抑菌实验,观察不同诱导源诱导后抗菌蛋白产生的高峰时间,并比较各诱导组高峰时间产生抗菌蛋白的抗菌活性.结果各诱导组诱导家蝇幼虫产生抗菌蛋白达最大活性时间为诱导后36～48 h（热诱导后家蝇幼虫很快化蛹,未观察抗菌蛋白产生高峰时间）;金黄色葡萄球菌诱导后的抗菌蛋白抗菌活性最佳,热诱导后的抗菌蛋白抗菌活性也较未诱导组好.结论各诱导源诱导后抗菌蛋白产生的高峰时间不同;细菌诱导的抗菌蛋白抑菌效果最好,热诱导也是一种较理想的诱导方法.

Comparison of the Effect of Different Inducements Inducing the Antibacterial Proteins in the Musca domestica Larvae

Objective To compare antibacterial activity of antibacterial protein in the Musca domestica larvae by five inducements and observe the effect of the different inducements. Methods The M.domestica larvae were treated by S.aureus, E.coli,LPS,ultraviolet radistion and heat-shock. Antibacterial protein by five inducements were separated at different time,detected their antibacterial activity to observe the peak time of antibacterial activity by five inducements,and compared antibacterial activity at the peak of antibacterial protein by five inducements. Results The peak of antibacterial activity appeared at 36-48 hafter induced by four inducements (Because many M.domestica larvae pupated,we did not observe the peak of antibacterial activity by heat-shock). The antibacterial activity of antibacterial proteins by S.aureuswas best,and the antibacterial activity of antibacterial proteins by heat-shock was better than control group. Conclusion The peak of antibacterial proteins by different inducements appeared at different time. The antibacterial activity of antibacterial proteins by injected bacteria was best, and heat-shock was also a better method.