中国寄生虫学与寄生虫病杂志 ›› 2000, Vol. 18 ›› Issue (5): 14-311.

• 实验报道 • 上一篇    下一篇

大链壶菌对致倦库蚊幼虫三种酶活性的影响

吴家红,包怀恩
  

  1. 贵阳医学院寄生虫学教研室,贵阳 550004
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2000-10-30 发布日期:2000-10-30

EFFECTS OF LAGENIDIUM GIGANTEUM ON THE ACTIVITIES OF THREE ENZYMES OF CULEX QUINQUEFASCIATUS LARVAE

WU Jia hong;BAO Huai en   

  1. Department of Parasitology;Guiyang Medical College;Guiyang 550004
  • Received:1900-01-01 Revised:1900-01-01 Online:2000-10-30 Published:2000-10-30

摘要:   [目的 ]从生化代谢角度探讨大链壶菌灭蚊机制。 [方法 ]采用酶组织化学方法测定正常蚊幼与不同程度感染大链壶菌的蚊幼体内碱性磷酸酶 (AKP)、酸性磷酸酶 (ACP)及酯酶 (EST)活性 ,用显微摄影及定量图像法进行观察。其中 ,用钙 钴法检测AKP ,硝酸铅法检测ACP ,α 醋酸萘酚法检测EST活性。 [结果 ]用计算机图像分析仪检测 10~ 15个标本的单位面积平均黑度值 ,发现大链壶菌潜在感染蚊幼AKP和ACP活性降低 ,轻度感染和重度感染蚊幼酶活性降低明显 ;而EST活性在不同感染程度蚊幼的各种组织中均呈显著升高趋势。 [结论 ]大链壶菌感染引起蚊幼 3种酶活性变化 ,导致体内新陈代谢障碍 ,可能是其致死蚊幼的原因之一。

关键词: 大链壶菌, 致倦库蚊幼虫, 组织化学

Abstract:  Objective] To investigate the possible mechanism underlying the killing of Culex quinquefasciatus larvae by Lagenidium giganteum from the biochemical point of view. [Methods] The activities of alkaline phosphatase(AKP), acid phosphatase(ACP) and esterase(EST) were observed by using calcium cobalt method, lead nitrate method and naphthol method. Results were photomicrographed and analysed quantitatively by image analysis using computer. [Results] The activities of AKP and ACP were decreased while the activities of EST were increased among the infected groups with different infection intensities. [Conclusions] The changes of these enzyme activities might be one of the important mechanisms of action of Lagenidium giganteum against Culex quinquefasciafus larvae.

Key words: Lagenidium giganteum, Culex quinquefasciatus larva, histochemistry