Effect of tepa, shikonin and ecdysone on the alkaline phosphatase in the larvae Aedes aegypti (L.).

Effect of shikonin, tapa and ecdysone was studied on the activity of alkaline phosphatase by biochemical and histochemical methods. Tepa and shikonin (sterilants) inhibited the enzyme activity while ecdysone slightly increased the activity. This behaviour has been discussed in the present paper.