杀虫剂Zectran（灭害威）对几种藻类的影响。

Effects of the insecticide Zectran (Mexacarbate) on several algae.

作者信息

Sheridan R P, Simms M A

出版信息

Bull Environ Contam Toxicol. 1975 May;13(5):565-9. doi: 10.1007/BF01685180.

Abstract

Field samples of freshwater algae were examined to determine the effect of the insecticide Zectran on photosynthesis rate. Concentrations of Zectran between 10 and 10(3) parts per billion (ppb) affected neither O2 production nor NaH14CO3 uptake in any of the seven genera tested. However, Zectran at a concentration of 10(4) ppb after 1 hour effected a reduction in photosynthesis of Chroococcus, Oedogonium and in a mixed sample composed of Zygnema,Mougeotia and Spirogyra. Mougeotia, Spirogyra and Schizogonium were not affected by exposure to 10(4) ppb Zectran after 1 hour, but O2 production was significantly reduced after 24 hours of exposure to this same concentration.

摘要

对淡水藻类的野外样本进行了检测，以确定杀虫剂西维因对光合作用速率的影响。在10至10³十亿分之一（ppb）浓度范围内的西维因，对所测试的七个属中的任何一个属的氧气产生或碳酸氢钠（NaH¹⁴CO₃）吸收均无影响。然而，10⁴ ppb浓度的西维因在1小时后会使色球藻、鞘藻以及由双星藻、转板藻和水绵组成的混合样本的光合作用降低。转板藻、水绵和裂丝藻在暴露于10⁴ ppb西维因1小时后未受影响，但在暴露于该相同浓度24小时后，氧气产生显著降低。