摘要
研究了肟醚类杀虫剂 HNPC- A990 8[O- (3-苯氧苄基 ) - 2 -甲硫基 - 1- (4-氯苯基 )丙基酮肟醚 ]对蛋白核小球藻 Chlorella pyrenoidosa生长的毒性效应 ,结果表明 ,HNPC- A990 8对蛋白核小球藻细胞生长具有一定的抑制作用 ,其抑制程度与药剂浓度呈正相关。当以丙酮为溶剂时 ,HNPC- A990 8对蛋白核小球藻的 96 h- EC50 值为 3.14 mg/ L,以乙酸乙酯为溶剂时为 2 5 .2 mg/ L。参照国家有关建议评价标准 ,HNPC- A990 8对蛋白核小球藻属于低毒。此外 ,HNPC- A990 8对蛋白核小球藻的光合色素含量也具有一定的影响 ,其中以对叶绿素
HNPC A9908 [ O (3 phenoxybenzyl) 2 methylmercapto 1 (4 chlorophenyl) propyl ketone oxime] is a novel insecticide which is effective in controlling various pest insects on vegetable, rice and other crops. Toxicity of HNPC A9908 to the green algae Chlorella pyrenoidosa was studied in the laboratory through 96～120 h acute toxicity tests using the algae test flasks. The experimental results showed that HNPC A9908 had some inhibition to the growth of the algae, and its 96 h EC 50 value in acetone and in ethyl acetate is 3.14 mg/L and 25.2 mg/L, respectively, indicating that HNPC A9908 was considered as a low toxic pesticide to the green algae. In addition, HNPC A9908 also exhibited some inhibitory effects on the photosynthesis pigments such as chlorophyll a and chlorophyll b, the greatest inhibition was observed in chlorophyll a of the algae.
出处
《农药学学报》
CAS
CSCD
2002年第4期45-50,共6页
Chinese Journal of Pesticide Science
基金
国家科技攻关项目 (2 0 0 1BA30 8A0 2 - 10 )
