孔雀绿对湛江叉鞭金藻的毒性效应

THE TOXIC EFFECTS OF MALACHITE GREEN ON DICRATERIA ZHANJIANGESIS

在２０℃和３０℃下，用含有不同浓度（０．０２～０．１０μｇ／Ｌ）孔雀绿的海水，在室内用一次培养法培养湛江叉鞭金藻，测定了４天内金藻的生长速率、叶绿素ａ、胡萝卜素和蛋白质含量。结果表明，０．０２μｇ／Ｌ的孔雀绿对金藻有轻微影响，浓度≥０．０４μｇ／Ｌ的孔雀绿能使金藻的生长速率、叶绿素ａ、胡萝卜素和蛋白质含量明显减少。温度对孔雀绿的毒性有明显影响，温度越高，毒性越大。

Under the temperature between 20℃ and 30℃,Dicrateria zhanjiangesis was cultured in the seawater containing different concentrated(0.02～0.10 μg/L) Malachite green, within 4 days,the Malachite green of 0.02 μg/L has a slight effect on Dicrateria, and in the concentrations ≥0.04 μg/L, with concentration of Malachite green increasing,the growth rate,content of chlorophylla, carotene and protein of Dicrateria were reduced markedly.Temperature has an evident effect on toxicity of Malachite green,the higher the temperature is,the greater the toxicity will become.