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以甲藻门的东海原甲藻、塔玛亚历山大藻、裸甲藻,黄藻门的赤潮异弯藻,硅藻门的中肋骨条藻等典型的赤潮生物以及绿藻门的青岛大扁藻和亚心形扁藻两种非赤潮生物为目标生物,探讨了烷基糖苷季铵盐(APG-131)类表面活性剂的抑藻活性。结果表明,该表面活性剂在较低的浓度范围内(<0.5 mg/L),对东海原甲藻、塔玛亚历山大藻和赤潮异弯藻等赤潮生物的生长有明显的抑制作用。当该季铵盐的浓度增加至1.0 mg/L以上时,可完全抑制中肋骨条藻的生长,而在相同的浓度范围内,对裸甲藻和所选2种非赤潮生物生长影响不明显,表现出了抑藻作用的种属特异性。结合各海洋微藻的脂肪酸组成分析,证实了该表面活性剂选择性抑藻作用与不同海洋微藻的多不饱和脂肪酸的含量明显相关。
Phytoplankton of the Protocormcon tibetan, Alexandria tamarense, naked dinoflagellates, Xanthomonas algae red tide algae, Bacillariophyta sarcandrae and other typical red tide organisms, And Platymonas subclass two non-red tide organisms as target organisms, to explore the alkyl algite quaternary ammonium salt (APG-131) surfactants inhibit algae activity. The results showed that the surfactant at a lower concentration (<0.5 mg / L) significantly inhibited the growth of red tide organisms such as Prorocentrum donghaiense, Alexandrium tamarense and Heterosigma akashiwo. When the concentration of quaternary ammonium increased above 1.0 mg / L, the growth of S. costatum could be completely inhibited. However, in the same concentration range, there was no obvious effect on the growth of Gymnosperm both and non-red tide organisms , Showing the species-specific nature of algal blooms. Combined with the analysis of fatty acid composition of each marine microalgae, it is confirmed that the selective algicidal effect of the surfactant is significantly related to the content of polyunsaturated fatty acids in different marine microalgae.