Growth behavior and physiological characteristics of Chlorella vulgaris in the presence of deicing salt
The negative effect of deicing salt on surface water have been reported by a number of studies,but there is a lack of knowledge about the effects of deicing salt on the growth behavior and the change of biochemical composition of algal Chlorella vulgaris (C vulgaris).Algal were cultured at different concentration of deicing salt,algal cell densities,chlorophyll (a),protein and polysaccharides contents were measured.The results of this work showed that deicing salt had statistically significant inhibitory effects (P<0.01) on the cell growth of algae,and the best-fit predictive equation of algal cell densities (Dalgal,algal cells m/l) versus concentration of deicing salt (Csalt,g/l) after 7-day culture in this experiment was presented as a quadratic equation with Csalt being the independent variable and Dalgal being the dependent variable (R2=0.944,P<0.01).The contents of chlorophyll (a) in C.vulgaris cell exposed to different concentrations of deicing salt suggested that the chlorophyll (a) content significantly decreased (P<0.05) with the concentration of deicing salt higher than 4 g/l.Deicing salts also caused the trend of proteins contents decrease in C.vulgaris cells,and significantly increased (P<0.05) the contents of polysaccharides in algae cell at 2 g/1 deicing salt,however,the change of that was not significantly affected at deicing salt concentrations higher than 2 g/l.
deicing salt chlorelta vutgaris algal cell densities chlorophyll a protein polysaccharides
Fayun Li Guoqiang Wu Shui Hu Zhiping Fan Qun Gao
Institute of Eco-environmental Sciences, Liaoning Shihua University, Fushun 113001, China;School of Department of General Surgery, the General Hospital of Shenyang Military Area Command, Shenyang 1100 School of Environmental Science, Liaoning University, Shenyang 110036,China Institute of Eco-environmental Sciences, Liaoning Shihua University, Fushun 113001, China
国际会议
2013 International Symposium on Environmental Science and Technology(2013环境科学与技术国际会议)
大连
英文
15-19
2013-06-04（万方平台首次上网日期，不代表论文的发表时间）