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狐尾藻对水体和沉积物中碱性磷酸酶动力学特征的影响

赵海超 王圣瑞 金相灿 焦立新

赵海超, 王圣瑞, 金相灿, 焦立新. 狐尾藻对水体和沉积物中碱性磷酸酶动力学特征的影响[J]. 环境科学研究, 2011, 24(11): 1256-1262.
引用本文: 赵海超, 王圣瑞, 金相灿, 焦立新. 狐尾藻对水体和沉积物中碱性磷酸酶动力学特征的影响[J]. 环境科学研究, 2011, 24(11): 1256-1262.
ZHAO Hai-chao, WANG Sheng-rui, JIN Xiang-can, JIAO Li-xin. Effects of Myriophyllum spicatum on Kinetic Characteristics of Alkaline Phosphatase in Water and Sediments[J]. Research of Environmental Sciences, 2011, 24(11): 1256-1262.
Citation: ZHAO Hai-chao, WANG Sheng-rui, JIN Xiang-can, JIAO Li-xin. Effects of Myriophyllum spicatum on Kinetic Characteristics of Alkaline Phosphatase in Water and Sediments[J]. Research of Environmental Sciences, 2011, 24(11): 1256-1262.

狐尾藻对水体和沉积物中碱性磷酸酶动力学特征的影响

基金项目: 国家水体污染控制与治理科技重大专项(2008ZX07105-005);国家自然科学基金项目(40703017,40873079)

Effects of Myriophyllum spicatum on Kinetic Characteristics of Alkaline Phosphatase in Water and Sediments

  • 摘要: 在室内模拟条件下栽培狐尾藻,通过对上覆水、间隙水和沉积物中碱性磷酸酶动力学参数变化的分析,揭示了沉水植物对湖泊富营养化影响的酶学机制. 结果表明:在试验条件下,栽培狐尾藻使上覆水、间隙水和沉积物中的碱性磷酸酶的最大反应速率(Vmax)均有所降低;狐尾藻对上覆水和底质中碱性磷酸酶反应速率及亲和力的抑制作用比较明显,对间隙水主要是抑制溶解性碱性磷酸酶的Vmax;狐尾藻对土壤中碱性磷酸酶的影响比同一营养水平的沉积物大,与沉积物相比,土壤作底质时上覆水中碱性磷酸酶的Vmax和Km(米氏常数)高,底质中碱性磷酸酶的Vmax和Km低;沉积物中碱性磷酸酶的Vmax呈上升趋势,与上覆水相反,间隙水中碱性磷酸酶的Vmax季节性变化明显,其最高值出现在7—8月.

     

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出版历程
  • 收稿日期:  2011-03-01
  • 修回日期:  2011-05-18
  • 刊出日期:  2011-11-25

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