氮磷营养盐对四种淡水丝状蓝藻生长的影响  

Influence of nitrogen and phosphorus on growth of four filamentous cyanobacteria strains in freshwater

作　　者：王文杰[1] 姚旦[1] 赵辰红[1] 薛静[1] 沈颂东[1] 

机构地区：[1]苏州大学基础医学与生物科学学院,苏州215123

出　　处：《生态科学》2008年第4期202-207,共6页Ecological Science

摘　　要：通过设定不同的氮、磷营养盐浓度,在实验室条件下研究了不同浓度的氮和磷对4种淡水丝状蓝藻:皮质颤藻、尖细颤藻、蛇形颤藻和坑形细鞘丝藻生长的影响。结果表明,皮质颤藻和坑形细鞘丝藻对高浓度的氮、磷有着较强的适应能力,在硝态氮浓度0.016 mg·mL-1～2.0 mg·mL、磷浓度1.36 mg·mL-1～13.6μg·mL时生长较好。4株藻在只存在氨态氮的情况下生长都受到抑制。Four filamentous cyanobacteria strains Oscillatoria cortiana, Oscillatoria acuminate, Oscillatoria anguina and Leptolyngbyafoveolara in freshwater were studied under laboratory conditions. Experiments were performed to determine their growth in the presence of a wide range of concentrations of nitrogen and phosphorus. The results showed that O. cortiana and L. foveolara had a greater adaptability to survive in high concentration of nitrogen or phosphorus than the others, and they grew well with a concentration of NO3^--N from 0.016 to 2.0 mg·mL^-1 or phosphorus ranging from 1.36 to 13.6 μg·mL^-1. Growth of four strains was inhibited under the condition in which only NH4^＋-N was supplied.

关 键 词：丝状蓝藻 氮 磷 生长 

分 类 号：X172[环境科学与工程—环境科学]