光限制胁迫协同pH与氮磷比对铜绿微囊藻生长的影响  

Synergistic Effects of Light Limitation,pH and Ratio of N/P on the Growth of Microcystis Aeruginosa

作　　者：毕相东[1,2] 张树林[1,2] 刘红玉[1,2] 邢克智[1,2] 

机构地区：[1]天津农学院水产科学系,天津300384 [2]天津农学院天津市水产生态及养殖重点实验室,天津300384

出　　处：《信阳师范学院学报（自然科学版）》2014年第1期38-41,共4页Journal of Xinyang Normal University(Natural Science Edition)

基　　金：国家自然科学基金项目(31300393;31170442);天津市高等学校科技发展基金计划项目(20120624);天津市应用基础及前沿技术研究计划重点项目(10JCZDJC18000)

摘　　要：以铜绿微囊藻为试验材料,应用正交试验法,在培养温度(25℃)及接种量相同的情况下,研究光限制胁迫协同pH与氮磷比对铜绿微囊藻生长的影响.影响铜绿微囊藻生长的因素顺序为:pH>光限制胁迫天数>氮磷比,pH为铜绿微囊藻生长的显著性影响因素(F=63.111 5),且在pH 10.5、氮磷比15∶1及光限制胁迫5 d的条件下正常光照培养4 d后藻细胞数量最大.The synergistic effects of pH value , ratio of N/P, and light limitation on the growth of Microcystis aeruginosa were investigated by orthogonal tests .Results of orthogonal test for the selective preference of the growth condition for M .aeruginosa showed that pH can significantly affect the growth of M .aeruginosa, and the optimal factor combination is pH 10.5, stress of 5 days and 15/1 for N/P.Under 25℃, the order of effect on the M .aeruginosa is pH＆gt;stress of light limitation ＆gt;N/P, detected after cultured under normal light intensity for 4 days.

关 键 词：铜绿微囊藻 光限制胁迫 氮磷比 正交试验 

分 类 号：X172[环境科学与工程—环境科学]