不同氮磷比对铜绿微囊藻及附生假单胞菌磷代谢的影响  

EFFECTS OF N/P RATIO ON PHOSPHORUS METABOLISM OF MICROCYSTIS AERUGINOSA AND ADHESIVEPSEUDOMONAS SP

作　　者：邹迪[1] 肖琳[1] 杨柳燕[1] 马喆[1] 万玉秋[1] 

机构地区：[1]污染控制与资源化国家重点实验室,南京大学环境学院南京210093

出　　处：《环境化学》2005年第6期647-650,共4页Environmental Chemistry

基　　金：国家自然科学基金(40371102);"973"(2002CB412307)资助项目

摘　　要：以铜绿微囊藻及其附生假单胞菌X菌株为研究对象,研究了不同氮磷比对铜绿微囊藻和假单胞菌之间磷代谢的影响.结果发现,无论有无附生菌存在,铜绿微囊藻在氮磷比为16∶1时,生长情况最好,此时微囊藻能迅速有效地吸收水中的磷,而且附生菌的存在能促进藻的生长.而在氮磷比为4∶1时,藻的生长情况最差,在实验后期,藻细胞死亡分解后把一些含磷化合物释放到了水中,附生菌的存在能够加速藻细胞的衰亡和藻体内磷的释放.In this paper, the effects of different N/P ratio on the relationship of P metabolism between M. aeruginosa and attached Pseudomonas sp. （X strain） were studied. Whether the attached bacteria was presence or not, M. aeruginosa grew better and adsorbed P from the medium quickly and effectively under the N/P ratio 16： 1. The presence of attached bacteria could promote the growth of M. aeruginosa. M. aeruginosa grew the worst under the N/P ratio 4： 1. When it deceased and decomposed it released some phosphorous compounds to the medium. The presence of attached bacteria could accelerate the decease of M. aeruginosa.

关 键 词：铜绿微囊藻 附生假单胞菌 氮磷比. 

分 类 号：X52[环境科学与工程—环境工程]