%0 Journal Article %T 一株产碱性磷酸酶附生菌对微囊藻生长的影响 %T Effect of an attached bacterium of alkaline phosphatase producting on the growth of Microcystis aeruginosa %A 赵婕 %A 李建宏 %A 管章玲 %A 许玲 %A 潘澄 %A 李朋富 %A ZHAO,Jie %A LI,Jianhong %A GUAN,Zhangling %A XU,Ling %A PAN,Cheng %A LI,Pengfu %J 湖泊科学 %J Journal of Lake Sciences %@ 1003-5427 %V 23 %N 1 %D 2011 %P 49-55 %K 微囊藻;藻上附生菌;碱性磷酸酶;Chl.a荧光强度;水华 %K Microcystis aeruginosa;attached bacteria;alkaline phosphatase;Chl.a fluorescence intensity;water bloom %X 为研究产碱性磷酸酶(ALP)细菌对微囊藻(Microcystis aeruginosa)从有机磷中获得磷营养的影响, 从微囊藻群体中分离获得一株产ALP附生菌Y6, 通过ITS分子鉴定该菌属赤杆菌属(Erythrocter).探讨该菌在有机磷条件下对微囊藻生长及生理代谢的影响, 结果表明:(1)细菌发酵液中ALP活性与Y6菌的浓度呈正相关, 在培养初期的延滞期即开始产生ALP;(2)在有机磷源条件下Y6的加入对微囊藻生长有促进作用;(3)有机磷源条件下, Y6有助于维持群体微囊藻的上浮率和较大群体, Y6的加入也有维持藻细胞叶绿索荧光强度的作用.本研究的结果表明, 产ALP附生菌有助于微囊藻利用水体中有机磷, 有利于水华形成。 %X To study the effect of alkaline phosphatase(ALP) bacteria on Microcysfis aeruginosa obtaining phosphorus from organic phosphorus compounds, an attached bacterium strain Y6 which produced ALP was isolated from M.aeruginosa colonies.It was identified as a strain of Erythrobacter by its ITS molecular characteristic.The effects of the bacterium on the growth and physiology of M.aeruginosa in the organic phosphorus condition investigated in this paper.The results show that:(1) ALP activity in the culture broth was positively related Y6 concentration, initial lag phase of incubation began to produce ALP;(2) Under the condition of organic phosphorus, Y6 could promote the growth of M.aeruginosa;(3) Y6 could maintain floating rate and bigger colonies of colonial M.aeruginosa, and hold chlorophyll fluorescence of algal cells in the organic phosphorus medium.This research suggested that ALP producing attached bacteria could help M.aeruginosa using organic phosphorus and forming blooms. %R 10.18307/2011.0108 %U http://www.jlakes.org/ch/reader/view_abstract.aspx %1 JIS Version 3.0.0