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引用本文:刘玲莉,顾宇飞,罗屿,马文漪,周子元,蔡后建.一株自太湖微囊藻上分离到的细菌的生长及磷代谢.湖泊科学,2000,12(4):373-378. DOI:10.18307/2000.0412
LIU Lingli,GU Yufei,LUO Yu,MA Wenyi,ZHOU Ziyuan,CAI Houjian.On the Growth and Phosphorous Metabolism of Bacterium Isolated from Microcystis aeruginosu in Taihu Lake. J. Lake Sci.2000,12(4):373-378. DOI:10.18307/2000.0412
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一株自太湖微囊藻上分离到的细菌的生长及磷代谢
刘玲莉1, 顾宇飞1, 罗屿1, 马文漪1, 周子元2, 蔡后建2
1.南京大学污染控制与资源化研究国家重点实验室, 环境学院环境科学系, 南京210093;2.中国科学院南京地理与湖泊研究所, 南京210008
摘要:
磷是引起湖泊水华爆发的关键元素,微囊藻 (Microcystis)是太湖水华的主要藻种,为了研究磷在湖泊水体低级食物链 (细菌、浮游动植物等)中的代谢,以一株自太湖微囊藻上分离的假单胞菌 (Pseudomonas sp.)X菌株为试验菌,研究了磷形态及生长因子对其生长的影响 结果表明无机磷浓度对X菌生长的影响不大,而ATP对X菌的生长有抑制作用;在含有无机磷和有机磷的培养基中,X菌优先利用无机磷盐,X菌还可利用颗粒磷 X菌需要外来生长因子,微囊藻提取液可取代酵母膏提供其所须的生长因子.
关键词:  附生菌  假单孢菌  磷代谢  磷形态  太湖
DOI:10.18307/2000.0412
分类号:
基金项目:国家自然科学基金资助项目(3960025).
On the Growth and Phosphorous Metabolism of Bacterium Isolated from Microcystis aeruginosu in Taihu Lake
LIU Lingli1, GU Yufei1, LUO Yu1, MA Wenyi1, ZHOU Ziyuan2, CAI Houjian2
1.State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing Universit y, Nanjing 210093, P.R.China;2.Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P.R.China
Abstract:
Phosphorous is one of the key elements that lead to eut rophication.Pseudomonas sp.(X strain)was isolated from Microcystis aeruginosu in Taihu Lake.A group of test was designed to study the growth and phosphates [K2HPO4+KH2PO4(1:1)], organic phosphates (ATP), phosphorus fraction and growth factor.The results showed that the growth of X strain was not affected by inorganic phosphates and rest rained by ATP.The strain prefered inorganic phosphorus too rganic one when both available.X strain made use of particular phosphorus and extracted of algae that substituted for yeast extracts as growth factor.
Key words:  Adhesive baceria  Pseudomonas sp.  phosphorus metabolism  phosphorus fraction  Taihu Lake
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