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引用本文:冯胜,秦伯强,高光.太湖磷转化细菌与水体磷形态关系.湖泊科学,2008,20(4):428-436. DOI:10.18307/2008.0404
FENG Sheng,QIN Bo-qiang,GAO Guang.The relationships between phosphorus-transmuting bacteria and phosphorus forms in Lake Taihu. J. Lake Sci.2008,20(4):428-436. DOI:10.18307/2008.0404
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太湖磷转化细菌与水体磷形态关系
冯胜1, 秦伯强2, 高光2
1.中国科学院厦门城市环境研究所, 厦门 361003;2.中国科学院南京地理与湖泊研究所, 南京 210008
摘要:
太湖水体中不同形态磷含量与磷转化细菌的关系研究结果显示:太湖水体中总磷和活性磷的含量分别为0.113mg/L和0.011mg/L;无机磷和有机磷分解菌在底泥中达6.73×105 cells/g,而在水体中仅为71cells/ml,且存在明显的时间和空间差异;根据菌落形态特征,分离筛选了3株有代表性的无机磷转化菌和7株占优势的有机磷分解菌.3株无机磷转化菌经鉴定分别与巨大芽孢杆菌(Bacillus megaterium)、假单孢菌(Pseudomonas sp.)和类芽孢杆菌(Paenibacillus sp.)比较接近.而7株有机磷分解菌则分别与为苏云金芽孢杆菌(Bacillus thurigiensis)、短小芽孢杆菌(Bacillus pumilus)、芽孢杆菌(Bacillus sp.)、无芽孢杆菌(Bacterium sp.)、氧化微杆菌(Microbacterium oxydans)腊状芽孢杆菌(Bacillus cereus)、简单芽孢杆菌(Bacillus simples)接近;太湖水体中磷分解细菌主要归属于芽孢杆菌属(Bacillus)和假单孢菌属(Pseudomonas),对细菌降解性能进行研究的结果显示:无机磷分解细菌对太湖水体活性磷的贡献显著大于有机磷分解细菌的贡献率.
关键词:    磷分解细菌  太湖
DOI:10.18307/2008.0404
分类号:
基金项目:中国科学院知识创新方向性项目(KZCX2-YW-419);国家自然科学基金(40573062)联合资助
The relationships between phosphorus-transmuting bacteria and phosphorus forms in Lake Taihu
FENG Sheng1, QIN Bo-qiang2, GAO Guang2
1.Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361003, P.R.China;2.Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P.R.China
Abstract:
The average contents of total phosphorus and active phosphorus concentration were 0.113mg/L and 0.011mg/L, respectively; the inorganic phosphorus-degrading bacteria and organic phosphorus-degrading bacteria in the sediment was 6.73×105 cells/g dry sediment, but it was only 71cells/g in the water, and there was also significant temporal and spacial difference. According to the bacteria group's shape, 3 representative inorganic phosphorus-degrading bacteria and 7 dominant organic phosphorusdegrading bacteria were isolated. Identification showed that the 3 representative inorganic phosphorus-degrading bacteria were similar to Bacillus megaterium, Pseudomonas sp. and Paenibacillus sp. The 7 dominant organic phosphorus-degrading bacteria were similar to Bacillus thurigiensis, Bacillus pumilus, Bacillus sp., Bacterium sp., Microbacterium oxydans, Bacillus cereus and Bacillus simples. The phosphorus-degrading bacteria of Lake Taihu were classified into Bacillus and Pesudomonas. The contribution of inorganic phosphorus-degrading bacteria for the aquatic bioavailable phosphorus was greater than that of organic phosphorus-degrading bacteria.
Key words:  Phosphorus  phosphorus-degrading bacteria  Lake Taihu
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