广西科学院学报2016，Vol.32Issue(3)：215-220,6.DOI:10.13657/j.cnki.gxkxyxb.20160826.008
芽孢杆菌组合对海水养殖水体COD的降解效果
Study on COD Degradation Capability of Bacillus Combinations
摘要
Abstract
Objective]To improve the water quality in high stocking density of industrial aqua-culture,a kind of strain combination,with degradation capability better than single strain, was found.[Methods]Several bacterial strains with good degradation property were separated from Stichopus japonicus culture ponds.Antagonistic effect between strains was studied.Ac-cording to the results of the antagonistic effect,the degradation capability of COD of the combinations of 2 or 3 strains were studied.[Results]The mean COD of the combinations of two strains at the 6th day was 422.57 mg/mL,and standard deviation was 63.85.The mean COD of the combinations of three strains at the 6th day was 365.61 g/mL and the standard deviation was 67.63.The results showed that combinations of three strains compared to com-binations of two strains were easier to get a combination with better degradation efficiency.[Conclusion]Finally,the optimal combination was C14(strain B2,strain B6,strain B11)with COD degradation rate of 64.29%.The strain B2,strain B6 and strain B11 were separately identified as Bacillus subtilis,Bacillus megaterium and Bacillus alcalophilus.The re-sult was a reference for future applications of strains.关键词
芽孢杆菌/降解性能/组合Key words
Bacillus/degradation capability/combination分类
农业科技引用本文复制引用
辛美丽,宋爱环,王志刚,胡凡光,逄劭楠,孙福新..芽孢杆菌组合对海水养殖水体COD的降解效果[J].广西科学院学报,2016,32(3):215-220,6.基金项目
海洋公益性行业科研专项经费项目(201305005)和海洋经济创新发展区域示范项目资助。 （201305005）
