一株嗜盐菌的分离鉴定及其降解甲基绿的实验

产丹丹; 熊晶晶; 张家胜; 武超

doi:10.13205/j.hjgc.201909015

一株嗜盐菌的分离鉴定及其降解甲基绿的实验

doi: 10.13205/j.hjgc.201909015

安徽大学资源与环境工程学院

基金项目:

安徽大学青年骨干教师培养项目(J01005132)

国家自然科学基金项目(31670126)

安徽省高校优秀青年人才支持计划项目(gxyq2018001)

安徽大学高层次人才引进项目(01001770)

详细信息

作者简介:
产丹丹(1993-),女,硕士研究生,主要研究方向为废弃物资源化。1054021384@qq.com

通讯作者:
武超(1981-),男,博士,副教授,主要研究方向为异化金属还原细菌的呼吸作用和电子传递的分子机制及环境应用。wuchao@ahu.edu.cn

中图分类号: X172;X703
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出版历程
- 收稿日期: 2018-09-27
- 网络出版日期: 2023-11-24
- 刊出日期: 2019-09-30

摘要

摘要: 从舟山双峰盐场的盐田中分离筛选得到一株可降解碱性染料甲基绿细菌Salinivibrio kushneri DD-1。研究了该菌株最佳的生长盐浓度以及在不同NaCl浓度、甲基绿浓度、pH值以及O₂浓度对该菌株降解甲基绿的影响,并对其降解产物进行分析。结果表明:该菌株为一株嗜盐菌,最佳生长盐浓度为50 g/L。脱色实验中,Salinivibrio kushneri DD-1在ρ(NaCl)为50 g/L时脱色率最高,达到95%;对低浓度甲基绿(<25 mg/L)的脱色效果较好;脱色率随pH升高而增大,该菌株在碱性条件下对甲基绿的脱色效果更佳; Salinivibrio kushneri DD-1在厌氧条件下无法降解甲基绿,随着O₂浓度升高,脱色效果逐渐增强。甲基绿降解产物主要为4-(N,N-二甲基氨基)-4'-(N',N'-二甲基氨基)二苯甲酮、4-(N-乙基-N,N-二甲基氨基)-4'-(N',N'-二甲基氨基)二苯甲酮、[4-(N-乙基-N,N-二甲基氨基)][4'-(N',N'-二甲基氨基)][4″(N″,N″-二甲基氨基)]三苯基甲醇。
- SalinivibriokushneriDD-1 /
- 甲基绿 /
- 脱色 /
- 产物分析 /
- 嗜盐菌

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参考文献(20)

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