QIBEBT-IR  > 分子微生物工程研究组
Isolation and characterization of a chromium-resistant bacterium Serratia sp Cr-10 from a chromate-contaminated site
Zhang, Kundi; Li, Fuli
2011-05-01
发表期刊APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
卷号90期号:3页码:1163-1169
摘要

A novel bacterium, Cr-10, was isolated from a chromium-contaminated site and capable of removing toxic chromium species from solution by reducing hexavalent chromium to an insoluble precipitate. Sequence analysis of 16S rRNA gene of strain Cr-10 showed that it was most closely related to Serratia rubidaea JCM 1240(T) (97.68%). Physiological and chemotaxonomic data also supported that strain Cr-10 was identified as Serratia sp., a genus which was never specially reported chromate-resistant before. Serratia sp., Cr-10 was tolerant to a concentration of 1,500 mg Cr(VI) L-1, which was the highest level reported until now. The optimum pH and temperature for reduction of Cr(VI) by Serratia sp. Cr-10 were found to be 7.0 and 37 A degrees C, respectively. The Cr(VI) reduction was significantly influenced by additional carbon sources, and among them fructose and lactose offered maximum reduction, with a rate of 0.28 and 0.25 mg Cr(VI) L-1 h(-1), respectively. The cell-free extracts and filtrate of the culture were able to reduce Cr(VI) while concentration of total chromium remained stable in the process, indicating that the enzyme-catalyzed mechanism was applied in Cr(VI) reduction by the isolate. Additionally, it was found that there was hardly any chromium on the cell surface of the strain, further supporting that reduction, rather than bioadsorption, plays a major role in the Cr(VI) removal.

文章类型Article
关键词Cr(Vi) Reduction Serratia Sp. Batch Reduction Bioremediation
WOS标题词Science & Technology ; Life Sciences & Biomedicine
DOI10.1007/s00253-011-3120-y
关键词[WOS]CELL-FREE-EXTRACT ; PSEUDOMONAS-AERUGINOSA ; HEXAVALENT CHROMIUM ; ESCHERICHIA-COLI ; REDUCTION ; IDENTIFICATION ; GENES ; NOV
收录类别SCI
语种英语
WOS研究方向Biotechnology & Applied Microbiology
WOS类目Biotechnology & Applied Microbiology
WOS记录号WOS:000289520000036
引用统计
被引频次:56[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qibebt.ac.cn/handle/337004/6573
专题分子微生物工程研究组
作者单位Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China
推荐引用方式
GB/T 7714
Zhang, Kundi,Li, Fuli. Isolation and characterization of a chromium-resistant bacterium Serratia sp Cr-10 from a chromate-contaminated site[J]. APPLIED MICROBIOLOGY AND BIOTECHNOLOGY,2011,90(3):1163-1169.
APA Zhang, Kundi,&Li, Fuli.(2011).Isolation and characterization of a chromium-resistant bacterium Serratia sp Cr-10 from a chromate-contaminated site.APPLIED MICROBIOLOGY AND BIOTECHNOLOGY,90(3),1163-1169.
MLA Zhang, Kundi,et al."Isolation and characterization of a chromium-resistant bacterium Serratia sp Cr-10 from a chromate-contaminated site".APPLIED MICROBIOLOGY AND BIOTECHNOLOGY 90.3(2011):1163-1169.
条目包含的文件 下载所有文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Isolation and charac(312KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 下载
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Zhang, Kundi]的文章
[Li, Fuli]的文章
百度学术
百度学术中相似的文章
[Zhang, Kundi]的文章
[Li, Fuli]的文章
必应学术
必应学术中相似的文章
[Zhang, Kundi]的文章
[Li, Fuli]的文章
相关权益政策
暂无数据
收藏/分享
文件名: Isolation and characterization of a chromium-resistant bacterium Serratia sp. Cr-10 from a chromate-contaminated site.pdf
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。