Isolation of an exopolysaccharide-producing heavy metal-resistant Halomonas sp MG

被引：16
|
作者：
Govarthanan, Muthusamy [1 ]
Shim, Jaehong [2 ]
Praburaman, Loganathan [1 ]
Kim, Seol Ah [1 ,3 ]
Oh, Byung-Taek [1 ]
机构：
[1] Chonbuk Natl Univ, Coll Environm & Bioresource Sci, Adv Inst Environm & Biosci, Div Biotechnol, Iksan 570752, Jeonbuk, South Korea
[2] Univ Nebraska, Sch Nat Resources, Lincoln, NE 68583 USA
[3] Jeonbuk Reg Div, K Water, Jeonju 561330, Jeollabuk Do, South Korea
来源：
ARCHIVES OF MICROBIOLOGY | 2016年 / 198卷 / 02期
基金：
新加坡国家研究基金会;
关键词：
Exopolysaccharide; Heavy metal; Polymer; Ore; EPS;
D O I：
10.1007/s00203-015-1173-5
中图分类号：
Q93 [微生物学];
学科分类号：
071005 ; 100705 ;
摘要：
An exopolysaccharide (EPS)-producing heavy metal-resistant Gram-negative bacterium was isolated from ore-contaminated soil. The selected strain was identified by 16S rDNA sequencing and designated as Halomonas sp. MG. Phylogenetic analysis of the gene sequence showed its close similarity with Halomonas sp. Field emission scanning electron microscopy analysis revealed that the EPS had a porous structure with small pores. X-ray diffractograms showed the non-crystalline nature of the EPS. Further, FTIR spectroscopic analysis revealed the presence of carboxyl, hydroxyl and amide groups corresponding to a typical EPS.
引用
收藏
页码：205 / 209
页数：5
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