Characterization of exopolysaccharides produced by cyanobacteria isolated from polynesian microbial mats

被引：72
|
作者：
Richert, L
Golubic, S
Le Guédès, R
Ratiskol, J
Payri, C
Guezennec, J
机构：
[1] Univ Polynesie Francaise, Lab Ecol Marine, F-98702 Faaa, Tahiti, France
[2] Boston Univ, Ctr Biol Sci, Boston, MA 02115 USA
[3] French Res Inst Exploitat Sea, Ctr Nantes, PBA, Lab VP, F-44311 Nantes, France
[4] French Res Inst Exploitat Sea, Ctr Brest, BMM, Lab VP, Plouzane, France
来源：
CURRENT MICROBIOLOGY | 2005年 / 51卷 / 06期
关键词：
D O I：
10.1007/s00284-005-0069-z
中图分类号：
Q93 [微生物学];
学科分类号：
071005 ; 100705 ;
摘要：
Six cyanobacterial isolates recovered from Polynesian microbial mats, called "kopara," were cultured using laboratory-closed photobioreactors and were shown to produce exopolymers as released and capsular exopolysaccharides (EPS). These polymers have been chemically characterized using colorimetric and elemental assays, infrared spectrometry, and gas chromatography. Both capsular and released EPS consisted of 7 to 10 different monosaccharides with neutral sugars predominating. Interestingly, four isolates exhibited sulfate contents ranging from 6% to 19%. On the basis of preliminary data, cyanobacteria from this unusual ecosystem appear to be an important source of novel EPS of a great interest in terms of their biological activities.
引用
收藏
页码：379 / 384
页数：6
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