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Título

Differential microbial communities in hot spring mats from Western Thailand

AutorPortillo Guisado, María del Carmen ; Sririn, V.; Kanoksilapatham, W.; González Grau, Juan Miguel
Palabras claveMicrobial fingerprints
Hot spring
Microbial mat
Molecular survey
Cyanobacteria
Chloroflexi
Pigment profile
Metabolicaly active bacteria
Fecha de publicación25-dic-2008
EditorSpringer
CitaciónExtremophiles 13(2): 321-331(2008)
ResumenThe microbial communities of freshwater hot spring mats from Boekleung (Western Thailand) were studied. Temperatures ranged from over 50 up to 57°C. Green-, red-, and yellow colored mat layers were analyzed. In order to detect the major components of the microbial communities constituting the mat as well as the microorganisms showing significant metabolic activity, samples were analyzed using DNA- and RNA-based molecular techniques, respectively. Microbial community fingerprints, performed by denaturing gradient gel electrophoresis (DGGE), revealed clear differences among mat layers. Thermophilic phototrophic microorganisms, Cyanobacteria and Chloroflexi, constituted the major groups in these communities (on average 65 and 51% from DNA and RNA analyses, respectively). Other bacteria detected in the mat were Bacteroidetes, members of the Candidate Division OP10, Actinobacteria, and Planctomycetes. Differently colored mat layers showed characteristic bacterial communities and the major components of the metabolically active fraction of these communities have been identified
Versión del editorhttp://dx.doi.org/10.1007/s00792-008-0219-x
URIhttp://hdl.handle.net/10261/17037
DOI10.1007/s00792-008-0219-x
ISSN1431-0651 (Print)
1433-4909 (Online)
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