Microbial diversity in Tunisian olive fermentation brine as evaluated by small subunit rRNA - Single strand conformation polymorphism analysis.
Identifieur interne : 000050 ( Main/Curation ); précédent : 000049; suivant : 000051Microbial diversity in Tunisian olive fermentation brine as evaluated by small subunit rRNA - Single strand conformation polymorphism analysis.
Auteurs : Mohamed Chamkha [Tunisie] ; Sami Sayadi ; Valérie Bru ; Jean-Jacques GodonSource :
- International journal of food microbiology [ 0168-1605 ] ; 2008.
Descripteurs français
- KwdFr :
- Fermentation (MeSH), Gammaproteobacteria (isolement et purification), Lactobacillus (isolement et purification), Microbiologie alimentaire (MeSH), Olea (microbiologie), Petite sous-unité du ribosome (génétique), Pichia (isolement et purification), Polymorphisme de conformation simple brin (MeSH), Réaction de polymérisation en chaîne (méthodes), Tunisie (MeSH).
- MESH :
- génétique : Petite sous-unité du ribosome.
- isolement et purification : Gammaproteobacteria, Lactobacillus, Pichia.
- microbiologie : Olea.
- méthodes : Réaction de polymérisation en chaîne.
- Fermentation, Microbiologie alimentaire, Polymorphisme de conformation simple brin, Tunisie.
- Wicri :
- geographic : Tunisie.
English descriptors
- KwdEn :
- Fermentation (MeSH), Food Microbiology (MeSH), Gammaproteobacteria (isolation & purification), Lactobacillus (isolation & purification), Olea (microbiology), Pichia (isolation & purification), Polymerase Chain Reaction (methods), Polymorphism, Single-Stranded Conformational (MeSH), Ribosome Subunits, Small (genetics), Tunisia (MeSH).
- MESH :
- geographic : Tunisia.
- genetics : Ribosome Subunits, Small.
- isolation & purification : Gammaproteobacteria, Lactobacillus, Pichia.
- methods : Polymerase Chain Reaction.
- microbiology : Olea.
- Fermentation, Food Microbiology, Polymorphism, Single-Stranded Conformational.
Abstract
The microbial diversity of a Tunisian olive fermentation brine was analysed using a culture-independent approach based on the polymerase chain reaction-single strand conformation polymorphism (PCR-SSCP). SSCP patterns show a remarkably simple microbial community but higher for bacterial community than for the eukaryotic community. This study did not show the presence of archaeal populations. After PCR amplification, two small subunit (SSU) rRNA clone libraries of Bacteria and Eucarya populations were established. Three bacteria and only one eukaryotic phylotype were identified. Two dominant bacteria showed 100% phylogenetic similarity to the 16S rRNA sequences of Lactobacillus plantarum and Lactobacillus collinoides and represent 85% of bacterial community. The third bacteria phylotype was phylogenetically close related to the 16S rRNA sequence of a moderately halophilic bacterium belonging to the class gamma Proteobacteria. The dominant eukaryotic phylotype was identified as a Pichia membranaefaciens.
DOI: 10.1016/j.ijfoodmicro.2007.11.052
PubMed: 18191493
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pubmed:18191493Le document en format XML
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<term>Pichia (isolement et purification)</term>
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<front><div type="abstract" xml:lang="en">The microbial diversity of a Tunisian olive fermentation brine was analysed using a culture-independent approach based on the polymerase chain reaction-single strand conformation polymorphism (PCR-SSCP). SSCP patterns show a remarkably simple microbial community but higher for bacterial community than for the eukaryotic community. This study did not show the presence of archaeal populations. After PCR amplification, two small subunit (SSU) rRNA clone libraries of Bacteria and Eucarya populations were established. Three bacteria and only one eukaryotic phylotype were identified. Two dominant bacteria showed 100% phylogenetic similarity to the 16S rRNA sequences of Lactobacillus plantarum and Lactobacillus collinoides and represent 85% of bacterial community. The third bacteria phylotype was phylogenetically close related to the 16S rRNA sequence of a moderately halophilic bacterium belonging to the class gamma Proteobacteria. The dominant eukaryotic phylotype was identified as a Pichia membranaefaciens.</div>
</front>
</TEI>
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