Description of a new species, Bifidobacterium crudilactis sp. nov., isolated from raw milk and raw milk cheeses
| Autor: | Christine Franssen, Françoise Gavini, Véronique Delcenserie, Henri Beerens, Odile Tresse, Georges Daube |
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| Přispěvatelé: | Université de Liège, Laboratoire de Génie des Procédés et Technologie Alimentaires (LGPTA), Institut National de la Recherche Agronomique (INRA), Centre d’Enseignement et de Recherche en Microbiologie Pharmaceutique, Partenaires INRAE, SECurité des ALIments et Microbiologie, Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Vétérinaire de Nantes-École nationale d'ingénieurs des techniques des industries agricoles et alimentaires (ENITIAA) |
| Rok vydání: | 2007 |
| Předmět: |
DNA
Bacterial [SDV]Life Sciences [q-bio] Molecular Sequence Data Biology DNA Ribosomal Applied Microbiology and Biotechnology Microbiology law.invention taxonomy 03 medical and health sciences Probiotic chemistry.chemical_compound fluids and secretions Cheese law RNA Ribosomal 16S Animals Bifidobacterium crudilactis 16S rRNA Lactose Ecology Evolution Behavior and Systematics 030304 developmental biology Bifidobacterium Bifidobacterium psychraerophiluim 0303 health sciences DNA-DNA hybridization 030306 microbiology raw milk Nucleic Acid Hybridization food and beverages Actinomycetaceae Melezitose Raw milk raw milk cheeses 16S ribosomal RNA biology.organism_classification Bacterial Typing Techniques Phosphoketolase activity Milk chemistry G plus C content |
| Zdroj: | Systematic and Applied Microbiology Systematic and Applied Microbiology, Elsevier, 2007, 30 (5), pp.381-9. ⟨10.1016/j.syapm.2007.01.004⟩ |
| ISSN: | 0723-2020 |
| DOI: | 10.1016/j.syapm.2007.01.004 |
| Popis: | International audience; A new Bifidobacterium species is described based on the study of ten Gram-positive strains with fructose-6-phosphate phosphoketolase activity. They are part of a phenotypic group comprising 141 strains isolated from raw milk and raw milk cheeses in French raw milk cheese factories. This group was separated by a numerical analysis based on API 50CH, API 32A tests and growth at 46 degrees C. A strong similarity of 16S rRNA sequences (99.8%) was shown between strain FR62/b/3(T) and Bifidobacterium psychraerophilum LMG 21775(T). However, low DNA-DNA relatedness was observed between their DNAs (31%). The new isolates are able to grow at low temperatures (all ten strains up to 5 degrees C) and strain FR62/b/3(T) grows under aerobic conditions, as does B. psychraerophilum. However, contrary to B. psychraerophilum, they do not ferment L-arabinose, D-xylose, arbutin or melezitose, but they do acidify lactose. The DNA G+C content of FR62/b/3(T) is 56.4mol%. Therefore, the name Bifidobacterium crudilactis sp. nov. is proposed, with its type strain being FR62/b/3(T) (=LMG 23609(T)=CNCM I-3342(T)). |
| Databáze: | OpenAIRE |
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