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Bifidobacterium dentium strain:FMTc1 | isolate:FMTc1

ABSTRACT: Draft Genome Assemblies for Two Strains of Bifidobacterium dentium

PROVIDER: PRJNA622788 | ENA |

REPOSITORIES: ENA

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			Action	DRS
		Other
	JAAWWM01.dat.gz	Other
	JAAWWM01.fasta.gz	Fasta.gz
	JAAWWM01.master.dat	Other
	JAAWWN01.dat.gz	Other

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Transcriptional response to protease treatments (kallikrein, papain and chymotrypsin) of Bifidobacterium breve 210B

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Metabolism of biosynthetic oligosaccharides by human-derived Bifidobacterium breve UCC2003 and Bifidobacterium longum NCIMB 88099

Project description:This work aimed to investigate the ability of two human-derived bifidobacterial strains, i.e. Bifidobacterium breve UCC2003 and Bifidobacterium longum NCIMB 8809, to utilize various oligosaccharides (i.e., 4-galactosyl-kojibiose, lactulosucrose, lactosyl-oligofructosides, raffinosyl-oligofructosides and lactulose-derived galacto-oligosaccharides) synthesized by means of microbial glycoside hydrolases. With the exception of raffinosyl-oligofructosides, these biosynthetic oligosaccharides were shown to support growth of at least one of the two studied strains. Short-chain fatty acid (SCFA) analysis by HPLC corroborated the suitability of most of the studied novel oligosaccharides as growth substrates for the two bifidobacterial strains, showing that acetate is the main metabolic end product followed by lactic and formic acids. Transcriptomic and functional genomic approaches carried out for B. breve UCC2003 allowed the identification of key genes encoding glycoside hydrolases and protein transport systems involved in the metabolism of 4-galactosyl-kojibiose and lactulosucrose. In particular, the role of β-galactosidases in the hydrolysis of these particular trisaccharides was demonstrated, highlighting their importance in oligosaccharide metabolism by human bifidobacterial strains.

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