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This is a common and important member of the human gut microbiome. This organism can utilise xylan, a group of hemicelluloses, eg:
(By Yikrazuul - Own work by uploader; PMID 15944805, Public Domain, https://commons.wikimedia.org/w/index.php?curid=7141810)
Fuel sources used:
It can use resistant starch, fibre, simple sugars and acetate for energy.
Metabolites produced:
Our genomic analysis indicates that most members of this species can produce the following metabolites: acetate, ammonia, B-glucuronidase, BCAAs, butyrate, lactate, cobalamin, folate, biotin, riboflavin.
Metabolites consumed:
In addition, our genomic analysis indicates that most members of this species do not consume any reported metabolites.
Emerging research:
This species has been observed at reduced levels in individuals with type 2 diabetes and children and adolescents with new-onset Crohn's disease.
Complementary studies have shown that Roseburia spp. play an important role in the control of gut inflammatory processes, amelioration of atherosclerosis and in the maturation of the immune system, primarily through the production of butyrate. [PMID: 30796211] A detailed investigation of the phenotypic and phylogenetic characteristics of the strain L1-82T (= DSM 14610T = NCIMB 13810T) revealed that they represent a novel species of anaerobic, low-G+C-content, butyrate-producing bacterium that shows net acetate utilization during growth on media containing carbohydrates and short-chain fatty acids. [PMID: 12361264]
R. intestinalisis also a major xylanolytic bacterium in the colon, producing butyrate upon fermentation of xylan-rich substrates. [PMID: 20105245] The end-products of xylose fermentation by Roseburia sp. XB6B4 were butyrate, formate and lactate. In addition, Roseburia strain XB6B4 was shown to produce large amounts of H2 during xylose fermentation. [PMID: 17391327] Roseburia spp., together with Faecalibacterium prausnitzii and Eubacterium rectale, constitute a group of dominant butyrate-producing Firmicutes, estimated to account for 7Ì24% of the total bacteria in the healthy human colon. R. intestinalis preferentially colonizes the mucin layer and this intimate association to the host may contribute to the local level of butyrate available for the colonic epithelial cells. This species appears to be a specialist able to grow only on a few glycans and has been recently shown to be a prominent xylan degrader in vitro and in the healthy human colon. [PMID: 30796211] Roseburia intestinalis XB6B4 draft genome 4,286,292 bp linear DNA Record removed. This RefSeq genome was suppressed because updated RefSeq validation criteria identified problems with the assembly or annotation. NC_021012.1 GI:479146200
Roseburia spp., together with Faecalibacterium prausnitzii and Eubacterium rectale, constitute a group of dominant butyrate-producing Firmicutes, estimated to account for 7Ì24% of the total bacteria in the healthy human colon. R. intestinalis preferentially colonizes the mucin layer and this intimate association to the host may contribute to the local level of butyrate available for the colonic epithelial cells. This species appears to be a specialist able to grow only on a few glycans and has been recently shown to be a prominent xylan degrader in vitro and in the healthy human colon. [PMID: 30796211]
Duncan, S. H., Hold, G. L., Barcenilla, A., Stewart, C. S., & Flint, H. J. (2002). Roseburia intestinalis sp. nov., a novel saccharolytic, butyrate-producing bacterium from human faeces. International Journal of Systematic and Evolutionary Microbiology, 52(Pt 5), 1615–1620.
Lineage | Physiology | General | Growth Tolerances | Hydrol./digest./degr. |
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Health:
Positive
Source: human faeces
DNA G+C(%): 42.6
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Monosaccharide O/F | Oligosaccharide O/F | Polysaccharide O/F | Polyol O/F | Other O/F |
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Monosaccharide util/assim | Oligosaccharide util/assim | Other carboh. util/assim | Amino acid util/assim | Organic acid util/assim |
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Enzymes: General | Enzymes: Carbohydrate | Enzymes: Protein | Enzymes: Arylamidases | Enzymes: Esters/fats |
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Fuel | Usable Metabolites | Metabolites Released | Special Products | Compounds Produced |
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Penicillins & Penems (μg/mL) | Cephalosporins (μg/mL) | Aminoglycosides (μg/mL) | Macrolides (μg/mL) | Quinolones (μg/mL) |
amoxicillin: S(0.25)
Augmentin: S(0.064)
ampicillin: Sens
azlocillin: Sens
aztreonam: Res
bacampicillin: Sens
benzyl-pen: Sens
cloxacillin: Sens
dicloxacillin: Sens
oxacillin: S(0.375)
piperacillin: S(0.315)
ticarcillin: Sens
imipenem: Sens
meropenem: S(0.064)
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cefaclor: Sens
cefadroxil: Res
cefazolin: Sens
cefdinir: Sens
cefepime: Sens
cefixime: Sens
cefmetazole: Sens
cefoperazone: Sens
cefotaxime: S(1)
cefotetan: Sens
cefotiam: Sens
cefoxitin: S(0.094)
ceftazidime: S(1)
cefuroxime: Sens
cephalothin: Sens
moxalactam: Sens
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amikacin: Var(MIC50): 12), MIC90: Var(12
dihydrostrept: Sens
gentamicin: Sens
kanamycin: Res
neomycin: Res
sisomicin: Sens
spectinomycin: Sens
streptomycin: Res
tobramycin: Var(MIC50): 16), MIC90: Var(16
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azithromycin: S(1)
erythromycin: S(4)
clarithromycin: S(0.5)
roxithromycin: Sens
spiramycin: S(0.064)
josamycin: Sens
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linezolid: S(2)
ciprofloxacin: R(>32)
clavulanate: Res
clinafloxacin: Sens
enoxacin: Sens
gatifloxacin: S(3)
moxifloxacin: S(6)
nalidixic-acid: Res
norfloxacin: R(>256)
ofloxacin: R(>32)
pefloxacin: Res
pipemidic_acid: Res
sarafloxacin: Sens
sparfloxacin: Sens
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Tetracyclines (μg/mL) | Vancomycin Class (μg/mL) | Polypep/ketides (μg/mL) | Heterocycles (μg/mL) | Other (μg/mL) |
doxycycline: S(8)
chlortetracycline: Sens
meclocycline: Sens
methacycline: Sens
minocycline: Sens
oxytetracycline: Sens
tetracycline: Sens
tigecycline: S(<0.016)
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teicoplanin: S(0.094)
vancomycin: S(0.25)
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bacitracin: Sens
rifabutin: Sens
rifampicin: Sens
rifapentine: Sens
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chloramphenicol: S(2)
fosfomycin: R(32)
isoniazid: Res
metronidazole: S(0.5)
nitrofurantoin: Sens
sulfadiazine: Res
sulfadimethoxine: Res
sulfamethoxazole: R(>1024)
sulfanilamide: Res
trimethoprim: R(>32)
SXT: R(>32)
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clindamycin: S(<0.016)
lincomycin: Sens
colistin: S(6)
fusidic-acid: Sens
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