Metabolism and some characteristics of ruminal strains of Megasphaera elsdenii
Jazyk angličtina Země Spojené státy americké Médium print
Typ dokumentu časopisecké články
PubMed
2764566
PubMed Central
PMC202906
DOI
10.1128/aem.55.6.1570-1573.1989
Knihovny.cz E-zdroje
- MeSH
- antibiotická rezistence MeSH
- bachor mikrobiologie MeSH
- fermentace MeSH
- glukosa metabolismus MeSH
- kyselina mléčná MeSH
- laktáty metabolismus MeSH
- metabolismus sacharidů MeSH
- Peptostreptococcus účinky léků izolace a purifikace metabolismus MeSH
- skot MeSH
- zvířata MeSH
- Check Tag
- skot MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- Názvy látek
- glukosa MeSH
- kyselina mléčná MeSH
- laktáty MeSH
Megasphaera elsdenii belongs to the group comprising the ruminal and intestinal lactate- and sugar-fermenting species. In the present study the fermentation characteristics, metabolism of glucose and lactate, and susceptibility to antimicrobial agents of four ruminal strains were investigated. Particular attention was given to the mixed-substrate fermentation pattern and resultant fermentation acid profile. Lactate was utilized more rapidly than glucose in media with both carbon sources. Interaction of the two substrates changed the composition of fermentation end products toward more valerate and less propionate in cultures with glucose and lactate. Contrary to the indications in Bergey's Manual of Systematic Bacteriology, butyrate, not caproate, was the main end product of glucose metabolism. The strains examined were rather insensitive to many antimicrobial compounds, especially to ionophores and other antimicrobial feed additives.
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Limited genetic variability in Megasphaera elsdenii strains
Utilization of Glucose and Xylose in Ruminal Strains of Butyrivibrio fibrisolvens
Monensin has no effect on growth and metabolism of Megasphaera elsdenii
