Synergism between different species of proteolytic rumen bacteria

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Abstract

Proteolytic strains ofButyrivibrio alactacidigens, Butyrivibrio fibrisolvens, Selenomonas ruminantium, andStreptococcus bovis grew markedly better in medium containing casein as sole nitrogen source when they were inoculated in pairs rather than singly, when growth was poor or nil. The improved growth ofSelenomonas ruminantium with other species was a consequence of a faster rate of proteolysis by the mixed culture. The cooperativity withStreptococcus bovis was mediated by the extracellular activity ofSelenomonas ruminantium. Synergistic growth betweenBu. alactacidigens and other bacteria was not due to cooperativity between proteolytic activities but probably to nutritional interdependence between the species. Cooperative proteolysis also occurred in mixtures ofSelenomonas ruminantium andBacteroides ruminicola, a proteolytic isolate capable of growth on casein in monoculture.
Original languageEnglish
Pages (from-to)59-63
Number of pages5
JournalCurrent Microbiology
Volume12
Issue number2
DOIs
Publication statusPublished - Mar 1985

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Rumen
Ruminants
Bacteria
Growth
Caseins
Proteolysis
Selenomonas
Nitrogen

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Synergism between different species of proteolytic rumen bacteria. / Wallace, R. John.

In: Current Microbiology, Vol. 12, No. 2, 03.1985, p. 59-63.

Research output: Contribution to journalArticle

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