Studies on bacterial synergism in mice infected withBacteroides intermedius andFusobacterium necrophorum

In the operations of bacteria under natural conditions it is the general rule to find mixed cultures at work, the variability of the results depending upon many factors. Therefore it has been suggested by Holman (1928) that the general term “bacterial association” be used to cover such processes. When, however, the combined action of two or more micro-organisms effects changes which each by itself is incapable of achieving, the term “synergism” is applied. Synergism appears to be used now in a more restricted sense to describe a particular type of bacterial association, and has been defined by Fiallos (1925) as follows: “two bacilli neither of which causes the production of gas in certain compounds, may do so when artificially mixed together provided one of them is capable of producing acidity (never gas) in these carbon compounds, and the other though inert to these compounds (i.e. produces in them neither acid nor gas) is capable of producing gas from glucose.” In 1911 Penfold observed the production of gas from a glucose medium in whichB. typhosuswas growing along with a variant non-aerogenic strain ofB. coli communis, the latter having been derived from a typical gas-producing culture by selective growth on agar containing sodium monochloracetate. Although this organism had lost the power of gas-fermenting glucose it retained the power of gas-fermenting sodium formate. Castellani (1925, 1926 and 1927) states that he noted the phenomenon, which he calls “symbiotic,” in 1904 when investigating the fermentation reactions of bakers' yeast, which is not a pure culture but consists generally of two or more species of yeasts together with one or more types of Gram-negative bacilli.

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Heavy metals species affect fungal-bacterial synergism during the bioremediation of fluoranthene

Applied Microbiology and Biotechnology ◽

10.1007/s00253-016-7595-4 ◽

2016 ◽

Vol 100 (17) ◽

pp. 7741-7750 ◽

Cited By ~ 10

Author(s):

Xiao-kui Ma ◽

Ning Ding ◽

Eric Charles Peterson ◽

Andrew J. Daugulis

Keyword(s):

Heavy Metals ◽

Bacterial Synergism

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Bacterial synergism between the enterococcus and Escherichia coli

Journal of Surgical Research ◽

10.1016/0022-4804(85)90064-2 ◽

1985 ◽

Vol 38 (5) ◽

pp. 475-478 ◽

Cited By ~ 10

Author(s):

Donald E. Fry ◽

Susan Berberich ◽

R.Neal Garrison

Keyword(s):

Escherichia Coli ◽

Bacterial Synergism

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Bacterial Synergism or Antagonism in a Gel Cassette System

Applied and Environmental Microbiology ◽

10.1128/aem.69.12.7204-7209.2003 ◽

2003 ◽

Vol 69 (12) ◽

pp. 7204-7209 ◽

Cited By ~ 34

Author(s):

Eirini Tsigarida ◽

Ioannis S. Boziaris ◽

George-John E. Nychas

Keyword(s):

Growth Rate ◽

Organic Acids ◽

Formic Acid ◽

Metabolic Activity ◽

End Products ◽

Brochothrix Thermosphacta ◽

Bacterial Synergism ◽

Selection Of

ABSTRACT The growth and the metabolic activity of Shewanella putrfaciens, Brochothrix thermosphacta, and Pseudomonas sp., when cultured individually or in all possible combinations in gel cassettes system supplemented with 0.1% glucose at 5°C, were investigated. The overall outcome was that the coexistence of the above-mentioned microorganisms affected not only each growth rate but also their type of metabolic end products compared to the control cultures. These effects were varied and depended on the selection of the combination of the tested bacteria. For example, the growth of Pseudomonas sp. strains cocultured with either B. thermosphacta or S. putrefaciens strains resulted in different effects: a promoting one for the first and an inhibitory one for the second. Moreover, the production of formic acid and two unidentified organic acids (peaks a and b) was characteristic in all cases in which S. putrefaciens was cultured.

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