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. 1981 Jul;14(1):39–47. doi: 10.1128/jcm.14.1.39-47.1981

Characterization of some groups of gram-negative nonfermentative bacteria by the carbon source alkalinization technique.

R Martin, P S Riley, D G Hollis, R E Weaver, M I Krichevsky
PMCID: PMC271899  PMID: 7021587

Abstract

A total of 541 gram-negative nonfermentative bacterial strains comprising 26 species and unclassified groups were characterized by routine diagnostic and carbon substrate alkalinization techniques. These microorganisms were tested for the ability to cause alkalinization of a basal medium on a total of 217 substrates. We found that 58 carbon substrates had some discriminatory potential. We also performed 30 routine diagnostic tests. The results of these studies were evaluated by numerical taxonomy techniques. A cluster analysis of the results by the Jaccard coefficient method identified 30 clusters at the 45% level. We identified 39 tests that separated most of the groups. Groups of similar organisms or organisms that were difficult to identify were analyzed, and tests that were differential were identified. Because of variability within the clusters, further studies utilizing deoxyribonucleic acid-deoxyribonucleic acid homologies should be undertaken.

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Selected References

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