Numerical Survey of Some Bacterial Taxa
- 1 November 1965
- journal article
- research article
- Published by American Society for Microbiology in Journal of Bacteriology
- Vol. 90 (5), 1314-+
- https://doi.org/10.1128/jb.90.5.1314-1319.1965
Abstract
A numerical analysis was made of 77 properties of each of 43 bacterial strains, representing 25 genera from 8 families in the orders Eubacteriales and Pseudomonadales. Four major groups were found, related to one another at approximately the same level of similarity: (1) a large cluster containing the subgroups (la) Athiorhodaceae-Spirillaceae, (1b) Xanthomonas, and (1c) "inactive" Micrococcaceae-Achromo-bacteraceae; (2) a cluster containing the "active" Micrococcaceae and Lactobacillaceae; (3) the enterobacteria; and (4) Aeromonas. There was a sharp distinction between the branches of groups 1a, 1c, and 2. The composition of groups was essentially the same whether or not fermentation of carbohydrates (28 characters) was included in the analysis. Several individual strains, notably, Bacillus subtilis, Leuconostoc mesenteroides, Paeudomonas aeruginosa, and Erwirnia amylovora, were related to none of the groups, and others (two species of Proteus, Flavobacterium devorans, and Lactobacillus casei) showed only minimal quantitative relationships with their groups. These results suggest that there may be significant variation in levels of similarity within micro-bial groups presently accorded equivalent taxonomic rank, and that some present distinctions among taxa, particularly at the generic level, cannot be confirmed on the basis of overall similarity.This publication has 17 references indexed in Scilit:
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