Affiliation:
1. Departments of Biology, Georgetown University, Washington, D.C.
2. The University of Texas M. D. Anderson Hospital and Tumor Institute, Houston, Texas
Abstract
Colwell
, R. R. (Georgetown University, Washington, D.C.),
and M. Mandel
. Adansonian analysis and deoxyribonucleic acid base composition of some gram-negative bacteria. J. Bacteriol.
87:
1412–1422. 1964.—The deoxyribonucleic acid (DNA) base compositions and S values for a minimum of 134 coded properties were determined for representative cultures of the genera
Pseudomonas, Xanthomonas, Aeromonas, Vibrio, Aerobacter, Escherichia, Alcaligenes
, and
Flavobacterium
. Those cultures having a high degree of similarity by the criterion of numerical taxonomy were found to have similar DNA base compositions. The relative affinities of clusters of cultures suggest taxonomic relations. Eleven species of
Xanthomonas
might be a single species, and
V. metschnikovii
was shown to be more closely related to enteric bacteria than to other vibrios which, in turn, were found to be like pseudomonads.
Aeromonas
was found to be intermediate in similarity to enterics and pseudomonads and divisible into at least two, but possibly three, species.
F. aquatile
was unlike any of the other organisms studied, and its DNA also differed greatly in composition from other representatives of the genus.
Publisher
American Society for Microbiology
Subject
Molecular Biology,Microbiology
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