Affiliation:
1. Department of Microbiology, Cornell University Medical College, New York, New York 10021
Abstract
The fatty acid compositions of stationary-phase cultures of
Arizona arizonae, Citrobacter freundii, Providencia alcalifaciens, Providencia stuartii
, and
Providencia
sp. were studied. The major fatty acids of
A. arizonae, C. freundii
, and
Providencia
were 16:0, 16:1, 17:cyclopropane, and 19:cyclopropane. The fatty acid compositions of the two strains of
A. arizonae
examined were similar to each other, but the three strains of
C. freundii
differed from one another in their fatty acid compositions. In both
A. arizonae
and
C. freundii
, the relative quantities of saturated, unsaturated, and cyclopropane fatty acids were similar to those which have been found in stationary-phase cultures of other members of the
Enterobacteriaceae
. The three strains of
Providencia
also differed from one another in their fatty acid compositions. In all three strains, the total quantity of unsaturated fatty acids was larger and that of the cyclopropane fatty acids was smaller than those found in stationary-phase cultures of other enteric bacteria.
Publisher
American Society for Microbiology
Subject
Molecular Biology,Microbiology
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