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Phylogenetic Relationships between different D‐Xylose Biogroups in Wild‐type Salmonella typhimurium strains and a suggested Evolutionary Pathway
Author(s) -
OLD D. C.,
MORTLOCK R. P.
Publication year - 1979
Publication title -
journal of applied bacteriology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.889
H-Index - 156
eISSN - 1365-2672
pISSN - 0021-8847
DOI - 10.1111/j.1365-2672.1979.tb01181.x
Subject(s) - xylose , xylose isomerase , phylogenetic tree , isomerase , biology , genetics , salmonella , microbiology and biotechnology , bacteria , biochemistry , gene , fermentation
Sixty‐two wild‐type Salmonella typhimurium strains were characterized for their D‐xylose enzyme activities. Strains from the xylose strong biogroup synthesized high levels of D‐xylose isomerase and D‐xylulokinase and transported D‐xylose. Strains from the xylose weak biogroup synthesized only low levels of D‐xylulokinase and low, or no, levels of D‐xylose isomerase and were deficient in the ability to transport D‐xylose. These findings are discussed in the light of known phylogenetic relationships among the biotypes of Salm. typhimurium.