Evolution of host adaptation in Salmonella enterica

The lineage of S. enterica is postulated to have branched into several distinct phylogenetic groups, which by current nomenclature are considered subspecies. The formation of one of these groups, S. enterica subspecies I, involved a dramatic expansion in host range: while S. bongori and S. enterica...

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Published inInfection and immunity Vol. 66; no. 10; pp. 4579 - 4587
Main Authors Baumler, A.J, Tsolis, R.M, Ficht, T.A, Adams, L.G
Format Journal Article
LanguageEnglish
Published Washington, DC American Society for Microbiology 01.10.1998
Subjects
Adaptation, Biological
Animals
Bacteriology
Biological and medical sciences
Biological Evolution
Fundamental and applied biological sciences. Psychology
host specificity
Humans
Mammals - microbiology
Microbiology
Minireviews
Models, Biological
Pathogenicity, virulence, toxins, bacteriocins, pyrogens, host-bacteria relations, miscellaneous strains
Plasmids - genetics
Salmonella enterica - pathogenicity
Salmonella Infections - microbiology
virulence
Virulence - genetics
Salmonella
Molecular evolution
Gene
Virulence
Bacteria
Host agent relation
Host
Review
Enterobacteriaceae
Adaptation
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Summary:The lineage of S. enterica is postulated to have branched into several distinct phylogenetic groups, which by current nomenclature are considered subspecies. The formation of one of these groups, S. enterica subspecies I, involved a dramatic expansion in host range: while S. bongori and S. enterica subspecies II, IIIa, IIIb, IV, VI, and VII are mainly associated with cold-blooded vertebrates, members of S. enterica subspecies I are most frequently isolated from avian and mammalian hosts. The host adaptation of S. enterica subspecies I to warm-blooded vertebrates characterized a third phase in the evolution of virulence in the genus Salmonella and is the focus of this review.
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Corresponding author. Mailing address: Department of Medical Microbiology and Immunology, College of Medicine, Texas A&M University Health Science Center, 407 Reynolds Medical Building, College Station, TX 77843-1114. Phone: (409) 862-7756. Fax: (409) 845-3479. E-mail: abaumler@tamu.edu.
ISSN:0019-9567
1098-5522
DOI:10.1128/iai.66.10.4579-4587.1998