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The phylogeny of the spirochetes

1984; Elsevier BV; Volume: 5; Issue: 3 Linguagem: Inglês

10.1016/s0723-2020(84)80036-3

1618-0984

Bruce J. Paster, Erko Stackebrandt, Robert B. Hespell, Cassidy H. Shaw, C R Woese,

Dermatological diseases and infestations

A number of species of Spirochaeta, Treponema, Leptospira and Borrelia have been characterized by the method of ribosomal RNA oligonucleotide cataloging, in order to determine their phylogenetic relationships. The group so formed is phylogenetically very deep, with a major division occurring between the leptospiras on the one side and the remaining spirochetes on the other. At a comparably deep level the greater group also encompasses the recently recognized group of obligate anaerobic halophiles. The main cluster within the greater group comprises three sublines: (1) that containing the bulk of the spirochetes and treponemes examined, (2) that represented by B. hermsii, and (3) that represented by T. hyodysenteriae. The first of these in turn divides into two main subclusters, represented by S. halophila on the one hand and S. stenostrepta on the other.