Aeromonas tecta sp. nov., isolated from clinical and environmental sources

Syst Appl Microbiol. 2008 Sep;31(4):278-86. doi: 10.1016/j.syapm.2008.04.005. Epub 2008 Jul 9.


Five Aeromonas strains, isolated from both clinical and environmental sources and characterized by a polyphasic approach, including phylogenetic analysis derived from gyrB, rpoD, and 16S rRNA gene sequencing, as well as DNA-DNA hybridization, extensive biochemical and antibiotic susceptibility tests, were recognized as members of an unknown, or undescribed, Aeromonas species. These "Aeromonas eucrenophila-like" strains were closely related to the species A. eucrenophila and Aeromonas encheleia, but they were negative for indole and acid from glycerol tests. Therefore, based on the results of the phylogenetic analyses and DNA-DNA pairing data of these strains, a novel species of the genus Aeromonas is described, for which the name Aeromonas tecta is proposed with isolate F518(T) (CECT7082(T), DSM17300(T), MDC91(T)) as the type strain.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aeromonas / classification*
  • Aeromonas / drug effects
  • Aeromonas / genetics
  • Aeromonas / isolation & purification*
  • Animals
  • Anti-Bacterial Agents / pharmacology
  • Bacterial Proteins / genetics
  • Child
  • DNA Gyrase / genetics
  • DNA-Directed RNA Polymerases / genetics
  • Environmental Microbiology
  • Feces / microbiology
  • Glycerol / metabolism
  • Humans
  • Microbial Sensitivity Tests
  • Oncorhynchus mykiss / microbiology
  • Phylogeny
  • RNA, Ribosomal, 16S / genetics
  • Sigma Factor / genetics
  • Species Specificity


  • Anti-Bacterial Agents
  • Bacterial Proteins
  • RNA, Ribosomal, 16S
  • Sigma Factor
  • RNA polymerase sigma 70
  • DNA-Directed RNA Polymerases
  • DNA Gyrase
  • Glycerol