Aeromonas fluvialis sp. nov., isolated from a Spanish river

Int J Syst Evol Microbiol. 2010 Jan;60(Pt 1):72-77. doi: 10.1099/ijs.0.011643-0. Epub 2009 Jul 31.


A Gram-stain-negative, facultatively anaerobic bacterial strain, designated 717(T), was isolated from a water sample collected from the Muga river, Girona, north-east Spain. Preliminary analysis of the 16S rRNA gene sequence showed that this strain belonged to the genus Aeromonas, the nearest species being Aeromonas veronii (99.5 % similarity, with seven different nucleotides). A polyphasic study based on a multilocus phylogenetic analysis of five housekeeping genes (gyrB, rpoD, recA, dnaJ and gyrA; 3684 bp) showed isolate 717(T) to be an independent phylogenetic line, with Aeromonas sobria, Aeromonas veronii and Aeromonas allosaccharophila as the closest neighbour species. DNA-DNA reassociation experiments and phenotypic analysis identified that strain 717(T) represents a novel species, for which the name Aeromonas fluvialis sp. nov. is proposed, with type strain 717(T) (=CECT 7401(T) =LMG 24681(T)).

MeSH terms

  • Aeromonas / classification*
  • Aeromonas / genetics
  • Aeromonas / isolation & purification*
  • Aeromonas / metabolism
  • Bacterial Proteins / genetics
  • DNA, Bacterial / genetics
  • DNA, Ribosomal / genetics
  • Molecular Sequence Data
  • Phylogeny
  • RNA, Ribosomal, 16S / genetics
  • Rivers / microbiology*
  • Spain


  • Bacterial Proteins
  • DNA, Bacterial
  • DNA, Ribosomal
  • RNA, Ribosomal, 16S

Associated data

  • GENBANK/FJ230078
  • GENBANK/FJ603453
  • GENBANK/FJ603454
  • GENBANK/FJ603455
  • GENBANK/FJ603456
  • GENBANK/FJ603457