6533b862fe1ef96bd12c7581

RESEARCH PRODUCT

Numerical Taxonomy of Pseudomonads Isolated from Water, Sediment and Eels

Rosa AznarEsperanza GarayElena Alcaide

subject

biologyShewanella putrefaciensbiology.organism_classificationApplied Microbiology and BiotechnologyMicrobiologyPseudomonas putidaMicrobiologyNumerical taxonomyXanthomonasBotanyPseudomonadalesTaxonomy (biology)Ecology Evolution Behavior and SystematicsBacteriaPseudomonadaceae

description

Summary A numerical taxonomic study was performed on 129 pseudomonad isolates from aquatic environments. 67 out of 98 field strains were isolated from water and sediment samples from Albufera lake, a hypereutrophic lake near Valencia, and 31 strains came from an eel hatchery. 10 clusters were formed at 84% similarity level when the Sokal-Michener similarity coefficient was used. Five clusters were designated as Pseudomonas putida (16 strains), P. fluorescens biotype I (9 strains), P. pseudoalcaligenes (11 strains), P. stutzen (4 strains) and Shewanella putrefaciens (3 strains). A subcluster of 7 strains (out of 15) was ascribed to the species Xanthomonas maltophilia , while the other strains remained unidentified. Two clusters comprise members of the new family Comamonadaceae , as they share the same pattern of substrate utilization as sole carbon source, but only one could be ascribed to the genus Acidovorax .

https://doi.org/10.1016/s0723-2020(11)80097-4