Dickeya aquatica sp. nov., isolated from waterways.
Int J Syst Evol Microbiol
; 64(Pt 7): 2264-2266, 2014 Jul.
Article
in En
| MEDLINE
| ID: mdl-24719023
ABSTRACT
Pectinolytic Gram-negative bacteria were isolated from different waterways in the UK and Finland. Three strains (174/2(T), 181/2 and Dw054) had the same 16S rRNA gene sequences which shared 99% sequence similarity to species of the genus Dickeya, and a phylogeny of related genera confirmed attribution to this genus. Fatty acid profile analysis of all three strains found a high proportion of C16 1ω7c/C16 1ω7c and C16 0 fatty acids, and library profile searches found closest matches to Dickeya chrysanthemi. Production of a concatenated phylogeny using six loci, recA, gapA, atpD, gyrB, infB and rpoB, provided a high-resolution phylogeny which placed strains 174/2(T) and 181/2 as a distinct clade, separated from the other species of the genus Dickeya by a relatively long branch-length. DNA-DNA hybridization analysis with a limited number of reference species also supported the distinctiveness of strains 174/2(T) and 181/2 within the genus Dickeya. All three strains could be phenotypically distinguished from other species of the genus by fermentation of melibiose and raffinose but not D-arabinose or mannitol. The name Dickeya aquatica sp. nov. is proposed for the new taxon; the type strain is 174/2(T) (â= NCPPB 4580(T)â= LMG 27354(T)).
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Phylogeny
/
Water Microbiology
/
Enterobacteriaceae
Country/Region as subject:
Europa
Language:
En
Journal:
Int J Syst Evol Microbiol
Journal subject:
MICROBIOLOGIA
Year:
2014
Document type:
Article
Affiliation country: