- Friday, January 30, 2009
- Photobacterium eurosenbergii sp. nov. and Enterovibrio coralii sp. nov., vibrios associated with coral bleaching
- Published at:Not Found
F. L. Thompson,
C. C. Thompson, S. M. Naser,B. Hoste,K. Vandemeulebroecke, C. Munn, D. Bourne, J. Swings
Six new Vibrio-like isolates originated from different species of bleached and healthy corals in the Magnetic Islands (Australia) were investigated using a polyphasic approach. Phylogenetic analyses based on 16S rRNA, recA and rpoA gene sequences split the isolates in two new groups. Strains LMG 22223T, LMG 22224, LMG 22225, LMG 22226 and LMG 22227 were phylogenetic neighbours of Photobacterium leiognathi LMG 4228T (95.6 % 16S rRNA similarity), while strain LMG 22228T was related to Enterovibrio norvegicus LMG 19839T (95.5 % 16S rRNA similarity). The two new groups can be distinguished from closely related species on the basis of several phenotypic features, including fermentation of D27 mannitol, melibiose, and sucrose, and utilization of different compounds as carbon sources, arginine dihydrolase activity, nitrate reduction, resistance to the vibriostatic agent 0/129, presence of 15:0 iso and 17:0 iso. We propose the names Photobacterium eurosenbergii sp. nov. (the type strain is LMG 22223T, mol% G+C of DNA is 47.6) and Enterovibrio coralii sp. nov. (the type strain is LMG 22228T, mol% G+C of DNA is 48.2) to accommodate these new isolates.