| contrasting responses of marine bacterial strains exposed to carboxylated single-walled carbon nanotubes. | the potential toxic effects of carboxylated (cooh) single-walled carbon nanotubes (swnts) were investigated on the cell growth and viability of two reference (silicibacter pomeroyi, oceanospirillum beijerinckii) and two environmental (vibrio splendidus, vibrio gigantis) gram-negative marine bacterial strains. bacterial cells were exposed to six concentrations of swnt-cooh, during different incubation times. our results revealed different sensitivity levels of marine bacterial strains toward swnt ... | 2013 | 24184842 |
| determination of the genetic diversity of different bioluminescent bacteria by pulsed-field gel electrophoresis (pfge). | there are 4 different genera (i.e. vibrio, aliivibrio, photobacterium, and shewanella) in the new classification of bioluminescent bacteria. the mechanism of bioluminescence has yet to be fully elucidated. therefore, the determination of physiological and genetic characteristics of bioluminescent bacteria isolated from different sources is very important. pulsed-field gel electrophoresis (pfge) has the highest discriminatory power among the different molecular typing methods for the investigatio ... | 2015 | 26421141 |
| vibrio gigantis sp. nov., isolated from the haemolymph of cultured oysters (crassostrea gigas). | polyphasic analysis of four new vibrio isolates originating from the haemolymph of diseased cultured oysters is described. the new isolates were closely related to vibrio splendidus, having 98 % 16s rrna gene sequence similarity. phylogenetic analysis based on dna gyrase subunit b (gyrb), rna polymerase sigma70 factor (rpod), replication origin-binding protein (rctb) and transmembrane regulatory protein (toxr) genes, fluorescent amplified fragment length polymorphism and dna-dna hybridization ex ... | 2005 | 16280478 |
| characterization of vibrios diversity in the mucus of the polychaete myxicola infundibulum (annellida, polichaeta). | vibrios are among the most abundant culturable microbes in aquatic environments. they can be either free-living in the water column or associated with several marine organisms as mutualists, saprophytes, or parasites. in the present study we analysed vibrios abundance and diversity in the mucus of the polychaete myxicola infundibulum, complementing culture-based with molecular methods. vibrios reached 4.6 × 10(3) cfu ml(-1) thus representing a conspicuous component of the heterotrophic culturabl ... | 2014 | 24194098 |
| an mlsa approach for the taxonomic update of the splendidus clade, a lineage containing several fish and shellfish pathogenic vibrio spp. | a multilocus sequence analysis was undertaken in order to redefine the splendidus clade of the genus vibrio, a large group of species containing several pathogenic members that affect fish and shellfish, and are difficult to identify through both phenotypic and genotypic approaches. the study included analysis of partial sequences of reca, gyrb, mreb, rpod and pyrh genes, as well as the 16s rrna gene. seventeen type strain species were included that were complemented with other reference strains ... | 2016 | 27238556 |