| psychroserpens burtonensis gen. nov., sp. nov., and gelidibacter algens gen. nov., sp. nov., psychrophilic bacteria isolated from antarctic lacustrine and sea ice habitats. | psychrophilic, yellow-pigmented, seawater-requiring bacteria isolated from the pycnocline of meromictic burton lake and from sea ice cores obtained in the vestfold hills (68 degrees s, 78 degrees e) in eastern antarctica were characterized. phenotypic analysis showed that the strains isolated formed two distinct taxa. the first taxon included nonmotile, nutritionally fastidious strains that were isolated from the pycnocline of burton lake. the cells of these strains were morphologically variant, ... | 1997 | 9226898 |
| physicochemical parameters for growth of the sea ice bacteria glaciecola punicea acam 611(t) and gelidibacter sp. strain ic158. | the water activity and ph ranges for growth of glaciecola punicea (a psychrophile) were extended when this organism was grown at suboptimal rather than optimal temperatures. no such extension was observed for gelidibacter sp. strain ic158 (a psychrotolerant bacterium) at analogous temperatures. salinity and ph may be primary physicochemical parameters controlling bacterial community development in sea ice. | 1999 | 10427082 |
| poles apart: biodiversity and biogeography of sea ice bacteria. | this review introduces the subjects of bacterial biodiversity and biogeography. studies of biogeography are important for understanding biodiversity, the occurrence of threatened species, and the ecological role of free-living and symbiotic prokaryotes. a set of postulates is proposed for biogeography as a guide to determining whether prokaryotes are "cosmopolitan" (found in more than one geographic location on earth) or candidate endemic species. the term "geovar" is coined to define a geograph ... | 1999 | 10547690 |
| phylogenetic analysis of the succession of bacterial communities in the great south bay (long island). | bacterial community composition and succession were examined over the course of the summer season in the great south bay, long island, ny, usa, using a 16s rdna clone library approach. there was a progression of changes in dominant species in the libraries during the summer of 1997. the july library had several groups dominant, the sar407 relatives of the alpha-proteobacteria (24%) and the sar86 (18%), sulfur-oxidizing symbiont relatives (8%) of the gamma-proteobacteria, and unidentified cytopha ... | 2001 | 11248393 |
| polyamine distribution profiles in newly validated genera and species within the flavobacterium-flexibacter-cytophaga-sphingobacterium complex. | cellular polyamines of 58 strains belonging to the flavobacterium-flexibacter-cytophaga-sphingobacterium complex were analysed by hplc. homospermidine was found in all species of flavobacterium, chryseobacterium, empedobacter, myroides, cellulophaga, salegentibacter, psychroserpens and gelidibacter of the family flavobacteriaceae. flavobacterium ferrugineum located outside of this family also contained homospermidine. cytophaga fermentans and c. xylanolytica belonging to the family bacteroidacea ... | 2001 | 11548199 |
| phylogenetic diversity of numerically important arctic sea-ice bacteria cultured at subzero temperature. | heterotrophic bacteria in sea ice play a key role in carbon cycling, but little is known about the predominant players at the phylogenetic level. in a study of both algal bands and clear ice habitats within summertime arctic pack ice from the chukchi sea, we determined the abundance of total bacteria and actively respiring cells in melted ice samples using epifluorescence microscopy and the stains 4', 6'-diamidino-2-phenylindole 2hcl (dapi) and 5-cyano-2,3-ditolyl tetrazolium chloride (ctc), res ... | 2002 | 12037610 |
| gelidibacter mesophilus sp. nov., a novel marine bacterium in the family flavobacteriaceae. | two gram-negative, aerobic, heterotrophic, marine bacteria, isolated from mediterranean sea water off the coast near valencia (spain), were the object of this study. these non-motile, yellow-pigmented, rod-shaped strains have been studied by means of dna-dna hybridization, 16s rrna sequencing and cultural and physiological features. phylogenetic analysis showed that both strains belong to the phylum cytophaga-flavobacterium-bacteroides, and their closest neighbour is the psychrophilic bacterium ... | 2002 | 12148647 |
| formosa algae gen. nov., sp. nov., a novel member of the family flavobacteriaceae. | four light-yellow-pigmented, gram-negative, short-rod-shaped, non-motile isolates were obtained from enrichment culture during degradation of the thallus of the brown alga fucus evanescens. the isolates studied were chemo-organotrophic, alkalitolerant and mesophilic. polar lipids were analysed and phosphatidylethanolamine was the only phospholipid identified. the predominant cellular fatty acids were 15 : 0, i15 : 0, ai15 : 0, i15 : 1 and 15 : 1(n-6). the dna g+c contents of the four strains wer ... | 2004 | 15143012 |
| novel members of the family flavobacteriaceae from antarctic maritime habitats including subsaximicrobium wynnwilliamsii gen. nov., sp. nov., subsaximicrobium saxinquilinus sp. nov., subsaxibacter broadyi gen. nov., sp. nov., lacinutrix copepodicola gen. nov., sp. nov., and novel species of the genera bizionia, gelidibacter and gillisia. | several orange- and yellow-pigmented, halophilic, strictly aerobic, chemoheterotrophic, gram-negative strains were isolated during investigations of maritime antarctic habitats, including coastal fast sea-ice brine and algae, crustaceans and quartz stone sublithic cyanobacterial biofilms. isolates investigated in this study belonged to the marine clade of the family flavobacteriaceae and represented lineages that were either distinct from species with validly published names or appeared to be di ... | 2005 | 16014468 |
| yeosuana aromativorans gen. nov., sp. nov., a mesophilic marine bacterium belonging to the family flavobacteriaceae, isolated from estuarine sediment of the south sea, korea. | a marine bacterium, gw1-1t, capable of degrading benzo[a]pyrene (bap), was isolated from estuarine sediments of the south sea (the korea strait), korea, after an enrichment culture maintained for 2 years in a medium supplemented with a mixture of bap and pyrene. the strain formed yellowish-brown colonies on marine agar 2216. cells were strictly aerobic, non-motile, gram-negative rods and produced non-diffusible carotenoid pigments. optimal growth occurred in the presence of 1 % (w/v) nacl and at ... | 2006 | 16585684 |
| extremophile extracts and enhancement techniques show promise for the development of a live vaccine against flavobacterium columnare. | the effects of temperature, ionic strength, and new cryopreservatives derived from polar ice bacteria were investigated to help accelerate the development of economical, live attenuated vaccines for aquaculture. extracts of the extremophile gelidibacter algens functioned very well as part of a lyophilization cryoprotectant formulation in a 15-week storage trial. the bacterial extract and trehalose additives resulted in significantly higher colony counts of columnaris bacteria (flavobacterium col ... | 2009 | 19538952 |
| meridianimaribacter flavus gen. nov., sp. nov., a member of the family flavobacteriaceae isolated from marine sediment of the south china sea. | a gram-staining-negative, rod-shaped marine bacterium, designated strain nh57n(t), isolated from sandy sediment in the mischief reef of the south china sea, was characterized based on its physiological and biochemical features, fatty acid profile and phylogenetic position. 16s rrna gene sequence analysis revealed a clear affiliation with the family flavobacteriaceae. strain nh57n(t) showed the closest phylogenetic relationship with members of the genera gaetbulibacter, gelidibacter, subsaxibacte ... | 2010 | 19648321 |
| marine bacterioplankton diversity and community composition in an antarctic coastal environment. | the bacterial community inhabiting the water column at terra nova bay (ross sea, antarctica) was examined by the fluorescent in situ hybridization (fish) technique and the genotypic and phenotypic characterization of 606 bacterial isolates. overall, the fish analysis revealed a bacterioplankton composition that was typical of antarctic marine environments with the cytophaga/flavobacter (cf) group of bacteroidetes that was equally dominant with the actinobacteria and gammaproteobacteria. as sampl ... | 2011 | 21748267 |
| impact of intensive land-based fish culture in qingdao, china, on the bacterial communities in surrounding marine waters and sediments. | the impact of intensive land-based fish culture in qingdao, china, on the bacterial communities in surrounding marine environment was analyzed. culture-based studies showed that the highest counts of heterotrophic, ammonium-oxidizing, nitrifying, and nitrate-reducing bacteria were found in fish ponds and the effluent channel, with lower counts in the adjacent marine area and the lowest counts in the samples taken from 500 m off the effluent channel. denaturing gradient gel electrophoresis (dgge) ... | 2011 | 21922024 |