| phylogenetic inferences and taxonomic consequences of 16s ribosomal dna sequence comparison of chromohalobacter marismortui, volcaniella eurihalina, and deleya salina and reclassification of v. eurihalina as halomonas eurihalina comb. nov. | the phylogenetic positions of the moderately halophilic bacteria chromohalobacter marismortui, volcaniella eurihalina, and deleya salina were determined by pcr amplification of rrna genes and direct sequencing. the resulting data were compared with data for other bacteria obtained from 16s rrna sequence databases. c. marismortui, v. eurihalina, and d. salina clustered phylogenetically within the gamma subclass of the proteobacteria and are closely related to other species on the halomonas-deleya ... | 1995 | 7547290 |
| phylogenetic relationships between some members of the genera deleya, halomonas, and halovibrio. | the genera halomonas and deleya, which constitute the family halomonadaceae, are difficult to differentiate on the basis of phenotypic and chemotaxonomic attributes. dna-rrna hybridization studies have indicated that some halomonas spp. have the same level of relationship to the type species of the genus deleya as some deleya spp. a phylogenetic analysis of the 16s rrna sequences of seven members of the halomonadaceae indicated that the members of the genera halomonas and deleya do not form sepa ... | 1993 | 8240950 |
| extremely halophilic denitrifying bacteria from hypersaline inland lakes, halovibrio denitrificans sp. nov. and halospina denitrificans gen. nov., sp. nov., and evidence that the genus name halovibrio fendrich 1989 with the type species halovibrio variabilis should be associated with dsm 3050. | anaerobic enrichments with acetate as electron donor and nitrate as electron acceptor at 4 m nacl from inland, hypersaline lake sediments from central asia resulted in the isolation of several extremely halophilic bacteria that comprised two subgroups, most with vibrio-shaped cells and a single strain with rod-shaped cells. members of both subgroups were extremely halophilic, with growth occurring in 2-5 m nacl with an optimum at 2-3 m. 16s rrna gene sequence analysis showed a close affiliation ... | 2006 | 16449444 |
| the status of the genus name halovibrio fendrich 1989 and the identity of the strains pseudomonas halophila dsm 3050 and halomonas variabilis dsm 3051. request for an opinion. | during the course of studies on halophilic, gram-negative bacteria, a comparison of two strains of halophilic bacteria, pseudomonas halophila dsm 3050 and halomonas variabilis dsm 3051 (formerly halovibrio variabilis) demonstrated that the characteristics of strain dsm 3050 corresponded to the original description of halovibrio variabilis and those of dsm 3051 to p. halophila, both of which had been isolated from the great salt lake in utah [fendrich, c. (1988). syst appl microbiol 11, 36-43]. i ... | 2006 | 16449462 |
| salicola marasensis gen. nov., sp. nov., an extremely halophilic bacterium isolated from the maras solar salterns in peru. | six strains of extremely halophilic bacteria were isolated from several crystallizer ponds of the maras solar salterns in the peruvian andes. on the basis of 16s rrna gene sequence similarity, g+c contents and dna-dna hybridization results, the six isolates constituted a genomically homogeneous group affiliated with the gammaproteobacteria. the closest relatives were members of the halophilic genera halovibrio and halospina, which showed 16s rrna gene sequence similarities below 97 % and whole-g ... | 2006 | 16825651 |
| microbial community structure in three deep-sea carbonate crusts. | carbonate crusts in marine environments can act as sinks for carbon dioxide. therefore, understanding carbonate crust formation could be important for understanding global warming. in the present study, the microbial communities of three carbonate crust samples from deep-sea mud volcanoes in the eastern mediterranean were characterized by sequencing 16s ribosomal rna (rrna) genes amplified from dna directly retrieved from the samples. in combination with the mineralogical composition of the crus ... | 2006 | 16909345 |
| halotalea alkalilenta gen. nov., sp. nov., a novel osmotolerant and alkalitolerant bacterium from alkaline olive mill wastes, and emended description of the family halomonadaceae franzmann et al. 1989, emend. dobson and franzmann 1996. | a novel gram-negative, motile, nonsporulating, rod-shaped bacterium isolated from alkaline sludge-like wastes ('alpeorujo' or 'alperujo') of two-phase olive oil extraction is described. the strain, designated aw-7(t), is an obligate aerobe that is halotolerant (tolerating up to 15 % w/v nacl), sugar-tolerant (tolerating up to 45 % and 60 % w/v (+)-d-glucose and maltose respectively; these are the highest concentrations tolerated by any known members of the bacteria domain) and alkalitolerant (gr ... | 2007 | 17766858 |
| screening and isolation of halophilic bacteria producing extracellular hydrolyses from howz soltan lake, iran. | screening of bacteria from different areas of howz soltan playa, a hypersaline lake in the central desert zone of iran, led to the isolation of 231 moderately halophilic bacteria, which were able to grow optimally in media with 5-15% of salt, and 49 extremely halophilic microorganisms that required 20-25% of salt for optimal growth. these isolates produced a great variety of extracellular hydrolytic enzymes. a total of 195, 177, 100, 95, 92, 68, 65, 33, and 28 strains produced lipases, amylases, ... | 2009 | 19037673 |
| characterization of halophiles isolated from solar salterns in baja california, mexico. | solar salterns are extreme hypersaline environments that are five to ten times saltier than seawater (150-300 g l(-1) salt concentration) and typically contain high numbers of halophiles adapted to tolerate such extreme hypersalinity. thirty-five halophile cultures of both bacteria and archaea were isolated from the exportadora de sal saltworks in guerrero negro, baja california, mexico. 16s rrna sequence analysis showed that these cultured isolates included members belonging to the halorubrum, ... | 2009 | 19418017 |
| survival of extremely and moderately halophilic isolates of tunisian solar salterns after uv-b or oxidative stress. | adaptation to a solar saltern environment requires mechanisms providing tolerance not only to salinity but also to uv radiation (uvr) and to reactive oxygen species (ros). we cultivated prokaryote halophiles from two different salinity ponds: the concentrator m1 pond (240 g·l(-1) nacl) and the crystallizer ts pond (380 g·l(-1) nacl). we then estimated uv-b and hydrogen peroxide resistance according to the optimal salt concentration for growth of the isolates. we observed a higher biodiversity of ... | 2011 | 22017705 |