| psychrobacter proteolyticus sp. nov., a psychrotrophic, halotolerant bacterium isolated from the antarctic krill euphausia superba dana, excreting a cold-adapted metalloprotease. | an antarctic marine bacterium (strain 116) excreting an extracellular cold-adapted metalloprotease was subjected to a detailed polyphasic taxonomic investigation. strain 116 was previously isolated from the stomach of a specimen of the antarctic krill euphasia superba dana and tentatively characterized as sphingomonas paucimobilis 116. the 16s rdna sequence analysis showed that the strain is in fact related to species of the genus psychrobacter, next to psychrobacter glacincola (97.4% similarity ... | 2001 | 11403398 |
| psychrobacter submarinus sp. nov. and psychrobacter marincola sp. nov., psychrophilic halophiles from marine environments. | two novel psychrophilic, halophilic, psychrobacter-like bacteria, strains kmm 225t and kmm 277t, were isolated from sea water and the internal tissues of an ascidian polysyncraton sp. specimen, respectively, and characterized using a polyphasic approach, which included phenotypic, genotypic, chemotaxonomic and phylogenetic analyses. the novel marine isolates were gram-negative, aerobic, coccoid, oxidase- and catalase-positive, non-pigmented, non-motile, psychrophilic and halophilic and they util ... | 2002 | 12148642 |
| psychrobacter pulmonis sp. nov., isolated from the lungs of lambs. | unusual gram-negative, catalase- and oxidase-positive, coccus-shaped bacteria isolated from the lungs of two lambs were characterized by phenotypic and molecular-genetic methods. comparative 16s rrna gene sequencing studies demonstrated that the unknown isolates were genealogically highly related to each other (99.8% sequence similarity) and represent a novel subline within the genus psychrobacter. the unknown bacterium was phylogenetically closely related to, but distinct from, psychrobacter ph ... | 2003 | 12710606 |
| characterization of several psychrobacter strains isolated from antarctic environments and description of psychrobacter luti sp. nov. and psychrobacter fozii sp. nov. | eleven psychrophilic bacteria isolated from antarctic coastal marine environments were subjected to a polyphasic taxonomic study. the isolates were oxidase-positive, halotolerant, gram-negative, non-motile coccobacilli with a strictly oxidative metabolism. the dna g + c content ranged from 44 to 47 mol%. dna-dna hybridization experiments showed six homology groups, two of them related at the species level to the type strain of psychrobacter immobilis, lmg 7203t (70-83%). the highest dna relatedn ... | 2003 | 12892132 |
| psychrobacter okhotskensis sp. nov., a lipase-producing facultative psychrophile isolated from the coast of the okhotsk sea. | a facultatively psychrophilic bacterium, strain md17(t), which hydrolyses lipids at 5 degrees c, was isolated from the monbetsu coast of the okhotsk sea in hokkaido, japan, when ice carried by the cold current came to the area. the isolate is an aerobic, non-motile coccobacillus that reduces nitrate to nitrite and hydrolyses tweens 20, 40, 60 and 80, but not gelatin, dna or alginic acid. the isolate grows at 0 degrees c, but not at temperatures higher than 36 degrees c; its optimum growth temper ... | 2003 | 14657134 |
| diversity and antagonistic activity of sea ice bacteria isolated from the sea of japan. | the aim of the study was to survey cultivable heterotrophic bacteria from sea ice samples collected from peter the great bay of the sea of japan, and to test the isolates for antagonistic activity. a total of 195 strains were isolated and investigated by a phenotypic approach. the 16s rrna gene sequence analysis of thirty eight strains revealed primarily representatives of the class gammaproteobacteria, phylum bacteroidetes, and phylum actinobacteria. members of the class alphaproteobacteria wer ... | 2008 | 21558710 |
| protease and lipase activities of fungal and bacterial strains derived from an artisanal raw ewe's milk cheese. | we previously identified the microbiota present during cheese ripening and observed high protease and lipase activity in divle cave cheese. to determine the contribution of individual isolates to enzyme activities, we investigated a range of species representing this microbiota for their proteolytic and lipolytic ability. in total, 17 fungal, 5 yeast and 18 bacterial strains, previously isolated from divle cave cheese, were assessed. qualitative protease and lipase activities were performed on s ... | 2016 | 27541978 |