| taxonomic characterization and the bio-potential of bacteria isolated from glacier ice cores in the high arctic. | glacier ice and firn cores have ecological and biotechnological importance. the present study is aimed at characterizing bacteria in crustal ice cores from svalbard, the arctic. counts of viable isolates ranged from 10 to 7000 cfu/ml (mean 803 cfu/ml) while the total bacterial numbers ranged from 7.20 × 10(4) to 2.59 × 10(7) cells ml(-1) (mean 3.12 × 10(6) cells ml(-1) ). based on 16s rdna sequence data, the identified species belonged to seven species, namely bacillus barbaricus, pseudomonas ... | 2016 | 26567474 |
| ecology and characterization of polyhydroxyalkanoate-producing microorganisms on and in plants. | polyhydroxyalkanoates are energy reserve polymers produced by bacteria to survive periods of starvation in natural habitats. little is known about the ecology of polyhydroxyalkanoate-producing bacteria. to analyse the occurrence of this specific group on/in seven different plant species, a combined strategy containing culture-dependent and -independent methods was applied. using microbial fingerprint techniques (single-strand conformation polymorphism analysis with specific primers for phac gene ... | 2009 | 19656194 |
| biocatalytic production of dihydrocoumarin from coumarin by saccharomyces cerevisiae. | natural dihydrocoumarin, which is of great interest in the flavor industry, was biotechnologically produced from pure coumarin or tonka bean meal with pseudomonas orientalis, bacillus cereus, and various saccharomyces cerevisiae strains. coumarin was shown to be converted to melilotic acid, which yielded dihydrocoumarin upon distillation during purification. about 1.0 g/l product was obtained from 25 g/l tonka beans with s. cerevisiae within 147 h. this dihydrocoumarin thus fulfills all of the c ... | 2006 | 16910713 |
| pseudomonas extremorientalis sp. nov., isolated from a drinking water reservoir. | on the basis of phenotypic and genotypic characteristics and 16s rdna sequence analysis, a novel species belonging to the genus pseudomonas sensu stricto was identified. the saprophytic, fluorescent bacterium, designated kmm 3447(t), was isolated from a drinking water reservoir near vladivostok city, russia. the novel organism was a gram-negative, aerobic, rod-shaped bacterium that produced a cyclic depsipeptide with surface-active properties. it degraded casein, but did not degrade gelatin, sta ... | 2002 | 12508877 |
| taxonomic study of bacteria isolated from lebanese spring waters: proposal for pseudomonas cedrella sp. nov. and p. orientalis sp. nov. | deoxyribonucleic acid relatedness studies (s1 nuclease method) have shown that 15 strains isolated from three lebanese spring waters, belonging to the genus pseudomonas, formed two homogeneous dna groups, with a within-group dna relatedness ranging from 70 to 100%. these groups are referred to as pseudomonas cedrella sp. nov. and pseudomonas orientalis sp.nov. these strains were previously grouped on the basis of a numerical analysis in phenons ve, vd, vg, and vi. dna relatedness with 65 strains ... | 1999 | 10422691 |
| ppzpms--a novel group of cyclic lipodepsipeptides produced by the phytophthora alni associated strain pseudomonas sp. jx090307--the missing link between the viscosin and amphisin group. | the closely related to the pseudomonas orientalis strain pseudomonas sp. acc. no. jx090307 was isolated from hyphae of the phytopathogenic oomycete phytophthora alni spp. alni. in in-vitro antagonistic tests, the living bacterium jx090307 and its cell extract showed antibiosis activity against different fungal pathogens of forest tree species, particularly against verticillium dahliae and some strains of p. alni ssp. alni. investigating the cell extract of jx090307 by means of lc-esi-q-tof-ms an ... | 2014 | 25230511 |
| population structure and diversity of phenazine-1-carboxylic acid producing fluorescent pseudomonas spp. from dryland cereal fields of central washington state (usa). | certain strains of the rhizosphere bacterium pseudomonas fluorescens contain the phenazine biosynthesis operon (phzabcdefg) and produce redox-active phenazine antibiotics that suppress a wide variety of soilborne plant pathogens. in 2007 and 2008, we isolated 412 phenazine-producing (phz(+)) fluorescent pseudomonas strains from roots of dryland wheat and barley grown in the low-precipitation region (<350 mm annual precipitation) of central washington state. based on results of box-pcr genomic fi ... | 2012 | 22383119 |
| psychrophilic pseudomonads from antarctica: pseudomonas antarctica sp. nov., pseudomonas meridiana sp. nov. and pseudomonas proteolytica sp. nov. | thirty-one bacteria that belonged to the genus pseudomonas were isolated from cyanobacterial mat samples that were collected from various water bodies in antarctica. all 31 isolates were psychrophilic; they could be divided into three groups, based on their protein profiles. representative strains of each of the three groups, namely cms 35(t), cms 38(t) and cms 64(t), were studied in detail. based on 16s rrna gene sequence analysis, it was established that the strains were related closely to the ... | 2004 | 15143013 |