| identification of a novel ice-nucleating bacterium of antarctic origin and its ice nucleation properties. | a novel ice-nucleating bacterium (inb) was isolated from ross island, antarctica. inbs could be isolated more frequently than was generally thought. inb strain in-74 was found in the white colony group. strain in-74 was identified from its taxonomic characteristics as a novel inb, pseudomonas antarctica in-74. when strain in-74 was cultured aerobically in a medium consisting of the ice-nucleating broth (ph 7.0) for 6 days at 4 degrees c, the ice-nucleating activity of strain in-74 cells was obta ... | 1999 | 10191036 |
| properties of a novel extracellular cell-free ice nuclei from ice-nucleating pseudomonas antarctica in-74. | some ice-nucleating bacterial strains, including pantoea ananatis (erwinia uredovora), pseudomonas fluorescens, and pseudomonas syringae isolates, were examined for the ability to shed ice nuclei into the growth medium. a novel ice-nucleating bacterium, pseudomonas antarctica in-74, was isolated from ross island, antarctica. cell-free ice nuclei from p. antarctica in-74 were different from the conventional cell-free ice nuclei and showed a unique characterization. cell-free ice nuclei were purif ... | 2003 | 14519981 |
| 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 |
| feather mercury concentrations in southern ocean seabirds: variation by species, site and time. | we studied mercury contamination in 25 seabird species breeding along a latitudinal gradient across the southern ocean, from gough island (40°s) through marion island (47°s) to byers peninsula (63°s). total mercury concentrations in body feather samples of adults caught at breeding colonies from 2008 to 2011 were determined. krill (euphausia spp.) and other zooplankton consumers had low mercury concentrations (gentoo penguin pygoscelis papua, chinstrap penguin pseudomonas antarctica, common divi ... | 2016 | 27267741 |
| complete genome sequence of pseudomonas antarctica pamc 27494, a bacteriocin-producing psychrophile isolated from antarctica. | antimicrobial-producing, cold-adapted microorganisms have great potential for biotechnological applications in food, pharmaceutical, and cosmetic industries. pseudomonas antarctica pamc 27494, a psychrophile exhibiting antimicrobial activity, was isolated from an antarctic freshwater sample. here we report the complete genome of p. antarctica pamc 27494. the strain contains a gene cluster encoding microcin b which inhibits dna regulations by targeting the dna gyrase. pamc 27494 may produce r-typ ... | 2017 | 28818601 |