Pseudoalteromonas haloplanktis
A Microbial Biorealm page on the genus Pseudoalteromonas haloplanktis
Classification
Higher order taxa
Bacteria; Proteobacteria; Gammaproteobacteria; Alteromonadales; Pseudoalteromonadaceae; Pseudoalteromonas
Species
P. agarivorans, P. aliena, P. antarctica, P. arctica, P. atlantica, P. aurantia, P. byunsanensis, P. carrageenovora, P. chazhmella, P. citrea, P. denitrificans, P. distincta, P. elyakovii, P. espejiana, P. flavipulchra, P. ganghwensis, P. gracilis, P. haloplanktis, P. issachenkonii, P. luteoviolacea, P. maricaloris, P. marina, P. mariniglutinosa, P. nigrifaciens, P. paragorgicola, P. peptidolyticam P. phenolica, P. piscicida, P. porphyrae, P. prydzensis, P. rubra, P. ruthenica, P. sagamiensis, P. spiralis, P. spongiae, P. telluritireducens, P. tetraodonis, P. translucida, P. tunicate, P. ulvae, P. undina, P. viridis, P. whanghaensis, P. sp.
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NCBI: Taxonomy Genome: -P. haloplanktis TAC 125 chromosome 1 -P. haloplanktis TAC 125 chromosome II |
Description and significance
Pseudoaltermonas haloplanktis is a curve, rod shaped (0.2 to 1.5 by 1.8 to 3 µm), Antarctica psychrophile bacterium that is composed mainly in ~40% DNA G + C content (Gauthier et al). It was initially called Alteromonas tetraodonis, but has been reclassified as Alteromonas haloplanktis then to Pseudoalteromonas haloplanktis from the Phylogenetic assays that was done by Gauthier et al Gauthier et al. In addition, Pseudoaltermonas haloplanktis is a Gram negative bacterium that is non-spore-forming, not luminescent, and is motile by polar flagella. This organism was isolated from the Antartic coastal sea water and is found to grow only in marine environment at ~20ºC. Researchers have sequenced some of its genome such as DNA Ligase and cellulase to give an understanding of how its enzymatic proteins allow it to adapt at such low temperature.
Genome structure
Pseudoalteromonas haloplanktis is an aerobe that has no fermentative metabolism. They are rod-shaped bacteria that are classfied as sub species: Pseudoalteromonas haloplanktis subsp. haloplanktis and Pseudoalteromonas haloplanktis subsp. tetraodonis. Strain Pseudoalteromonas haloplanktis TAC 125 was completely sequenced and found to have 2 chromosomes, Chromosome I and Chromosome II. Chrosomoe I has
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Cell structure and metabolism
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Ecology
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Pathology
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Application to Biotechnology
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Current Research
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References
Edited by Kim Ngo, a student of Rachel Larsen
