Proteomes - Alteromonas mediterranea (strain DSM 17117 / CIP 110805 / LMG 28347 / Deep ecotype)
|Proteome name||Alteromonas mediterranea (strain DSM 17117 / CIP 110805 / LMG 28347 / Deep ecotype)|
|Strain||DSM 17117 / CIP 110805 / LMG 28347 / Deep ecotype|
|Taxonomy||1774373 - Alteromonas mediterranea (strain DSM 17117 / CIP 110805 / LMG 28347 / Deep ecotype)|
|Last modified||October 9, 2016|
|Pan proteome||This proteome is part of the Alteromonas macleodii str. 'Black Sea 11' pan proteome (fasta)|
Alteromonas macleodii is a common marine heterotrophic gamma-proteobacterium. It blooms under conditions of sudden increase in the availability of resources (probably dissolved organic matter released or exudated by phytoplankton blooms). It represent a significant fraction of the bacterial population associated with particles or aggregates (2-5 mm filters) in temperate or tropical waters with average temperatures above 10 degrees Celsius; it is abundant at medium photic zone depths (25-100 m). Isolates cluster by molecular analysis into two major genotypic groups or ecotypes, one found in temperate latitudes in the upper water column and another that is for the most part found in the deep water column of the Mediterranean (where the deep water mass never gets below 12 degrees Celsius).
This strain is one of the latter, having been isolated from 1000 m in the Eastern Mediterranean. Comparison with the type strain ATCC 27126, a representative of the surface water ecotype, indicates that strain DSM 17117 / Deep ecotype (AltDE) is probably better suited to microaerophilic conditions and for the degradation of recalcitrant compounds such as urea. These, together with other features, and the distribution of this genotypic group, indicate that this microbe colonizes relatively large particles that sink rapidly to meso and bathypelagic depths. The genomic data are consistent with a picture of incipient speciation driven by niche specialization. Evidence suggests that even the deep water Mediterranean strain and a Black Sea derived strain (BS11) genomes recruit from surface samples in open ocean locations (adapted from PMIDs 18670397 and 23019517).
- "Comparative genomics of two ecotypes of the marine planktonic copiotroph Alteromonas macleodii suggests alternative lifestyles associated with different kinds of particulate organic matter."
Ivars-Martinez E., Martin-Cuadrado A.-B., D'Auria G., Mira A., Ferriera S., Johnson J., Friedman R., Rodriguez-Valera F.
ISME J. 2008:1194-1212(2008) [PubMed] [Europe PMC] [Abstract]