Alteromonas macleodii
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA29969 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| Other | ||||
| SRR10366918_subreads.fastq.gz | Fastqsanger.gz | |||
| SRR10366919_subreads.fastq.gz | Fastqsanger.gz | |||
| SRR10527323_1.fastq.gz | Fastqsanger.gz | |||
| SRR10527323_2.fastq.gz | Fastqsanger.gz |
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Similar Datasets
Project description:In this study we characterized MV production by six different strains of Alteromonas macleodii, a cosmopolitan marine bacterium.
2023-07-20 | PXD037008 | Pride
Project description:Sulfoquinovose (SQ) and sulfoquinovosyl glycerol (SQGro), derived from abundant membrane sulfolipids termed sulfoquinovosyl diacylglycerols (SQDG) produced by photosynthetic organisms, serve as sources of carbon and sulfur for bacteria. The conversion processes of these sulfoquinovosyl compounds (SQ, SQGro, and SQDG) within marine ecosystems, and their quantitative contributions to the marine organic matter pool, are poorly understood. We have identified Alteromonas macleodii, a cosmopolitan marine bacterium, as a novel organism capable of metabolizing SQ and SQGro. A. macleodii possesses a sulfoquinovosidase that converts SQGro to SQ, and is a member of a distinct clade within glycoside hydrolase family 31 distinct from other sulfoqinovosidases. The ubiquitous presence of sulfoquinovosidases and their transcripts throughout marine environments suggests active metabolism of sulfoquinovose glycosides, particularly in the sunlit surface ocean. Complementing these observations, we demonstrate that marine algae and cyanobacteria produce significant quantities of SQGro, and field samples from coastal and open ocean environments enabled estimation of the annual turnover of SQGro in the teragram range. Together with SQDG and SQ, these sulfoquinovosyl compounds constitute a substantial portion of the marine organic sulfur, estimated at around 1.5 petagrams of carbon turnover per annum. These findings reveal a vast, previously unappreciated pool of organosulfonates within the microbial food web that contributes significantly to the marine carbon and sulfur cycles.
2025-08-25 | PXD058686 | Pride
Project description:Sulfoquinovose (SQ) and sulfoquinovosyl glycerol (SQGro), derived from abundant membrane sulfolipids termed sulfoquinovosyl diacylglycerols (SQDG) produced by photosynthetic organisms, serve as sources of carbon and sulfur for bacteria. The conversion processes of these sulfoquinovosyl compounds (SQ, SQGro, and SQDG) within marine ecosystems, and their quantitative contributions to the marine organic matter pool, are poorly understood. We have identified Alteromonas macleodii, a cosmopolitan marine bacterium, as a novel organism capable of metabolizing SQ and SQGro. A. macleodii possesses a sulfoquinovosidase that converts SQGro to SQ, and is a member of a distinct clade within glycoside hydrolase family 31 distinct from other sulfoqinovosidases. The ubiquitous presence of sulfoquinovosidases and their transcripts throughout marine environments suggests active metabolism of sulfoquinovose glycosides, particularly in the sunlit surface ocean. Complementing these observations, we demonstrate that marine algae and cyanobacteria produce significant quantities of SQGro, and field samples from coastal and open ocean environments enabled estimation of the annual turnover of SQGro in the teragram range. Together with SQDG and SQ, these sulfoquinovosyl compounds constitute a substantial portion of the marine organic sulfur, estimated at around 1.5 petagrams of carbon turnover per annum. These findings reveal a vast, previously unappreciated pool of organosulfonates within the microbial food web that contributes significantly to the marine carbon and sulfur cycles.
2025-08-25 | PXD058710 | Pride
Project description:Pangenomics of the marine bacterium Alteromonas macleodii
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Project description:Polysaccharides from macroalgae are important bacterial nutrient source and central biogeochemical component in the oceans. To illuminate the cellular mechanisms of polysaccharide degradation by marine bacteria, growth of Alteromonas macleodii 83-1 on a mix of laminarin, alginate and pectin was characterized using transcriptomics, proteomics and exometabolomics. A. macleodii 83-1 showed two distinct growth stages, with exponential growth during laminarin utilization followed by maintenance during simultaneous alginate/pectin utilization. The biphasic growth coincided with major temporal shifts in gene expression and metabolite secretion, enabling to define major/accessory polysaccharide utilization loci, reconstruct the complete degradation pathways for each polysaccharide, as well as identify temporal phenotypes in other relevant traits. FT-ICR-MS revealed a distinct suite of secreted metabolites for each growth phase, with pyrroloquinoline quinone exclusively produced with alginate/pectin. The finding of substrate-unique phenotypes indicates an exquisite adaptation to polysaccharide utilization with probable relevance for the degradation of macroalgal biomass, which comprises a complex mix of polysaccharides. Moreover, substrate-unique exometabolomes possibly influence metabolic interactions with other community members. Overall, the presence of fine-tuned genetic machineries for polysaccharide degradation and the widespread detection of related CAZymes in global locations indicate an ecological relevance of A. macleodii in marine polysaccharide cycling and bacteria-algae interactions.
2018-08-01 | GSE107306 | GEO
Project description:We have analyzed a natural population of the marine bacterium, Alteromonas macleodii, from a single sample of seawater to evaluate the genomic diversity present. We performed full genome sequencing of four isolates and 161 metagenomic fosmid clones, all of which were assigned to A. macleodii by sequence similarity. Out of the four strain genomes, A. macleodii deep ecotype (AltDE1) represented a different genome, whereas AltDE2 and AltDE3 were identical to the previously described AltDE. Although the core genome (~80%) had an average nucleotide identity of 98.51%, both AltDE and AltDE1 contained flexible genomic islands (fGIs), that is, genomic islands present in both genomes in the same genomic context but having different gene content. Some of the fGIs encode cell surface receptors known to be phage recognition targets, such as the O-chain of the lipopolysaccharide, whereas others have genes involved in physiological traits (e.g., nutrient transport, degradation, and metal resistance) denoting microniche specialization. The presence in metagenomic fosmids of genomic fragments differing from the sequenced strain genomes, together with the presence of new fGIs, indicates that there are at least two more A. macleodii clones present. The availability of three or more sequences overlapping the same genomic region also allowed us to estimate the frequency and distribution of recombination events among these different clones, indicating that these clustered near the genomic islands. The results indicate that this natural A. macleodii population has multiple clones with a potential for different phage susceptibility and exploitation of resources, within a seemingly unstructured habitat.
| S-EPMC3542563 | biostudies-literature
Project description:Alteromonas macleodii Environmetal Fosmids
| PRJNA175354 | ENA
Project description:Alteromonas macleodii Genome sequencing and assembly
| PRJNA338983 | ENA
Project description:Alteromonas macleodii Genome sequencing
| PRJNA838066 | ENA