Ontology highlight
ABSTRACT:
PROVIDER: PRJNA689767 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR13378001.fastq.gz | Fastqsanger.gz | |||
| SRR13378002.fastq.gz | Fastqsanger.gz | |||
| SRR13378003.fastq.gz | Fastqsanger.gz | |||
| SRR13378004.fastq.gz | Fastqsanger.gz | |||
| SRR13378005.fastq.gz | Fastqsanger.gz |
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Project description:Seagrass meadows are highly productive ecosystems that are considered hotspots for carbon sequestration. The decline of seagrass meadows of various species has been documented worldwide, including that of Cymodocea nodosa, a widespread seagrass in the Mediterranean Sea. To assess the influence of seagrass decline on the metabolic profile of sediment microbial communities, metaproteomes from two sites, one without vegetation and one with a declining Cymodocea nodosa meadow, were characterised at monthly intervals from July 2017 to October 2018. The differences in the metabolic profile observed between the vegetated and nonvegetated sediment before the decline were more pronounced in the deeper parts of the sediment and disappeared with the decay of the roots and rhizomes. During the decline, the protein richness and diversity of the metabolic profile of the microbial communities inhabiting the nonvegetated sediment became similar to those observed for the vegetated communities. Temporal shifts in the structure of the metabolic profile were only observed in the nonvegetated sediment and were also more pronounced in the deeper parts of the sediment. The assessment of the dynamics of proteins involved in the degradation of organic matter, such as ABC transporters, fermentation-mediating enzymes, and proteins involved in dissimilatory sulphate reduction, reflected the general dynamics of the metabolic profile. Overall, the metabolic profile of the microbial communities inhabiting the nonvegetated sediment was influenced by the decline of seagrass, with stronger shifts observed in the deeper parts of the sediment.
2025-08-04 | PXD054602 | Pride
Project description:<p>Seagrasses are one of the most efficient natural sinks of carbon dioxide (CO2) on Earth. Despite covering less than 0.1% of coastal regions, they have the capacity to bury up to 10% of marine organic matter and can bury the same amount of carbon 35 times faster than tropical rainforests. On land, the soil’s ability to sequestrate carbon is intimately linked to microbial metabolism. Despite the growing attention to the link between plant production, microbial communities, and the carbon cycle in terrestrial ecosystems, these processes remain enigmatic in the sea. Here, we show that seagrasses excrete organic sugars, namely in the form of sucrose, into their rhizospheres. Surprisingly, the microbial communities living underneath meadows do not fully use this sugar stock in their metabolism. Instead, sucrose piles up in the sediments to mM concentrations underneath multiple types of seagrass meadows. Sediment incubation experiments show that microbial communities living underneath a meadow use sucrose at low metabolic rates. Our metagenomic analyses revealed that the distinct community of microorganisms occurring underneath meadows is limited in their ability to degrade simple sugars, which allows these compounds to persist in the environment over relatively long periods of time. Our findings reveal how seagrasses form blue carbon stocks despite the relatively small area they occupy. Unfortunately, anthropogenic disturbances are threatening the long-term persistence of seagrass meadows. Given that these sediments contain a large stock of sugars that heterotopic bacteria can degrade, it is even more important to protect these ecosystems from degradation.</p><p><br></p><p><strong>GC-MS assay of Plant tissues</strong> is reported in the current study <a href='https://www.ebi.ac.uk/metabolights/MTBLS1579' rel='noopener noreferrer' target='_blank'><strong>MTBLS1579</strong></a></p><p><strong>GC-MS assay of Seawater sediment</strong> is reported in <a href='https://www.ebi.ac.uk/metabolights/MTBLS1570' rel='noopener noreferrer' target='_blank'><strong>MTBLS1570</strong></a></p><p><strong>GC-MS assay of Sediment porewater</strong> is reported in <a href='https://www.ebi.ac.uk/metabolights/MTBLS1610' rel='noopener noreferrer' target='_blank'><strong>MTBLS1610</strong></a></p><p><strong>MALDI-MSI assay of Plant roots</strong> is reported in the <a href='https://www.ebi.ac.uk/metabolights/MTBLS1746' rel='noopener noreferrer' target='_blank'><strong>MTBLS1746</strong></a></p>
2022-01-28 | MTBLS1579 | MetaboLights
Project description:<p>Seagrasses are one of the most efficient natural sinks of carbon dioxide (CO2) on Earth. Despite covering less than 0.1% of coastal regions, they have the capacity to bury up to 10% of marine organic matter and can bury the same amount of carbon 35 times faster than tropical rainforests. On land, the soil’s ability to sequestrate carbon is intimately linked to microbial metabolism. Despite the growing attention to the link between plant production, microbial communities, and the carbon cycle in terrestrial ecosystems, these processes remain enigmatic in the sea. Here, we show that seagrasses excrete organic sugars, namely in the form of sucrose, into their rhizospheres. Surprisingly, the microbial communities living underneath meadows do not fully use this sugar stock in their metabolism. Instead, sucrose piles up in the sediments to mM concentrations underneath multiple types of seagrass meadows. Sediment incubation experiments show that microbial communities living underneath a meadow use sucrose at low metabolic rates. Our metagenomic analyses revealed that the distinct community of microorganisms occurring underneath meadows is limited in their ability to degrade simple sugars, which allows these compounds to persist in the environment over relatively long periods of time. Our findings reveal how seagrasses form blue carbon stocks despite the relatively small area they occupy. Unfortunately, anthropogenic disturbances are threatening the long-term persistence of seagrass meadows. Given that these sediments contain a large stock of sugars that heterotopic bacteria can degrade, it is even more important to protect these ecosystems from degradation.</p><p><br></p><p><strong>GC-MS assay of Sediment porewater</strong> is reported in the current study <a href='https://www.ebi.ac.uk/metabolights/MTBLS1610' rel='noopener noreferrer' target='_blank'><strong>MTBLS1610</strong></a></p><p><strong>GC-MS assay of Seawater sediment</strong> is reported in <a href='https://www.ebi.ac.uk/metabolights/MTBLS1570' rel='noopener noreferrer' target='_blank'><strong>MTBLS1570</strong></a></p><p><strong>GC-MS assay of Plant tissues</strong> is reported in <a href='https://www.ebi.ac.uk/metabolights/MTBLS1579' rel='noopener noreferrer' target='_blank'><strong>MTBLS1579</strong></a></p><p><strong>MALDI-MSI assay of Plant roots</strong> is reported in the <a href='https://www.ebi.ac.uk/metabolights/MTBLS1746' rel='noopener noreferrer' target='_blank'><strong>MTBLS1746</strong></a></p>
2022-01-28 | MTBLS1610 | MetaboLights
Project description:<p>Seagrasses are one of the most efficient natural sinks of carbon dioxide (CO2) on Earth. Despite covering less than 0.1% of coastal regions, they have the capacity to bury up to 10% of marine organic matter and can bury the same amount of carbon 35 times faster than tropical rainforests. On land, the soil’s ability to sequestrate carbon is intimately linked to microbial metabolism. Despite the growing attention to the link between plant production, microbial communities, and the carbon cycle in terrestrial ecosystems, these processes remain enigmatic in the sea. Here, we show that seagrasses excrete organic sugars, namely in the form of sucrose, into their rhizospheres. Surprisingly, the microbial communities living underneath meadows do not fully use this sugar stock in their metabolism. Instead, sucrose piles up in the sediments to mM concentrations underneath multiple types of seagrass meadows. Sediment incubation experiments show that microbial communities living underneath a meadow use sucrose at low metabolic rates. Our metagenomic analyses revealed that the distinct community of microorganisms occurring underneath meadows is limited in their ability to degrade simple sugars, which allows these compounds to persist in the environment over relatively long periods of time. Our findings reveal how seagrasses form blue carbon stocks despite the relatively small area they occupy. Unfortunately, anthropogenic disturbances are threatening the long-term persistence of seagrass meadows. Given that these sediments contain a large stock of sugars that heterotopic bacteria can degrade, it is even more important to protect these ecosystems from degradation.</p><p><br></p><p><strong>MALDI-MSI assay of Plant roots</strong> is reported in the current study <a href='https://www.ebi.ac.uk/metabolights/MTBLS1746' rel='noopener noreferrer' target='_blank'><strong>MTBLS1746</strong></a></p><p><strong>GC-MS assay of Seawater sediment</strong> is reported in <a href='https://www.ebi.ac.uk/metabolights/MTBLS1570' rel='noopener noreferrer' target='_blank'><strong>MTBLS1570</strong></a></p><p><strong>GC-MS assay of Plant tissues</strong> is reported in <a href='https://www.ebi.ac.uk/metabolights/MTBLS1579' rel='noopener noreferrer' target='_blank'><strong>MTBLS1579</strong></a></p><p><strong>GC-MS assay of Sediment porewater</strong> is reported in <a href='https://www.ebi.ac.uk/metabolights/MTBLS1610' rel='noopener noreferrer' target='_blank'><strong>MTBLS1610</strong></a></p>
2022-01-28 | MTBLS1746 | MetaboLights
Project description:<p>Seagrasses are one of the most efficient natural sinks of carbon dioxide (CO2) on Earth. Despite covering less than 0.1% of coastal regions, they have the capacity to bury up to 10% of marine organic matter and can bury the same amount of carbon 35 times faster than tropical rainforests. On land, the soil’s ability to sequestrate carbon is intimately linked to microbial metabolism. Despite the growing attention to the link between plant production, microbial communities, and the carbon cycle in terrestrial ecosystems, these processes remain enigmatic in the sea. Here, we show that seagrasses excrete organic sugars, namely in the form of sucrose, into their rhizospheres. Surprisingly, the microbial communities living underneath meadows do not fully use this sugar stock in their metabolism. Instead, sucrose piles up in the sediments to mM concentrations underneath multiple types of seagrass meadows. Sediment incubation experiments show that microbial communities living underneath a meadow use sucrose at low metabolic rates. Our metagenomic analyses revealed that the distinct community of microorganisms occurring underneath meadows is limited in their ability to degrade simple sugars, which allows these compounds to persist in the environment over relatively long periods of time. Our findings reveal how seagrasses form blue carbon stocks despite the relatively small area they occupy. Unfortunately, anthropogenic disturbances are threatening the long-term persistence of seagrass meadows. Given that these sediments contain a large stock of sugars that heterotopic bacteria can degrade, it is even more important to protect these ecosystems from degradation.</p><p><br></p><p><strong>GC-MS assay of Seawater sediment</strong> is reported in the current study <strong>MTBLS1570</strong></p><p><strong>GC-MS assay of Plant tissues</strong> is reported in <a href='https://www.ebi.ac.uk/metabolights/MTBLS1579' rel='noopener noreferrer' target='_blank'><strong>MTBLS1579</strong></a></p><p><strong>GC-MS assay of Sediment porewater</strong> is reported in <a href='https://www.ebi.ac.uk/metabolights/MTBLS1610' rel='noopener noreferrer' target='_blank'><strong>MTBLS1610</strong></a></p><p><strong>MALDI-MSI assay of Plant roots</strong> is reported in the <a href='https://www.ebi.ac.uk/metabolights/MTBLS1746' rel='noopener noreferrer' target='_blank'><strong>MTBLS1746</strong></a></p>
2022-01-28 | MTBLS1570 | MetaboLights
Project description:Seagrass meadows sediments 16S rDNA high throughput sequencing Raw sequence reads
| PRJNA689671 | ENA
Project description:bacterial composition in seagrass meadows water Raw sequence reads
| PRJNA838654 | ENA
Project description:Functional redundancy in bacterial communities is expected to allow microbial assemblages to survive perturbation by allowing continuity in function despite compositional changes in communities. Recent evidence suggests, however, that microbial communities change both composition and function as a result of disturbance. We present evidence for a third response: resistance. We examined microbial community response to perturbation caused by nutrient enrichment in salt marsh sediments using deep pyrosequencing of 16S rRNA and functional gene microarrays targeting the nirS gene. Composition of the microbial community, as demonstrated by both genes, was unaffected by significant variations in external nutrient supply, despite demonstrable and diverse nutrient–induced changes in many aspects of marsh ecology. The lack of response to external forcing demonstrates a remarkable uncoupling between microbial composition and ecosystem-level biogeochemical processes and suggests that sediment microbial communities are able to resist some forms of perturbation.
2010-11-13 | GSE25227 | GEO
Project description:To study the responses of microbial communities to short-term nitrogen addition and warming,here we examine microbial communities in mangrove sediments subjected to a 4-months experimental simulation of eutrophication with 185 g m-2 year-1 nitrogen addition (N), 3oC warming (W) and nitrogen addition*warming interaction (NW).
2022-03-01 | GSE190739 | GEO