PXD054602-1

PXD054602 is an original dataset announced via ProteomeXchange.

Title	Influence of seagrass decline on the metabolic profile of sediment microbial communities
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.
HostingRepository	PRIDE
AnnounceDate	2025-08-04
AnnouncementXML	Submission_2025-08-03_19:25:04.956.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Marino Korlević
SpeciesList	scientific name: Escherichia coli; NCBI TaxID: 562;
ModificationList	monohydroxylated residue; iodoacetamide derivatized residue
Instrument	Q Exactive

Revision	Datetime	Status	ChangeLog Entry
0	2024-08-05 08:27:14	ID requested
⏵ 1	2025-08-03 19:25:05	announced

10.1186/s40793-025-00750-1;

Markovski M, Najdek M, Zhao Z, Herndl GJ, Korlevi, ć M, Shift in the metabolic profile of sediment microbial communities during seagrass decline. Environ Microbiome, 20(1):93(2025) [pubmed]

submitter keyword: marine microbial metaproteome

Zihao Zhao
contact affiliation	University of Vienna
contact email	zihao.zhao@univie.ac.at
lab head
Marino Korlević
contact affiliation	Ruđer Bošković Institute
contact email	marino.korlevic@irb.hr
dataset submitter

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PRIDE project URI

• PRIDE
  1. PXD054602
     1. Label: PRIDE project
     2. Name: Influence of seagrass decline on the metabolic profile of sediment microbial communities