PXD062682

PXD062682 is an original dataset announced via ProteomeXchange.

Title	Bacterial extracellular vesicles in marine bacteria
Description	Bacterial extracellular vesicles (BEVs) are spherical membranous structures released by bacterial cells that act as a transport and delivery mechanism for various biological compounds. Experimental investigation of BEVs in marine bacteria, largely limited to a number of laboratory model systems, have suggested putative roles in their ecophysiology. Yet the functional potential of BEVs in their ecological context has never been explored directly in the marine environment. Here we report the results of the first large-scale oceanographic survey of marine BEVs carried out across surface waters of the South Pacific Ocean. The presence of marine BEVs was consistently observed across a range of biogeochemical conditions, with an overall abundance comparable to that of bacterial communities (ca. 108 BEVs L-1). The protein cargoes of marine BEVs differed significantly between environmental conditions, being enriched in carbohydrate transporters and hydrolytic enzymes under phytoplankton bloom conditions, and enriched in different iron uptake proteins in nutrient-limited waters, indicating key extracellular functions they perform in marine bacterial communities. Our observations highlight the importance of marine BEVs and their potential functions across oceanic scales, with implications for our general understanding of key processes in marine microbial ecology.
HostingRepository	PRIDE
AnnounceDate	2026-09-07
AnnouncementXML	Submission_2026-09-06_16:31:30.652.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Edaurd Fadeev
SpeciesList	scientific name: metagenome; NCBI TaxID: NEWT:256318;
ModificationList	No PTMs are included in the dataset
Instrument	Q Exactive HF

Revision	Datetime	Status	ChangeLog Entry
0	2025-04-07 06:31:53	ID requested
⏵ 1	2026-09-06 16:31:31	announced

10.1093/ismejo/wrag171;

Fadeev E, Orel N, Tinta T, Afjehi-Sadat L, Liu H, Browning TJ, Yuan Z, Achterberg EP, Biller SJ, Sher DJ, Herndl GJ, Bacterial extracellular vesicles exhibit distinct functional potential across biogeographic provinces of the South Pacific Ocean. ISME J, 20(1):(2026) [pubmed]

submitter keyword: EVs, MVs, bacterioplankton

Eduard Fadeev
contact affiliation	University of Vienna, Austria
contact email	eduard.fadeev@univie.ac.at
lab head
Edaurd Fadeev
contact affiliation	University of Vienna
contact email	eduard.fadeev@univie.ac.at
dataset submitter

Dataset FTP location NOTE: Most web browsers have now discontinued native support for FTP access within the browser window. But you can usually install another FTP app (we recommend FileZilla) and configure your browser to launch the external application when you click on this FTP link. Or otherwise, launch an app that supports FTP (like FileZilla) and use this address: ftp://ftp.pride.ebi.ac.uk/pride/data/archive/2026/09/PXD062682

PRIDE project URI

• PRIDE
  1. PXD062682
     1. Label: PRIDE project
     2. Name: Bacterial extracellular vesicles in marine bacteria