Evidence map›Paper›PMID 20127086›Full record

ArticleMicrobial ecology2010

Membrane vesicles: a common feature in the extracellular matter of cold-adapted antarctic bacteria.

Alina Frias, Angeles Manresa, Eliandre de Oliveira, Carmen López-Iglesias, Elena Mercade

Erratum issuedAbstract read
PubMed Publisher
In one paragraph

Article in Microbial ecology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
1.9field-weighted citation impact, top 15% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

43 citing papers in PubMed, 69 citations in OpenAlex.

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  15. Outer Membrane Vesicles: Biogenesis, Functions, and Issues.Microbiology and molecular biology reviews : MMBR · 2022
    Review
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4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Alina FriasLaboratori de Microbiologia, Facultat de Farmacia, Universitat de Barcelona, Av. Joan XIII s/n, 08028 Barcelona, Spain.
Angeles Manresa
Eliandre de Oliveira
Carmen López-Iglesias
Elena Mercade
Universitat de Barcelona · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Many Gram-negative, cold-adapted bacteria from the Antarctic environment produce large amounts of extracellular matter, which has potential biotechnology applications. We examined the ultrastructure of extracellular matter from five Antarctic bacteria (Shewanella livingstonensis NF22(T), Shewanella vesiculosa M7(T), Pseudoalteromonas sp. M4.2, Psychrobacter fozii NF23(T), and Marinobacter guineae M3B(T)) by transmission electron microscopy after high-pressure freezing and freeze substitution. All analyzed extracellular matter appeared as a netlike mesh composed of a capsular polymer around cells and large numbers of membrane vesicles (MVs), which have not yet been described for members of the genera Psychrobacter and Marinobacter. MVs showed the typical characteristics described for these structures, and seemed to be surrounded by the same capsular polymer as that found around the cells. The analysis of MV proteins from Antarctic strains by SDS-PAGE showed different banding profiles in MVs compared to the outer membrane, suggesting some kind of protein sorting during membrane vesicle formation. For the psychrotolerant bacterium, S. livingstonensis NF22(T), the growth temperature seemed to influence the amount and morphology of MVs. In an initial attempt to elucidate the functions of MVs for this psychrotolerant bacterium, we conducted a proteomic analysis on membrane vesicles from S. livingstonensis NF22(T) obtained at 4 and 18 degrees C. At both temperatures, MVs were highly enriched in outer membrane proteins and periplasmic proteins related to nutrient processing and transport in Gram-negative bacteria suggesting that MVs could be related with nutrient sensing and bacterial survival. Differences were observed in the expression of some proteins depending on incubation temperature but further studies will be necessary to define their roles and implications in the survival of bacteria in the extreme Antarctic environment.

Indexed as

Bacterial Outer Membrane ProteinsCell MembraneCold TemperatureElectrophoresis, Polyacrylamide GelExtracellular SpaceMarinobacterMass SpectrometryMicroscopy, Electron, TransmissionOrganellesProteomePseudoalteromonasShewanellaBacterial Outer Membrane ProteinsProteome

Identifiers

PMID20127086
OpenAlexW1997717099

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.