Evidence map›Paper›PMID 33037324›Full record

ArticleThe ISME journal2021

Extracellular heme recycling and sharing across species by novel mycomembrane vesicles of a Gram-positive bacterium.

Meng Wang, Yong Nie, Xiao-Lei Wu

Open access · hybridAbstract read
In one paragraph

Article in The ISME journal, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
1.7field-weighted citation impact, top 17% 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

25 citing papers in PubMed, 39 citations in OpenAlex.

  1. Article
  2. Frontiers in bacterial outer membrane vesicles: From basic characteristics to cancer therapy.Chinese journal of cancer research = Chung-kuo yen cheng yen chiu · 2026
    Article
  3. Review
  4. Article
  5. Article
  6. Effect of different fermentation substrates on rumen microorganisms and microbe-derived extracellular vesicles (EVs).Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2025
    Article
  7. Bacterial extracellular vesicles target different bacterial species, impairing cell division and diminishing their pathogenicity.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  8. Article
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  11. Article
  12. Article
  13. Impact of MSMEG5257 Deletion onMicroorganisms · 2024
    Article
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  15. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Meng WangCollege of Engineering, Peking University, 100871, Beijing, China.ORCID http://orcid.org/0000-0002-3610-5934
Yong NieCollege of Engineering, Peking University, 100871, Beijing, China. nieyong@pku.edu.cn.ORCID http://orcid.org/0000-0002-5940-1218
Xiao-Lei WuCollege of Engineering, Peking University, 100871, Beijing, China. xiaolei_wu@pku.edu.cn.ORCID http://orcid.org/0000-0002-9897-6903
Peking University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Microbes spontaneously release membrane vesicles (MVs), which play roles in nutrient acquisition and microbial interactions. Iron is indispensable for microbes, but is a difficult nutrient to acquire. However, whether MVs are also responsible for efficient iron uptake and therefore involved in microbial interaction remains to be elucidated. Here, we used a Gram-positive strain, Dietzia sp. DQ12-45-1b, to analyze the function of its MVs in heme-iron recycling and sharing between species. We determined the structure and constituent of MVs and showed that DQ12-45-1b releases MVs originating from the mycomembrane. When comparing proteomes of MVs between iron-limiting and iron-rich conditions, we found that under iron-limiting conditions, heme-binding proteins are enriched. Next, we proved that MVs participate in extracellular heme capture and transport, especially in heme recycling from environmental hemoproteins. Finally, we found that the heme carried in MVs is utilized by multiple species, and we further verified that membrane fusion efficiency and species evolutionary distance determine heme delivery. Together, our findings strongly suggest that MVs act as a newly identified pathway for heme recycling, and represent a public good shared between phylogenetically closely related species.

Indexed as

Gram-Positive BacteriaHemeBacterial ProteinsBiological TransportCell MembraneCell WallBacterial ProteinsHeme

Identifiers

PMID33037324
PMCPMC8027190
OpenAlexW3092385290

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.