Evidence map›Paper›PMID 29946195›Full record

ArticleThe ISME journal2018

Ixodes scapularis does not harbor a stable midgut microbiome.

Benjamin D Ross, Beth Hayes, Matthew C Radey, Xia Lee, Tanya Josek, Jenna Bjork, David Neitzel, Susan Paskewitz, Seemay Chou, Joseph D Mougous

Open access · bronzeAbstract read
In one paragraph

Article in The ISME journal, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed
11.5field-weighted citation impact, top 1% 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

71 citing papers in PubMed, 150 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Spatiotemporal and tissue-specific dynamics of bacterial communities in adult femaleFrontiers in cellular and infection microbiology · 2026
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  5. Article
  6. Review
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  8. Article
  9. Article
  10. Review
  11. Bacterial community of ticks (Acari: Ixodidae) and mammals from Arauca, Colombian Orinoquia.International journal for parasitology. Parasites and wildlife · 2024
    Article
  12. Article
  13. Article
  14. Article
  15. A metalloprotease secreted by an environmentally acquired gut bacterium hindersFrontiers in cellular and infection microbiology · 2024
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

11 more citing papers are in PubMed but not listed here.

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

10 authors at 6 institutions in 1 country.

Benjamin D RossDepartment of Microbiology, School of Medicine, University of Washington, Seattle, WA, 98195, USA. bdross@uw.edu.
Beth HayesDepartment of Biochemistry and Biophysics, University of California, San Francisco, CA, USA.
Matthew C RadeyDepartment of Microbiology, School of Medicine, University of Washington, Seattle, WA, 98195, USA.
Xia LeeDepartment of Entomology, University of Wisconsin, Madison, WI, 53706, USA.
Tanya JosekDepartment of Entomology, University of Illinois Urbana-Champaign, Urbana, IL, 61801, USA.
Jenna BjorkVectorborne Diseases Unit, Minnesota Department of Health, St. Paul, MN, 55164, USA.
David NeitzelVectorborne Diseases Unit, Minnesota Department of Health, St. Paul, MN, 55164, USA.
Susan PaskewitzDepartment of Entomology, University of Wisconsin, Madison, WI, 53706, USA.
Seemay ChouDepartment of Biochemistry and Biophysics, University of California, San Francisco, CA, USA. seemay.chou@ucsf.edu.
Joseph D MougousDepartment of Microbiology, School of Medicine, University of Washington, Seattle, WA, 98195, USA. mougous@u.washington.edu.
Minnesota Department of Health · USUniversity of California, San Francisco · USUniversity of Washington · USUniversity of Wisconsin–Madison · USHoward Hughes Medical Institute · USUniversity of Illinois Urbana-Champaign · US

Funding

Leica SP8 WWL Confocal MicroscopeS10OD016240 · OD · UNIVERSITY OF WASHINGTON · PI CATTERALL, WILLIAM A · 2014 to 2014
$581k
Elucidating the function of a novel antibacterial amidase in Ixodes scapularisR21AI114923 · NIAID · UNIVERSITY OF WASHINGTON · PI MOUGOUS, JOSEPH DAVID · 2015 to 2016
$439k
Howard Hughes Medical InstituteNIAID NIH HHS R21 AI114923NIH HHS S10 OD016240
6 · The paper itself

Abstract

Hard ticks of the order Ixodidae serve as vectors for numerous human pathogens, including the causative agent of Lyme Disease Borrelia burgdorferi. Tick-associated microbes can influence pathogen colonization, offering the potential to inhibit disease transmission through engineering of the tick microbiota. Here, we investigate whether B. burgdorferi encounters abundant bacteria within the midgut of wild adult Ixodes scapularis, its primary vector. Through the use of controlled sequencing methods and confocal microscopy, we find that the majority of field-collected adult I. scapularis harbor limited internal microbial communities that are dominated by endosymbionts. A minority of I. scapularis ticks harbor abundant midgut bacteria and lack B. burgdorferi. We find that the lack of a stable resident midgut microbiota is not restricted to I. scapularis since extension of our studies to I. pacificus, Amblyomma maculatum, and Dermacentor spp showed similar patterns. Finally, bioinformatic examination of the B. burgdorferi genome revealed the absence of genes encoding known interbacterial interaction pathways, a feature unique to the Borrelia genus within the phylum Spirochaetes. Our results suggest that reduced selective pressure from limited microbial populations within ticks may have facilitated the evolutionary loss of genes encoding interbacterial competition pathways from Borrelia.

Indexed as

Gastrointestinal MicrobiomeAnimalsBorreliaDermacentorIxodesIxodidae

Identifiers

PMID29946195
PMCPMC6194123
OpenAlexW2951941004

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.