Evidence map›Paper›PMID 28348879›Full record

ArticleMicrobial genomics2017

Absence of genome reduction in diverse, facultative endohyphal bacteria.

David A Baltrus, Kevin Dougherty, Kayla R Arendt, Marcel Huntemann, Alicia Clum, Manoj Pillay, Krishnaveni Palaniappan, Neha Varghese, Natalia Mikhailova, Dimitrios Stamatis and 9 more

Abstract read
In one paragraph

Article in Microbial genomics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
–field-weighted citation impact
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

26 citing papers in PubMed.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Microorganisms · 2025
    Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. International journal of systematic and evolutionary microbiology · 2024
    Article
  11. Review
  12. Comparative genomics of a novelMicrobial genomics · 2024
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Review
  20. Article
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

19 authors.

David A Baltrus1​School of Plant Sciences, University of Arizona, Tucson, AZ 85721, USA.
Kevin Dougherty1​School of Plant Sciences, University of Arizona, Tucson, AZ 85721, USA.
Kayla R Arendt1​School of Plant Sciences, University of Arizona, Tucson, AZ 85721, USA.
Marcel Huntemann2​Joint Genome Institute, Walnut Creek, CA, USA.
Alicia Clum2​Joint Genome Institute, Walnut Creek, CA, USA.
Manoj Pillay2​Joint Genome Institute, Walnut Creek, CA, USA.
Krishnaveni Palaniappan2​Joint Genome Institute, Walnut Creek, CA, USA.
Neha Varghese2​Joint Genome Institute, Walnut Creek, CA, USA.
Natalia Mikhailova2​Joint Genome Institute, Walnut Creek, CA, USA.
Dimitrios Stamatis2​Joint Genome Institute, Walnut Creek, CA, USA.
T B K Reddy2​Joint Genome Institute, Walnut Creek, CA, USA.
Chew Yee Ngan2​Joint Genome Institute, Walnut Creek, CA, USA.
Chris Daum2​Joint Genome Institute, Walnut Creek, CA, USA.
Nicole Shapiro2​Joint Genome Institute, Walnut Creek, CA, USA.
Victor Markowitz2​Joint Genome Institute, Walnut Creek, CA, USA.
Natalia Ivanova2​Joint Genome Institute, Walnut Creek, CA, USA.
Nikos Kyrpides2​Joint Genome Institute, Walnut Creek, CA, USA.
Tanja Woyke2​Joint Genome Institute, Walnut Creek, CA, USA.
A Elizabeth Arnold1​School of Plant Sciences, University of Arizona, Tucson, AZ 85721, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Fungi interact closely with bacteria, both on the surfaces of the hyphae and within their living tissues (i.e. endohyphal bacteria, EHB). These EHB can be obligate or facultative symbionts and can mediate diverse phenotypic traits in their hosts. Although EHB have been observed in many lineages of fungi, it remains unclear how widespread and general these associations are, and whether there are unifying ecological and genomic features can be found across EHB strains as a whole. We cultured 11 bacterial strains after they emerged from the hyphae of diverse Ascomycota that were isolated as foliar endophytes of cupressaceous trees, and generated nearly complete genome sequences for all. Unlike the genomes of largely obligate EHB, the genomes of these facultative EHB resembled those of closely related strains isolated from environmental sources. Although all analysed genomes encoded structures that could be used to interact with eukaryotic hosts, pathways previously implicated in maintenance and establishment of EHB symbiosis were not universally present across all strains. Independent isolation of two nearly identical pairs of strains from different classes of fungi, coupled with recent experimental evidence, suggests horizontal transfer of EHB across endophytic hosts. Given the potential for EHB to influence fungal phenotypes, these genomes could shed light on the mechanisms of plant growth promotion or stress mitigation by fungal endophytes during the symbiotic phase, as well as degradation of plant material during the saprotrophic phase. As such, these findings contribute to the illumination of a new dimension of functional biodiversity in fungi.

Indexed as

Genome, BacterialSymbiosisAscomycotaBacteriaCupressaceaeGenetic VariationGene Transfer, HorizontalHost Microbial InteractionsHyphaePlant LeavesWhole Genome Sequencingendofungal bacteriaendohyphal bacteriaendosymbionthorizontal transmissionLuteibacter

Identifiers

PMID28348879
PMCPMC5361626

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Registered trials

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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.