Evidence map›Paper›PMID 32066956›Full record

ArticleNature biotechnology2020

Engineering bacterial symbionts of nematodes improves their biocontrol potential to counter the western corn rootworm.

Ricardo A R Machado, Lisa Thönen, Carla C M Arce, Vanitha Theepan, Fausto Prada, Daniel Wüthrich, Christelle A M Robert, Evangelia Vogiatzaki, Yi-Ming Shi, Olivier P Schaeren and 5 more

Erratum issuedAbstract read
PubMed Publisher
In one paragraph

Article in Nature biotechnology, 2020. 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 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
5.3field-weighted citation impact, top 4% 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, 50 citations in OpenAlex.

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  11. Bacterial tolerance to host-exuded specialized metabolites structures the maize root microbiome.Proceedings of the National Academy of Sciences of the United States of America · 2023
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

15 authors at 2 institutions in 3 countries.

Ricardo A R MachadoInstitute of Plant Sciences, University of Bern, Bern, Switzerland. ricardo.machado@ips.unibe.ch.ORCID http://orcid.org/0000-0002-7624-1105
Lisa ThönenInstitute of Plant Sciences, University of Bern, Bern, Switzerland.ORCID http://orcid.org/0000-0002-0988-2690
Carla C M ArceInstitute of Plant Sciences, University of Bern, Bern, Switzerland.
Vanitha TheepanInstitute of Plant Sciences, University of Bern, Bern, Switzerland.
Fausto PradaInstitute of Plant Sciences, University of Bern, Bern, Switzerland.
Daniel WüthrichInterfaculty Bioinformatics Unit, University of Bern, Bern, Switzerland.
Christelle A M RobertInstitute of Plant Sciences, University of Bern, Bern, Switzerland.ORCID http://orcid.org/0000-0003-3415-2371
Evangelia VogiatzakiInstitute of Plant Sciences, University of Bern, Bern, Switzerland.
Yi-Ming ShiMolekulare Biotechnologie, Fachbereich Biowissenschaften, Goethe-Universität Frankfurt am Main, Frankfurt, Germany.ORCID http://orcid.org/0000-0001-6933-4971
Olivier P SchaerenInstitute for Infectious Diseases, University of Bern, Bern, Switzerland.
Matheus NotterInstitute for Infectious Diseases, University of Bern, Bern, Switzerland.
Rémy BruggmannInterfaculty Bioinformatics Unit, University of Bern, Bern, Switzerland.
Siegfried HapfelmeierInstitute for Infectious Diseases, University of Bern, Bern, Switzerland.
Helge B BodeMolekulare Biotechnologie, Fachbereich Biowissenschaften, Goethe-Universität Frankfurt am Main, Frankfurt, Germany.ORCID http://orcid.org/0000-0001-6048-5909
Matthias ErbInstitute of Plant Sciences, University of Bern, Bern, Switzerland.ORCID http://orcid.org/0000-0002-4446-9834
University of Bern · CHGoethe University Frankfurt · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The western corn rootworm (WCR) decimates maize crops worldwide. One potential way to control this pest is treatment with entomopathogenic nematodes (EPNs) that harbor bacterial symbionts that are pathogenic to insects. However, WCR larvae sequester benzoxazinoid secondary metabolites that are produced by maize and use them to increase their resistance to the nematodes and their symbionts. Here we report that experimental evolution and selection for bacterial symbionts that are resistant to benzoxazinoids improve the ability of a nematode-symbiont pair to kill WCR larvae. We isolated five Photorhabdus symbionts from different nematodes and increased their benzoxazinoid resistance through experimental evolution. Benzoxazinoid resistance evolved through multiple mechanisms, including a mutation in the aquaporin-like channel gene aqpZ. We reintroduced benzoxazinoid-resistant Photorhabdus strains into their original EPN hosts and identified one nematode-symbiont pair that was able to kill benzoxazinoid-sequestering WCR larvae more efficiently. Our results suggest that modification of bacterial symbionts might provide a generalizable strategy to improve biocontrol of agricultural pests.

Indexed as

Drug Resistance, BacterialAnimalsAquaporinsBacterial ProteinsBenzoxazinesEvolution, MolecularGenetic EngineeringMutationNematodaPest Control, BiologicalPhotorhabdusPlant DiseasesZea maysAquaporinsBacterial ProteinsBenzoxazines

Identifiers

PMID32066956
OpenAlexW3005858696

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.