Evidence map›Paper›PMID 38935621›Full record

ArticlePLoS biology2024

A high-throughput behavioral screening platform for measuring chemotaxis by C. elegans.

Emily Fryer, Sujay Guha, Lucero E Rogel-Hernandez, Theresa Logan-Garbisch, Hodan Farah, Ehsan Rezaei, Iris N Mollhoff, Adam L Nekimken, Angela Xu, Lara Selin Seyahi and 5 more

Abstract read
In one paragraph

Article in PLoS biology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing 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

23 citing papers in PubMed.

  1. Review
  2. TAXISCAN, Optimizing throughput and behavioral depth in standardbioRxiv : the preprint server for biology · 2026
    Article
  3. Article
  4. Article
  5. Review
  6. Nematicidal indole oxazoles and chemoattractants from soil bacteria.bioRxiv : the preprint server for biology · 2026
    Article
  7. Bay leaf extract is a chemotaxis repellent formicroPublication biology · 2026
    Article
  8. Tobacco extract is a chemotaxis repellent formicroPublication biology · 2026
    Article
  9. Article
  10. The anticonvulsant and mood-stabilizing drug valproic acid attractsbioRxiv : the preprint server for biology · 2025
    Article
  11. Article
  12. Automated Platforms inMicromachines · 2025
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. A simple yet reliable assay for chemotaxis inmicroPublication biology · 2025
    Article
  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

15 authors.

Emily FryerDepartment of Molecular and Cellular Physiology, Stanford University, Stanford, California, United States of America.
Sujay GuhaDepartment of Molecular and Cellular Physiology, Stanford University, Stanford, California, United States of America.
Lucero E Rogel-HernandezDepartment of Molecular and Cellular Physiology, Stanford University, Stanford, California, United States of America.
Theresa Logan-GarbischDepartment of Molecular and Cellular Physiology, Stanford University, Stanford, California, United States of America.
Hodan FarahDepartment of Molecular and Cellular Physiology, Stanford University, Stanford, California, United States of America.
Ehsan RezaeiDepartment of Molecular and Cellular Physiology, Stanford University, Stanford, California, United States of America.
Iris N MollhoffDepartment of Biology, Stanford University, Stanford, California, United States of America.
Adam L NekimkenDepartment of Molecular and Cellular Physiology, Stanford University, Stanford, California, United States of America.
Angela XuDepartment of Plant Biology, Carnegie Institution for Science, Stanford, California, United States of America.
Lara Selin SeyahiDepartment of Molecular and Cellular Physiology, Stanford University, Stanford, California, United States of America.
Sylvia FechnerDepartment of Molecular and Cellular Physiology, Stanford University, Stanford, California, United States of America.
Shaul DruckmannDepartment of Neurobiology, Stanford University, Stanford, California, United States of America.
Thomas R ClandininDepartment of Neurobiology, Stanford University, Stanford, California, United States of America.
Seung Y RheeDepartment of Plant Biology, Carnegie Institution for Science, Stanford, California, United States of America.
Miriam B GoodmanDepartment of Molecular and Cellular Physiology, Stanford University, Stanford, California, United States of America.ORCID 0000-0002-5810-1272

Funding

The biophysics of skin-neuron sensory tactile organs and their sensitivity to mechanical and chemical stressR35NS105092 · NINDS · STANFORD UNIVERSITY · PI GOODMAN, MIRIAM B · 2018 to 2025
$6.4M
Molecular Pharmacology Training GrantT32GM113854 · NIGMS · STANFORD UNIVERSITY · PI MOCHLY-ROSEN, DARIA · 2015 to 2019
$1.1M
Internal Tissue Mechanics and the Sense of Touch in C. elegansF31NS100318 · NINDS · STANFORD UNIVERSITY · PI NEKIMKEN, ADAM · 2017 to 2019
$106k
NIH HHS F31NS100318NIH HHS R35NS105092NIH HHS T32GM113854
6 · The paper itself

Abstract

Throughout history, humans have relied on plants as a source of medication, flavoring, and food. Plants synthesize large chemical libraries and release many of these compounds into the rhizosphere and atmosphere where they affect animal and microbe behavior. To survive, nematodes must have evolved the sensory capacity to distinguish plant-made small molecules (SMs) that are harmful and must be avoided from those that are beneficial and should be sought. This ability to classify chemical cues as a function of their value is fundamental to olfaction and represents a capacity shared by many animals, including humans. Here, we present an efficient platform based on multiwell plates, liquid handling instrumentation, inexpensive optical scanners, and bespoke software that can efficiently determine the valence (attraction or repulsion) of single SMs in the model nematode, Caenorhabditis elegans. Using this integrated hardware-wetware-software platform, we screened 90 plant SMs and identified 37 that attracted or repelled wild-type animals but had no effect on mutants defective in chemosensory transduction. Genetic dissection indicates that for at least 10 of these SMs, response valence emerges from the integration of opposing signals, arguing that olfactory valence is often determined by integrating chemosensory signals over multiple lines of information. This study establishes that C. elegans is an effective discovery engine for determining chemotaxis valence and for identifying natural products detected by the chemosensory nervous system.

Indexed as

Caenorhabditis elegansChemotaxisHigh-Throughput Screening AssaysAnimalsBehavior, AnimalSmellSoftware

Identifiers

PMID38935621
PMCPMC11210793

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.