The Sound of Salt

A putative ion channel integral to mammalian hearing turns out to be an elusive salt-sensing chemoreceptor in nematode worms.

Written bySabrina Richards
| 3 min read

Register for free to listen to this article
Listen with Speechify
0:00
3:00
Share

C. elegans with tmc-1-expressing chemosensory neurons labeled with a fluorescent protein.William Schafer

The nematode version of a gene central to mammalian hearing turns out to encode a salt sensor, according to new research published today (January 30) in Nature. The study is the first to describe the function of nematode TMC-1, a protein that appears to aid in sensing (and avoiding) high concentrations of salt when expressed in specialized neurons, and may help elucidate the mechanics of mammalian hearing.

The new work on TMC-1 “is a really important paper for the hearing field as well,” said neurobiologist Jeffrey Holt at Harvard University Medical School, who was not involved in the research. The new data suggest that TMC-1 acts as an ion channel and that it may work similarly in the mammalian auditory system, Holt added.

Previous work ...

Interested in reading more?

Become a Member of

The Scientist Logo
Receive full access to more than 35 years of archives, as well as TS Digest, digital editions of The Scientist, feature stories, and much more!
Already a member? Login Here
Image of a woman with her hands across her stomach. She has a look of discomfort on her face. There is a blown up image of her stomach next to her and it has colorful butterflies and gut bacteria all swarming within the gut.
November 2025, Issue 1

Why Do We Feel Butterflies in the Stomach?

These fluttering sensations are the brain’s reaction to certain emotions, which can be amplified or soothed by the gut’s own “bugs".

View this Issue
Olga Anczukow and Ryan Englander discuss how transcriptome splicing affects immune system function in lung cancer.

Long-Read RNA Sequencing Reveals a Regulatory Role for Splicing in Immunotherapy Responses

Pacific Biosciences logo
Research Roundtable: The Evolving World of Spatial Biology

Research Roundtable: The Evolving World of Spatial Biology

Conceptual cartoon image of gene editing technology

Exploring the State of the Art in Gene Editing Techniques

Bio-Rad
Conceptual image of a doctor holding a brain puzzle, representing Alzheimer's disease diagnosis.

Simplifying Early Alzheimer’s Disease Diagnosis with Blood Testing

fujirebio logo

Products

Eppendorf Logo

Research on rewiring neural circuit in fruit flies wins 2025 Eppendorf & Science Prize

Evident Logo

EVIDENT's New FLUOVIEW FV5000 Redefines the Boundaries of Confocal and Multiphoton Imaging

Evident Logo

EVIDENT Launches Sixth Annual Image of the Year Contest

10x Genomics Logo

10x Genomics Launches the Next Generation of Chromium Flex to Empower Scientists to Massively Scale Single Cell Research