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 small blue creatures called Nergals. Some have hearts above their heads, which signify friendship. There is one Nergal who is sneezing and losing health, which is denoted by minus one signs floating around it.
June 2025, Issue 1

Nergal Networks: Where Friendship Meets Infection

A citizen science game explores how social choices and networks can influence how an illness moves through a population.

View this Issue
An illustration of green lentiviral particles.

Maximizing Lentivirus Recovery

cytiva logo
Unraveling Complex Biology with Advanced Multiomics Technology

Unraveling Complex Biology with Five-Dimensional Multiomics

Element Bioscience Logo
Resurrecting Plant Defense Mechanisms to Avoid Crop Pathogens

Resurrecting Plant Defense Mechanisms to Avoid Crop Pathogens

Twist Bio 
The Scientist Placeholder Image

Seeing and Sorting with Confidence

BD

Products

The Scientist Placeholder Image

Agilent Unveils the Next Generation in LC-Mass Detection: The InfinityLab Pro iQ Series

agilent-logo

Agilent Announces the Enhanced 8850 Gas Chromatograph

parse-biosciences-logo

Pioneering Cancer Plasticity Atlas will help Predict Response to Cancer Therapies