Brief Communication abstract
Nature Neuroscience 11, 871 - 873 (2008)
Published online: 27 July 2008 | doi:10.1038/nn.2170
Control of thermotactic behavior via coupling of a TRP channel to a phospholipase C signaling cascade
Young Kwon1, Hye-Seok Shim1,2, Xiaoyue Wang1,2 & Craig Montell1
In animals such as the fruitfly, even minor deviations in environmental temperature can have major impacts on development and lifespan. Here we demonstrated that the ability of Drosophila melanogaster larvae to discriminate between the optimal temperature of 18 °C and slightly higher temperatures (19–24 °C) depended on the TRPA1 channel, which functioned downstream of a phospholipase C–dependent signaling cascade similar to that used in fly phototransduction. We propose that activation of TRPA1 through a signaling cascade promotes amplification of small differences in temperature and facilitates adaptation to temperatures within the comfortable range.
- Departments of Biological Chemistry and Neuroscience, Center for Sensory Biology, 855 North Wolfe Street, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA.
- These authors contributed equally to this work.
Correspondence to: Craig Montell1 e-mail: cmontell@jhmi.edu
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