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Nutritional Physiology: Sex Elicits a Taste for Salt in Drosophila

Stephen J Simpson1, David Raubenheimer2

  • 1Charles Perkins Centre, the University of Sydney, Sydney, New South Wales, Australia; School of Biological Sciences, the University of Sydney, Sydney, New South Wales, Australia.

Current Biology : CB
|October 21, 2015
PubMed

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The perception of a salty flavor is facilitated by sodium ions within the oral salivary fluid. Upon consumption of a salty substance, salt crystals disassemble, leading to the liberation of its constituents—Na+ and Cl- ions. These ions subsequently dissolve into the salivary fluid present in the oral cavity. The external environment of the gustatory cells experiences an elevation in Na+ concentration, thereby establishing a potent concentration gradient. This gradient propels the...
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