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. 2021 Dec 1;7(49):eabj0186. doi: 10.1126/sciadv.abj0186

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Copyright © 2021 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).

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Fig. 1. — (A) Schematic of imaging preparation to monitor calcium oscillations (left) with GCaMP6f signal from R70H05-GAL4 expression in the dFB (right). (B) Calcium traces from R70H05-GAL4 > UAS-GCamP6f flies after different periods of starvation or expressing RNAi against Glut1 or HexC. (C) Amplitudes of dFB oscillations. (D) Power spectra of dFB oscillations. (E) Frequencies of dFB oscillations. (F) Model: In sated flies, d-glucose enters the dFB neurons through Glut1 and triggers oscillations through the activity of HexC; in starved flies, the low availability of d-glucose prevents oscillations. Values represent mean ± SEM. n = 19 to 27. Statistical tests: one-way analysis of variance (ANOVA) and Tukey post hoc; different letters represent significant differences P < 0.05.