Gut Microbiota Modifies Olfactory-Guided Microbial Preferences and Foraging Decisions in Drosophila (Current Biology)

Wong et al. find a role of the gut microbiota in fly foraging, showing that fly preferences for foods with beneficial bacteria are shaped by the gut microbiota composition and history of host-microbe association. These bacteria also affect fly nutrient preferences, and flies trade off acquiring microbes against balancing nutrition in foraging.