Dietary Fructose and Microbiota-Derived Short-Chain Fatty Acids Promote Bacteriophage Production in the Gut Symbiont Lactobacillus reuteri

？ Lactobacillus reuteri produces phage during gastrointestinal transit ？ Dietary fructose and SCFAs promote L. reuteri phage production ？ Fructose metabolism and SCFA exposure activate the Ack pathway ？ The Ack pathway promotes phage production in a RecA-dependent manne