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Wong ACN, Wang QP, Morimoto J, Senior AM, Lihoreau M, Neely GG, Simpson SJ, Ponton F. Gut Microbiota Modifies Olfactory-Guided Microbial Preferences and Foraging Decisions in Drosophila. Curr Biol 2017; 27:2397-2404.e4. [PMID: 28756953 DOI: 10.1016/j.cub.2017.07.022] [Citation(s) in RCA: 134] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 05/26/2017] [Accepted: 07/11/2017] [Indexed: 01/08/2023]
Abstract
The gut microbiota affects a wide spectrum of host physiological traits, including development [1-5], germline [6], immunity [7-9], nutrition [4, 10, 11], and longevity [12, 13]. Association with microbes also influences fitness-related behaviors such as mating [14] and social interactions [15, 16]. Although the gut microbiota is evidently important for host wellbeing, how hosts become associated with particular assemblages of microbes from the environment remains unclear. Here, we present evidence that the gut microbiota can modify microbial and nutritional preferences of Drosophila melanogaster. By experimentally manipulating the gut microbiota of flies subjected to behavioral and chemosensory assays, we found that fly-microbe attractions are shaped by the identity of the host microbiota. Conventional flies exhibit preference for their associated Lactobacillus, a behavior also present in axenic flies as adults and marginally as larvae. By contrast, fly preference for Acetobacter is primed by early-life exposure and can override the innate preference. These microbial preferences are largely olfactory guided and have profound impact on host foraging, as flies continuously trade off between acquiring beneficial microbes and balancing nutrients from food. Our study shows a role of animal microbiota in shaping host fitness-related behavior through their chemosensory responses, opening a research theme on the interrelationships between the microbiota, host sensory perception, and behavior.
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Affiliation(s)
- Adam Chun-Nin Wong
- Charles Perkins Centre and School of Life and Environmental Sciences, Johns Hopkins Drive, Camperdown, NSW 2006, Australia.
| | - Qiao-Ping Wang
- Charles Perkins Centre and School of Life and Environmental Sciences, Johns Hopkins Drive, Camperdown, NSW 2006, Australia
| | - Juliano Morimoto
- Charles Perkins Centre and School of Life and Environmental Sciences, Johns Hopkins Drive, Camperdown, NSW 2006, Australia; Programa de Pós-Graduação em Ecologia e Conservação, Federal University of Paraná, Caixa Postal 19031, CEP 81531-990 Curitiba, Brazil
| | - Alistair M Senior
- Charles Perkins Centre and School of Life and Environmental Sciences, Johns Hopkins Drive, Camperdown, NSW 2006, Australia; The University of Sydney, School of Mathematics and Statistics, Eastern Ave, Camperdown, NSW 2006, Australia
| | - Mathieu Lihoreau
- Charles Perkins Centre and School of Life and Environmental Sciences, Johns Hopkins Drive, Camperdown, NSW 2006, Australia; Research Center on Animal Cognition (CRCA), Center for Integrative Biology (CBI), University Paul Sabatier, CNRS, UPS, 118 Route de Narbonne, 31062 Toulouse, France
| | - G Gregory Neely
- Charles Perkins Centre and School of Life and Environmental Sciences, Johns Hopkins Drive, Camperdown, NSW 2006, Australia
| | - Stephen J Simpson
- Charles Perkins Centre and School of Life and Environmental Sciences, Johns Hopkins Drive, Camperdown, NSW 2006, Australia
| | - Fleur Ponton
- Charles Perkins Centre and School of Life and Environmental Sciences, Johns Hopkins Drive, Camperdown, NSW 2006, Australia; Department of Biological Sciences, 205A Culloden Road, Macquarie University, Sydney, NSW 2109, Australia
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