Lactobacillus plantarum favors the early emergence of fit and fertile adult Drosophila upon chronic undernutrition.
| Autor: | Téfit MA; Institut de Génomique Fonctionnelle de Lyon, Université de Lyon, Ecole Normale Supérieure de Lyon, Centre National de la Recherche Scientifique, Université Claude Bernard Lyon 1, Unité Mixte de Recherche 5242, Lyon, Cedex 07 69364, France., Leulier F; Institut de Génomique Fonctionnelle de Lyon, Université de Lyon, Ecole Normale Supérieure de Lyon, Centre National de la Recherche Scientifique, Université Claude Bernard Lyon 1, Unité Mixte de Recherche 5242, Lyon, Cedex 07 69364, France francois.leulier@ens-lyon.fr. |
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| Jazyk: | angličtina |
| Zdroj: | The Journal of experimental biology [J Exp Biol] 2017 Mar 01; Vol. 220 (Pt 5), pp. 900-907. Date of Electronic Publication: 2017 Jan 06. |
| DOI: | 10.1242/jeb.151522 |
| Abstrakt: | Animals are naturally surrounded by a variety of microorganisms with which they constantly interact. Among these microbes, some live in close association with a host and form its microbiota. These communities are being extensively studied, owing to their contributions to shaping various aspects of animal physiology. One of these commensal species, Lactobacillus plantarum , and in particular the L.p. WJL strain, has been shown to promote the growth of Drosophila larvae upon nutrient scarcity, allowing earlier metamorphosis and adult emergence compared with axenic individuals. As for many insects, conditions surrounding the post-embryonic development dictate key adult life history traits in Drosophila , and adjusting developmental timing according to the environment is essential for adult fitness. Thus, we wondered whether the growth acceleration induced by L.p. WJL in a context of poor nutrition could adversely impact the fitness of Drosophila adults. Here, we show that the L.p. WJL -mediated acceleration of growth is not deleterious; adults emerging after an accelerated development are as fit as their axenic siblings. Additionally, the presence of L.p. WJL even leads to a lifespan extension in nutritionally challenged males. These results demonstrate that L.p. WJL is a beneficial partner for Drosophila melanogaster through its entire life cycle. Thus, commensal bacteria allow the earlier emergence and longer survival of fit and fertile individuals and might represent one of the factors contributing to the ecological success of Drosophila . (© 2017. Published by The Company of Biologists Ltd.) |
| Databáze: | MEDLINE |
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