Herbivorous turtle ants obtain essential nutrients from a conserved nitrogen-recycling gut microbiome.

Détails

Ressource 1Télécharger: s41467-018-03357-y.pdf (2617.37 [Ko])
Etat: Serval
Version: Final published version
ID Serval
serval:BIB_71C25548145E
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Herbivorous turtle ants obtain essential nutrients from a conserved nitrogen-recycling gut microbiome.
Périodique
Nature communications
Auteur(s)
Hu Y., Sanders J.G., Łukasik P., D'Amelio C.L., Millar J.S., Vann D.R., Lan Y., Newton J.A., Schotanus M., Kronauer DJC, Pierce N.E., Moreau C.S., Wertz J.T., Engel P., Russell J.A.
ISSN
2041-1723 (Electronic)
ISSN-L
2041-1723
Statut éditorial
Publié
Date de publication
06/03/2018
Peer-reviewed
Oui
Volume
9
Numéro
1
Pages
964
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
Publication Status: epublish
Résumé
Nitrogen acquisition is a major challenge for herbivorous animals, and the repeated origins of herbivory across the ants have raised expectations that nutritional symbionts have shaped their diversification. Direct evidence for N provisioning by internally housed symbionts is rare in animals; among the ants, it has been documented for just one lineage. In this study we dissect functional contributions by bacteria from a conserved, multi-partite gut symbiosis in herbivorous Cephalotes ants through in vivo experiments, metagenomics, and in vitro assays. Gut bacteria recycle urea, and likely uric acid, using recycled N to synthesize essential amino acids that are acquired by hosts in substantial quantities. Specialized core symbionts of 17 studied Cephalotes species encode the pathways directing these activities, and several recycle N in vitro. These findings point to a highly efficient N economy, and a nutritional mutualism preserved for millions of years through the derived behaviors and gut anatomy of Cephalotes ants.

Mots-clé
Amino Acids/metabolism, Ammonia/metabolism, Animals, Ants/microbiology, Ants/physiology, Diet, Gastrointestinal Microbiome/genetics, Geography, Herbivory/physiology, Metagenome, Metagenomics, Nitrogen/metabolism, Nitrogen Fixation/genetics, Nitrogen Isotopes, Symbiosis, Urea/metabolism, Urease/metabolism, Uric Acid/metabolism
Pubmed
Web of science
Open Access
Oui
Création de la notice
08/03/2018 21:55
Dernière modification de la notice
08/05/2019 20:20
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