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

Abstract：

: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.

journal_name

Nat Commun

journal_title

Nature communications

authors

Hu Y,Sanders JG,Łukasik P,D'Amelio CL,Millar JS,Vann DR,Lan Y,Newton JA,Schotanus M,Kronauer DJC,Pierce NE,Moreau CS,Wertz JT,Engel P,Russell JA

doi

10.1038/s41467-018-03357-y

subject

Has Abstract

pub_date

2018-03-06 00:00:00

pages

964

issue

1

issn

2041-1723

pii

10.1038/s41467-018-03357-y

journal_volume

9

pub_type

杂志文章

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