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  Role of the gut microbiome in mediating standard metabolic rate after dietary shifts in the viviparous cockroach, Diploptera punctata

Ayayee, P. A., Kinney, G., Yarnes, C., Larsen, T., Custer, G. F., van Diepen, L. T. A., et al. (2020). Role of the gut microbiome in mediating standard metabolic rate after dietary shifts in the viviparous cockroach, Diploptera punctata. Journal of Experimental Biology, 223: jeb218271. doi:10.1242/jeb.218271.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0006-9937-0 Version Permalink: http://hdl.handle.net/21.11116/0000-0006-9938-F
Genre: Journal Article

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 Creators:
Ayayee, Paul A., Author
Kinney, Georg, Author
Yarnes, Chris, Author
Larsen, Thomas1, Author              
Custer, Gordon F., Author
van Diepen, Linda T. A., Author
Muñoz-Garcia, Agustí, Author
Affiliations:
1Archaeology, Max Planck Institute for the Science of Human History, Max Planck Society, ou_2074312              

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Free keywords: Diploptera punctata, Gut microbiome, Metabolic phenotype, Nutrient provisioning, Standard metabolic rate
 Abstract: Diet may be a significant determinant of insect gut microbiome composition. However, the extent to which dietary shifts shape both the composition and relevant functions of insect gut microbiomes, and ultimately impact host energy balance (i.e. metabolic phenotype), is not well understood. We investigated the impacts of diet switching on Diploptera punctata females maintained on a dog food (DF) diet relative to those fed a comparatively sub-optimal cellulose-amended dog food (CADF) diet for 4 weeks. After this period, dietary shift resulted in a significantly higher average mass-specific standard metabolic rate (SMR) in CADF-fed females compared with DF-fed females. We also uncovered significant 13C-enrichment in DF-fed insect samples relative to CADF-fed insect samples and lowered bacterial essential amino acid (EAA) provisioning in CADF-fed samples. Differences in SMR and EAA provisioning were not accompanied by significant differences in overall microbiome composition between the two groups. However, cellulolytic and nitrogen-fixing bacterial families dominant in wild omnivorous cockroaches and wood-feeding termites were significantly enriched in CADF-fed females than in DF-fed females, at the end of the study. We propose that these changes in microbiome composition after dietary shifts are associated with changes in EAA provisioning and possibly SMR. Further studies are needed to comprehensively understand the relative importance of gut microbial functions among the complexity of factors known to underscore SMR responses in insects under varying dietary conditions. © 2020. Published by The Company of Biologists Ltd.

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Language(s): eng - English
 Dates: 2020-06-11
 Publication Status: Published online
 Pages: 9
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1242/jeb.218271
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Title: Journal of Experimental Biology
Source Genre: Journal
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Publ. Info: London : Published for the Company of Biologists Ltd. by the Cambridge University Press
Pages: - Volume / Issue: 223 Sequence Number: jeb218271 Start / End Page: - Identifier: ISSN: 0022-0949
CoNE: https://pure.mpg.de/cone/journals/resource/110992357319088