The impact of nutrients on gut microbial communities and host life-history of an insect

Soon Hwee Ng

Research output: ThesisDoctoral Thesis

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Abstract

This thesis looks at the effects of macronutrients and micronutrients on different life history traits in the Australian field cricket, Teleogryllus oceanicus. It shows that different macronutrients are not simply calories to be allocated to different traits, but directly determine the expression of different life history traits and mediate their trade-offs. Moreover, specific nutrients affect the relative abundances of different bacterial species in the cricket's gut and impact gut microbial diversity. As a result, the bacterial gene pool and its metabolic capabilities are altered by diet, with the potential to change the interaction between the gut microbiome and its host.
Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
  • The University of Western Australia
Thesis sponsors
Award date4 Jul 2019
DOIs
Publication statusUnpublished - 2019

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Gryllidae
intestinal microorganisms
microbial communities
digestive system
Teleogryllus oceanicus
life history
insects
nutrients
dietary minerals
diet
microbiome
gene pool

Cite this

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The impact of nutrients on gut microbial communities and host life-history of an insect. / Ng, Soon Hwee.

2019.

Research output: ThesisDoctoral Thesis

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AB - This thesis looks at the effects of macronutrients and micronutrients on different life history traits in the Australian field cricket, Teleogryllus oceanicus. It shows that different macronutrients are not simply calories to be allocated to different traits, but directly determine the expression of different life history traits and mediate their trade-offs. Moreover, specific nutrients affect the relative abundances of different bacterial species in the cricket's gut and impact gut microbial diversity. As a result, the bacterial gene pool and its metabolic capabilities are altered by diet, with the potential to change the interaction between the gut microbiome and its host.

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