The Core Gut Microbiome of Black Soldier Fly (Hermetia illucens ) Larvae Raised on Low-Bioburden Diets

Frontiers in Microbiology
Thomas KlammsteinerHeribert Insam

Abstract

An organism's gut microbiome handles most of the metabolic processes associated with food intake and digestion but can also strongly affect health and behavior. A stable microbial core community in the gut provides general metabolic competences for substrate degradation and is robust against extrinsic disturbances like changing diets or pathogens. Black Soldier Fly larvae (BSFL; Hermetia illucens) are well known for their ability to efficiently degrade a wide spectrum of organic materials. The ingested substrates build up the high fat and protein content in their bodies that make the larvae interesting for the animal feedstuff industry. In this study, we subjected BSFL to three distinct types of diets carrying a low bioburden and assessed the diets' impact on larval development and on the composition of the bacterial and archaeal gut community. No significant impact on the gut microbiome across treatments pointed us to the presence of a predominant core community backed by a diverse spectrum of low-abundance taxa. Actinomyces spp., Dysgonomonas spp., and Enterococcus spp. as main members of this community provide various functional and metabolic skills that could be crucial for the thriving of BSFL in various environments. This...Continue Reading

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Citations

Dec 18, 2020·Frontiers in Microbiology·Moritz GoldAlexander Mathys
Dec 4, 2020·Anaerobe·Charles M Bridges, Daniel J Gage
Mar 6, 2021·Frontiers in Microbiology·Fengchun YangHeather R Jordan
Oct 24, 2021·Journal of the Science of Food and Agriculture·Tatiana A KuznetsovaNina A Ushakova

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Methods Mentioned

BETA
amplicon sequencing
PCR

Software Mentioned

mothur
Nextera
HOMOVA
PAST
SINA
AMOVA
vegan
SILVA
NMDS
R

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