2023 journal article

Wood fibers are a crucial microhabitat for cellulose- and xylan- degrading bacteria in the hindgut of the wood-feeding beetle Odontotaenius disjunctus

FRONTIERS IN MICROBIOLOGY, 14.

author keywords: beetles; Passalidae; lignocellulose; symbiotic digestion; gut microbiomes
TL;DR: This study investigated the bacterial communities specifically associated with wood fibers in the gut of the passalid beetle Odontotaenius disjunctus and demonstrated that the anterior hindgut, which houses a majority of the bacterial load, is an important site for lignocellulose digestion. (via Semantic Scholar)
Source: Web Of Science
Added: July 24, 2023

IntroductionWood digestion in insects relies on the maintenance of a mosaic of numerous microhabitats, each colonized by distinct microbiomes. Understanding the division of digestive labor between these microhabitats- is central to understanding the physiology and evolution of symbiotic wood digestion. A microhabitat that has emerged to be of direct relevance to the process of lignocellulose digestion is the surface of ingested plant material. Wood particles in the guts of some termites are colonized by a specialized bacterial fiber-digesting microbiome, but whether this represents a widespread strategy among insect lineages that have independently evolved wood-feeding remains an open question.