The diverse and extensive plant polysaccharide degradative apparatuses of the rumen and hindgut Prevotella species: A factor in their ubiquity?
Autor: | Tomaž Accetto, Gorazd Avguštin |
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Rok vydání: | 2019 |
Předmět: |
Rumen
animal structures Swine Range (biology) Prevotella Zoology Generalist and specialist species Polysaccharide Applied Microbiology and Biotechnology Microbiology 03 medical and health sciences stomatognathic system Polysaccharides Abundance (ecology) Animals Phylogeny Ecology Evolution Behavior and Systematics 030304 developmental biology chemistry.chemical_classification 0303 health sciences Sheep biology 030306 microbiology food and beverages Hindgut Sequence Analysis DNA Plants biology.organism_classification stomatognathic diseases chemistry Metagenomics Carbohydrate Metabolism Metagenome Cattle |
Zdroj: | Systematic and Applied Microbiology. 42:107-116 |
ISSN: | 0723-2020 |
Popis: | Although the Prevotella are commonly observed in high shares in the mammalian hindgut and rumen studies using NGS approach, the knowledge on their actual role, though postulated to lie in soluble fibre degradation, is scarce. Here we analyse in total 23, more than threefold of hitherto known rumen and hindgut Prevotella species and show that rumen/hindgut Prevotella generally possess extensive repertoires of polysaccharide utilization loci (PULs) and carbohydrate active enzymes targeting various plant polysaccharides. These PUL repertoires separate analysed Prevotella into generalists and specialists yet a finer diversity among generalists is evident too, both in range of substrates targeted and in PUL combinations targeting the same broad substrate classes. Upon evaluation of the shares of species analysed in this study in rumen metagenomes we found firstly, that they contributed significantly to total Prevotella abundance though much of rumen Prevotella diversity may still be unknown. Secondly, the hindgut Prevotella species originally isolated in pigs and humans occasionally dominated among the Prevotella with surprisingly high metagenome read shares and were consistently found in rumen metagenome samples from sites as apart as New Zealand and Scotland. This may indicate frequent passage between different hosts and relatively low barriers to their successful establishment in rumen versus the hindgut. |
Databáze: | OpenAIRE |
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