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Identification of a Candidate Starch Utilizing Strain of Prevotella albensis from Bovine Rumen
The inclusion of starch-rich feedstuffs, a common practice in intensive ruminant livestock production systems, can result in ruminal acidosis, a condition that can severely impact animal performance and health. One of the main causes of acidosis is the rapid accumulation of ruminal short chain fatty...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7765497/ https://www.ncbi.nlm.nih.gov/pubmed/33339094 http://dx.doi.org/10.3390/microorganisms8122005 |
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author | Bandarupalli, Venkata Vinay Kumar St-Pierre, Benoit |
author_facet | Bandarupalli, Venkata Vinay Kumar St-Pierre, Benoit |
author_sort | Bandarupalli, Venkata Vinay Kumar |
collection | PubMed |
description | The inclusion of starch-rich feedstuffs, a common practice in intensive ruminant livestock production systems, can result in ruminal acidosis, a condition that can severely impact animal performance and health. One of the main causes of acidosis is the rapid accumulation of ruminal short chain fatty acids (SCFAs) resulting from the microbial digestion of starch. A greater understanding of ruminal bacterial amylolytic activities is therefore critical to improving mitigation of acidosis. To this end, our manuscript reports the identification of a candidate starch utilizer (OTU SD_Bt-00010) using batch culturing of bovine rumen fluid supplemented with starch. Based on 16S rRNA gene sequencing and metagenomics analysis, SD_Bt-00010 is predicted to be a currently uncharacterized strain of Prevotella albensis. Annotation of de novo assembled contigs from metagenomic data not only identified sequences encoding for α-amylase enzymes, but also revealed the potential to metabolize xylan as an alternative substrate. Metagenomics also predicted that SCFA end products for SD_Bt-00010 would be acetate and formate, and further suggested that this candidate strain may be a lactate utilizer. Together, these results indicate that SD_Bt-00010 is an amylolytic symbiont with beneficial attributes for its ruminant host. |
format | Online Article Text |
id | pubmed-7765497 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-77654972020-12-27 Identification of a Candidate Starch Utilizing Strain of Prevotella albensis from Bovine Rumen Bandarupalli, Venkata Vinay Kumar St-Pierre, Benoit Microorganisms Article The inclusion of starch-rich feedstuffs, a common practice in intensive ruminant livestock production systems, can result in ruminal acidosis, a condition that can severely impact animal performance and health. One of the main causes of acidosis is the rapid accumulation of ruminal short chain fatty acids (SCFAs) resulting from the microbial digestion of starch. A greater understanding of ruminal bacterial amylolytic activities is therefore critical to improving mitigation of acidosis. To this end, our manuscript reports the identification of a candidate starch utilizer (OTU SD_Bt-00010) using batch culturing of bovine rumen fluid supplemented with starch. Based on 16S rRNA gene sequencing and metagenomics analysis, SD_Bt-00010 is predicted to be a currently uncharacterized strain of Prevotella albensis. Annotation of de novo assembled contigs from metagenomic data not only identified sequences encoding for α-amylase enzymes, but also revealed the potential to metabolize xylan as an alternative substrate. Metagenomics also predicted that SCFA end products for SD_Bt-00010 would be acetate and formate, and further suggested that this candidate strain may be a lactate utilizer. Together, these results indicate that SD_Bt-00010 is an amylolytic symbiont with beneficial attributes for its ruminant host. MDPI 2020-12-16 /pmc/articles/PMC7765497/ /pubmed/33339094 http://dx.doi.org/10.3390/microorganisms8122005 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Bandarupalli, Venkata Vinay Kumar St-Pierre, Benoit Identification of a Candidate Starch Utilizing Strain of Prevotella albensis from Bovine Rumen |
title | Identification of a Candidate Starch Utilizing Strain of Prevotella albensis from Bovine Rumen |
title_full | Identification of a Candidate Starch Utilizing Strain of Prevotella albensis from Bovine Rumen |
title_fullStr | Identification of a Candidate Starch Utilizing Strain of Prevotella albensis from Bovine Rumen |
title_full_unstemmed | Identification of a Candidate Starch Utilizing Strain of Prevotella albensis from Bovine Rumen |
title_short | Identification of a Candidate Starch Utilizing Strain of Prevotella albensis from Bovine Rumen |
title_sort | identification of a candidate starch utilizing strain of prevotella albensis from bovine rumen |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7765497/ https://www.ncbi.nlm.nih.gov/pubmed/33339094 http://dx.doi.org/10.3390/microorganisms8122005 |
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