Diversity of Fecal Indicator Enterococci among Different Hosts: Importance to Water Contamination Source Tracking

<i>Enterococcus</i> spp. are common bacteria present in the intestinal tracts of animals and are used as fecal indicators in aquatic environments. On the other hand, enterococci are also known as opportunistic pathogens. Elucidating their composition in the intestinal tracts of domestic...

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Main Authors: Soichiro Tamai, Yoshihiro Suzuki
Format: Article
Language:English
Published: MDPI AG 2023-12-01
Series:Microorganisms
Subjects:
Online Access:https://www.mdpi.com/2076-2607/11/12/2981
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author Soichiro Tamai
Yoshihiro Suzuki
author_facet Soichiro Tamai
Yoshihiro Suzuki
author_sort Soichiro Tamai
collection DOAJ
description <i>Enterococcus</i> spp. are common bacteria present in the intestinal tracts of animals and are used as fecal indicators in aquatic environments. On the other hand, enterococci are also known as opportunistic pathogens. Elucidating their composition in the intestinal tracts of domestic animals can assist in estimating the sources of fecal contamination in aquatic environments. However, information on the species and composition of enterococci in animal hosts (except humans) is still lacking. In this study, enterococci were isolated from the feces of cattle, pigs, birds, and humans using selective media. Enterococcal species were identified using mass spectrometry technology, and each host was characterized by diversity and cluster analysis. The most dominant species were <i>E. hirae</i> in cattle, <i>E. faecium</i> in birds, and <i>E. faecalis</i> in pigs and humans. Cattle had the highest alpha diversity, with high interindividual and livestock farm diversity. The dominant enterococcal species in pigs and humans were identical, and cluster analysis showed that the majority of the two hosts’ species clustered together.
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spelling doaj.art-1addbf543c364846a83bd3a31b207c4e2023-12-22T14:26:17ZengMDPI AGMicroorganisms2076-26072023-12-011112298110.3390/microorganisms11122981Diversity of Fecal Indicator Enterococci among Different Hosts: Importance to Water Contamination Source TrackingSoichiro Tamai0Yoshihiro Suzuki1Department of Civil and Environmental Engineering, Faculty of Engineering, University of Miyazaki, Miyazaki 889-2192, JapanDepartment of Civil and Environmental Engineering, Faculty of Engineering, University of Miyazaki, Miyazaki 889-2192, Japan<i>Enterococcus</i> spp. are common bacteria present in the intestinal tracts of animals and are used as fecal indicators in aquatic environments. On the other hand, enterococci are also known as opportunistic pathogens. Elucidating their composition in the intestinal tracts of domestic animals can assist in estimating the sources of fecal contamination in aquatic environments. However, information on the species and composition of enterococci in animal hosts (except humans) is still lacking. In this study, enterococci were isolated from the feces of cattle, pigs, birds, and humans using selective media. Enterococcal species were identified using mass spectrometry technology, and each host was characterized by diversity and cluster analysis. The most dominant species were <i>E. hirae</i> in cattle, <i>E. faecium</i> in birds, and <i>E. faecalis</i> in pigs and humans. Cattle had the highest alpha diversity, with high interindividual and livestock farm diversity. The dominant enterococcal species in pigs and humans were identical, and cluster analysis showed that the majority of the two hosts’ species clustered together.https://www.mdpi.com/2076-2607/11/12/2981<i>Enterococcus</i>bacterial diversityhost-specific bacteriafecal source trackingwater quality
spellingShingle Soichiro Tamai
Yoshihiro Suzuki
Diversity of Fecal Indicator Enterococci among Different Hosts: Importance to Water Contamination Source Tracking
Microorganisms
<i>Enterococcus</i>
bacterial diversity
host-specific bacteria
fecal source tracking
water quality
title Diversity of Fecal Indicator Enterococci among Different Hosts: Importance to Water Contamination Source Tracking
title_full Diversity of Fecal Indicator Enterococci among Different Hosts: Importance to Water Contamination Source Tracking
title_fullStr Diversity of Fecal Indicator Enterococci among Different Hosts: Importance to Water Contamination Source Tracking
title_full_unstemmed Diversity of Fecal Indicator Enterococci among Different Hosts: Importance to Water Contamination Source Tracking
title_short Diversity of Fecal Indicator Enterococci among Different Hosts: Importance to Water Contamination Source Tracking
title_sort diversity of fecal indicator enterococci among different hosts importance to water contamination source tracking
topic <i>Enterococcus</i>
bacterial diversity
host-specific bacteria
fecal source tracking
water quality
url https://www.mdpi.com/2076-2607/11/12/2981
work_keys_str_mv AT soichirotamai diversityoffecalindicatorenterococciamongdifferenthostsimportancetowatercontaminationsourcetracking
AT yoshihirosuzuki diversityoffecalindicatorenterococciamongdifferenthostsimportancetowatercontaminationsourcetracking