Closely related Salmonella Derby strains triggered distinct gut microbiota alteration

Abstract Background Salmonella Derby is one of the most predominant Salmonella serotypes that seriously threatens food safety. This bacterium can be further differentiated to sub-populations with different population sizes; however, whether and how the S. Derby–gut microbiota interactions affect epi...

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Main Authors: Xiaohui Yuan, Han Xue, Xiaomeng Xu, Xinan Jiao, Zhiming Pan, Yunzeng Zhang
Format: Article
Language:English
Published: BMC 2022-01-01
Series:Gut Pathogens
Subjects:
Online Access:https://doi.org/10.1186/s13099-022-00480-6
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author Xiaohui Yuan
Han Xue
Xiaomeng Xu
Xinan Jiao
Zhiming Pan
Yunzeng Zhang
author_facet Xiaohui Yuan
Han Xue
Xiaomeng Xu
Xinan Jiao
Zhiming Pan
Yunzeng Zhang
author_sort Xiaohui Yuan
collection DOAJ
description Abstract Background Salmonella Derby is one of the most predominant Salmonella serotypes that seriously threatens food safety. This bacterium can be further differentiated to sub-populations with different population sizes; however, whether and how the S. Derby–gut microbiota interactions affect epidemic patterns of S. Derby sub-populations remain largely unknown. Results We selected two representative strains, 14T and 14C, which represent rarely distributed and prevalent sub-populations of the S. Derby ST40 group, respectively, to address this question using a mouse model. Effects of oral administration of both strains was monitored for 14 days. Alpha diversity of gut microbiota at early stages of infection (4 h post infection) was higher in 14C-treated mice and lower in 14T-treated mice compared with controls. Strain 14T triggered stronger inflammation responses but with lower pathogen titer in spleen compared with strain 14C at 14 days post infection. Certain known probiotic bacteria that can hinder colonization of Salmonella, such as Bifidobacteriaceae and Akkermansiaceae, exhibited increased relative abundance in 14T-treated mice compared with 14C-treated mice. Our results also demonstrated that Ligilactobacillus strains isolated from gut microbiota showed stronger antagonistic activity against strain 14T compared with strain 14C. Conclusions We identified how S. Derby infection affected gut microbiota composition, and found that the 14T strain, which represented a rarely distributed S. Derby sub-population, triggered stronger host inflammation responses and gut microbiota disturbance compared with the 14C strain, which represented a prevalent S. Derby sub-population. This study provides novel insights on the impacts of gut microbiota on the epidemic patterns of Salmonella populations.
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spelling doaj.art-3bd046c9d7854fc68b3ff2f3e9c48e2e2022-12-21T16:43:07ZengBMCGut Pathogens1757-47492022-01-0114111210.1186/s13099-022-00480-6Closely related Salmonella Derby strains triggered distinct gut microbiota alterationXiaohui Yuan0Han Xue1Xiaomeng Xu2Xinan Jiao3Zhiming Pan4Yunzeng Zhang5Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou UniversityJiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou UniversityJiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou UniversityJiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou UniversityJiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou UniversityJiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou UniversityAbstract Background Salmonella Derby is one of the most predominant Salmonella serotypes that seriously threatens food safety. This bacterium can be further differentiated to sub-populations with different population sizes; however, whether and how the S. Derby–gut microbiota interactions affect epidemic patterns of S. Derby sub-populations remain largely unknown. Results We selected two representative strains, 14T and 14C, which represent rarely distributed and prevalent sub-populations of the S. Derby ST40 group, respectively, to address this question using a mouse model. Effects of oral administration of both strains was monitored for 14 days. Alpha diversity of gut microbiota at early stages of infection (4 h post infection) was higher in 14C-treated mice and lower in 14T-treated mice compared with controls. Strain 14T triggered stronger inflammation responses but with lower pathogen titer in spleen compared with strain 14C at 14 days post infection. Certain known probiotic bacteria that can hinder colonization of Salmonella, such as Bifidobacteriaceae and Akkermansiaceae, exhibited increased relative abundance in 14T-treated mice compared with 14C-treated mice. Our results also demonstrated that Ligilactobacillus strains isolated from gut microbiota showed stronger antagonistic activity against strain 14T compared with strain 14C. Conclusions We identified how S. Derby infection affected gut microbiota composition, and found that the 14T strain, which represented a rarely distributed S. Derby sub-population, triggered stronger host inflammation responses and gut microbiota disturbance compared with the 14C strain, which represented a prevalent S. Derby sub-population. This study provides novel insights on the impacts of gut microbiota on the epidemic patterns of Salmonella populations.https://doi.org/10.1186/s13099-022-00480-6Salmonella DerbyGut microbiotaInter-strain variation
spellingShingle Xiaohui Yuan
Han Xue
Xiaomeng Xu
Xinan Jiao
Zhiming Pan
Yunzeng Zhang
Closely related Salmonella Derby strains triggered distinct gut microbiota alteration
Gut Pathogens
Salmonella Derby
Gut microbiota
Inter-strain variation
title Closely related Salmonella Derby strains triggered distinct gut microbiota alteration
title_full Closely related Salmonella Derby strains triggered distinct gut microbiota alteration
title_fullStr Closely related Salmonella Derby strains triggered distinct gut microbiota alteration
title_full_unstemmed Closely related Salmonella Derby strains triggered distinct gut microbiota alteration
title_short Closely related Salmonella Derby strains triggered distinct gut microbiota alteration
title_sort closely related salmonella derby strains triggered distinct gut microbiota alteration
topic Salmonella Derby
Gut microbiota
Inter-strain variation
url https://doi.org/10.1186/s13099-022-00480-6
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AT xinanjiao closelyrelatedsalmonelladerbystrainstriggereddistinctgutmicrobiotaalteration
AT zhimingpan closelyrelatedsalmonelladerbystrainstriggereddistinctgutmicrobiotaalteration
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