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Symbiotic bacteria stabilize the intestinal environment by producing phenylpropanoids
Geng Hu1, Liying Liu2, Xiuxiu Miao1
1College of Animal Science and Technology, Key Laboratory of Efficient Utilization of Non-grain Feed Resources (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an, China.
Certain gut microbes enhance chicken resistance to Salmonella Enteritidis infection by boosting phenylpropanoid production. This research sheds light on avian intestinal microbiota
Area of Science:
- Animal Science
- Microbiology
- Immunology
Background:
- Salmonella Enteritidis (S. Enteritidis) colonization in chicken intestines poses a food safety risk.
- Understanding avian resistance mechanisms is crucial for controlling S. Enteritidis transmission to humans.
Purpose of the Study:
- To investigate the mechanisms underlying chicken resistance to S. Enteritidis infection.
- To identify microbial and metabolic factors contributing to intestinal stability during S. Enteritidis challenge.
Main Methods:
- Generation of reciprocal crosses between two Chinese local chicken breeds.
- Oral inoculation of hybrid chickens with S. Enteritidis.
- Multi-omics analysis (metabolites, microbial communities, functional pathways) at 3 days post-inoculation.
Main Results:
- Identified 12 microbial species that thrived following S. Enteritidis challenge.
- Observed enhanced production of phenylpropanoids in the 'Cross' hybrid line.
- Correlated microbial thrive with enhanced phenylpropanoid production and intestinal stability.
Conclusions:
- Specific gut microbes play a role in avian resistance to S. Enteritidis.
- Phenylpropanoid biosynthesis, influenced by microbiota, contributes to intestinal stability.
- Findings enhance understanding of host-microbiota symbiosis and resistance mechanisms in chickens.
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