Wenyuan Zhou , Yeling Han , Wenjuan Li , Aiping Deng , Yajie Li , Jiaqian Xu , Guoqiang Zhu , Zhenquan Yang
{"title":"在中国食源性金黄色葡萄球菌中,前噬菌体的转导促进了噬菌体耐药性干扰吸附的传播","authors":"Wenyuan Zhou , Yeling Han , Wenjuan Li , Aiping Deng , Yajie Li , Jiaqian Xu , Guoqiang Zhu , Zhenquan Yang","doi":"10.1016/j.ijfoodmicro.2025.111271","DOIUrl":null,"url":null,"abstract":"<div><div>Although bacteriophages have proven to be efficient biocontrol agents for foodborne <em>Staphylococcus aureus</em>, the transmission of phage resistance resulting in the reduced efficacy of phage therapy remains to be explored. In this study, phage resistance and adsorption of 91 Chinese foodborne <em>S. aureus</em> isolates by 18 phages were estimated, and the distribution and transmission of phage resistance genes were investigated. The isolated 91 <em>S. aureus</em> comprised 50 multidrug-resistance isolates, all of which showed sensitivity to more than two phages. However, 9.9 % (9/91) of <em>S. aureus</em> isolates were resistant to all 18 phages, and the majority of phages (83.3 %, 15/18) did not adsorb to all foodborne <em>S. aureus</em> strains. Whole-genome analysis revealed that the 91 isolates comprised 101 phage resistance genes, including 24 genes were found in prophages (intact prophages, 19.8 %, 20/101; incomplete prophages, 16.8 %, 17/101). Notably, a temperate phage SapYZUs631 was successfully induced and exhibited better biological characteristics compared to other isolated <em>S. aureus</em> temperate phages, including higher titre (6.2 × 10<sup>9</sup> PFU/mL), stronger pH (4–11) and thermal (60 °C for 60 min) stability, and a wider host range (80.2 %, 73/91). The SapYZUs631 genome contained phage resistance gene <em>tarP</em> interfering with adsorption and virulence genes. The lysogeny of SapYZUs631 into <em>S. aureus</em> strains YZUstau27, YZUstau31, and YZUstau35 resulted in increased phage resistance and decreased adsorption. Therefore, our analysis suggests that the interruption of adsorption is the main reason for the phage resistance of foodborne <em>S. aureus</em> in China, which resulted from the transmission of phage resistance by prophage transduction.</div></div>","PeriodicalId":14095,"journal":{"name":"International journal of food microbiology","volume":"440 ","pages":"Article 111271"},"PeriodicalIF":5.0000,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Prophage transduction promotes the transmission of phage resistance interfering with adsorption among Chinese foodborne Staphylococcus aureus\",\"authors\":\"Wenyuan Zhou , Yeling Han , Wenjuan Li , Aiping Deng , Yajie Li , Jiaqian Xu , Guoqiang Zhu , Zhenquan Yang\",\"doi\":\"10.1016/j.ijfoodmicro.2025.111271\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Although bacteriophages have proven to be efficient biocontrol agents for foodborne <em>Staphylococcus aureus</em>, the transmission of phage resistance resulting in the reduced efficacy of phage therapy remains to be explored. In this study, phage resistance and adsorption of 91 Chinese foodborne <em>S. aureus</em> isolates by 18 phages were estimated, and the distribution and transmission of phage resistance genes were investigated. The isolated 91 <em>S. aureus</em> comprised 50 multidrug-resistance isolates, all of which showed sensitivity to more than two phages. However, 9.9 % (9/91) of <em>S. aureus</em> isolates were resistant to all 18 phages, and the majority of phages (83.3 %, 15/18) did not adsorb to all foodborne <em>S. aureus</em> strains. Whole-genome analysis revealed that the 91 isolates comprised 101 phage resistance genes, including 24 genes were found in prophages (intact prophages, 19.8 %, 20/101; incomplete prophages, 16.8 %, 17/101). Notably, a temperate phage SapYZUs631 was successfully induced and exhibited better biological characteristics compared to other isolated <em>S. aureus</em> temperate phages, including higher titre (6.2 × 10<sup>9</sup> PFU/mL), stronger pH (4–11) and thermal (60 °C for 60 min) stability, and a wider host range (80.2 %, 73/91). The SapYZUs631 genome contained phage resistance gene <em>tarP</em> interfering with adsorption and virulence genes. The lysogeny of SapYZUs631 into <em>S. aureus</em> strains YZUstau27, YZUstau31, and YZUstau35 resulted in increased phage resistance and decreased adsorption. Therefore, our analysis suggests that the interruption of adsorption is the main reason for the phage resistance of foodborne <em>S. aureus</em> in China, which resulted from the transmission of phage resistance by prophage transduction.</div></div>\",\"PeriodicalId\":14095,\"journal\":{\"name\":\"International journal of food microbiology\",\"volume\":\"440 \",\"pages\":\"Article 111271\"},\"PeriodicalIF\":5.0000,\"publicationDate\":\"2025-05-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International journal of food microbiology\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0168160525002168\",\"RegionNum\":1,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"FOOD SCIENCE & TECHNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International journal of food microbiology","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0168160525002168","RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"FOOD SCIENCE & TECHNOLOGY","Score":null,"Total":0}
Prophage transduction promotes the transmission of phage resistance interfering with adsorption among Chinese foodborne Staphylococcus aureus
Although bacteriophages have proven to be efficient biocontrol agents for foodborne Staphylococcus aureus, the transmission of phage resistance resulting in the reduced efficacy of phage therapy remains to be explored. In this study, phage resistance and adsorption of 91 Chinese foodborne S. aureus isolates by 18 phages were estimated, and the distribution and transmission of phage resistance genes were investigated. The isolated 91 S. aureus comprised 50 multidrug-resistance isolates, all of which showed sensitivity to more than two phages. However, 9.9 % (9/91) of S. aureus isolates were resistant to all 18 phages, and the majority of phages (83.3 %, 15/18) did not adsorb to all foodborne S. aureus strains. Whole-genome analysis revealed that the 91 isolates comprised 101 phage resistance genes, including 24 genes were found in prophages (intact prophages, 19.8 %, 20/101; incomplete prophages, 16.8 %, 17/101). Notably, a temperate phage SapYZUs631 was successfully induced and exhibited better biological characteristics compared to other isolated S. aureus temperate phages, including higher titre (6.2 × 109 PFU/mL), stronger pH (4–11) and thermal (60 °C for 60 min) stability, and a wider host range (80.2 %, 73/91). The SapYZUs631 genome contained phage resistance gene tarP interfering with adsorption and virulence genes. The lysogeny of SapYZUs631 into S. aureus strains YZUstau27, YZUstau31, and YZUstau35 resulted in increased phage resistance and decreased adsorption. Therefore, our analysis suggests that the interruption of adsorption is the main reason for the phage resistance of foodborne S. aureus in China, which resulted from the transmission of phage resistance by prophage transduction.
期刊介绍:
The International Journal of Food Microbiology publishes papers dealing with all aspects of food microbiology. Articles must present information that is novel, has high impact and interest, and is of high scientific quality. They should provide scientific or technological advancement in the specific field of interest of the journal and enhance its strong international reputation. Preliminary or confirmatory results as well as contributions not strictly related to food microbiology will not be considered for publication.