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Shymialevich D, Wójcicki M, Sokołowska B. The Novel Concept of Synergically Combining: High Hydrostatic Pressure and Lytic Bacteriophages to Eliminate Vegetative and Spore-Forming Bacteria in Food Products. Foods 2024; 13:2519. [PMID: 39200446 PMCID: PMC11353811 DOI: 10.3390/foods13162519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2024] [Revised: 08/07/2024] [Accepted: 08/10/2024] [Indexed: 09/02/2024] Open
Abstract
The article focuses on the ongoing challenge of eliminating vegetative and spore-forming bacteria from food products that exhibit resistance to the traditional preservation methods. In response to this need, the authors highlight an innovative approach based on the synergistic utilization of high-hydrostatic-pressure (HHP) and lytic bacteriophages. The article reviews the current research on the use of HHP and lytic bacteriophages to combat bacteria in food products. The scope includes a comprehensive review of the existing literature on bacterial cell damage following HHP application, aiming to elucidate the synergistic effects of these technologies. Through this in-depth analysis, the article aims to contribute to a deeper understanding of how these innovative techniques can improve food safety and quality. There is no available research on the use of HHP and bacteriophages in the elimination of spore-forming bacteria; however, an important role of the synergistic effect of HHP and lytic bacteriophages with the appropriate adjustment of the parameters has been demonstrated in the more effective elimination of non-spore-forming bacteria from food products. This suggests that, when using this approach in the case of spore-forming bacteria, there is a high chance of the effective inactivation of this biological threat.
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Affiliation(s)
- Dziyana Shymialevich
- Department of Microbiology, Prof. Wacław Dąbrowski Institute of Agricultural and Food Biotechnology—State Research Institute, Rakowiecka 36 Str., 02-532 Warsaw, Poland; (M.W.); (B.S.)
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Loot C, Millot GA, Richard E, Littner E, Vit C, Lemoine F, Néron B, Cury J, Darracq B, Niault T, Lapaillerie D, Parissi V, Rocha EPC, Mazel D. Integron cassettes integrate into bacterial genomes via widespread non-classical attG sites. Nat Microbiol 2024; 9:228-240. [PMID: 38172619 DOI: 10.1038/s41564-023-01548-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 11/07/2023] [Indexed: 01/05/2024]
Abstract
Integrons are genetic elements involved in bacterial adaptation which capture, shuffle and express genes encoding adaptive functions embedded in cassettes. These events are governed by the integron integrase through site-specific recombination between attC and attI integron sites. Using computational and molecular genetic approaches, here we demonstrate that the integrase also catalyses cassette integration into bacterial genomes outside of its known att sites. Once integrated, these cassettes can be expressed if located near bacterial promoters and can be excised at the integration point or outside, inducing chromosomal modifications in the latter case. Analysis of more than 5 × 105 independent integration events revealed a very large genomic integration landscape. We identified consensus recombination sequences, named attG sites, which differ greatly in sequence and structure from classical att sites. These results unveil an alternative route for dissemination of adaptive functions in bacteria and expand the role of integrons in bacterial evolution.
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Affiliation(s)
- Céline Loot
- Institut Pasteur, Université Paris Cité, CNRS UMR 3525, Unité Plasticité du Génome Bactérien, Paris, France.
| | - Gael A Millot
- Institut Pasteur, Université Paris Cité, Bioinformatics and Biostatistics Hub, Paris, France
| | - Egill Richard
- Institut Pasteur, Université Paris Cité, CNRS UMR 3525, Unité Plasticité du Génome Bactérien, Paris, France
- Sorbonne Université, Collège Doctoral, Paris, France
| | - Eloi Littner
- Sorbonne Université, Collège Doctoral, Paris, France
- DGA CBRN Defence, Vert-le-Petit, France
- Institut Pasteur, Université Paris Cité, CNRS UMR 3525, Microbial Evolutionary Genomics, Paris, France
| | - Claire Vit
- Institut Pasteur, Université Paris Cité, CNRS UMR 3525, Unité Plasticité du Génome Bactérien, Paris, France
- Sorbonne Université, Collège Doctoral, Paris, France
| | - Frédéric Lemoine
- Institut Pasteur, Université Paris Cité, Bioinformatics and Biostatistics Hub, Paris, France
| | - Bertrand Néron
- Institut Pasteur, Université Paris Cité, Bioinformatics and Biostatistics Hub, Paris, France
| | - Jean Cury
- Université Paris-Saclay, Inria, Laboratoire de Recherche en Informatique, CNRS UMR 8623, Orsay, France
| | - Baptiste Darracq
- Institut Pasteur, Université Paris Cité, CNRS UMR 3525, Unité Plasticité du Génome Bactérien, Paris, France
- Sorbonne Université, Collège Doctoral, Paris, France
| | - Théophile Niault
- Institut Pasteur, Université Paris Cité, CNRS UMR 3525, Unité Plasticité du Génome Bactérien, Paris, France
- Sorbonne Université, Collège Doctoral, Paris, France
| | - Delphine Lapaillerie
- Université de Bordeaux, Fundamental Microbiology and Pathogenicity Laboratory, CNRS UMR 5234, Département de Sciences Biologiques et Médicales, Bordeaux, France
- Viral DNA Integration and Chromatin Dynamics Network (DyNAVir), Bordeaux, France
| | - Vincent Parissi
- Université de Bordeaux, Fundamental Microbiology and Pathogenicity Laboratory, CNRS UMR 5234, Département de Sciences Biologiques et Médicales, Bordeaux, France
- Viral DNA Integration and Chromatin Dynamics Network (DyNAVir), Bordeaux, France
| | - Eduardo P C Rocha
- Institut Pasteur, Université Paris Cité, CNRS UMR 3525, Microbial Evolutionary Genomics, Paris, France
| | - Didier Mazel
- Institut Pasteur, Université Paris Cité, CNRS UMR 3525, Unité Plasticité du Génome Bactérien, Paris, France
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Meng B, Qi Z, Li X, Peng H, Bi S, Wei X, Li Y, Zhang Q, Xu X, Zhao H, Yang X, Wang C, Zhao X. Characterization of Mu-Like Yersinia Phages Exhibiting Temperature Dependent Infection. Microbiol Spectr 2023; 11:e0020323. [PMID: 37466430 PMCID: PMC10434027 DOI: 10.1128/spectrum.00203-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 06/16/2023] [Indexed: 07/20/2023] Open
Abstract
Yersinia pestis is the etiological agent of plague. Marmota himalayana of the Qinghai-Tibetan plateau is the primary host of flea-borne Y. pestis. This study is the report of isolation of Mu-like bacteriophages of Y. pestis from M. himalayana. The isolation and characterization of four Mu-like phages of Y. pestis were reported, which were named as vB_YpM_3, vB_YpM_5, vB_YpM_6, and vB_YpM_23 according to their morphology. Comparative genome analysis revealed that vB_YpM_3, vB_YpM_5, vB_YpM_6, and vB_YpM_23 are phylogenetically closest to Escherichia coli phages Mu, D108 and Shigella flexneri phage SfMu. The role of LPS core structure of Y. pestis in the phages' receptor was pinpointed. All the phages exhibit "temperature dependent infection," which is independent of the growth temperature of the host bacteria and dependent of the temperature of phage infection. The phages lyse the host bacteria at 37°C, but enter the lysogenic cycle and become prophages in the chromosome of the host bacteria at 26°C. IMPORTANCE Mu-like bacteriophages of Y. pestis were isolated from M. himalayana of the Qinghai-Tibetan plateau in China. These bacteriophages have a unique temperature dependent life cycle, follow a lytic cycle at the temperature of warm-blooded mammals (37°С), and enter the lysogenic cycle at the temperature of its flea-vector (26°С). A switch from the lysogenic to the lytic cycle occurred when lysogenic bacteria were incubated from lower temperature to higher temperature (initially incubating at 26°C and shifting to 37°C). It is speculated that the temperature dependent lifestyle of bacteriophages may affect the population dynamics and pathogenicity of Y. pestis.
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Affiliation(s)
- Biao Meng
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China
- Institute of Disease Control and Prevention, Chinese PLA, Beijing, China
| | - Zhizhen Qi
- Qinghai Institute for Endemic Disease Prevention and Control of Qinghai Province, Key Laboratory for Plague Prevention and Control of Qinghai Province, Xining, China
| | - Xiang Li
- Qinghai Institute for Endemic Disease Prevention and Control of Qinghai Province, Key Laboratory for Plague Prevention and Control of Qinghai Province, Xining, China
| | - Hong Peng
- Institute of Disease Control and Prevention, Chinese PLA, Beijing, China
| | - Shanzheng Bi
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China
- Institute of Disease Control and Prevention, Chinese PLA, Beijing, China
| | - Xiao Wei
- Institute of Disease Control and Prevention, Chinese PLA, Beijing, China
| | - Yan Li
- Institute of Disease Control and Prevention, Chinese PLA, Beijing, China
| | - Qi Zhang
- Qinghai Institute for Endemic Disease Prevention and Control of Qinghai Province, Key Laboratory for Plague Prevention and Control of Qinghai Province, Xining, China
| | - Xiaoqing Xu
- Qinghai Institute for Endemic Disease Prevention and Control of Qinghai Province, Key Laboratory for Plague Prevention and Control of Qinghai Province, Xining, China
| | - Haihong Zhao
- Qinghai Institute for Endemic Disease Prevention and Control of Qinghai Province, Key Laboratory for Plague Prevention and Control of Qinghai Province, Xining, China
| | - Xiaoyan Yang
- Qinghai Institute for Endemic Disease Prevention and Control of Qinghai Province, Key Laboratory for Plague Prevention and Control of Qinghai Province, Xining, China
| | - Changjun Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China
- Institute of Disease Control and Prevention, Chinese PLA, Beijing, China
| | - Xiangna Zhao
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China
- Institute of Disease Control and Prevention, Chinese PLA, Beijing, China
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