{"title":"在细菌毒力的定量植物外模型中,预防性噬菌体生物控制可防止伯克霍尔德氏菌(Burkholderia gladioli)感染。","authors":"Philip Lauman, Jonathan J Dennis","doi":"10.1128/aem.01317-24","DOIUrl":null,"url":null,"abstract":"<p><p>Agricultural crop yield losses and food destruction due to infections by phytopathogenic bacteria such as <i>Burkholderia gladioli</i>, which causes devastating diseases in onion, mushroom, corn, and rice crops, pose major threats to worldwide food security and cause enormous damage to the global economy. Biocontrol using bacteriophages has emerged as a promising strategy against a number of phytopathogenic species but has never been attempted against <i>B. gladioli</i> due to a lack of quantitative infection models and a scarcity of phages targeting this specific pathogen. In this study, we present a novel, procedurally straightforward, and highly generalizable fully quantitative <i>ex planta</i> maceration model and an accompanying quantitative metric, the <i>ex planta</i> maceration index (<i>x</i>PMI). In utilizing this model to test the <i>ex planta</i> virulence of a panel of 12 strains of <i>B. gladioli</i> in <i>Allium cepa</i> and <i>Agaricus bisporus</i>, we uncover substantial temperature-, host-, and strain-dependent diversity in the virulence of this fascinating pathogenic species. Crucially, we demonstrate that <i>Burkholderia</i> phages KS12 and AH2, respectively, prevent and reduce infection-associated onion tissue destruction, measured through significant (<i>P</i> < 0.0001) reductions in <i>x</i>PMI, by phytopathogenic strains of <i>B. gladioli</i>, thereby demonstrating the potential of agricultural phage biocontrol targeting this problematic microorganism.IMPORTANCEAgricultural crop destruction is increasing due to infections caused by bacteria such as <i>Burkholderia</i> gladioli, which causes plant tissue diseases in onion, mushroom, corn, and rice crops. These bacteria pose a major threat to worldwide food production, which, in turn, damages the global economy. One potential solution being investigated to prevent bacterial infections of plants is \"biocontrol\" using bacteriophages (or phages), which are bacterial viruses that readily infect and destroy bacterial cells. In this article, we demonstrate that <i>Burkholderia</i> phages KS12 and AH2 prevent or reduce infection-associated plant tissue destruction caused by strains of <i>B. gladioli</i>, thereby demonstrating the inherent potential of agricultural phage biocontrol.</p>","PeriodicalId":8002,"journal":{"name":"Applied and Environmental Microbiology","volume":null,"pages":null},"PeriodicalIF":3.9000,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Prophylactic phage biocontrol prevents <i>Burkholderia gladioli</i> infection in a quantitative <i>ex planta</i> model of bacterial virulence.\",\"authors\":\"Philip Lauman, Jonathan J Dennis\",\"doi\":\"10.1128/aem.01317-24\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Agricultural crop yield losses and food destruction due to infections by phytopathogenic bacteria such as <i>Burkholderia gladioli</i>, which causes devastating diseases in onion, mushroom, corn, and rice crops, pose major threats to worldwide food security and cause enormous damage to the global economy. Biocontrol using bacteriophages has emerged as a promising strategy against a number of phytopathogenic species but has never been attempted against <i>B. gladioli</i> due to a lack of quantitative infection models and a scarcity of phages targeting this specific pathogen. In this study, we present a novel, procedurally straightforward, and highly generalizable fully quantitative <i>ex planta</i> maceration model and an accompanying quantitative metric, the <i>ex planta</i> maceration index (<i>x</i>PMI). In utilizing this model to test the <i>ex planta</i> virulence of a panel of 12 strains of <i>B. gladioli</i> in <i>Allium cepa</i> and <i>Agaricus bisporus</i>, we uncover substantial temperature-, host-, and strain-dependent diversity in the virulence of this fascinating pathogenic species. Crucially, we demonstrate that <i>Burkholderia</i> phages KS12 and AH2, respectively, prevent and reduce infection-associated onion tissue destruction, measured through significant (<i>P</i> < 0.0001) reductions in <i>x</i>PMI, by phytopathogenic strains of <i>B. gladioli</i>, thereby demonstrating the potential of agricultural phage biocontrol targeting this problematic microorganism.IMPORTANCEAgricultural crop destruction is increasing due to infections caused by bacteria such as <i>Burkholderia</i> gladioli, which causes plant tissue diseases in onion, mushroom, corn, and rice crops. These bacteria pose a major threat to worldwide food production, which, in turn, damages the global economy. One potential solution being investigated to prevent bacterial infections of plants is \\\"biocontrol\\\" using bacteriophages (or phages), which are bacterial viruses that readily infect and destroy bacterial cells. In this article, we demonstrate that <i>Burkholderia</i> phages KS12 and AH2 prevent or reduce infection-associated plant tissue destruction caused by strains of <i>B. gladioli</i>, thereby demonstrating the inherent potential of agricultural phage biocontrol.</p>\",\"PeriodicalId\":8002,\"journal\":{\"name\":\"Applied and Environmental Microbiology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.9000,\"publicationDate\":\"2024-09-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Applied and Environmental Microbiology\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://doi.org/10.1128/aem.01317-24\",\"RegionNum\":2,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"BIOTECHNOLOGY & APPLIED MICROBIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied and Environmental Microbiology","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1128/aem.01317-24","RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"BIOTECHNOLOGY & APPLIED MICROBIOLOGY","Score":null,"Total":0}
Prophylactic phage biocontrol prevents Burkholderia gladioli infection in a quantitative ex planta model of bacterial virulence.
Agricultural crop yield losses and food destruction due to infections by phytopathogenic bacteria such as Burkholderia gladioli, which causes devastating diseases in onion, mushroom, corn, and rice crops, pose major threats to worldwide food security and cause enormous damage to the global economy. Biocontrol using bacteriophages has emerged as a promising strategy against a number of phytopathogenic species but has never been attempted against B. gladioli due to a lack of quantitative infection models and a scarcity of phages targeting this specific pathogen. In this study, we present a novel, procedurally straightforward, and highly generalizable fully quantitative ex planta maceration model and an accompanying quantitative metric, the ex planta maceration index (xPMI). In utilizing this model to test the ex planta virulence of a panel of 12 strains of B. gladioli in Allium cepa and Agaricus bisporus, we uncover substantial temperature-, host-, and strain-dependent diversity in the virulence of this fascinating pathogenic species. Crucially, we demonstrate that Burkholderia phages KS12 and AH2, respectively, prevent and reduce infection-associated onion tissue destruction, measured through significant (P < 0.0001) reductions in xPMI, by phytopathogenic strains of B. gladioli, thereby demonstrating the potential of agricultural phage biocontrol targeting this problematic microorganism.IMPORTANCEAgricultural crop destruction is increasing due to infections caused by bacteria such as Burkholderia gladioli, which causes plant tissue diseases in onion, mushroom, corn, and rice crops. These bacteria pose a major threat to worldwide food production, which, in turn, damages the global economy. One potential solution being investigated to prevent bacterial infections of plants is "biocontrol" using bacteriophages (or phages), which are bacterial viruses that readily infect and destroy bacterial cells. In this article, we demonstrate that Burkholderia phages KS12 and AH2 prevent or reduce infection-associated plant tissue destruction caused by strains of B. gladioli, thereby demonstrating the inherent potential of agricultural phage biocontrol.
期刊介绍:
Applied and Environmental Microbiology (AEM) publishes papers that make significant contributions to (a) applied microbiology, including biotechnology, protein engineering, bioremediation, and food microbiology, (b) microbial ecology, including environmental, organismic, and genomic microbiology, and (c) interdisciplinary microbiology, including invertebrate microbiology, plant microbiology, aquatic microbiology, and geomicrobiology.