{"title":"Engineering <i>Agrobacterium tumefaciens</i> with a Type III Secretion System to Express Type III Effectors.","authors":"Vidhyavathi Raman, Kirankumar S Mysore","doi":"10.21769/BioProtoc.4726","DOIUrl":null,"url":null,"abstract":"<p><p>Plants elicit defense responses when exposed to pathogens, which partly contribute to the resistance of plants to Agrobacterium tumefaciens-mediated transformation. Some pathogenic bacteria have sophisticated mechanisms to counteract these defense responses by injecting Type III effectors (T3Es) through the Type III secretion system (T3SS). By engineering <i>A. tumefaciens</i> to express T3SS to deliver T3Es, we suppressed plant defense and enhanced plant genetic transformation. Here, we describe the optimized protocols for mobilization of T3SS-expressing plasmid to engineer <i>A. tumefaciens</i> to deliver proteins through T3SS and fractionation of cultures to study proteins from pellet and supernatants to determine protein secretion from engineered <i>A. tumefaciens</i>.</p>","PeriodicalId":8938,"journal":{"name":"Bio-protocol","volume":"13 15","pages":"e4726"},"PeriodicalIF":0.0000,"publicationDate":"2023-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/c7/68/BioProtoc-13-15-4726.PMC10415197.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bio-protocol","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.21769/BioProtoc.4726","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Plants elicit defense responses when exposed to pathogens, which partly contribute to the resistance of plants to Agrobacterium tumefaciens-mediated transformation. Some pathogenic bacteria have sophisticated mechanisms to counteract these defense responses by injecting Type III effectors (T3Es) through the Type III secretion system (T3SS). By engineering A. tumefaciens to express T3SS to deliver T3Es, we suppressed plant defense and enhanced plant genetic transformation. Here, we describe the optimized protocols for mobilization of T3SS-expressing plasmid to engineer A. tumefaciens to deliver proteins through T3SS and fractionation of cultures to study proteins from pellet and supernatants to determine protein secretion from engineered A. tumefaciens.
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