C. Trunet , A. Cauquil , N. Hymery , L. Koullen , F. Postollec , L. Coroller
{"title":"苏云金芽孢杆菌菌株和其他蜡样芽孢杆菌菌株一样吗?基于表型的工具定位苏云金芽孢杆菌在蜡样芽孢杆菌群的多样性","authors":"C. Trunet , A. Cauquil , N. Hymery , L. Koullen , F. Postollec , L. Coroller","doi":"10.1016/j.resmic.2023.104077","DOIUrl":null,"url":null,"abstract":"<div><p>Some <span><em>Bacillus thuringiensis</em></span> (<em>Bt</em>) strains are used as pesticide agent. This species belongs to <span><em>Bacillus cereus</em></span> (<em>Bc</em>) group which contains many species with a high phenotypic diversity, and could be pathogenic like <em>B. cereus</em>. The aim of this study was to characterize the phenotype of 90 strains belonging to <em>Bc</em><span> group, half of which were Bt. Knowing that Bt strains belong to different phylogenetic </span><em>Bc</em> groups, do <em>Bt</em> strains have the same phenotype than other <em>Bc</em> group strains?</p><p>Five phenotypic parameters were estimated for 90 strains in the <em>Bc</em> group, of which 43 were <em>Bt</em><span> strains: minimal, maximal and optimal growth temperature, cytotoxicity on Caco-2 cells, heat resistance of spores. The dataset was processed by principal component analysis, showing that 53% of the variance of the profiles corresponded to factors linked to growth, heat resistance and cytotoxicity. The phenotype followed the phylogenetic groups based on </span><em>panC</em>. Bt strains showed similar behavior to other strains in the Bc group, in our experimental conditions. Commercial bio-insecticide strains were mesophilic with low heat resistance.</p></div>","PeriodicalId":21098,"journal":{"name":"Research in microbiology","volume":null,"pages":null},"PeriodicalIF":2.5000,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Are Bacillus thuringiensis strains like any other Bacillus cereus strains? Phenotypic-based tools to locate Bacillus thuringiensis in the diversity of the Bacillus cereus sensu lato group\",\"authors\":\"C. Trunet , A. Cauquil , N. Hymery , L. Koullen , F. Postollec , L. Coroller\",\"doi\":\"10.1016/j.resmic.2023.104077\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Some <span><em>Bacillus thuringiensis</em></span> (<em>Bt</em>) strains are used as pesticide agent. This species belongs to <span><em>Bacillus cereus</em></span> (<em>Bc</em>) group which contains many species with a high phenotypic diversity, and could be pathogenic like <em>B. cereus</em>. The aim of this study was to characterize the phenotype of 90 strains belonging to <em>Bc</em><span> group, half of which were Bt. Knowing that Bt strains belong to different phylogenetic </span><em>Bc</em> groups, do <em>Bt</em> strains have the same phenotype than other <em>Bc</em> group strains?</p><p>Five phenotypic parameters were estimated for 90 strains in the <em>Bc</em> group, of which 43 were <em>Bt</em><span> strains: minimal, maximal and optimal growth temperature, cytotoxicity on Caco-2 cells, heat resistance of spores. The dataset was processed by principal component analysis, showing that 53% of the variance of the profiles corresponded to factors linked to growth, heat resistance and cytotoxicity. The phenotype followed the phylogenetic groups based on </span><em>panC</em>. Bt strains showed similar behavior to other strains in the Bc group, in our experimental conditions. Commercial bio-insecticide strains were mesophilic with low heat resistance.</p></div>\",\"PeriodicalId\":21098,\"journal\":{\"name\":\"Research in microbiology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.5000,\"publicationDate\":\"2023-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Research in microbiology\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0923250823000529\",\"RegionNum\":4,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MICROBIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Research in microbiology","FirstCategoryId":"99","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0923250823000529","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MICROBIOLOGY","Score":null,"Total":0}
Are Bacillus thuringiensis strains like any other Bacillus cereus strains? Phenotypic-based tools to locate Bacillus thuringiensis in the diversity of the Bacillus cereus sensu lato group
Some Bacillus thuringiensis (Bt) strains are used as pesticide agent. This species belongs to Bacillus cereus (Bc) group which contains many species with a high phenotypic diversity, and could be pathogenic like B. cereus. The aim of this study was to characterize the phenotype of 90 strains belonging to Bc group, half of which were Bt. Knowing that Bt strains belong to different phylogenetic Bc groups, do Bt strains have the same phenotype than other Bc group strains?
Five phenotypic parameters were estimated for 90 strains in the Bc group, of which 43 were Bt strains: minimal, maximal and optimal growth temperature, cytotoxicity on Caco-2 cells, heat resistance of spores. The dataset was processed by principal component analysis, showing that 53% of the variance of the profiles corresponded to factors linked to growth, heat resistance and cytotoxicity. The phenotype followed the phylogenetic groups based on panC. Bt strains showed similar behavior to other strains in the Bc group, in our experimental conditions. Commercial bio-insecticide strains were mesophilic with low heat resistance.
期刊介绍：
Research in Microbiology is the direct descendant of the original Pasteur periodical entitled Annales de l''Institut Pasteur, created in 1887 by Emile Duclaux under the patronage of Louis Pasteur. The Editorial Committee included Chamberland, Grancher, Nocard, Roux and Straus, and the first issue began with Louis Pasteur''s "Lettre sur la Rage" which clearly defines the spirit of the journal:"You have informed me, my dear Duclaux, that you intend to start a monthly collection of articles entitled "Annales de l''Institut Pasteur". You will be rendering a service that will be appreciated by the ever increasing number of young scientists who are attracted to microbiological studies. In your Annales, our laboratory research will of course occupy a central position, but the work from outside groups that you intend to publish will be a source of competitive stimulation for all of us."That first volume included 53 articles as well as critical reviews and book reviews. From that time on, the Annales appeared regularly every month, without interruption, even during the two world wars. Although the journal has undergone many changes over the past 100 years (in the title, the format, the language) reflecting the evolution in scientific publishing, it has consistently maintained the Pasteur tradition by publishing original reports on all aspects of microbiology.
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