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Can SGI1 family integrative mobilizable elements overcome entry exclusion exerted by IncA and IncC plasmids on IncC plasmids? SGI1家族整合可移动元件能否克服IncA和IncC质粒对IncC质粒施加的进入排斥?
IF 2.6 4区 生物学
Plasmid Pub Date : 2022-09-01 DOI: 10.1016/j.plasmid.2022.102654
Stephanie J. Ambrose, Ruth M. Hall
{"title":"Can SGI1 family integrative mobilizable elements overcome entry exclusion exerted by IncA and IncC plasmids on IncC plasmids?","authors":"Stephanie J. Ambrose,&nbsp;Ruth M. Hall","doi":"10.1016/j.plasmid.2022.102654","DOIUrl":"10.1016/j.plasmid.2022.102654","url":null,"abstract":"<div><p>Though IncC and IncA plasmids are compatible, they exert high level exclusion on one another. Here, the question of whether the presence of an SGI1 family element in the donor can overcome the exclusion of an IncC plasmid exerted by an IncC or IncA plasmid in the recipient was investigated. The transfer of the integrative mobilizable element SGI1 and its many variant forms into a new host is dependent on transfer machinery supplied by IncC or IncA plasmids. SGI1 elements include the determinants of a mobilization system and three genes that encode homologues of transfer proteins including TraG. Exclusion of a complete IncC plasmid by a complete IncA or IncC plasmid in the recipient was not ameliorated by an SGI1 element in the donor. However, transfer of the SGI was unaffected indicating that a functional mating apparatus was formed. The presence of only the plasmid-derived <em>eexC</em> or <em>eexA</em> gene in the recipient exerted high level exclusion on an incoming IncC plasmid and this was overcome by an SGI1 variant in the donor. Hence, the SGI affects only entry exclusion and additional plasmid features must influence other routes to plasmid exclusion.</p></div>","PeriodicalId":49689,"journal":{"name":"Plasmid","volume":"123 ","pages":"Article 102654"},"PeriodicalIF":2.6,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10440741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Corrigendum to “The fluorination effect on the transfection efficacy of cell penetrating peptide complexes” [PLASMID, volume 119 (2022) start page–end page] “氟化对细胞穿透肽复合物转染效果的影响”的勘误表[PLASMID,卷119(2022)起始页-结束页]
IF 2.6 4区 生物学
Plasmid Pub Date : 2022-09-01 DOI: 10.1016/j.plasmid.2022.102653
Abdulgader A. Baoum
{"title":"Corrigendum to “The fluorination effect on the transfection efficacy of cell penetrating peptide complexes” [PLASMID, volume 119 (2022) start page–end page]","authors":"Abdulgader A. Baoum","doi":"10.1016/j.plasmid.2022.102653","DOIUrl":"10.1016/j.plasmid.2022.102653","url":null,"abstract":"","PeriodicalId":49689,"journal":{"name":"Plasmid","volume":"123 ","pages":"Article 102653"},"PeriodicalIF":2.6,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0147619X22000373/pdfft?md5=46012899fc51b8e1ca54c8bba50e98b1&pid=1-s2.0-S0147619X22000373-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40444684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Genomic analysis of plasmid content in food isolates of E. coli strongly supports its role as a reservoir for the horizontal transfer of virulence and antibiotic resistance genes 大肠杆菌食物分离株质粒含量的基因组分析有力地支持其作为毒力和抗生素抗性基因水平转移的储存库的作用
IF 2.6 4区 生物学
Plasmid Pub Date : 2022-09-01 DOI: 10.1016/j.plasmid.2022.102650
María G. Balbuena-Alonso , Gerardo Cortés-Cortés , Jay W. Kim , Patricia Lozano-Zarain , Manel Camps , Rosa del Carmen Rocha-Gracia
{"title":"Genomic analysis of plasmid content in food isolates of E. coli strongly supports its role as a reservoir for the horizontal transfer of virulence and antibiotic resistance genes","authors":"María G. Balbuena-Alonso ,&nbsp;Gerardo Cortés-Cortés ,&nbsp;Jay W. Kim ,&nbsp;Patricia Lozano-Zarain ,&nbsp;Manel Camps ,&nbsp;Rosa del Carmen Rocha-Gracia","doi":"10.1016/j.plasmid.2022.102650","DOIUrl":"10.1016/j.plasmid.2022.102650","url":null,"abstract":"<div><p>The link between <em>E. coli</em> strains contaminating foods and human disease is unclear, with some reports supporting a direct transmission of pathogenic strains via food and others highlighting their role as reservoirs for resistance and virulence genes. Here we take a genomics approach, analyzing a large set of fully-assembled genomic sequences from <em>E. coli</em> available in <em>GenBank</em>. Most of the strains isolated in food are more closely related to each other than to clinical strains, arguing against a frequent direct transmission of pathogenic strains from food to the clinic. We also provide strong evidence of genetic exchanges between food and clinical strains that are facilitated by plasmids. This is based on an overlapped representation of virulence and resistance genes in plasmids isolated from these two sources. We identify clusters of phylogenetically-related plasmids that are largely responsible for the observed overlap and see evidence of specialization, with some food plasmid clusters preferentially transferring virulence factors over resistance genes. Consistent with these observations, food plasmids have a high mobilization potential based on their plasmid taxonomic unit classification and on an analysis of mobilization gene content. We report antibiotic resistance genes of high clinical relevance and their specific incompatibility group associations. Finally, we also report a striking enrichment for adhesins in food plasmids and their association with specific IncF replicon subtypes. The identification of food plasmids with specific markers (Inc and PTU combinations) as mediators of horizontal transfer between food and clinical strains opens new research avenues and should assist with the design of surveillance strategies.</p></div>","PeriodicalId":49689,"journal":{"name":"Plasmid","volume":"123 ","pages":"Article 102650"},"PeriodicalIF":2.6,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0147619X22000348/pdfft?md5=9f491b0dd351de1bd75d81f36ca0aa5b&pid=1-s2.0-S0147619X22000348-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10380388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
An easily modifiable conjugative plasmid for studying horizontal gene transfer 一种易于修饰的共轭质粒,用于研究水平基因转移
IF 2.6 4区 生物学
Plasmid Pub Date : 2022-09-01 DOI: 10.1016/j.plasmid.2022.102649
Qinqin Wang, Asmus Kalckar Olesen, Lorrie Maccario, Jonas Stenløkke Madsen
{"title":"An easily modifiable conjugative plasmid for studying horizontal gene transfer","authors":"Qinqin Wang,&nbsp;Asmus Kalckar Olesen,&nbsp;Lorrie Maccario,&nbsp;Jonas Stenløkke Madsen","doi":"10.1016/j.plasmid.2022.102649","DOIUrl":"10.1016/j.plasmid.2022.102649","url":null,"abstract":"<div><p>Horizontal gene transfer is an important mechanism in bacterial evolution and can occur at striking frequencies when mediated by mobile genetic elements. Conjugative plasmids are mobile genetic elements that are main drivers of horizontal transfer and a major facilitator in the spread of antibiotic resistance genes. However, conjugative plasmid models that readily can be genetically modified with the aim to study horizontal transfer are not currently available. The aim of this study was to develop a conjugative plasmid model where the insertion of gene cassettes such as reporter genes (<em>e.g.,</em> fluorescent proteins) or antibiotic resistance genes would be efficient and convenient. Here, we introduced a single <em>att</em>Tn7 site into the conjugative broad-host-range IncP-1 plasmid pKJK5 in a non-disruptive manner. Furthermore, a version with lower transfer rate and a non-conjugative version of pKJK5-<em>att</em>Tn7 were also constructed. The advantage of having the <em>att</em>Tn7 sites is that genes of interest can be introduced in a single step with very high success rate using the Tn7 transposition system. In addition, larger genetic fragments can be inserted. To illustrate the efficacy of the constructed pKJK5 plasmids, they were complemented with <em>sfGFP</em> (a gene encoding superfolder green fluorescent protein) in addition to seven different β-lactamase genes representing the four known classes of β-lactamases.</p></div>","PeriodicalId":49689,"journal":{"name":"Plasmid","volume":"123 ","pages":"Article 102649"},"PeriodicalIF":2.6,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0147619X22000336/pdfft?md5=06314ad271c53a5c0c2ed80a570d5f9c&pid=1-s2.0-S0147619X22000336-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10370107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Characterization of IncI1/ST71 and IncF18:A−:B1 multidrug-resistance plasmids from an avian Escherichia coli isolate 禽大肠杆菌分离株IncI1/ST71和IncF18:A−:B1多重耐药质粒的鉴定
IF 2.6 4区 生物学
Plasmid Pub Date : 2022-09-01 DOI: 10.1016/j.plasmid.2022.102651
Teng-Li Zhang , Dan-Dan He , Ying-Ying Liu, Li-Jie Yu, Gong-Zheng Hu, Yu-Shan Pan
{"title":"Characterization of IncI1/ST71 and IncF18:A−:B1 multidrug-resistance plasmids from an avian Escherichia coli isolate","authors":"Teng-Li Zhang ,&nbsp;Dan-Dan He ,&nbsp;Ying-Ying Liu,&nbsp;Li-Jie Yu,&nbsp;Gong-Zheng Hu,&nbsp;Yu-Shan Pan","doi":"10.1016/j.plasmid.2022.102651","DOIUrl":"10.1016/j.plasmid.2022.102651","url":null,"abstract":"<div><p>To characterize IncI1 and IncF18:A−:B1 multidrug-resistance plasmids from an avian <em>Escherichia coli</em><span> isolate, antibiotic susceptibility testing, conjugation assays, transformation assays, S1-PFGE, and WGS analysis were performed. The 119,457-bp plasmid pEC014–1 with a multidrug-resistance region (MRR) containing four different segments interspersed with six IS</span><em>26</em><span> elements, belonged to incompatibility group I1 and sequence type 71. The 154,516-bp plasmid pEC014–2 with two replicons, typed as FII-18 and FIB-1, carried 14 resistance determinants including </span><em>bla</em><sub>TEM-1b</sub>, <em>bla</em><sub>OXA-1</sub>, <em>oqxAB</em>, <em>dfrA17</em>, <em>aac(6′)-Ib-cr</em>, <em>sul1</em>, <em>sul2</em>, <em>tet</em>(A), <em>floR</em>, <em>catB3</em>, <em>hph</em>(<em>aph(4)-Ia</em>), <em>aacC4</em>(<em>aac(3)-IV</em>), <em>aadA5</em>, <em>arr-3</em>, and a <em>mer</em>EDACPTR loci in MRR, and additionally encoded three virulence loci: <em>iro</em>NEDCB, <em>sit</em>ABCD, and <em>iuc</em>ABCD-<em>iut</em>A. Plasmid stability assays showed that pEC014–1 and pEC014–2 were stable in recipient <em>E. coli</em> C600 for at least 15 days of passage. Competition assays were carried out to evaluate the fitness impact of pEC014–2 carriage <em>in vitro</em>, revealing a decrease in host fitness. Growth kinetics showed that the growth rate for pEC014–1 or/and pEC014–2 bearing cells was significantly slower than that of the <em>E. coli</em> C600 host strain in the exponential stage (<em>p</em><span> &lt; 0.01), with only cells carrying pEC014–1 sustaining rapid growth after 6 h of exponential growth. Our findings highlight the mosaic structures of epidemic plasmid IncI1/ST71 and F18:A−:B1 lineages and contribute to a better understanding of the evolution and dissemination of these multidrug resistance and virulence plasmids.</span></p></div>","PeriodicalId":49689,"journal":{"name":"Plasmid","volume":"123 ","pages":"Article 102651"},"PeriodicalIF":2.6,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10385869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Conjugation-mediated transfer of pXO16, a large plasmid from Bacillus thuringiensis sv. israelensis, across the Bacillus cereus group and its impact on host phenotype 苏云金芽孢杆菌大质粒pXO16的偶联介导转移。蜡样芽孢杆菌群及其对宿主表型的影响
IF 2.6 4区 生物学
Plasmid Pub Date : 2022-07-01 DOI: 10.1016/j.plasmid.2022.102639
Pauline Hinnekens, Jacques Mahillon
{"title":"Conjugation-mediated transfer of pXO16, a large plasmid from Bacillus thuringiensis sv. israelensis, across the Bacillus cereus group and its impact on host phenotype","authors":"Pauline Hinnekens,&nbsp;Jacques Mahillon","doi":"10.1016/j.plasmid.2022.102639","DOIUrl":"10.1016/j.plasmid.2022.102639","url":null,"abstract":"<div><p>pXO16, the 350 kb-conjugative plasmid from <span><em>Bacillus thuringiensis</em></span> sv. <em>israelensis</em> promotes its own transfer at high efficiency, triggers the transfer of mobilizable and non-mobilizable plasmids, as well as the transfer of host chromosomal loci. Naturally found in <em>B. thuringiensis</em> sv. <em>israelensis</em>, pXO16 transfers to various strains of <span><em>Bacillus cereus</em><em> sensu lato</em></span> (<em>s.l.</em>) at a wide range of frequencies. Despite this host diversity, a paradox remains between the relatively large host spectrum and the natural occurrence of pXO16, so far restricted to <em>B. thuringiensis</em> sv. <em>israelensis</em>. Proposing first insights exploring this paradox, we investigated the behaviour of pXO16 amongst different members of the <em>B. cereus</em> group. We first looked at the transfer of pXO16 to two new host clusters of <em>B. cereus s.l.</em>, <span><em>Bacillus mycoides</em></span> and <span><em>Bacillus anthracis</em></span> clusters. This examination brought to light the impairment of the characteristic rhizoidal phenotype of <em>B. mycoides</em> in presence of pXO16. We also explored the stability of pXO16 at different temperatures as some <em>B. cereus</em> group members are well-known for their psychro- or thermo-tolerance. This shed light on the thermo-sensitivity of the plasmid. The influence of pXO16 on its host cell growth and on swimming capacity also revealed no or limited impact on its natural host <em>B. thuringiensis</em> sv. <em>israelensis</em>. On the contrary, pXO16 affected more strongly both the growth and swimming capacity of other <em>B. cereus s.l.</em> hosts. This reinforced the running hypothesis of a co-evolution between pXO16 and <em>B. thuringiensis</em> sv. <em>israelensis</em>, enabling the plasmid maintenance without impairing the host strain development.</p></div>","PeriodicalId":49689,"journal":{"name":"Plasmid","volume":"122 ","pages":"Article 102639"},"PeriodicalIF":2.6,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10379858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Implementation of a tunable t-CRISPRi system for gene regulation in Giardia duodenalis 十二指肠贾第虫基因调控可调t-CRISPRi系统的实现
IF 2.6 4区 生物学
Plasmid Pub Date : 2022-07-01 DOI: 10.1016/j.plasmid.2022.102641
Eduardo García-Huerta, Sara Espinoza-Corona, Francisco Alejandro Lagunas-Rangel, Maria Luisa Bazan-Tejeda, Yessica Vazquez-Cobix, Maria Guadalupe Ortega-Pierres, Rosa Maria Bermúdez-Cruz
{"title":"Implementation of a tunable t-CRISPRi system for gene regulation in Giardia duodenalis","authors":"Eduardo García-Huerta,&nbsp;Sara Espinoza-Corona,&nbsp;Francisco Alejandro Lagunas-Rangel,&nbsp;Maria Luisa Bazan-Tejeda,&nbsp;Yessica Vazquez-Cobix,&nbsp;Maria Guadalupe Ortega-Pierres,&nbsp;Rosa Maria Bermúdez-Cruz","doi":"10.1016/j.plasmid.2022.102641","DOIUrl":"10.1016/j.plasmid.2022.102641","url":null,"abstract":"<div><p><span><em>Giardia duodenalis</em><em>,</em></span> is a binuclear and microaerophilic protozoan that causes <span><em>giardia</em></span><span>sis. Up to date, several molecular approaches have been taken to understand the molecular mechanisms of diverse cellular processes in this parasitic protozoan. However, the role of many genes involved in these processes needs further analysis. The CRISPR interference<span> (CRISPRi) system has been widely used, as a constitutive expression system for gene silencing purposes in several parasites, including </span></span><em>Giardia</em>. The aim of this work was to implement a tunable t-CRISPRi system in <em>Giardia</em><span> to silence abundant, moderately and low expressed genes, by constructing an optimized and inducible plasmid for the expression of both gRNA<span> and dCas9. A doxycycline inducible pRan promoter was used to express dCas9 and each gRNA, consistently dCas9 expression and nuclear localization were confirmed by Western-blot and immunofluorescence in transfected trophozoites. The transcriptional repression was performed on α-tubulin (high expression), giardipain-1 (moderate expression) and Sir2<span> and Sir4 (low expression) genes. The α-tubulin gene knock-down caused by dCas9 doxycycline-induction was confirmed by a decrease in its protein expression which was of 50% and 60% at 24 and 48 h, respectively. This induced morphological alterations in flagella. The giardipain-1 knock down, showed a decrease in protein expression of 40 and 50% at 12 and 24 h, respectively, without affecting trophozoites viability, consistent with this a zymogram analysis on giardipain-1 knock down revealed a decrease in giardipain-1 protease activity. When repressing sirtuins expression, a total repression was obtained but trophozoites viability was compromised. This approach provides a molecular tool for a tailored repression to produce specific gene knockdowns.</span></span></span></p></div>","PeriodicalId":49689,"journal":{"name":"Plasmid","volume":"122 ","pages":"Article 102641"},"PeriodicalIF":2.6,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10728840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Genetic editing of multi-resistance plasmids in Escherichia coli isolated from meat during transfer 肉中分离的大肠杆菌多抗性质粒转移过程中的基因编辑
IF 2.6 4区 生物学
Plasmid Pub Date : 2022-07-01 DOI: 10.1016/j.plasmid.2022.102640
Tania S. Darphorn , Stanley Brul , Benno H. ter Kuile
{"title":"Genetic editing of multi-resistance plasmids in Escherichia coli isolated from meat during transfer","authors":"Tania S. Darphorn ,&nbsp;Stanley Brul ,&nbsp;Benno H. ter Kuile","doi":"10.1016/j.plasmid.2022.102640","DOIUrl":"10.1016/j.plasmid.2022.102640","url":null,"abstract":"<div><p>Resistance plasmids mediate the rapid spread of antimicrobial resistance, which poses a threat to veterinary and human healthcare. This study addresses the question whether resistance plasmids from <em>Escherichia coli</em> isolated from foodstuffs always transfer unchanged to recipient <em>E. coli</em> cells, or that genetic editing can occur. Strains containing between one and five different plasmids were co-incubated with a standard recipient strain. Plasmids isolated from transconjugant strains were sequenced using short and long read technologies and compared to the original plasmids from the donor strains. After one hour of co-incubation only a single plasmid was transferred from donor to recipient strains. If the donor possessed several plasmids, longer co-incubation resulted in multiple plasmids being transferred. Transferred plasmids showed mutations, mostly in mobile genetic elements, in the conjugative transfer gene <em>pilV</em> and in genes involved in plasmid maintenance. In one transconjugant, a resistance cluster encoding tetracycline resistance was acquired by the IncI1 plasmid from the IncX1 plasmid that was also present in the donor strain, but that was not transferred. A single plasmid transferred twelve times back and forth between <em>E. coli</em> strains resulted in a fully conserved plasmid with no mutations, apart from repetitive rearrangements of <em>pilV</em> from and back to its original conformation in the donor strain. The overall outcome suggests that some genetic mutations and rearrangements can occur during plasmid transfer. The possibility of such mutations should be taken into consideration in epidemiological research aimed at attribution of resistance to specific sources.</p></div>","PeriodicalId":49689,"journal":{"name":"Plasmid","volume":"122 ","pages":"Article 102640"},"PeriodicalIF":2.6,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0147619X22000245/pdfft?md5=b0cec5ce4681954e2d02ce1bd862eeb6&pid=1-s2.0-S0147619X22000245-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10370059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Plasmidome analysis of a hospital effluent biofilm: Status of antibiotic resistance 某医院污水生物膜质粒分析:抗生素耐药性状况
IF 2.6 4区 生物学
Plasmid Pub Date : 2022-07-01 DOI: 10.1016/j.plasmid.2022.102638
Claire Hennequin , Christiane Forestier , Ousmane Traore , Didier Debroas , Geneviève Bricheux
{"title":"Plasmidome analysis of a hospital effluent biofilm: Status of antibiotic resistance","authors":"Claire Hennequin ,&nbsp;Christiane Forestier ,&nbsp;Ousmane Traore ,&nbsp;Didier Debroas ,&nbsp;Geneviève Bricheux","doi":"10.1016/j.plasmid.2022.102638","DOIUrl":"10.1016/j.plasmid.2022.102638","url":null,"abstract":"<div><p><span><span>Plasmids are widely involved in the dissemination of characteristics within bacterial communities. Their genomic content can be assessed by high-throughput sequencing of the whole plasmid fraction of an environment, the plasmidome. In this study, we analyzed the plasmidome of a biofilm formed in the effluents of the teaching hospital of Clermont-Ferrand (France). Our analysis discovered &gt;350 new complete plasmids, with a length ranging from 1219 to 40,193 bp. Forty-two plasmid incompatibility (Inc) groups were found among all the plasmid contigs<span>. Ten large plasmids, described here in detail, were reconstructed from plasmid contigs, seven of which carried antibiotic resistance genes<span>. Four plasmids potentially confer resistance to numerous families of antibiotics, including carbapenems, aminoglycosides, </span></span></span>colistin, and chloramphenicol. Most of these plasmids were affiliated to </span><em>Proteobacteria</em>, a phylum of Gram-negative bacteria. This study therefore illustrates the composition of an environmental mixed biofilm in terms of plasmids and antibiotic resistance genes.</p></div>","PeriodicalId":49689,"journal":{"name":"Plasmid","volume":"122 ","pages":"Article 102638"},"PeriodicalIF":2.6,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10376769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Characterization of the Agrobacterium octopine-cucumopine catabolic plasmid pAtAg67 八爪农杆菌-黄瓜分解代谢质粒pAtAg67的鉴定
IF 2.6 4区 生物学
Plasmid Pub Date : 2022-05-01 DOI: 10.1016/j.plasmid.2022.102629
Marjolein J.G. Hooykaas, Shuai Shao , Paul J.J. Hooykaas
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引用次数: 1
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