1
|
Ye J, Su Y, Peng X, Li H. Reactive Oxygen Species-Related Ceftazidime Resistance Is Caused by the Pyruvate Cycle Perturbation and Reverted by Fe 3 + in Edwardsiella tarda. Front Microbiol 2021; 12:654783. [PMID: 33995314 PMCID: PMC8113649 DOI: 10.3389/fmicb.2021.654783] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Accepted: 03/23/2021] [Indexed: 12/24/2022] Open
Abstract
Reactive oxygen species (ROS) are related to antibiotic resistance and have been reported in bacteria. However, whether ROS contribute to ceftazidime resistance and plays a role in ceftazidime-mediated killing is unknown. The present study showed lower ROS production in ceftazidime-resistant Edwardsiella tarda (LTB4-RCAZ) than that in LTB4-sensitive E. tarda (LTB4-S), two isogenic E. tarda LTB4 strains, which was related to bacterial viability in the presence of ceftazidime. Consistently, ROS promoter Fe3+ and inhibitor thiourea elevated and reduced the ceftazidime-mediated killing, respectively. Further investigation indicated that the reduction of ROS is related to inactivation of the pyruvate cycle, which provides sources for ROS biosynthesis, but not superoxide dismutase (SOD) and catalase (CAT), which degrade ROS. Interestingly, Fe3+ promoted the P cycle, increased ROS biosynthesis, and thereby promoted ceftazidime-mediated killing. The Fe3+-induced potentiation is generalizable to cephalosporins and clinically isolated multidrug-resistant pathogens. These results show that ROS play a role in bacterial resistance and sensitivity to ceftazidime. More importantly, the present study reveals a previously unknown mechanism that Fe3+ elevates ROS production via promoting the P cycle.
Collapse
Affiliation(s)
- Jingzhou Ye
- Center for Proteomics and Metabolomics, State Key Laboratory of Biocontrol, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Yubin Su
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Department of Biotechnology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Xuanxian Peng
- Center for Proteomics and Metabolomics, State Key Laboratory of Biocontrol, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-sen University, Guangzhou, China.,Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Hui Li
- Center for Proteomics and Metabolomics, State Key Laboratory of Biocontrol, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-sen University, Guangzhou, China.,Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| |
Collapse
|
2
|
Buján N, Toranzo AE, Magariños B. Edwardsiella piscicida: a significant bacterial pathogen of cultured fish. DISEASES OF AQUATIC ORGANISMS 2018; 131:59-71. [PMID: 30324915 DOI: 10.3354/dao03281] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Edwardsiella piscicida, a Gram-negative, facultative aerobic pathogen belonging to the Enterobacteriaceae family, is the etiological agent of edwardsiellosis in fish and a significant problem in global aquaculture. E. piscicida has been reported from a broad geographical range and has been isolated from more than 20 fish host species to date, but this is likely to be an underestimation, because misidentification of E. piscicida as other species within the genus remains to be resolved. Common clinical signs associated with edwardsiellosis include, but are not limited to, exophthalmia, haemorrhages of the skin and in several internal organs, mild to moderate dermal ulcerations, abdominal distension, discoloration in the fish surface, and erratic swimming. Many antibiotics are currently effective against E. piscicida, although legal restrictions and the cost of medicated feeds have encouraged significant research investment in vaccination for the management of edwardsiellosis in commercial aquaculture. Here we summarise the current understanding of E. piscicida and highlight the difficulties with species assignment and the need for further research on epidemiology and strain variability.
Collapse
Affiliation(s)
- N Buján
- Departamento de Microbioloxía y Parasitoloxía, Facultade de Bioloxía-Edif, CIBUS, and Instituto de Acuicultura, Universidade de Santiago de Compostela, Santiago de Compostela, 15782, Spain
| | | | | |
Collapse
|
3
|
LEE K, KIM HK, PARK SK, SOHN H, CHO Y, CHOI YM, JEONG DG, KIM JH. First report of the occurrence and whole-genome characterization of Edwardsiella tarda in the false killer whale (Pseudorca crassidens). J Vet Med Sci 2018; 80:1041-1046. [PMID: 29695679 PMCID: PMC6021894 DOI: 10.1292/jvms.17-0590] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Accepted: 04/16/2018] [Indexed: 01/22/2023] Open
Abstract
Although several Edwardsiella tarda infections have been reported, its pathogenic role in marine mammals has not been investigated at the genome level. We investigated the genome of E. tarda strain KC-Pc-HB1, isolated from the false killer whale (Pseudorca crassidens) found bycaught in South Korea. The obtained genome was similar to that of human pathogenic E. tarda strains, but distinct from other Edwardsiella species. Although type III and VI secretion systems, which are essential for the virulence of other Edwardsiella species, were absent, several virulence-related genes involved in the pathogenesis of E. tarda were found in the genome. These results provide important insights into the E. tarda infecting marine mammals and give valuable information on potential virulence factors in this pathogen.
Collapse
Affiliation(s)
- Kyunglee LEE
- Cetacean Research Institute (CRI), National Institute of
Fisheries Science (NIFS), Ulsan 44780, Republic of Korea
| | - Hye Kwon KIM
- Infectious Disease Research Center, Korea Research Institute
of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Sung-Kyun PARK
- Infectious Disease Research Center, Korea Research Institute
of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Hawsun SOHN
- Cetacean Research Institute (CRI), National Institute of
Fisheries Science (NIFS), Ulsan 44780, Republic of Korea
| | - Yuna CHO
- Cetacean Research Institute (CRI), National Institute of
Fisheries Science (NIFS), Ulsan 44780, Republic of Korea
| | - Young-Min CHOI
- Cetacean Research Institute (CRI), National Institute of
Fisheries Science (NIFS), Ulsan 44780, Republic of Korea
| | - Dae Gwin JEONG
- Infectious Disease Research Center, Korea Research Institute
of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Ji Hyung KIM
- Infectious Disease Research Center, Korea Research Institute
of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| |
Collapse
|
4
|
Reichley SR, Ware C, Steadman J, Gaunt PS, García JC, LaFrentz BR, Thachil A, Waldbieser GC, Stine CB, Buján N, Arias CR, Loch T, Welch TJ, Cipriano RC, Greenway TE, Khoo LH, Wise DJ, Lawrence ML, Griffin MJ. Comparative Phenotypic and Genotypic Analysis of Edwardsiella Isolates from Different Hosts and Geographic Origins, with Emphasis on Isolates Formerly Classified as E. tarda, and Evaluation of Diagnostic Methods. J Clin Microbiol 2017; 55:3466-3491. [PMID: 28978684 PMCID: PMC5703813 DOI: 10.1128/jcm.00970-17] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 09/28/2017] [Indexed: 11/20/2022] Open
Abstract
Edwardsiella spp. are responsible for significant losses in important wild and cultured fish species worldwide. Recent phylogenomic investigations have determined that bacteria historically classified as Edwardsiella tarda actually represent three genetically distinct yet phenotypically ambiguous taxa with various degrees of pathogenicity in different hosts. Previous recognition of these taxa was hampered by the lack of a distinguishing phenotypic character. Commercial test panel configurations are relatively constant over time, and as new species are defined, appropriate discriminatory tests may not be present in current test panel arrangements. While phenobiochemical tests fail to discriminate between these taxa, data presented here revealed discriminatory peaks for each Edwardsiella species using matrix-assisted laser desorption ionization-time of flight (MALDI-TOF) methodology, suggesting that MALDI-TOF can offer rapid, reliable identification in line with current systematic classifications. Furthermore, a multiplex PCR assay was validated for rapid molecular differentiation of the Edwardsiella spp. affecting fish. Moreover, the limitations of relying on partial 16S rRNA for discrimination of Edwardsiella spp. and advantages of employing alternative single-copy genes gyrB and sodB for molecular identification and classification of Edwardsiella were demonstrated. Last, sodB sequencing confirmed that isolates previously defined as typical motile fish-pathogenic E. tarda are synonymous with Edwardsiella piscicida, while atypical nonmotile fish-pathogenic E. tarda isolates are equivalent to Edwardsiella anguillarum Fish-nonpathogenic E. tarda isolates are consistent with E. tarda as it is currently defined. These analyses help deconvolute the scientific literature regarding these organisms and provide baseline information to better facilitate proper taxonomic assignment and minimize erroneous identifications of Edwardsiella isolates in clinical and research settings.
Collapse
Affiliation(s)
- Stephen R Reichley
- Thad Cochran National Warmwater Aquaculture Center, Stoneville, Mississippi, USA
- College of Veterinary Medicine, Mississippi State University, Mississippi State, Mississippi, USA
| | - Cynthia Ware
- Thad Cochran National Warmwater Aquaculture Center, Stoneville, Mississippi, USA
- College of Veterinary Medicine, Mississippi State University, Mississippi State, Mississippi, USA
| | - James Steadman
- Thad Cochran National Warmwater Aquaculture Center, Stoneville, Mississippi, USA
- College of Veterinary Medicine, Mississippi State University, Mississippi State, Mississippi, USA
| | - Patricia S Gaunt
- Thad Cochran National Warmwater Aquaculture Center, Stoneville, Mississippi, USA
- College of Veterinary Medicine, Mississippi State University, Mississippi State, Mississippi, USA
| | - Julio C García
- United States Department of Agriculture-Agricultural Research Service, Aquatic Animal Health Research Unit, Auburn, Alabama, USA
| | - Benjamin R LaFrentz
- United States Department of Agriculture-Agricultural Research Service, Aquatic Animal Health Research Unit, Auburn, Alabama, USA
| | - Anil Thachil
- Cornell University Animal Health Diagnostic Center, Ithaca, New York, USA
| | - Geoffrey C Waldbieser
- USDA-ARS Warmwater Aquaculture Research Unit, Thad Cochran National Warmwater Aquaculture Center, Stoneville, Mississippi, USA
| | - Cynthia B Stine
- Center for Veterinary Medicine, U.S. Food and Drug Administration, Laurel, Maryland, USA
| | - Noemí Buján
- Departamento de Microbioloxía e Parasitoloxía, CIBUS-Facultade de Bioloxía and Instituto de Acuicultura, Universidade de Santiago de Compostela, Santiago de Compostela, Galicia, Spain
| | - Cova R Arias
- School of Fisheries, Aquaculture, and Aquatic Sciences, Auburn University, Auburn, Alabama, USA
| | - Thomas Loch
- College of Veterinary Medicine, Michigan State University, East Lansing, Michigan, USA
| | - Timothy J Welch
- National Center for Cool and Cold Water Aquaculture, Kearneysville, West Virginia, USA
| | - Rocco C Cipriano
- USGS National Fish Health Research Laboratory, Kearneysville, West Virginia, USA
| | - Terrence E Greenway
- Thad Cochran National Warmwater Aquaculture Center, Stoneville, Mississippi, USA
| | - Lester H Khoo
- Thad Cochran National Warmwater Aquaculture Center, Stoneville, Mississippi, USA
- College of Veterinary Medicine, Mississippi State University, Mississippi State, Mississippi, USA
| | - David J Wise
- Thad Cochran National Warmwater Aquaculture Center, Stoneville, Mississippi, USA
| | - Mark L Lawrence
- College of Veterinary Medicine, Mississippi State University, Mississippi State, Mississippi, USA
| | - Matt J Griffin
- Thad Cochran National Warmwater Aquaculture Center, Stoneville, Mississippi, USA
- College of Veterinary Medicine, Mississippi State University, Mississippi State, Mississippi, USA
| |
Collapse
|
5
|
Shao S, Lai Q, Liu Q, Wu H, Xiao J, Shao Z, Wang Q, Zhang Y. Phylogenomics characterization of a highly virulent Edwardsiella strain ET080813T encoding two distinct T3SS and three T6SS gene clusters: Propose a novel species as Edwardsiella anguillarum sp. nov. Syst Appl Microbiol 2015; 38:36-47. [DOI: 10.1016/j.syapm.2014.10.008] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Revised: 09/20/2014] [Accepted: 10/27/2014] [Indexed: 10/24/2022]
|
6
|
Griffin MJ, Ware C, Quiniou SM, Steadman JM, Gaunt PS, Khoo LH, Soto E. Edwardsiella piscicida identified in the Southeastern USA by gyrB sequence, species-specific and repetitive sequence-mediated PCR. DISEASES OF AQUATIC ORGANISMS 2014; 108:23-35. [PMID: 24492051 DOI: 10.3354/dao02687] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A new Edwardsiella taxon was recently described from fishes of Europe and Asia. Phenotypically similar to E. tarda, extensive genetic and phenotypic characterization determined this new strain does not belong to any established Edwardsiella taxa, leading to the adoption of a new taxon, E. piscicida. Concurrent research in the USA also identified 2 genetically distinct taxa within the group of organisms traditionally classified as E. tarda. Comparisons of gyrB sequences between US isolates and E. piscicida from Europe and Asia identified several US isolates with >99.6% similarity to the gyrB sequence of the E. piscicida type strain (ET883) but <87% similarity to the E. tarda type strain (ATCC #15947). A discriminatory PCR was developed for the identification of E. tarda and 2 genetic variants of E. piscicida (E. piscicida and E. piscicida-like species). Using these PCR assays, a survey was conducted of 44 archived bacterial specimens from disease case submissions to the Aquatic Research and Diagnostic Laboratory (Stoneville, MS, USA) between 2007 and 2012. All 44 isolates, originally identified phenotypically and biochemically as E. tarda, were identified as E. piscicida by PCR. Repetitive sequence-mediated PCR (rep-PCR) analysis of these archived specimens suggests they are largely homogenous, similar to what has been observed for E. ictaluri. The gyrB sequence data, coupled with the E. piscicida specific-PCR and rep-PCR data, confirms that E. piscicida has been isolated from fish disease cases in the southeastern USA. Moreover, our survey data suggests E. piscicida may be more prevalent in catfish aquaculture than E. tarda.
Collapse
Affiliation(s)
- Matt J Griffin
- Aquatic Research and Diagnostic Laboratory, Thad Cochran National Warmwater Aquaculture Center, College of Veterinary Medicine, Mississippi State University, PO Box 197, 127 Experiment Station Road, Stoneville, Mississippi 38776, USA
| | | | | | | | | | | | | |
Collapse
|
7
|
Comparative analysis of Edwardsiella isolates from fish in the eastern United States identifies two distinct genetic taxa amongst organisms phenotypically classified as E. tarda. Vet Microbiol 2013; 165:358-72. [DOI: 10.1016/j.vetmic.2013.03.027] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Revised: 03/08/2013] [Accepted: 03/23/2013] [Indexed: 11/23/2022]
|
8
|
Functional characterization of Edwardsiella tarda twin-arginine translocation system and its potential use as biological containment in live attenuated vaccine of marine fish. Appl Microbiol Biotechnol 2012; 97:3545-57. [DOI: 10.1007/s00253-012-4462-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Revised: 09/07/2012] [Accepted: 09/20/2012] [Indexed: 11/25/2022]
|
9
|
Xiao J, Chen T, Yang M, Zhang Y, Wang Q. Identification of qseEGF genetic locus and its roles in controlling hemolytic activity and invasion in fish pathogen Edwardsiella tarda. Lett Appl Microbiol 2012; 55:91-8. [PMID: 22694092 DOI: 10.1111/j.1472-765x.2012.03260.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
AIMS The aims of this study were to reveal the roles of the gene locus qseEGF in the pathogenesis of Edwardsiella tarda. METHODS AND RESULTS Genome sequencing of fish pathogen E. tarda EIB202 reveals that the gene locus qseEGF, which encodes a novel two-component system QseEF, were located in E. tarda. The transcription of qseE, qseF and qseG was firstly characterized to be cotranscribed by reverse-transcribed PCR (RT-PCR). The mutant strains ΔqseE, ΔqseF and ΔqseG were constructed with in-frame deletion strategy. Compared with the wild type, all of the mutants showed attenuated virulence and impaired intracellular survival capabilities. Deletion in qseE, qseF and qseG resulted in different effects on hemolysin production in E. tarda. qRT-PCR results indicated that QseEF played a role in regulation of secretion systems, which in turn affected the virulence of E. tarda. CONCLUSIONS The results manifested that QseEF system affected the virulence in E. tarda EIB202 by controlling the secretion system and hemolysin production. QseE, QseG and QseF in E. tarda serve for the physiological fitness and pathogenesis related to the bacterial survival in macrophage and in vivo of fish. SIGNIFICANCE AND IMPACT The present results suggested that the important role of two-component system QseEF in regulation of E. tarda pathogenesis and its potential for attenuated live vaccine construction.
Collapse
Affiliation(s)
- Jingfan Xiao
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China
| | | | | | | | | |
Collapse
|
10
|
Yang M, Lv Y, Xiao J, Wu H, Zheng H, Liu Q, Zhang Y, Wang Q. Edwardsiella comparative phylogenomics reveal the new intra/inter-species taxonomic relationships, virulence evolution and niche adaptation mechanisms. PLoS One 2012; 7:e36987. [PMID: 22590641 PMCID: PMC3349661 DOI: 10.1371/journal.pone.0036987] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2012] [Accepted: 04/11/2012] [Indexed: 11/18/2022] Open
Abstract
Edwardsiella bacteria are leading fish pathogens causing huge losses to aquaculture industries worldwide. E. tarda is a broad-host range pathogen that infects more than 20 species of fish and other animals including humans while E. ictaluri is host-adapted to channel catfish causing enteric septicemia of catfish (ESC). Thus, these two species consist of a useful comparative system for studying the intricacies of pathogen evolution. Here we present for the first time the phylogenomic comparisons of 8 genomes of E. tarda and E. ictaluri isolates. Genome-based phylogenetic analysis revealed that E. tarda could be separate into two kinds of genotypes (genotype I, EdwGI and genotype II, EdwGII) based on the sequence similarity. E. tarda strains of EdwGI were clustered together with the E. ictaluri lineage and showed low sequence conservation to E. tarda strains of EdwGII. Multilocus sequence analysis (MLSA) of 48 distinct Edwardsiella strains also supports the new taxonomic relationship of the lineages. We identified the type III and VI secretion systems (T3SS and T6SS) as well as iron scavenging related genes that fulfilled the criteria of a key evolutionary factor likely facilitating the virulence evolution and adaptation to a broad range of hosts in EdwGI E. tarda. The surface structure-related genes may underlie the adaptive evolution of E. ictaluri in the host specification processes. Virulence and competition assays of the null mutants of the representative genes experimentally confirmed their contributive roles in the evolution/niche adaptive processes. We also reconstructed the hypothetical evolutionary pathway to highlight the virulence evolution and niche adaptation mechanisms of Edwardsiella. This study may facilitate the development of diagnostics, vaccines, and therapeutics for this under-studied pathogen.
Collapse
Affiliation(s)
- Minjun Yang
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, People's Republic of China
| | - Yuanzhi Lv
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, People's Republic of China
| | - Jingfan Xiao
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, People's Republic of China
| | - Haizhen Wu
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, People's Republic of China
| | - Huajun Zheng
- Shanghai – MOST Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai, Shanghai, China
| | - Qin Liu
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, People's Republic of China
| | - Yuanxing Zhang
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, People's Republic of China
| | - Qiyao Wang
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, People's Republic of China
- * E-mail:
| |
Collapse
|