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Qian M, Xu D, Wang J, Zaeim D, Han J, Qu D. Isolation, antimicrobial resistance and virulence characterization of Salmonella spp. from fresh foods in retail markets in Hangzhou, China. PLoS One 2023; 18:e0292621. [PMID: 37856530 PMCID: PMC10586686 DOI: 10.1371/journal.pone.0292621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 09/25/2023] [Indexed: 10/21/2023] Open
Abstract
Salmonella can cause severe foodborne diseases. This study investigated the prevalence of Salmonella spp. in fresh foods in Hangzhou market and their harborage of antibiotic resistance and virulence genes, antibiotic susceptibility, and pathogenicity. A total of 500 samples (pork, n = 140; chicken, n = 128; vegetable, n = 232) were collected over a one-year period. Salmonella was found in 4.2% (21) of samples with the detection rate in pork, chicken and vegetables as 4.3% (6), 6.3% (8), and 3% (7), respectively. One Salmonella strain was recovered from each positive sample. The isolates were identified as six serotypes, of which S. Enteritidis (n = 7) and S. Typhimurium (n = 6) were the most predominant serotypes. The majority of isolates showed resistance to tetracycline (85.7%) and/or ciprofloxacin (71.4%). Tetracycline resistance genes showed the highest prevalence (90.5%). The occurrence of resistance genes for β-lactams (blaTEM-1, 66.7%; and blaSHV, 9.5%) and aminoglycosides (aadA1, 47.6%; Aac(3)-Ia, 19%) was higher than sulfonamides (sul1, 42.9%) and quinolones (parC, 38.1%). The virulence gene fimA was detected in 57.1% of isolates. Gene co-occurrence analysis implied that resistance genes were associated with virulence genes. Furthermore, selected S. Typhimurium isolates (n = 4) carrying different resistance and virulence genes up-regulated the secretions of cytokines IL-6 and IL-8 by Caco-2 cells in different degrees, suggesting that virulence genes may play a role in inflammatory transcription. In in vivo virulence test, microbiological counts in mouse feces and tissues showed that all included S. Typhimurium were able to infect mice, with one strain showing significantly higher virulence than others. In conclusion, this study indicates Salmonella contamination in fresh foods in Hangzhou market poses a risk to public health and it should be closely monitored to prevent and control foodborne diseases.
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Affiliation(s)
- Min Qian
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Dingting Xu
- The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Jiankang Wang
- Agricultural Technology and Water Conservancy Service Center, Jiaxing, China
| | - Davood Zaeim
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Jianzhong Han
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Daofeng Qu
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
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2
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Xu H, Cao X, Zhang W, Li Q. Co-existence of two ciprofloxacin-resistant Salmonella enterica serovar Kentucky strains in the urine of a bladder cancer patient. J Glob Antimicrob Resist 2022; 30:354-356. [PMID: 35842116 DOI: 10.1016/j.jgar.2022.07.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 07/07/2022] [Accepted: 07/08/2022] [Indexed: 10/17/2022] Open
Affiliation(s)
- Haiyan Xu
- Nantong Center for Disease Control and Prevention, Nantong, China
| | - Xiaoli Cao
- Department of Laboratory Medicine, Nantong Tumor Hospital, Affiliated Tumor Hospital of Nantong University, Nantong, China
| | - Weibing Zhang
- Nantong Center for Disease Control and Prevention, Nantong, China.
| | - Qiuchun Li
- Jiangsu Key Lab of Zoonosis/Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, China.
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3
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Anti-Biofilms’ Activity of Garlic and Thyme Essential Oils against Salmonella typhimurium. Molecules 2022; 27:molecules27072182. [PMID: 35408576 PMCID: PMC9000680 DOI: 10.3390/molecules27072182] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 03/17/2022] [Accepted: 03/23/2022] [Indexed: 01/23/2023] Open
Abstract
Biofilm control by essential oil (EO) application has recently increased to preclude biofilm production on foods and environmental surfaces. In this work, the anti-biofilm effects of garlic and thyme essential oils using the minimum inhibitory concentration (MIC) method against Salmonella typhimurium recovered from different abattoir samples were investigated along with the virulence genes (InvA, SdiA and Stn genes), and the antimicrobial susceptibility profile of S. typhimurium as well. The obtained results revealed that S. typhimurium contaminated abattoir samples to varying degrees. The InvA gene was investigated in all isolates, whereas the SdiA and Stn genes were observed in four and three isolates, respectively. Utilizing the disc diffusion method, S. typhimurium isolates demonstrated substantial resistance to most of the examined antibiotics with a high multiple antibiotic resistance index. S. typhimurium isolates demonstrated biofilm formation abilities to various degrees at varied temperatures levels (4 °C and 37 °C). In conclusion, the obtained samples from the research area are regarded as a potential S. typhimurium contamination source. Furthermore, garlic essential oil (GEO) has more potential to inhibit S. typhimurium biofilm at different sub-minimum inhibitory concentrations as compared to thyme essential oil (TEO). Therefore, these EOs are considered as potential natural antibacterial options that could be applied in food industry.
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Ammeri RW, Di Rauso Simeone G, Hassen W, Ibrahim C, Ammar RB, Hassen A. Bacterial consortium biotransformation of pentachlorophenol contaminated wastewater. Arch Microbiol 2021; 203:6231-6243. [PMID: 34591145 DOI: 10.1007/s00203-021-02589-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 09/16/2021] [Accepted: 09/17/2021] [Indexed: 10/20/2022]
Abstract
The aims of this study were (i) to compare PCP removal (100 mg L-1) by two bacterial consortia B1 and B2 in sterile wastewater (STWW) and liquid mineral medium (MSM), (ii) PCP effect in biofilm formation and antimicrobial susceptibility. PCP removal was measured by high-performance liquid chromatography (HPLC) during 168 h at 30 °C. Biofilm formation was assessed with two approaches: Congo Red Agar and Microtiter-plate. Antimicrobial susceptibility was determined by the agar disc diffusion technique. The results showed that the PCP removal for consortium B1 and B2 after 168 h was 70 and 97.5% in STWW; 62.2 and 85.5% in MSM, respectively. In addition, PCP addition showed an increase in biofilm development especially for B2 consortium around 3.5 nm in 100 mg L-1 PCP. PCP added in the Muller Hinton (MH) medium and Gentamicin disc showed a clear increase in diameter of cell lysis around 2 to 4.5 cm.
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Affiliation(s)
- Rim Werheni Ammeri
- Laboratoire de Traitement Et Valorisation Des Rejets Hydriques (LTVRH), Water Research and Technology Center (CERTE), Technopole Borj-Cédria, B.P. 273, 8020, Soliman, Tunisia. .,Eremology and Combating Desertification, Arid Regions Institute of Medenine, Medenine, Tunisia.
| | - Giuseppe Di Rauso Simeone
- Dipartimento Di Agraria, Università Degli Studi Di Napoli Federico II, Via Università 100, 80055, Portici, Italy
| | - Wafa Hassen
- Research Unit of Analysis and Process Applied To the Environmental, APAE Higher Institute of Applied Sciences and Technology Mahdia, the University of Monastir, Monastir, Tunisia
| | - Chourouk Ibrahim
- Laboratoire de Traitement Et Valorisation Des Rejets Hydriques (LTVRH), Water Research and Technology Center (CERTE), Technopole Borj-Cédria, B.P. 273, 8020, Soliman, Tunisia.,Dipartimento Di Agraria, Università Degli Studi Di Napoli Federico II, Via Università 100, 80055, Portici, Italy
| | - Rym Ben Ammar
- Dipartimento Di Agraria, Università Degli Studi Di Napoli Federico II, Via Università 100, 80055, Portici, Italy
| | - Abdennaceur Hassen
- Laboratoire de Traitement Et Valorisation Des Rejets Hydriques (LTVRH), Water Research and Technology Center (CERTE), Technopole Borj-Cédria, B.P. 273, 8020, Soliman, Tunisia
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Ammeri RW, Hidri Y, Hassen W, Mehri I, Khlifi N, Hassen A. Surfactant efficiency on pentachlorophenol-contaminated wastewater enhanced by Pseudomonas putida AJ 785569. Arch Microbiol 2021; 203:5141-5152. [PMID: 34327555 DOI: 10.1007/s00203-021-02486-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 07/08/2021] [Accepted: 07/09/2021] [Indexed: 11/30/2022]
Abstract
This study aims to evaluate the effect of three surfactants on the removal of PCP (800 mg L-1) from Secondary Treated Wastewater (STWW) by Pseudomonas putida AJ 785569. The effect of surfactants [sodium lauryl sulfate (SDS) as anionic, Tween 80 (TW80) as non-anionic and cetyltrimethylammonium bromide (CTAB) as cationic] is tested about the three following aspects: (1) bacterial growth, (2) bacterial biofilm formation or development and (3) PCP rate removal. The results showed that strain P. putida AJ 785569 could adsorb around 30 mg L-1 and remove 600 mg L-1 of PCP within 168 h of incubation. The SDS developed the growth of bacteria and the removal of PCP. This PCP removal in mineral salt medium (MSM) is around 760 mg L-1 (95% degradation) higher than the ones registered with CTAB and TW80 with a value 506.75 (63% degradation) and 364.1 mg L-1 (45% degradation), respectively. The obtained results of chloride concentration showed an important relation with PCP removal during incubation with an important value. Monitoring the development of bacterial biofilm, in MSM medium added with PCP (100 mg L-1) by strain P. putida AJ 785569, showed a significant increase in the optical density value from 0.9 to 4 at λ = 595 nm, a modification of strain P. putida AJ 785569's morphotype, density and color colonies.
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Affiliation(s)
- Rim Werheni Ammeri
- Center of Research and Water Technologies (CERTE), Laboratory of Treatment and Valorization of Water Rejects (LTVRH), Techno Park of Borj-Cédria, BP. 273, 8020, Borj-Cédria, Tunisia. .,Faculty of Mathematical, Physical and Natural Sciences of Tunis, University of Tunis El Manar, 2092, Tunis, Tunisia.
| | - Yassine Hidri
- Integrated Olive Production Laboratory (LR 16IO3), Cité Mahrajène, BP. 208, 1082, Tunis, Tunisia
| | - Wafa Hassen
- Research Unit of Analysis and Process Applied to the Environmental APAE Higher Institute of Applied Sciences and Technology Mahdia, The University of Monastir, Monastir, Tunisia
| | - Ines Mehri
- Center of Research and Water Technologies (CERTE), Laboratory of Treatment and Valorization of Water Rejects (LTVRH), Techno Park of Borj-Cédria, BP. 273, 8020, Borj-Cédria, Tunisia
| | - Nesrine Khlifi
- Center of Research and Water Technologies (CERTE), Laboratory of Treatment and Valorization of Water Rejects (LTVRH), Techno Park of Borj-Cédria, BP. 273, 8020, Borj-Cédria, Tunisia
| | - Abdennaceur Hassen
- Center of Research and Water Technologies (CERTE), Laboratory of Treatment and Valorization of Water Rejects (LTVRH), Techno Park of Borj-Cédria, BP. 273, 8020, Borj-Cédria, Tunisia
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Ammeri RW, Hassen W, Hidri Y, Di Rauso Simeone G, Hassen A. Macrophyte and indigenous bacterial co-remediation process for pentachlorophenol removal from wastewater. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2021; 24:271-282. [PMID: 34121527 DOI: 10.1080/15226514.2021.1933897] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
This study has contributed in the description of bioaugmentation-phytoremediation efficiency process using Typha angustifolia concerning PCP tolerance and removal from wastewater. Samples of wastewater were collected from industrial wastewater plants, namely row wastewater effluent "E.WW", primary wastewater "P.WW", secondary wastewater "S.WW", clarified wastewater "AC.WW". These effluents were spiked with PCP at different rate (100, 500, and 1000 mg.L-1), physical, chemical and biological properties were monitored. A second experiment was set up in order to check the efficiency of phytoremediation treatments of the different effluents artificially contaminated with 200 mg.L-1 PCP after 20 days lab scale experiment. An important PCP removal by indigenous bacteria was showed in S. WW with values from 1000 to 72.2 mg.L-1 from T0 (start of the experiment) to TF (end of the experiment), respectively. Phytoremediation process allowed a decrease of PCP rate from 200 to 6.4 mg.L-1, a decrease of chloride content from 14.0 to 4.0 mg.L-1 in S.WW samples was observed. Furthermore, a significant increase of bacterial number in S.WW and AC.WW to 1.700 × 106 and 1.450 × 106 CFU.mL-1, respectively was observed. In addition, the DGGE analysis showed that after bioaugmentation-phytoremediation treatments, the highest species richness and relative abundance in wastewater effluent was observed. Novelty statement Pentachlorophenol (PCP) is one of highly toxic of polychlorophenols and required to continuously monitor in environment. This paper presenting a sensitive method phytoremediation and bioaugmentation for PCP biotransformation in wastewater. The novelty is the choice of a macrophyte Typha angustifolia, which is still used for the elimination of heavy metals but it not used for pesticide and pollutant removal in wastewater. Also, there are different analysis that was performed in order to check phyto-technique process (DGGE and HPLC). On the other side, in this study, the phyto-techniques with Typha angustifolia positively affected intrinsic microorganisms in order to promote pollutant remediation. So, the intrinsic microorganisms in wastewater with the macrophyte presence have a great capacity to reduce this pollutant and improve the bioremediation process.
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Affiliation(s)
- Rim Werheni Ammeri
- Water Treatment and Recycling Laboratory, Water Research and Technology Center (CERTE), Technopole Borj-Cédria, Soliman, Tunisia
- Faculty of Sciences of Tunis (FST), University of Mathematical, Physical and Natural Sciences of Tunis El Manar, Tunis, Tunisia
| | - Wafa Hassen
- Research Unit of Analysis and Process Applied to the Environmental (APAE), Higher Institute of Applied Sciences and Technology Mahdia, University of Monastir, Monastir, Tunisia
| | - Yassine Hidri
- Integrated Olive Oil Production Laboratory (LR 16IO3), Cité Mahragène, Tunis, Tunisia
| | | | - Abdennaceur Hassen
- Water Treatment and Recycling Laboratory, Water Research and Technology Center (CERTE), Technopole Borj-Cédria, Soliman, Tunisia
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7
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Salmonella Gallinarum in Small-Scale Commercial Layer Flocks: Occurrence, Molecular Diversity and Antibiogram. Vet Sci 2021; 8:vetsci8050071. [PMID: 33922826 PMCID: PMC8145292 DOI: 10.3390/vetsci8050071] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 04/19/2021] [Accepted: 04/21/2021] [Indexed: 11/22/2022] Open
Abstract
Salmonella Gallinarum is one of the most important bacterial pathogens associated with diminished egg production in poultry. The aim of this study was to understand the occurrence, molecular traits and antimicrobial resistance patterns of Salmonella Gallinarum strains isolated from small-scale commercial layer flocks with low level biosecurity standards in Bangladesh. A total of 765 samples, including cloacal swabs (535), visceral organs (50), and droppings (180), were collected from chickens of 12 layer flocks in 11 districts. Salmonella Gallinarum was isolated and characterized through culture-based method, followed by biochemical tests, sero-grouping, PCR assays, sequencing, and antibiogram. The identity of biochemically detected isolates of Salmonella Gallinarum was confirmed via genus-specific 16S rRNA gene based PCR, followed by invA and spvC genes based PCR assays. Occurrence of Salmonella Gallinarum was detected in overall 25.75% (197/765) samples, with a significantly (p < 0.05) higher incidence in visceral organs (42%) in comparison to cloacal swab (24%) and droppings (26%). Sequencing and subsequent phylogenetic analysis of invA and spvC genes in representative strains of Salmonella Gallinarum revealed a close genetic lineage, with a sequence similarity of 98.05–99.21% and 97.51–99.45%, respectively, to previously published sequences of the corresponding genes from the same serogroup strains. Remarkably, 66.5% (131/197) of the isolated strains of Salmonella Gallinarum were found to be resistant to 3 to 6 antimicrobial agents, and interpreted as multidrug resistant (MDR). The findings of this study underscore an inherent need of appropriate control measures to curb the widespread incidence of MDR Salmonella Gallinarum in small-scale commercial layer flocks, thereby, facilitating enhanced egg production and further support to the food security and safety in low resource settings.
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8
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Krishna D, Dhanashree B. Antibiogram, Virulence Genes, and Biofilm-Forming Ability of Clinical Salmonella enterica Serovars: An In Vitro Study. Microb Drug Resist 2020; 27:871-878. [PMID: 33305986 DOI: 10.1089/mdr.2020.0419] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Salmonella enterica serovar Typhi and Salmonella Paratyphi are causative agents of enteric fever. Salmonella Typhi persists as a biofilm on gallstones. Hence, we studied the biofilm formation, antibiogram, and virulence genes of S. enterica serovars. Antibiogram of S. enterica serovars from human blood and stool samples were studied by Kirby-Bauer disk diffusion method and biofilm by microtiter plate method. We studied the minimum inhibitory concentration of the isolates by Vitek-2 semiautomated system. Polymerase chain reaction was done to detect invA and spvC genes. Of the 55 isolates studied, 36 (65.45%) were Salmonella Typhi, 13 (23.63%) were Salmonella Paratyphi A, 2 (3.64%) were Salmonella Typhimurium, and 4 (7.28%) were Salmonella spp. Resistance to ciprofloxacin and nalidixic acid were found to be 81.8% and 92.7%, respectively. Chloramphenicol and cotrimoxazole-susceptible strains were 98.18%. One each of Salmonella Typhi, Salmonella Paratyphi A, and S. enterica isolates formed weak biofilm at 28°C. However, at 37°C eight Salmonella Typhi produced weak biofilm in the presence of bile. One Salmonella Paratyphi A and two Salmonella spp. formed weak biofilm in the absence of bile. All the isolates had the invA gene. Salmonella Typhimurium had invA and spvC genes. Bile may contribute to biofilm formation and persistence of the Salmonella Typhi on gallstones, which may lead to carrier state. Changing antibiotic susceptibility pattern of Salmonella serovars is observed in our geographic area. The presence of invA and spvC genes indicate the ability of invasiveness and intracellular survival.
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Affiliation(s)
- Dhiraj Krishna
- Department of Microbiology, Kasturba Medical College, Manipal Academy of Higher Education, Mangalore, India
| | - Biranthabail Dhanashree
- Department of Microbiology, Kasturba Medical College, Manipal Academy of Higher Education, Mangalore, India
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9
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Beshiru A, Igbinosa IH, Igbinosa EO. Prevalence of Antimicrobial Resistance and Virulence Gene Elements of Salmonella Serovars From Ready-to-Eat (RTE) Shrimps. Front Microbiol 2019; 10:1613. [PMID: 31354693 PMCID: PMC6637730 DOI: 10.3389/fmicb.2019.01613] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Accepted: 06/28/2019] [Indexed: 01/02/2023] Open
Abstract
Gastrointestinal illnesses continue to be a global public health risk. Exposure to foodborne Salmonella directly or indirectly through consumption of ready-to-eat seafood can be an important route of infection to humans. This study was designed to estimate the population cell density, prevalence, virulence gene signatures, and antibiotic resistance of Salmonella serovars from ready-to-eat shrimps. Ready-to-eat (RTE) shrimp samples were obtained from different open markets in Delta and Edo States, Nigeria from November 2016 to October 2017. We employed classical and polymerase chain reaction (PCR) approaches. The mean Salmonella species enumerated from the RTE shrimps ranged from -0.301 to 5.434 log10 cfu/g with 210/1440 (14.58%) of the RTE shrimp samples harbored Salmonella species. After biochemical and PCR approach, the identified isolates were Salmonella Enteritidis 11(24.4%), Salmonella Typhimurium 14 (31.1%) and other Salmonella spp. 20 (44.4%). All Salmonella species recovered were resistant to penicillin and erythromycin with 100% sensitivity to cefotaxime, cephalothin, colistin, and polymyxin B. Findings on the multidrug-resistant (MDR) profile showed that a total of 9/14 (64.3%) of Salmonella Enteritidis were resistant to 5 antibiotics which belongs to 3 different groups of antimicrobials with a multiple antibiotic-resistant (MAR) index of 0.21; while 3/11 (27.3%) of Salmonella Typhimurium were resistant to 11 antibiotics which belongs to 7 different groups of antimicrobials with a MAR index of 0.46. Virulence genes (spiA, sipB, invA, sif A, fljB, and sefA) and resistance genes (class 1 and II integrase, sul2, catB3, flor, tmp, bla TEM, strB, dfr1, and tetC) were also detected in some of the Salmonella species with variable percentage. This study indicates that ready-to-eat shrimps are probable reservoirs harboring Salmonella strains. The identified Salmonella isolates which exhibited virulence determinants and antibiotic-resistant coupled with high MAR index constitute a consumer health risk to the communities.
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Affiliation(s)
- Abeni Beshiru
- Applied Microbial Processes and Environmental Health Research Group, Department of Microbiology, Faculty of Life Sciences, University of Benin, Benin City, Nigeria
| | - Isoken H Igbinosa
- Department of Environmental Management and Toxicology, Faculty of Life Sciences, University of Benin, Benin City, Nigeria
| | - Etinosa O Igbinosa
- Applied Microbial Processes and Environmental Health Research Group, Department of Microbiology, Faculty of Life Sciences, University of Benin, Benin City, Nigeria.,Sustainable Development Office, University of Benin, Benin City, Nigeria
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10
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Sheng X, Wang W, Chen L, Zhang H, Zhang Y, Xu S, Xu H, Huang X. Mig-14 may contribute to Salmonella enterica serovar Typhi resistance to polymyxin B by decreasing the permeability of the outer-membrane and promoting the formation of biofilm. Int J Med Microbiol 2019; 309:143-150. [PMID: 30685290 DOI: 10.1016/j.ijmm.2019.01.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Revised: 12/29/2018] [Accepted: 01/13/2019] [Indexed: 12/26/2022] Open
Abstract
Mig-14 is essential for Salmonella enterica serovar Typhimurium (S. Typhimurium) resistance to antimicrobial peptides, including polymyxin B (PB). However, the molecular mechanism is as yet unknown. In this study, we demonstrated that mig-14 also played a crucial role in Salmonella enterica serovar Typhi (S. Typhi) resistance to PB. A series of genes associated with drug-resistance controlled by Mig-14 were identified in the presence of PB. Among which, ompF and ompC were up-regulated 8 and 6 folds in mig-14 mutant (Δmig-14) strains, respectively. Further, the deletion of ompF or/and ompC in Δmig-14 strains decreased their sensitivity to PB. Besides, the biofilm formation ability was reduced in Δmig-14 strains. Our results indicate that Mig-14 may contribute to PB resistance in S. Typhi by decreasing the permeability of the outer membrane and promoting biofilm formation.
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Affiliation(s)
- Xiumei Sheng
- Department of Central lab, The Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu, 212002, China; Department of Biochemistry and Molecular Biology, Jiangsu University School of Medicine, Zhenjiang, Jiangsu, 212013, China
| | - Weiwei Wang
- Department of Biochemistry and Molecular Biology, Jiangsu University School of Medicine, Zhenjiang, Jiangsu, 212013, China
| | - Long Chen
- Department of Biochemistry and Molecular Biology, Jiangsu University School of Medicine, Zhenjiang, Jiangsu, 212013, China
| | - Hong Zhang
- Department of Biochemistry and Molecular Biology, Jiangsu University School of Medicine, Zhenjiang, Jiangsu, 212013, China
| | - Ying Zhang
- Department of Biochemistry and Molecular Biology, Jiangsu University School of Medicine, Zhenjiang, Jiangsu, 212013, China
| | - Shungao Xu
- Department of Biochemistry and Molecular Biology, Jiangsu University School of Medicine, Zhenjiang, Jiangsu, 212013, China
| | - Huaxi Xu
- Department of Biochemistry and Molecular Biology, Jiangsu University School of Medicine, Zhenjiang, Jiangsu, 212013, China
| | - Xinxiang Huang
- Department of Biochemistry and Molecular Biology, Jiangsu University School of Medicine, Zhenjiang, Jiangsu, 212013, China.
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11
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Silva PLAPA, Goulart LR, Reis TFM, Mendonça EP, Melo RT, Penha VAS, Peres PABM, Hoepers PG, Beletti ME, Fonseca BB. Biofilm Formation in Different Salmonella Serotypes Isolated from Poultry. Curr Microbiol 2018; 76:124-129. [PMID: 30560366 DOI: 10.1007/s00284-018-1599-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 11/15/2018] [Indexed: 12/23/2022]
Abstract
Little is known about Salmonella biofilm assembly, making the prevention of the disease a challenge in the poultry production chain. The objective of the present study was then to evaluate biofilm formation from different serotypes of Salmonella spp. in both polystyrene plates and eggshells. Salmonella Gallinarum and S. Minnesota were both classified as producers of biofilms of moderate intensity. Interestingly, S. Gallinarum produces biofilm even though being a serotype without flagellum and not having the lux gene in its genome, suggesting that there might be other important structures and genes associated with biofilm formation. Regarding Enteritidis, Typhimurium, Typhimurium variant, and Heidelberg serotypes, despite having high counts, BFI (Biofilm Formation Index) showed low biofilm production, probably due to the scarcity of extracellular matrix produced by such strains. A turkey eggshell model was then used for S. Enteritidis and S. Heidelberg biofilm formation. The results from the microbial count and scanning electron microscopy showed that Salmonella serotypes were also able to generate biofilm in eggshells, suggesting the presence of biofilms in poultry producing farms, a main concern for the poultry production industry.
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Affiliation(s)
- Paula L A P A Silva
- Faculdade de Medicina Veterinária da Universidade Federal de Uberlândia, Uberlândia, Brazil
| | - Luiz Ricardo Goulart
- Instituto de Genética e Bioquímica da Universidade Federal de Uberlândia, Uberlândia, Brazil
| | - Thais F M Reis
- Faculdade de Medicina Veterinária da Universidade Federal de Uberlândia, Uberlândia, Brazil
| | - Eliane P Mendonça
- Faculdade de Medicina Veterinária da Universidade Federal de Uberlândia, Uberlândia, Brazil
| | - Roberta T Melo
- Faculdade de Medicina Veterinária da Universidade Federal de Uberlândia, Uberlândia, Brazil.
- Faculdade de Medicina Veterinária da Universidade de Uberaba, Uberaba, Brazil.
| | - Victor A S Penha
- Programa de Pós Graduação em Ecologia e Conservação da Universidade Federal do Paraná, Curitiba, PR, Brazil
| | - Phelipe A B M Peres
- Faculdade de Medicina Veterinária da Universidade Federal de Uberlândia, Uberlândia, Brazil
| | - Patrícia G Hoepers
- Faculdade de Medicina Veterinária da Universidade Federal de Uberlândia, Uberlândia, Brazil
- Animal Health Corporative Area, Foods S/A, Curitiba, PR, Brazil
| | - Marcelo E Beletti
- Faculdade de Medicina Veterinária da Universidade Federal de Uberlândia, Uberlândia, Brazil
| | - Belchiolina B Fonseca
- Faculdade de Medicina Veterinária da Universidade Federal de Uberlândia, Uberlândia, Brazil
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Molecular Detection, Virulence Genes, Biofilm Formation, and Antibiotic Resistance of Salmonella enterica Serotype enteritidis Isolated from Poultry and Clinical Samples. Jundishapur J Microbiol 2018. [DOI: 10.5812/jjm.69504] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
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13
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Aydin M, Carter-Conger J, Gao N, Gilmore DF, Ricke SC, Ahn S. Molecular identification of common Salmonella serovars using multiplex DNA sensor-based suspension array. Anal Bioanal Chem 2018; 410:2637-2646. [DOI: 10.1007/s00216-018-0938-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 01/25/2018] [Accepted: 02/02/2018] [Indexed: 12/15/2022]
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14
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Pal S, Dey S, Batabyal K, Banerjee A, Joardar SN, Samanta I, Isore DP. Characterization of Salmonella Gallinarum isolates from backyard poultry by polymerase chain reaction detection of invasion ( invA) and Salmonella plasmid virulence ( spvC) genes. Vet World 2017; 10:814-817. [PMID: 28831228 PMCID: PMC5553153 DOI: 10.14202/vetworld.2017.814-817] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 06/13/2017] [Indexed: 11/28/2022] Open
Abstract
Aim: The aim was to characterize Salmonella enterica serovar Gallinarum isolated from backyard poultry by polymerase chain reaction (PCR) detection of virulence genes invasion (invA) and Salmonella plasmid virulence C (spvC). Materials and Methods: Two strains of Salmonella serovar Gallinarum isolates used in this study were obtained from an outbreak of fowl typhoid in backyard Vanaraja fowl. PCR technique was used for detection of invA and spvC genes using standard methodology. The invA PCR product from one representative isolate was sequenced and compared with other related Salmonella serovars in GenBank data. Results: Salmonella Gallinarum produced expected amplicons of invA and spvC gene products. Nucleotide sequence of 285 bp invA gene was deposited in GenBank with accession no. KX788214. Sequence analysis of invA gene was found conserved in Salmonella serovars and demonstrated 100% homology with closely related serovars of Salmonella. Conclusion: Invasion gene (invA) was found to be highly conserved in Salmonella Gallinarum and highly similar with closely related serovars. The isolates also contained plasmid-mediated spvC gene indicating possession of virulence plasmid.
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Affiliation(s)
- Susmita Pal
- Department of Veterinary Microbiology, West Bengal University of Animal and Fishery Sciences, Belgachia, Kolkata - 700 037, West Bengal, India
| | - Samir Dey
- Department of Veterinary Microbiology, West Bengal University of Animal and Fishery Sciences, Belgachia, Kolkata - 700 037, West Bengal, India
| | - Kunal Batabyal
- Department of Veterinary Microbiology, West Bengal University of Animal and Fishery Sciences, Belgachia, Kolkata - 700 037, West Bengal, India
| | - Abhiroop Banerjee
- Department of Veterinary Microbiology, West Bengal University of Animal and Fishery Sciences, Belgachia, Kolkata - 700 037, West Bengal, India
| | - Siddhartha Narayan Joardar
- Department of Veterinary Microbiology, West Bengal University of Animal and Fishery Sciences, Belgachia, Kolkata - 700 037, West Bengal, India
| | - Indranil Samanta
- Department of Veterinary Microbiology, West Bengal University of Animal and Fishery Sciences, Belgachia, Kolkata - 700 037, West Bengal, India
| | - Devi Prasad Isore
- Department of Veterinary Microbiology, West Bengal University of Animal and Fishery Sciences, Belgachia, Kolkata - 700 037, West Bengal, India
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15
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Mehri I, Lajnef R, Rejab AB, Khessairi A, Cherif H, Ouzari H, Hassen A. Biofilms in bioremediation and wastewater treatment: characterization of bacterial community structure and diversity during seasons in municipal wastewater treatment process. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:3519-3530. [PMID: 27878485 DOI: 10.1007/s11356-016-8090-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 11/09/2016] [Indexed: 05/02/2023]
Abstract
The bacterial community structure and diversity were assessed at the scale of rotating biodisk procedure (RB) in a semi-industrial pilot plant. As well, the Salmonella community was particularly monitored, and the effects of ultraviolet (UV-C254) on the bacterial community were studied. The identification of dominant bacteria revealed the presence of beneficial and useful species that could play an important role in the process of wastewater purification. Several species as Enterobacter agglomerans, Cronobacter sakazakii, and Pantoea agglomerans known for their bioremediation activities were revealed in the majority of biofilm samples. Common detection of Salmonella community provides evidence that the RB system did not seriously affect Salmonella. Furthermore, the investigation on the (UV)-C254 inactivation of the whole bacterial community, in secondary treated wastewater, showed variable UV resistance results. No Salmonella detection was registered at a dose of around 1440 mW s cm-2 since a total disappearance of Salmonella was recorded.
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Affiliation(s)
- Ines Mehri
- Water Research and Technology Centre (CERTE), Borj Cédria Technology Park, P.O. BOX 273, Soliman, 8020, Tunisia
| | - Rim Lajnef
- Water Research and Technology Centre (CERTE), Borj Cédria Technology Park, P.O. BOX 273, Soliman, 8020, Tunisia
| | - Asma Ben Rejab
- Water Research and Technology Centre (CERTE), Borj Cédria Technology Park, P.O. BOX 273, Soliman, 8020, Tunisia
| | - Amel Khessairi
- Water Research and Technology Centre (CERTE), Borj Cédria Technology Park, P.O. BOX 273, Soliman, 8020, Tunisia
| | - Hanene Cherif
- Water Research and Technology Centre (CERTE), Borj Cédria Technology Park, P.O. BOX 273, Soliman, 8020, Tunisia
| | - Hadda Ouzari
- Laboratoire Microorganisme and Biomolécules Actives, Département de Biologie, Faculté des Sciences de Tunis, Campus Universitaire, 2092, Tunis, Tunisia
| | - Abdennaceur Hassen
- Water Research and Technology Centre (CERTE), Borj Cédria Technology Park, P.O. BOX 273, Soliman, 8020, Tunisia
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16
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Vinueza-Burgos C, Cevallos M, Ron-Garrido L, Bertrand S, De Zutter L. Prevalence and Diversity of Salmonella Serotypes in Ecuadorian Broilers at Slaughter Age. PLoS One 2016; 11:e0159567. [PMID: 27414038 PMCID: PMC4944992 DOI: 10.1371/journal.pone.0159567] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 07/04/2016] [Indexed: 11/18/2022] Open
Abstract
Salmonella is frequently found in poultry and represent an important source for human gastrointestinal infections worldwide. The aim of this study was to investigate the prevalence, genotypes and antimicrobial resistance of Salmonella serotypes in broilers from Ecuador. Caeca content from 388 at random selected broiler batches were collected in 6 slaughterhouses during 1 year and analyzed by the ISO 6579/Amd1 protocol for the isolation for Salmonella. Isolates were serotyped and genotypic variation was acceded by pulsed field gel electrophoresis. MIC values for sulfamethoxazole, gentamicin, ciprofloxacin, ampicillin, cefotaxime, ceftazidime, tetracycline, streptomycin, trimethropim, chloramphenicol, colistin, florfenicol, kanamycin and nalidixic acid were obtained. Presence of blaCTX-M, blaTEM, blaSHV and blaCMY; and mcr-1 plasmid genes was investigated in resistant strains to cefotaxime and colistin respectively. Prevalence at batch level was 16.0%. The most common serotype was S. Infantis (83.9%) followed by S. Enteritidis (14.5%) and S. Corvallis (1.6%). The pulsed field gel electrophoresis analysis showed that S. Corvallis, S. Enteritidis and S. Infantis isolates belonged to 1, 2 and 12 genotypes respectively. S. Infantis isolates showed high resistance rates to 12 antibiotics ranging from 57.7% (kanamycin) up to 98.1% (nalidixic acid and sulfamethoxazole). All S. Enteritidis isolates showed resistance to colistin. High multiresistant patterns were found for all the serotypes. The blaCTX-M gene was present in 33 S. Infantis isolates while mcr-1 was negative in 10 colistin resistant isolates. This study provides the first set of scientific data on prevalence and multidrug-resistant Salmonella coming from commercial poultry in Ecuador.
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Affiliation(s)
| | - María Cevallos
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Central del Ecuador, Quito, Ecuador
| | - Lenin Ron-Garrido
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Central del Ecuador, Quito, Ecuador
- Centro Internacional de Zoonosis, Quito, Ecuador
| | - Sophie Bertrand
- National Reference Centre for Salmonella and Shigella, Bacterial Diseases Division, Communicable and Infectious Diseases, Scientific Institute of Public Health (WIV-ISP), Brussels, Belgium
| | - Lieven De Zutter
- Department of Veterinary Public Health and Food Safety, Faculty of Veterinary, Ghent University, Merelbeke, Belgium
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Prasertsee T, Khantaprab N, Yamsakul P, Santiyanont P, Chokesajjawatee N, Patchanee P. Repetitive sequence-based PCR fingerprinting and the relationship of antimicrobial-resistance characteristics and corresponding genes among Salmonella strains from pig production. ASIAN PACIFIC JOURNAL OF TROPICAL DISEASE 2016. [DOI: 10.1016/s2222-1808(15)61054-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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