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Use of nano titanium hydroxide and nano zirconium hydroxide fixed filter paper for rapid detection of Staphylococcus aureus in dairy products by PCR without pre-enrichment. Food Control 2023. [DOI: 10.1016/j.foodcont.2023.109664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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2
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Li F, Ye Q, Chen M, Zhang J, Xue L, Wang J, Wu S, Zeng H, Gu Q, Zhang Y, Wei X, Ding Y, Wu Q. Multiplex PCR for the Identification of Pathogenic Listeria in Flammulina velutipes Plant Based on Novel Specific Targets Revealed by Pan-Genome Analysis. Front Microbiol 2021; 11:634255. [PMID: 33519795 PMCID: PMC7843925 DOI: 10.3389/fmicb.2020.634255] [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: 11/27/2020] [Accepted: 12/16/2020] [Indexed: 11/13/2022] Open
Abstract
Listeria spp. is an important foodborne disease agent, often found in the fresh mushroom (Flammulina velutipes) and its production environment. The aim of this study was to develop multiplex PCR for rapid identification of Listeria monocytogenes and Listeria ivanovii, and nonpathogenic Listeria in F. velutipes plants. Pan-genome analysis was first used to identify five novel Listeria-specific targets: one for the Listeria genus, one for L. monocytogenes, and three for L. ivanovii. Primers for the novel targets were highly specific in individual reactions. The detection limits were 103-104 CFU/mL, meeting the requirements of molecular detection. A mPCR assay for the identification of pathogenic Listeria, with primers targeting the novel genes specific for Listeria genus (LMOSLCC2755_0944), L. monocytogenes (LMOSLCC2755_0090), and L. ivanovii (queT_1) was then designed. The assay specificity was robustly verified by analyzing nonpathogenic Listeria and non-Listeria spp. strains. The determined detection limits were 2.0 × 103 CFU/mL for L. monocytogenes and 3.4 × 103 CFU/mL for L. ivanovii, for pure culture analysis. Further, the assay detected 7.6 × 104 to 7.6 × 100 CFU/10 g of pathogenic Listeria spiked into F. velutipes samples following 4-12 h enrichment. The assay feasibility was evaluated by comparing with a traditional culture-based method, by analyzing 129 samples collected from different F. velutipes plants. The prevalence of Listeria spp. and L. monocytogenes was 58.1% and 41.1%, respectively. The calculated κ factors for Listeria spp., L. monocytogenes, and L. ivanovii were 0.97, 0.97, and 1, respectively. The results of the novel mPCR assay were highly consistent with those of the culture-based method. The new assay thus will allow rapid, specific, and accurate detection and monitoring of pathogenic Listeria in food and its production environment.
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Affiliation(s)
- Fan Li
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China.,School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
| | - Qinghua Ye
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Moutong Chen
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Jumei Zhang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Liang Xue
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Juan Wang
- College of Food Science, South China Agricultural University, Guangzhou, China
| | - Shi Wu
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Haiyan Zeng
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Qihui Gu
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Youxiong Zhang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Xianhu Wei
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Yu Ding
- Department of Food Science and Technology, Jinan University, Guangzhou, China
| | - Qingping Wu
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
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Thapa SP, O'Leary M, Jacques MA, Gilbertson RL, Coaker G. Comparative Genomics to Develop a Specific Multiplex PCR Assay for Detection of Clavibacter michiganensis. PHYTOPATHOLOGY 2020; 110:556-566. [PMID: 31799900 DOI: 10.1094/phyto-10-19-0405-r] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Clavibacter michiganensis is a Gram-positive bacterial pathogen that proliferates in the xylem vessels of tomato, causing bacterial wilt and canker symptoms. Accurate detection is a crucial step in confirming outbreaks of bacterial canker and developing management strategies. A major problem with existing detection methods are false-positive and -negative results. Here, we report the use of comparative genomics of 37 diverse Clavibacter strains, including 21 strains sequenced in this study, to identify specific sequences that are C. michiganensis detection targets. Genome-wide phylogenic analyses revealed additional diversity within the genus Clavibacter. Pathogenic C. michiganensis strains varied in plasmid composition, highlighting the need for detection methods based on chromosomal targets. We utilized sequences of C. michiganensis-specific loci to develop a multiplex PCR-based diagnostic platform using two C. michiganensis chromosomal genes (rhuM and tomA) and an internal control amplifying both bacterial and plant DNA (16s ribosomal RNA). The multiplex PCR assay specifically detected C. michiganensis strains from a panel of 110 additional bacteria, including other Clavibacter spp. and bacterial pathogens of tomato. The assay was adapted to detect the presence of C. michiganensis in seed and tomato plant materials with high sensitivity and specificity. In conclusion, the described method represents a robust, specific tool for detection of C. michiganensis in tomato seed and infected plants.
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Affiliation(s)
- Shree P Thapa
- Department of Plant Pathology, University of California, Davis, CA, U.S.A
| | - Michael O'Leary
- Department of Plant Pathology, University of California, Davis, CA, U.S.A
| | - Marie-Agnès Jacques
- IRHS, Agrocampus-Ouest, INRA, Université d'Angers, SFR 4207 Quasav, Beaucouzé, France
| | | | - Gitta Coaker
- Department of Plant Pathology, University of California, Davis, CA, U.S.A
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Chiang YC, Wang HH, Ramireddy L, Chen HY, Shih CM, Lin CK, Tsen HY. Designing a biochip following multiplex polymerase chain reaction for the detection of Salmonella serovars Typhimurium, Enteritidis, Infantis, Hadar, and Virchow in poultry products. J Food Drug Anal 2017; 26:58-66. [PMID: 29389589 PMCID: PMC9332633 DOI: 10.1016/j.jfda.2016.11.019] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Revised: 11/03/2016] [Accepted: 11/21/2016] [Indexed: 11/29/2022] Open
Abstract
Salmonella-contaminated foods, especially poultry-derived foods (eggs, chicken meat), are the major source of salmonellosis. Not only in the European Union (EU), but also in the United States, Japan, and other countries, has salmonellosis been an issue of concern for food safety control agencies. In 2005, EU regulation 1003/2005 set a target for the control and reduction of five target Salmonella enterica serovars—S. Typhimurium, S. Enteritidis, S. Infantis, S. Hadar, and S. Virchow—in breeding flocks. Thus, a simple biochip for the rapid detection of any of these five Salmonella serovars in poultry products may be required. The objectives of this study were to design S. Virchow-specific primers and to develop a biochip for the simultaneous identification of all or any of these five Salmonella serovars in poultry and poultry products. Experimentally, we designed novel polymerase chain reaction (PCR) primers for the specific detection of S. Virchow, S. Infantis, and S. Hadar. The specificity of all these primers and two known primer sets for S. Typhimurium and S. Enteritidis was then confirmed under the same PCR conditions using 57 target strains and 112 nontarget Salmonella strains as well as 103 non-Salmonella strains. Following multiplex PCR, strains of any of these five Salmonella serovars could be detected by a chromogenic biochip deployed with DNA probes specific to these five Salmonella serovars. In comparison with the multiplex PCR methods, the biochip assay could improve the detection limit of each of the Salmonella serovars from N × 103 cfu/mL to N × 102 cfu/mL sample in either the pure culture or the chicken meat samples. With an 8-hour enrichment step, the detection limit could reach up to N × 100 cfu/mL.
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Affiliation(s)
- Yu-Cheng Chiang
- Department of Food Science and Technology, Hung Kuang University, Number 1018, Section 6, Taiwan Boulevard, Shalu District, Taichung City 43302, Taiwan, ROC.
| | - Hsien-Huang Wang
- DR. Chip Biotech, Science-Based Industrial Park, Chu-Nan, Miao-Li County 350, Taiwan, ROC
| | - Latha Ramireddy
- Department of Food Science and Technology, Hung Kuang University, Number 1018, Section 6, Taiwan Boulevard, Shalu District, Taichung City 43302, Taiwan, ROC
| | - Hsin-Yen Chen
- Department of Food Science and Technology, Hung Kuang University, Number 1018, Section 6, Taiwan Boulevard, Shalu District, Taichung City 43302, Taiwan, ROC
| | - Chia-Ming Shih
- Department of Food Science and Technology, Hung Kuang University, Number 1018, Section 6, Taiwan Boulevard, Shalu District, Taichung City 43302, Taiwan, ROC
| | - Chien-Ku Lin
- Department of Food Science and Technology, Hung Kuang University, Number 1018, Section 6, Taiwan Boulevard, Shalu District, Taichung City 43302, Taiwan, ROC
| | - Hau-Yang Tsen
- Department of Food Science and Technology, Hung Kuang University, Number 1018, Section 6, Taiwan Boulevard, Shalu District, Taichung City 43302, Taiwan, ROC.
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Tao T, Chen Q, Bie X, Lu F, Lu Z. Investigation on prevalence of Listeria spp. and Listeria monocytogenes in animal-derived foods by multiplex PCR assay targeting novel genes. Food Control 2017. [DOI: 10.1016/j.foodcont.2016.09.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Forghani F, Wei S, Oh DH. A Rapid Multiplex Real-Time PCR High-Resolution Melt Curve Assay for the Simultaneous Detection of Bacillus cereus, Listeria monocytogenes, and Staphylococcus aureus in Food. J Food Prot 2016; 79:810-5. [PMID: 27296430 DOI: 10.4315/0362-028x.jfp-15-428] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Three important foodborne pathogens, Bacillus cereus, Listeria monocytogenes, and Staphylococcus aureus, are of great concern for food safety. They may also coexist in food matrices and, in the case of B. cereus and S. aureus, the resulting illnesses can resemble each other owing to similar symptoms. Therefore, their simultaneous detection may have advantages in terms of cost savings and rapidity. Given this context, a rapid multiplex real-time PCR high-resolution melt curve assay for the simultaneous detection of these three pathogens in food was developed. The assay successfully detected B. cereus (gyrB), L. monocytogenes (hly), and S. aureus (nuc) in a single reaction, and the average melting temperatures were 76.23, 80.19, and 74.01°C, respectively. The application of SYTO9 dye and a slow melt curve analysis ramp rate (0.1°C/s) enabled the production of sharp, high-resolution melt curve peaks that were easily distinguishable from each other. The detection limit in food (milk, rice, and lettuce) was 3.7 × 10(3) CFU/g without an enrichment step and 3.7 × 10(1) CFU/g following the 10-h enrichment. Hence, the assay developed here is specific and sensitive, providing an efficient tool for implementation in food for the simultaneous detection of B. cereus, L. monocytogenes, and S. aureus .
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Affiliation(s)
- Fereidoun Forghani
- Department of Bioconvergence Science and Technology, College of Agriculture and Life Sciences, Kangwon National University, Chuncheon, Gangwon 200-701, Republic of Korea; Department of Microbiology, Immunology and Biochemistry, The University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Shuai Wei
- Department of Bioconvergence Science and Technology, College of Agriculture and Life Sciences, Kangwon National University, Chuncheon, Gangwon 200-701, Republic of Korea
| | - Deog-Hwan Oh
- Department of Bioconvergence Science and Technology, College of Agriculture and Life Sciences, Kangwon National University, Chuncheon, Gangwon 200-701, Republic of Korea.
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LI Y. Establishment and Application of a Visual DNA Microarray for the Detection of Food-borne Pathogens. ANAL SCI 2016; 32:215-8. [DOI: 10.2116/analsci.32.215] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Yongjin LI
- Zhejiang Provincial Key Laboratory of Aquatic Resources Conservation and Development, Key Laboratory of Aquatic Animal Genetic Breeding and Nutrition, Chinese Academy of Fishery Sciences, Huzhou University
- College of Life Science, Yangtze University
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Liu Z, Zhu J, Xia X, Wang L, Yang C, Li X. Development of a Loop-Mediated Isothermal Amplification Assay Based on lmo0460 Sequence for Detection of L
isteria monocytogenes. J Food Saf 2015. [DOI: 10.1111/jfs.12183] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Zhanmin Liu
- School of Life Sciences; Shanghai University; Shanghai 200444 China
| | - Jiachao Zhu
- School of Life Sciences; Shanghai University; Shanghai 200444 China
| | - Xueying Xia
- School of Life Sciences; Shanghai University; Shanghai 200444 China
| | - Lin Wang
- School of Life Sciences; Shanghai University; Shanghai 200444 China
| | - Cuiyun Yang
- Shanghai Entry-Exit Inspection and Quarantine Bureau; Shanghai China
| | - Xiaohong Li
- Shanghai Entry-Exit Inspection and Quarantine Bureau; Shanghai China
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Use of biotin-labeled IgY overcomes protein A interference in immunoassays involving Staphylococcus aureus antigens. ANN MICROBIOL 2015. [DOI: 10.1007/s13213-014-1029-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Babu L, Reddy P, Murali HS, Batra HV. Optimization and evaluation of a multiplex PCR for simultaneous detection of prominent foodborne pathogens of Enterobacteriaceae. ANN MICROBIOL 2013. [DOI: 10.1007/s13213-013-0622-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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