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Wei X, Chen W, Sun Q, Zhong Q, Yan Z, Zhou Q, Cao Y, Chen F, Zhang X. Epidemiological Investigations and Multi-locus Sequence Typing of Mycoplasma synoviae Isolates from Chicken Farms in China. Poult Sci 2022; 102:102006. [PMID: 37099877 PMCID: PMC10165133 DOI: 10.1016/j.psj.2022.102006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 06/01/2022] [Accepted: 06/06/2022] [Indexed: 11/19/2022] Open
Abstract
Mycoplasma synoviae (M. synoviae) is an important pathogen in poultry industry and has led to major economic losses. Understanding the epidemiology is crucial to improve control and eradication program of M. synoviae. In this study, 487 samples suspected with M. synoviae infection were collected from August 2020 to June 2021 in China. Among 487 samples, 324 samples were MS positive, the positive rate was 66.53%, and 104 strains were isolated from 324 positive samples. The multilocus sequence typing (MLST) method based on seven housekeeping genes was used to conduct genotyping 104 M. synoviae strains isolated, and the 104 isolates belonged to 8 sequence types (STs) after MLST genotyping, and ST-34 had the highest proportion. After BURST analysis, all 104 isolates were divided into group 12 with other 56 strains isolated from China. Phylogenetic tree constructed by neighbor-joining method showed that nearly all of Chinese isolates (160 isolates) clustered together and separated from other reference isolates (217 isolates) in the PubMLST database. In conclusion, this study suggested that the M. synoviae strains in China were highly similar and independent of abroad strains.
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Affiliation(s)
- Xiaona Wei
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510006, China; Guangdong Enterprise Key Laboratory for Animal Health and Environmental Control, Wen's Foodstuff Group Co. Ltd, Yunfu, 527439, China; Wen's Group Academy, Wen's Foodstuffs Group Co., Ltd., Xinxing, 527400, Guangdong, China
| | - Wei Chen
- College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Qianjin Sun
- College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Qian Zhong
- College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Zhuanqiang Yan
- Guangdong Enterprise Key Laboratory for Animal Health and Environmental Control, Wen's Foodstuff Group Co. Ltd, Yunfu, 527439, China; Wen's Group Academy, Wen's Foodstuffs Group Co., Ltd., Xinxing, 527400, Guangdong, China
| | - Qingfeng Zhou
- Guangdong Enterprise Key Laboratory for Animal Health and Environmental Control, Wen's Foodstuff Group Co. Ltd, Yunfu, 527439, China; Wen's Group Academy, Wen's Foodstuffs Group Co., Ltd., Xinxing, 527400, Guangdong, China
| | - Yongchang Cao
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Feng Chen
- College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Xiangbin Zhang
- College of Animal Science, South China Agricultural University, Guangzhou, 510642, China; Guangdong Enterprise Key Laboratory for Animal Health and Environmental Control, Wen's Foodstuff Group Co. Ltd, Yunfu, 527439, China; Wen's Group Academy, Wen's Foodstuffs Group Co., Ltd., Xinxing, 527400, Guangdong, China.
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Zhang X, Guo M, Xie D, Chen Y, Zhang C, Cao Y, Wu Y. Antibiotic resistance of Mycoplasma Synoviae strains isolated in China from 2016 to 2019. BMC Vet Res 2022; 18:1. [PMID: 34980113 PMCID: PMC8722301 DOI: 10.1186/s12917-021-03104-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Accepted: 12/09/2021] [Indexed: 01/24/2023] Open
Abstract
Background In the past decade, Mycoplasma synoviae (M. synoviae) infection has become widely prevalent in China, has caused serious economic losses and has become one of the most important diseases in the chicken industry. Medication is a general approach for the control of M. synoviae infection, but antibiotics are sometimes ineffective in clinical practice. To investigate the sensitivity of M. synoviae to antimicrobials commonly used in the treatment of M. synoviae infection, the antibiotic susceptibility of 32 M. synoviae strains isolated from China from 2016 to 2019 were determined using the minimum inhibitory concentration (MIC) method. Results All isolates had low MIC values for the combination of lincomycin and spectinomycin, pleuromutilin, and macrolides. However, the M. synoviae isolates displayed variance in MICs for doxycycline hydrochloride with a range of 0.25 to 8 μg/mL, and oxytetracycline hydrochloride with a range of 0.5 to 8 μg/mL. Three and one M. synoviae isolates showed intermediate MIC values to doxycycline hydrochloride and oxytetracycline hydrochloride, respectively. High MIC values for enrofloxacin were detected in all isolates with MICs ranging from 4 to 32 μg/mL. Furthermore, comparison of the parC QRDR identified a mutation at nucleotide position 254 (C254T) resulting in a Thr 85 Ile amino acid change in all M. synoviae isolates and the reference strain ATCC 25204 being resistant to enrofloxacin. Moreover, mutations at Glu 804 Gly and Thr 686 Ala of gyrA QRDR were identified in all M. synoviae isolates and ATCC 25204. The mutation in the QRDR of the parE gene resulted in amino acid changes at positions 197 (Pro to Ser) in 27/32 M. synoviae isolates. Conclusion Three nonsynonymous mutations in gyrA and parE were first identified to be related to enrofloxacin resistance. Our results showed that M. synoviae resistance to enrofloxacin is widespread.
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Affiliation(s)
- Xiaorong Zhang
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Mengjiao Guo
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Di Xie
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Yang Chen
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Chengcheng Zhang
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Yongzhong Cao
- Joint International Research Laboratory of Agriculture & Agri-Product Safety, Yangzhou University (JIRLAAPS), Yangzhou, 225009, Jiangsu, China
| | - Yantao Wu
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China. .,Joint International Research Laboratory of Agriculture & Agri-Product Safety, Yangzhou University (JIRLAAPS), Yangzhou, 225009, Jiangsu, China.
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Complete Genome Sequencing of the Attenuated Strain Mycoplasma synoviae 5-9. Microbiol Resour Announc 2021; 10:e0098121. [PMID: 34881981 PMCID: PMC8656387 DOI: 10.1128/mra.00981-21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Here, we present the complete genome sequence of Mycoplasma synoviae strain 5-9. Strain 5-9 was attenuated by chemical mutagenesis from a field strain isolated from egg breeders in Ningxia, China. It was completely sequenced and its genome annotated; it is presented with the relevant data as a potential vaccine candidate.
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