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De R, Zhang KX, Wang F, Zhou YT, Sun Y, Chen DM, Zhu RN, Guo Q, Liu S, Qu D, Qian Y, Zhao LQ. Human bocavirus 1 is a genuine pathogen for acute respiratory tract infection in pediatric patients determined by nucleic acid, antigen, and serology tests. Front Microbiol 2022; 13:932858. [PMID: 35966673 PMCID: PMC9372409 DOI: 10.3389/fmicb.2022.932858] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 06/28/2022] [Indexed: 11/24/2022] Open
Abstract
Background Human bocavirus 1 (HBoV1), first discovered in 2005, was positive in symptomatic and healthy children and co-detected with other respiratory viruses. It is a long journey to decisively demonstrate the unique viral pathogenic function of acute respiratory tract infection (ARTI) in pediatric patients. Methods Respiratory specimens collected from pediatric patients with ARTI from January 2017 to December 2021 were screened by a capillary electrophoresis-based multiplex PCR (CEMP) assay, then genotyped by PCR and sequencing for HBoV1. For the antigen test, a part of HBoV1 DNA positive nasopharyngeal aspirates (NPAs) was used as an antigen, while a rabbit anti-HBoV1 DR2 specific to HBoV1 was used as an antibody in the indirect-immunofluorescence assay (IFA). Finally, the levels of IgG specific to HBoV1 in acute and convalescent sera selected retrospectively from only HBoV1 DNA-positive patients were evaluated by IFA. Results Among 9,899 specimens, 681 were positive for HBoV1 DNA (6.88%, 681/9899), which included 336 positives only for HBoV1 (49.34%, 336/681) and 345 (50.66%, 345/681) positives also for other pathogens. In the antigen test, there were 37 among 47 NPAs determined as HBoV1 antigen-positive (78.72%, 37/47), including 18 (48.65%, 18/37) positives solely for HBoV1 DNA. Among 4 pediatric patients with both acute and convalescent sera, there was one positive for HBoV1 antigen (D8873) and 2 lack the antigen results (D1474 and D10792), which showed seroconversion with a ≥ 4-fold increase in IgG levels. Conclusions The combination results of nucleic acid, antigen, and serology tests answered that HBoV1 is a genuine pathogen for ARTI in pediatric patients.
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Affiliation(s)
- Ri De
- Laboratory of Virology, Beijing Key Laboratory of Etiology of Viral Diseases in Children, Capital Institute of Pediatrics, Beijing, China
- Graduate School of Peking Union Medical College, Beijing, China
| | - Ke-Xiang Zhang
- Laboratory of Virology, Beijing Key Laboratory of Etiology of Viral Diseases in Children, Capital Institute of Pediatrics, Beijing, China
- Graduate School of Peking Union Medical College, Beijing, China
| | - Fang Wang
- Laboratory of Virology, Beijing Key Laboratory of Etiology of Viral Diseases in Children, Capital Institute of Pediatrics, Beijing, China
| | - Yu-Tong Zhou
- Laboratory of Virology, Beijing Key Laboratory of Etiology of Viral Diseases in Children, Capital Institute of Pediatrics, Beijing, China
| | - Yu Sun
- Laboratory of Virology, Beijing Key Laboratory of Etiology of Viral Diseases in Children, Capital Institute of Pediatrics, Beijing, China
| | - Dong-Mei Chen
- Laboratory of Virology, Beijing Key Laboratory of Etiology of Viral Diseases in Children, Capital Institute of Pediatrics, Beijing, China
| | - Ru-Nan Zhu
- Laboratory of Virology, Beijing Key Laboratory of Etiology of Viral Diseases in Children, Capital Institute of Pediatrics, Beijing, China
| | - Qi Guo
- Laboratory of Virology, Beijing Key Laboratory of Etiology of Viral Diseases in Children, Capital Institute of Pediatrics, Beijing, China
| | - Shuang Liu
- Department of Intensive Care Unit, Affiliated Children's Hospital, Capital Institute of Pediatrics, Beijing, China
| | - Dong Qu
- Department of Intensive Care Unit, Affiliated Children's Hospital, Capital Institute of Pediatrics, Beijing, China
| | - Yuan Qian
- Laboratory of Virology, Beijing Key Laboratory of Etiology of Viral Diseases in Children, Capital Institute of Pediatrics, Beijing, China
| | - Lin-Qing Zhao
- Laboratory of Virology, Beijing Key Laboratory of Etiology of Viral Diseases in Children, Capital Institute of Pediatrics, Beijing, China
- Graduate School of Peking Union Medical College, Beijing, China
- *Correspondence: Lin-Qing Zhao
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Mohammed Ali Al-Harrasi M, Mohammed Al-Sadi A, Al-Tamimi AM, Al-Sabahi JN, Velazhahan R. In vitro production of antifungal phenolic acids by Hypomyces perniciosus, the causal agent of wet bubble disease of Agaricus bisporus. ALL LIFE 2021. [DOI: 10.1080/26895293.2021.1987340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Affiliation(s)
| | - Abdullah Mohammed Al-Sadi
- Department of Plant Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, Muscat, Oman
| | - Afrah Mohammed Al-Tamimi
- Central Instrumentation Laboratory, College of Agricultural and Marine Sciences, Sultan Qaboos University, Muscat, Oman
| | - Jamal Nasser Al-Sabahi
- Central Instrumentation Laboratory, College of Agricultural and Marine Sciences, Sultan Qaboos University, Muscat, Oman
| | - Rethinasamy Velazhahan
- Department of Plant Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, Muscat, Oman
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Kumar A, Sharma VP, Kumar S, Nath M. De novo genome sequencing of mycoparasite Mycogone perniciosa strain MgR1 sheds new light on its biological complexity. Braz J Microbiol 2021; 52:1545-1556. [PMID: 34138459 DOI: 10.1007/s42770-021-00535-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 05/18/2021] [Indexed: 10/21/2022] Open
Abstract
Mycogone perniciosa is a mycoparasite causing Wet Bubble Diseases (WBD) of Agaricus bisporus. In the present study, the whole genome of M. perniciosa strain MgR1 was sequenced using Illumina NextSeq500 platform. This sequencing generated 8.03 Gb of high-quality data and a draft genome of 39 Mb was obtained through a de novo assembly of the high-quality reads. The draft genome resulted into prediction of 9276 genes from the 1597 scaffolds. NCBI-based homology analysis revealed the identification of 8660 genes. Notably, non-redundant protein database analysis of the M. perniciosa strain MgR1 revealed its close relation with the Trichoderma arundinaceum. Moreover, ITS-based phylogenetic analysis showed the highest similarity of M. perniciosa strain MgR1 with Hypomyces perniciosus strain CBS 322.22 and Mycogone perniciosa strain PPRI 5784. Annotation of the 3917 genes of M. perniciosa strain MgR1 grouped in three major categories viz. biological process (2583 genes), cellular component (2013 genes), and molecular function (2919 genes). UniGene analysis identified 2967 unique genes in M. perniciosa strain MgR1. In addition, prediction of the secretory and pathogenicity-related genes based on the fungal database indicates that 1512 genes (16% of predicted genes) encode for secretory proteins. Moreover, out of 9276 genes, 1296 genes were identified as pathogenesis-related proteins matching with 51 fungal and bacterial genera. Overall, the key pathogenic genes such as lysine M protein domain genes, G protein, hydrophobins, and cytochrome P450 were also observed. The draft genome of MgR1 provides an understanding of pathogenesis of WBD in A. bisporus and could be utilized to develop novel management strategies.
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Affiliation(s)
- Anil Kumar
- Directorate of Mushroom Research, ICAR, Himachal Pradesh, Chambaghat, Solan, 173213, India.
| | - V P Sharma
- Directorate of Mushroom Research, ICAR, Himachal Pradesh, Chambaghat, Solan, 173213, India
| | - Satish Kumar
- Directorate of Mushroom Research, ICAR, Himachal Pradesh, Chambaghat, Solan, 173213, India
| | - Manoj Nath
- Directorate of Mushroom Research, ICAR, Himachal Pradesh, Chambaghat, Solan, 173213, India
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Gea FJ, Navarro MJ, Santos M, Diánez F, Carrasco J. Control of Fungal Diseases in Mushroom Crops while Dealing with Fungicide Resistance: A Review. Microorganisms 2021; 9:585. [PMID: 33809140 PMCID: PMC8000694 DOI: 10.3390/microorganisms9030585] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 03/08/2021] [Accepted: 03/09/2021] [Indexed: 12/04/2022] Open
Abstract
Mycoparasites cause heavy losses in commercial mushroom farms worldwide. The negative impact of fungal diseases such as dry bubble (Lecanicillium fungicola), cobweb (Cladobotryum spp.), wet bubble (Mycogone perniciosa), and green mold (Trichoderma spp.) constrains yield and harvest quality while reducing the cropping surface or damaging basidiomes. Currently, in order to fight fungal diseases, preventive measurements consist of applying intensive cleaning during cropping and by the end of the crop cycle, together with the application of selective active substances with proved fungicidal action. Notwithstanding the foregoing, the redundant application of the same fungicides has been conducted to the occurrence of resistant strains, hence, reviewing reported evidence of resistance occurrence and introducing unconventional treatments is worthy to pave the way towards the design of integrated disease management (IDM) programs. This work reviews aspects concerning chemical control, reduced sensitivity to fungicides, and additional control methods, including genomic resources for data mining, to cope with mycoparasites in the mushroom industry.
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Affiliation(s)
- Francisco J. Gea
- Centro de Investigación, Experimentación y Servicios del Champiñón, Quintanar del Rey, 16220 Cuenca, Spain; (F.J.G.); (M.J.N.)
| | - María J. Navarro
- Centro de Investigación, Experimentación y Servicios del Champiñón, Quintanar del Rey, 16220 Cuenca, Spain; (F.J.G.); (M.J.N.)
| | - Milagrosa Santos
- Departamento de Agronomía, Escuela Politécnica Superior, Universidad de Almería, 04120 Almería, Spain; (M.S.); (F.D.)
| | - Fernando Diánez
- Departamento de Agronomía, Escuela Politécnica Superior, Universidad de Almería, 04120 Almería, Spain; (M.S.); (F.D.)
| | - Jaime Carrasco
- Technological Research Center of the Champiñón de La Rioja (CTICH), 26560 Autol, Spain
- Department of Plant Sciences, University of Oxford, South Parks Road, Oxford OX1 2JD, UK
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