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Ríos-López AL, Dávila-Aviña J, González GM, Flores-Maldonado O. Antifungal and Antivirulence Activity of Vanillin and Tannic Acid Against Aspergillus fumigatus and Fusarium solani. Curr Microbiol 2024; 81:156. [PMID: 38656548 DOI: 10.1007/s00284-024-03678-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 03/26/2024] [Indexed: 04/26/2024]
Abstract
Aspergillus fumigatus and Fusarium solani infections have become severe health threat; both pathogens are considered a priority due to the increasing emergence of antifungal-resistant strains and high mortality rates. Therefore, the discovery of new therapeutic strategies has become crucial. In this study, we evaluated the antifungal and antivirulence effects of vanillin and tannic acid against Aspergillus fumigatus and Fusarium solani. The minimum inhibitory concentrations of the compounds were determined by the microdilution method in RPMI broth in 96-well microplates according to CLSI. Conidial germination, protease production, biofilm formation, and in vivo therapeutic efficacy assays were performed. The results demonstrated that vanillin and tannic acid had antifungal activity against Aspergillus fumigatus, while tannic acid only exhibited antifungal activity against Fusarium solani. We found that vanillin and tannic acid inhibited conidial germination and secreted protease production and biofilm formation of the fungal pathogens using sub-inhibitory concentrations. Besides, vanillin and tannic acid altered the fungal membrane permeability, and both compounds showed therapeutic effect against aspergillosis and fusariosis in an infection model in Galleria mellonella larvae. Our results highlight the antivirulence effect of vanillin and tannic acid against priority pathogenic fungi as a possible therapeutic alternative for human fungal infections.
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Affiliation(s)
- Ana L Ríos-López
- Departamento de Microbiología, Facultad de Medicina y Hospital Universitario "Dr. José Eleuterio González", Universidad Autónoma de Nuevo León, Av. Francisco I. Madero, Mitras Centro, 64460, Monterrey, Nuevo León, Mexico
| | - Jorge Dávila-Aviña
- Departamento de Microbiología e Inmunología, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolas, Nuevo León, Mexico
| | - Gloria M González
- Departamento de Microbiología, Facultad de Medicina y Hospital Universitario "Dr. José Eleuterio González", Universidad Autónoma de Nuevo León, Av. Francisco I. Madero, Mitras Centro, 64460, Monterrey, Nuevo León, Mexico
| | - Orlando Flores-Maldonado
- Departamento de Microbiología, Facultad de Medicina y Hospital Universitario "Dr. José Eleuterio González", Universidad Autónoma de Nuevo León, Av. Francisco I. Madero, Mitras Centro, 64460, Monterrey, Nuevo León, Mexico.
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2
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Caliskan ZC, Karahan G, Koray N, Gokcinar Y, Gülmez D, Arikan-Akdagli S, Unal S, Uzun O. Invasive fungal rhinosinusitis by Fusarium proliferatum/annulatum in a patient with acute myeloid leukemia: A case report and review of the literature. J Mycol Med 2024; 34:101461. [PMID: 38310659 DOI: 10.1016/j.mycmed.2024.101461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 01/21/2024] [Accepted: 01/22/2024] [Indexed: 02/06/2024]
Abstract
Antifungal prophylaxis with a mold-effective agent has led to a substantial decrease in invasive infections caused by Aspergillus spp. in the management of patients with acute myeloid leukemia undergoing induction chemotherapy. However, difficult-to-treat infections caused by other molds, such as Fusarium, Lomentospora, and Scedosporium species may still complicate the neutropenic period. Here, we present a case of a 23-year-old woman with acute myeloid leukemia who developed a breakthrough invasive fungal rhinosinusitis caused by Fusarium proliferatum/annulatum on posaconazole prophylaxis. The infection was diagnosed using clinical, microbiological, and radiological criteria and the isolate was identified using Matrix Assisted Lazer Desorption Ionization Time of Flight Mass Spectrometry (MALDI-TOF MS) and sequencing. We searched Pubmed with "Fusarium proliferatum", "Fusarium annulatum", "immunosuppression AND fusariosis", "rhinosinusitis AND Fusarium proliferatum" and summarized the English literature for similar rhinosinusitis cases infected with the same pathogen.
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Affiliation(s)
- Zeynep Cansu Caliskan
- Hacettepe University Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Ankara, Turkey.
| | - Gizem Karahan
- Hacettepe University Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Ankara, Turkey
| | - Neslihan Koray
- Hacettepe University Faculty of Medicine, Department of Internal Medicine, Ankara, Turkey
| | - Yasin Gokcinar
- Hacettepe University Faculty of Medicine, Department of Otorhinolaryngology, Ankara, Turkey
| | - Dolunay Gülmez
- Hacettepe University Faculty of Medicine, Department of Medical Microbiology, Ankara, Turkey
| | - Sevtap Arikan-Akdagli
- Hacettepe University Faculty of Medicine, Department of Medical Microbiology, Ankara, Turkey
| | - Serhat Unal
- Hacettepe University Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Ankara, Turkey
| | - Omrum Uzun
- Hacettepe University Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Ankara, Turkey
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3
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Samborska M, Wziątek A, Młynarczyk Ł, Dey S, Varghese N, Derwich K. Fusarium oxysporum disseminated infection in a teenage patient with a relapse of acute lymphoblastic leukemia - Case report and review of the literature. J Infect Chemother 2024; 30:258-262. [PMID: 37913869 DOI: 10.1016/j.jiac.2023.10.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 10/07/2023] [Accepted: 10/15/2023] [Indexed: 11/03/2023]
Abstract
Infections are still a significant cause of mortality in children with hematologic malignancies. Fusariosis is a relatively rare and opportunistic infection, which may present dangerous course and a poor prognosis. Below, we describe the fatal course of a 15-years old patient with a combined bone marrow and testicular relapse of ALL and multisystemic Fusariosis oxysporum infection with fulminant evolution. Despite aggressive therapy, which included multiagent antifungal treatment and surgical debridement, patient succumbed to the disease. The review of the literature was conducted and the need for early detection of fusarium symptoms was emphasized. The case encourages further research in the prevention and treatment of the illness.
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Affiliation(s)
- Magdalena Samborska
- Department of Pediatric Oncology, Hematology and Transplantology, Poznań, Poland; University of Medical Sciences, Poznań, Poland.
| | - Agnieszka Wziątek
- Department of Pediatric Oncology, Hematology and Transplantology, Poznań, Poland; University of Medical Sciences, Poznań, Poland
| | - Łukasz Młynarczyk
- Department of Pediatric Oncology, Hematology and Transplantology, Poznań, Poland; University of Medical Sciences, Poznań, Poland
| | - Shreya Dey
- Department of Pediatric Oncology, Hematology and Transplantology, Poznań, Poland; University of Medical Sciences, Poznań, Poland
| | - Noel Varghese
- Department of Pediatric Oncology, Hematology and Transplantology, Poznań, Poland; University of Medical Sciences, Poznań, Poland
| | - Katarzyna Derwich
- Department of Pediatric Oncology, Hematology and Transplantology, Poznań, Poland; University of Medical Sciences, Poznań, Poland
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Abstract
Invasive fusariosis is a serious invasive fungal disease, affecting immunocompetent and, more frequently, immunocompromised patients. Localized disease is the typical clinical form in immunocompetent patients. Immunocompromised hosts at elevated risk of developing invasive fusariosis are patients with acute leukemia receiving chemotherapeutic regimens for remission induction, and those undergoing allogeneic hematopoietic cell transplant. In this setting, the infection is usually disseminated with positive blood cultures, multiple painful metastatic skin lesions, and lung involvement. Currently available antifungal agents have poor in vitro activity against Fusarium species, but a clear-cut correlation between in vitro activity and clinical effectiveness does not exist. The outcome of invasive fusariosis is largely dependent on the resolution of immunosuppression, especially neutrophil recovery in neutropenic patients.
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Affiliation(s)
- Marcio Nucci
- University Hospital, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- Grupo Oncoclínicas, Rio de Janeiro, Brazil
| | - Elias Anaissie
- CTI Clinical Trial and Consulting, Cincinnati, Ohio, USA
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5
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Hoenigl M, Jenks JD, Egger M, Nucci M, Thompson GR. Treatment of Fusarium Infection of the Central Nervous System: A Review of Past Cases to Guide Therapy for the Ongoing 2023 Outbreak in the United States and Mexico. Mycopathologia 2023; 188:973-981. [PMID: 37653167 PMCID: PMC10687128 DOI: 10.1007/s11046-023-00790-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 08/21/2023] [Indexed: 09/02/2023]
Abstract
INTRODUCTION Fusariosis of the central nervous system (CNS) is extremely uncommon. Treatment and outcome data from previously published cases may provide some guidance in light of the ongoing fungal meningitis outbreak in 2023 involving Fusarium spp. in the United States and Mexico. METHODS We reviewed the published literature describing cases of invasive fusariosis of the (CNS) that included data on patient demographic characteristics, treatment, and outcome. RESULTS Twenty-six cases met inclusion criteria. The mean age was 36 years, 55% involved females, 60% had underlying hematologic malignancy, and another 16% were on immunosuppressants. The majority of infections were from Fusarium solani species complex. Overall 72% of patients died. The majority received monotherapy with amphotericin B, although some received voriconazole monotherapy or combination therapy with amphotericin B plus voriconazole with or without adjuvant surgery. Among the survivors, 3 received amphotericin B monotherapy, 2 voriconazole monotherapy, 1 combination therapy of both, and one surgery only. CONCLUSION The overall mortality rate in published cases of fusariosis of the CNS was high, although-unlike during the current outbreak-the preponderance of patients were severely immunocompromised. While historically the majority were treated with amphotericin B monotherapy, some recent patients were treated with voriconazole monotherapy or combination therapy with amphotericin B plus voriconazole. Current guidelines recommend monotherapy with voriconazole or lipid formulations of amphotericin B or combination of both for the treatment of invasive fusariosis, which is in line with the findings from our literature review and should be considered during the ongoing 2023 outbreak.
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Affiliation(s)
- Martin Hoenigl
- Division of Infectious Diseases, Department of Internal Medicine, ECMM Excellence Center for Medical Mycology, Medical University of Graz, Auenbruggerplatz 15, 8036, Graz, Austria.
- BioTechMed, Graz, Austria.
| | - Jeffrey D Jenks
- Durham County Department of Public Health, Durham, NC, USA
- Division of Infectious Diseases, Department of Medicine, Duke University, Durham, NC, USA
| | - Matthias Egger
- Division of Infectious Diseases, Department of Internal Medicine, ECMM Excellence Center for Medical Mycology, Medical University of Graz, Auenbruggerplatz 15, 8036, Graz, Austria
- BioTechMed, Graz, Austria
| | - Marcio Nucci
- Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil
- Grupo Oncoclinicas, Rio de Janeiro, RJ, Brazil
| | - George R Thompson
- University of California Davis Center for Valley Fever, Davis, CA, USA.
- Division of Infectious Diseases, Department of Internal Medicine, University of California Davis Medical Center, University of California-Davis Health, 1450 V Street, Suite G500, Sacramento, CA, USA.
- Department of Medical Microbiology and Immunology, University of California Davis, Davis, CA, USA.
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Risoli S, Sarrocco S, Terracciano G, Papetti L, Baroncelli R, Nali C. Isolation and characterization of Fusarium spp. From unhatched eggs of Caretta caretta in Tuscany (Italy). Fungal Biol 2023; 127:1321-1327. [PMID: 37993243 DOI: 10.1016/j.funbio.2023.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 08/25/2023] [Accepted: 08/28/2023] [Indexed: 11/24/2023]
Abstract
Sea Turtle Egg Fusariosis (STEF) is a worldwide emergent fungal disease affecting eggs and causing embryos mortality in turtle's nests such as those of Caretta caretta. It is caused by a complex of species belonging to Fusarium genus, particularly those included in the Fusarium Solani Species Complex (FSSC). During the samplings carried out in summer 2020 along the Tuscany coastlines (Italy), C. caretta eggs showed clinical signs resembling those caused by STEF. A total of 32 fungal isolates were obtained from lesioned eggs whose molecular characterization allowing identifying as belonging to FSSC / Neocosmospora spp., Fusarium oxysporum Species Complex (FOSC) / F. oxysporum and Fusarium nodosum, i.e., fungal genera and speciesincluding also well-known plant pathogens. Isolates inoculated on several plant hosts did not result in any pathogenic activity but F. nodosum causing, on wheat spikes, disease symptoms.This is the first time F. nodosum has been isolated from portions of eggs showing evident signs of fungal infection. This work represents the first report of Fusarium spp. isolated from C. caretta eggs showing lesions resembling those caused by STEF on Tuscan coast thus posing a significant concern to loggerhead sea turtle conservation also in this region.
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Affiliation(s)
- Samuele Risoli
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80 Pisa 56124, Italy; University School for Advanced Studies IUSS, Palazzo Del Broletto, Piazza Della Vittoria 15, Pavia, 27100 Italy
| | - Sabrina Sarrocco
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80 Pisa 56124, Italy.
| | - Giuliana Terracciano
- Istituto Zooprofilattico Sperimentale Delle Regioni Lazio e Toscana, SS Dell' Abetone e Del Brennero 4, Pisa 56123 Italy
| | - Luana Papetti
- tartAmare, Centro Recupero Tartarughe Marine, via Bramante n. 83 Marina di Grosseto, Italy
| | - Riccardo Baroncelli
- Department of Agricultural and Food Sciences (DISTAL), University of Bologna, Viale Giuseppe Fanin 42 Bologna 40127, Italy
| | - Cristina Nali
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80 Pisa 56124, Italy
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Winston DJ, Young PA, Schlamm HT, Schiller GJ. Fosmanogepix Therapy of Disseminated Fusarium Infection. Clin Infect Dis 2023; 77:848-850. [PMID: 37220752 DOI: 10.1093/cid/ciad309] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 05/19/2023] [Indexed: 05/25/2023] Open
Abstract
Invasive Fusarium infections cause high mortality. Fosmanogepix, a first-in-class antifungal agent, has potent activity against Fusarium. A patient with acute leukemia with invasive fusariosis, probably involving the central nervous system and caused by Fusarium lactis resistant to currently available antifungal agents, was cured of her infection with fosmanogepix. Fosmanogepix was well tolerated.
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Affiliation(s)
- Drew J Winston
- Division of Hematology-Oncology, Department of Medicine, Center for Health Sciences, University of California, Los Angeles, USA
| | - Patricia A Young
- Division of Hematology-Oncology, Department of Medicine, Center for Health Sciences, University of California, Los Angeles, USA
| | | | - Gary J Schiller
- Division of Hematology-Oncology, Department of Medicine, Center for Health Sciences, University of California, Los Angeles, USA
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Erami M, Aboutalebian S, Hashemi Hezaveh SJ, Matini AH, Momen-Heravi M, Ahsaniarani AH, Arani SS, Ganjizadeh M, Mirhendi H. Invasive Fusarium rhinosinusitis in COVID-19 patients: report of three cases with successful management. Front Cell Infect Microbiol 2023; 13:1247491. [PMID: 37780844 PMCID: PMC10538539 DOI: 10.3389/fcimb.2023.1247491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 09/01/2023] [Indexed: 10/03/2023] Open
Abstract
Invasive fungal rhinosinusitis (IFRS) is a life-threatening infection that can occur in immunocompromised patients, including those with COVID-19. Although Mucorales and Aspergillus species are the most common causes of IFRS, infections caused by other fungi such as Fusarium are rare. In this report, we present three cases of proven rhinosinusitis fusariosis that occurred during or after COVID-19 infection. The diagnosis was confirmed through microscopy, pathology, and culture, and species identification of the isolates was performed by DNA sequencing the entire ITS1-5.8 rRNA-ITS2 region and translation elongation factor 1-alpha (TEF-1α). Antifungal susceptibility testing was conducted according to CLSI guidelines. The causative agents were identified as Fusarium proliferatum, F. oxysporum + Aspergillus flavus, and F. solani/falciforme. Treatment involved the administration of antifungal medication and endoscopic sinus surgery to remove the affected mucosa, leading to the successful resolution of the infections. However, one patient experienced a recurrence of IFRS caused by A. flavus 15 months later. Early diagnosis and timely medical and surgical treatment are crucial in reducing mortality rates associated with invasive fusariosis. Additionally, the cautious use of corticosteroids in COVID-19 patients is highly recommended.
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Affiliation(s)
- Mahzad Erami
- Infectious Diseases Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Shima Aboutalebian
- Department of Medical Parasitology and Mycology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
- Mycology Reference Laboratory, Research Core Facilities Laboratory, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Seyed Jamal Hashemi Hezaveh
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Amir Hassan Matini
- Department of Pathology and Histology, School of Medicine, Shahid Beheshti Hospital, Kashan University of Medical Sciences, Kashan, Iran
| | - Mansooreh Momen-Heravi
- Department of Infectious Disease, School of Medicine, Shahid Beheshti Hospital, Kashan University of Medical Sciences, Kashan, Iran
| | - Amir Hossein Ahsaniarani
- Department of Otorhinolaryngology, School of Medicine, Matini Hospital, Kashan University of Medical Sciences, Kashan, Iran
| | - Shirin Shafaee Arani
- Department of Pathology and Histology, School of Medicine, Shahid Beheshti Hospital, Kashan University of Medical Sciences, Kashan, Iran
| | - Mohsen Ganjizadeh
- Infectious Diseases Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Hossein Mirhendi
- Department of Medical Parasitology and Mycology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
- Mycology Reference Laboratory, Research Core Facilities Laboratory, Isfahan University of Medical Sciences, Isfahan, Iran
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Furaijat G, Bettac L, Kächele M, Grüner B, Skrabal C, Barth TFE, Parlak M, Hagemann JB, Peters L, Walther G, Kersten J. An unusual presentation of invasive Fusarium aortitis in a patient who is immunocompromised: A case report. Int J Infect Dis 2023; 134:102-105. [PMID: 37279826 DOI: 10.1016/j.ijid.2023.05.069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 05/30/2023] [Accepted: 05/31/2023] [Indexed: 06/08/2023] Open
Abstract
Fusarium (F.) species are ubiquitous filamentous fungi that may cause various opportunistic infections, especially in patients who are immunocompromised. A rare manifestation of disseminated fusariosis affects the aortic valve and results in invasive aortitis, which poses a significant challenge for clinicians in diagnosis and treatment. Here, we report a case of a patient, aged 54 years, who is immunocompromised, presenting initially with Fusarium keratitis and chorioretinitis in both eyes and a new endovascular aortic mass. Positron emission tomography/computed tomography was performed, suggesting aortitis. Transoesophageal echocardiography and electrocardiogram-guided computed tomography-angiography confirmed a large intraluminal mass in the ascending aorta. The aortic mass and a part of the ascending aorta were resected surgically, and a filamentous fungus with the microscopic features of the genus Fusarium was isolated and later identified molecularly as F. petroliphilum. The course of the treatment was complicated by perioperative cerebral embolization and mesenteric ischemia. These complications could be attributed to a preoperatively existing occlusion of the superior and inferior mesenteric artery and a subtotal stenosis of the celiac trunk. This case report describes a rare manifestation of disseminated fusariosis, frequently characterized by protracted clinical courses with poor prognosis. Fusariosis may manifest at different sites at different times or persist as a long-lasting disease with reactivation. This case highlights the importance of the interdisciplinary approach for effectively treating invasive mycoses.
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Affiliation(s)
- Ghefar Furaijat
- University of Ulm, Department of Internal Medicine I, Ulm, Germany
| | - Lucas Bettac
- University of Ulm, Department of Internal Medicine I, Ulm, Germany
| | - Martin Kächele
- University of Ulm, Department of Internal Medicine I, Ulm, Germany
| | - Beate Grüner
- University of Ulm, Department of Internal Medicine III, Division of Infectious Diseases, Ulm, Germany
| | - Christian Skrabal
- University of Ulm, Department of Cardiac, Thoracic and Vascular Surgery, Ulm, Germany
| | | | - Melih Parlak
- University of Ulm, Department of Ophthalmology, Ulm, Germany
| | | | - Lynn Peters
- University of Ulm, Department of Internal Medicine III, Division of Infectious Diseases, Ulm, Germany
| | - Grit Walther
- German National Reference Center for Invasive Fungal Infections, Leibniz Institute for Natural Product Research, and Infection Biology - Hans Knöll Institute, Jena, Germany
| | - Johannes Kersten
- University of Ulm, Division of Sports and Rehabilitation Medicine, Ulm, Germany.
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10
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Abbara S, Freeman AF, Cohen JF, Leclerc-Mercier S, Sanchez L, Schlatter J, Cisternino S, Parker R, Cowen EW, Rouzaud C, Bougnoux ME, Lanternier F, Lionakis MS, Lortholary O. Primary Invasive Cutaneous Fusariosis in Patients with STAT3 Hyper-IgE Syndrome. J Clin Immunol 2023; 43:647-652. [PMID: 36504258 DOI: 10.1007/s10875-022-01404-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 10/31/2022] [Indexed: 12/14/2022]
Abstract
Dominant negative (DN) mutations in signal transducer and activator of transcription 3 (STAT3) are known to cause hyper-IgE syndrome, a rare primary immunodeficiency. STAT3 DN patients are prone to develop fungal infections, including chronic mucocutaneous candidiasis due to impaired IL-17-mediated immunity, and pulmonary aspergillosis. Despite having preserved phagocyte functions, STAT3 DN patients present connective tissue abnormalities and a defect in the immunological skin barrier. Fusarium species are ubiquitous molds, whose potential to infect humans depends on the host's innate and cellular immune status. Our aim was to describe four STAT3 DN patients with fusariosis confined to the skin. Medical records were reviewed and summarized. Four patients, aged 4, 11, 30, and 33 years, presented with chronic skin lesions which started in the extremities. Two patients had remote lesions, and none had systemic involvement. Skin biopsies showed mycelial threads with deep inflammatory-occasionally granulomatous-infiltrates, reaching the dermis; cultures grew Fusarium solani. Response to treatment was heterogeneous, often requiring multimodal therapies, including topical antifungal preparations. In this work, we describe primary invasive cutaneous fusariosis as a syndromic entity in four STAT3 DN patients.
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Affiliation(s)
- Salam Abbara
- Paris Cité University, Department of Infectious Diseases and Tropical Medicine, Necker-Enfants Malades Hospital, AP-HP, IHU Imagine, 149 Rue de Sèvres, 75015, Paris, France
| | - Alexandra F Freeman
- Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Jérémie F Cohen
- Inserm UMR 1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team, Research Centre for Epidemiology and Statistics (CRESS), Paris Cité University, Paris, France
- Department of General Pediatrics and Pediatric Infectious Diseases, Necker-Enfants Malades Hospital, AP-HP, Paris Cité University, 75015, Paris, France
| | - Stéphanie Leclerc-Mercier
- Reference Center for Genodermatoses (MAGEC Center), Department of Pathology, Necker-Enfants Malades Hospital, AP-HP, Paris Cité University, 75015, Paris, France
| | | | - Joel Schlatter
- Pharmacy Department, Necker-Enfants Malades Hospital, AP-HP, Paris Cité University, 75015, Paris, France
| | - Salvatore Cisternino
- Pharmacy Department, Necker-Enfants Malades Hospital, AP-HP, Paris Cité University, 75015, Paris, France
- INSERM UMRS-1144, Faculté de Pharmacie, Paris Cité University, F-75006, Paris, France
| | - Ruth Parker
- Clinical Center, National Institutes of Health, Bethesda, MD, USA
| | - Edward W Cowen
- Dermatology Consultation Service, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Claire Rouzaud
- Paris Cité University, Department of Infectious Diseases and Tropical Medicine, Necker-Enfants Malades Hospital, AP-HP, IHU Imagine, 149 Rue de Sèvres, 75015, Paris, France
| | - Marie Elisabeth Bougnoux
- Department of Mycology, Necker-Enfants Malades Hospital, AP-HP, Paris Cité University, 75015, Paris, France
- Unité Biologie Et Pathogénicité Fongiques, Institut Pasteur, USC 2019 INRA, 25, Rue du Docteur Roux, 75015, Paris, France
| | - Fanny Lanternier
- Paris Cité University, Department of Infectious Diseases and Tropical Medicine, Necker-Enfants Malades Hospital, AP-HP, IHU Imagine, 149 Rue de Sèvres, 75015, Paris, France
- Institut Pasteur, Molecular Mycology Unit, CNRS UMR 2000, 75015, Paris, France
| | - Michail S Lionakis
- Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA.
| | - Olivier Lortholary
- Paris Cité University, Department of Infectious Diseases and Tropical Medicine, Necker-Enfants Malades Hospital, AP-HP, IHU Imagine, 149 Rue de Sèvres, 75015, Paris, France.
- Institut Pasteur, Molecular Mycology Unit, CNRS UMR 2000, 75015, Paris, France.
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11
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Hudson O, Fulton JC, Dong AK, Dufault NS, Ali ME. Fusarium oxysporum f. sp. niveum Molecular Diagnostics Past, Present and Future. Int J Mol Sci 2021; 22:ijms22189735. [PMID: 34575897 PMCID: PMC8468614 DOI: 10.3390/ijms22189735] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 08/31/2021] [Accepted: 09/02/2021] [Indexed: 12/30/2022] Open
Abstract
Watermelon is an important commercial crop in the Southeastern United States and around the world. However, production is significantly limited by biotic factors including fusarium wilt caused by the hemibiotrophic fungus Fusarium oxysporum forma specialis niveum (Fon). Unfortunately, this disease has increased significantly in its presence over the last several decades as races have emerged which can overcome the available commercial resistance. Management strategies include rotation, improved crop resistance, and chemical control, but early and accurate diagnostics are required for appropriate management. Accurate diagnostics require molecular and genomic strategies due to the near identical genomic sequences of the various races. Bioassays exist for evaluating both the pathogenicity and virulence of an isolate but are limited by the time and resources required. Molecular strategies are still imperfect but greatly reduce the time to complete the diagnosis. This article presents the current state of the research surrounding races, both how races have been detected and diagnosed in the past and future prospects for improving the system of differentiation. Additionally, the available Fon genomes were analyzed using a strategy previously described in separate formae speciales avirulence gene association studies in Fusarium oxysporum races.
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Affiliation(s)
- Owen Hudson
- Department of Plant Pathology, University of Georgia, Tifton, GA 31793, USA; (O.H.); (A.K.D.)
| | - James C. Fulton
- Department of Plant Pathology, University of Florida, Gainesville, FL 32611, USA;
- Correspondence: (M.E.A.); (J.C.F.)
| | - Alexi K. Dong
- Department of Plant Pathology, University of Georgia, Tifton, GA 31793, USA; (O.H.); (A.K.D.)
| | - Nicholas S. Dufault
- Department of Plant Pathology, University of Florida, Gainesville, FL 32611, USA;
| | - Md Emran Ali
- Department of Plant Pathology, University of Georgia, Tifton, GA 31793, USA; (O.H.); (A.K.D.)
- Correspondence: (M.E.A.); (J.C.F.)
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12
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Oufensou S, Casalini S, Balmas V, Carta P, Chtioui W, Dettori MA, Fabbri D, Migheli Q, Delogu G. Prenylated Trans-Cinnamic Esters and Ethers against Clinical Fusarium spp.: Repositioning of Natural Compounds in Antimicrobial Discovery. Molecules 2021; 26:molecules26030658. [PMID: 33513915 PMCID: PMC7865625 DOI: 10.3390/molecules26030658] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 01/15/2021] [Accepted: 01/24/2021] [Indexed: 12/14/2022] Open
Abstract
Onychomycosis is a common nail infection mainly caused by species belonging to the F. oxysporum, F. solani, and F. fujikuroi species complexes. The aim of this study was to evaluate the in vitro susceptibility of six representative strains of clinically relevant Fusarium spp. toward a set of natural-occurring hydroxycinnamic acids and their derivatives with the purpose to develop naturally occurring products in order to cope with emerging resistance phenomena. By introducing a prenylated chain at one of the hydroxy groups of trans-cinnamic acids 1–3, ten prenylated derivatives (coded 4–13) were preliminarily investigated in solid Fusarium minimal medium (FMM). Minimal inhibitory concentration (MIC) and lethal dose 50 (LD50) values were then determined in liquid FMM for the most active selected antifungal p-coumaric acid 3,3′-dimethyl allyl ester 13, in comparison with the conventional fungicides terbinafine (TRB) and amphotericin B (AmB), through the quantification of the fungal growth. Significant growth inhibition was observed for prenylated derivatives 4–13, evidencing ester 13 as the most active. This compound presented MIC and LD50 values (62–250 µM and 7.8–125 µM, respectively) comparable to those determined for TRB and AmB in the majority of the tested pathogenic strains. The position and size of the prenylated chain and the presence of a free phenol OH group appear crucial for the antifungal activity. This work represents the first report on the activity of prenylated cinnamic esters and ethers against clinical Fusarium spp. and opens new avenues in the development of alternative antifungal compounds based on a drug repositioning strategy.
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Affiliation(s)
- Safa Oufensou
- Dipartimento di Agraria, Università degli Studi di Sassari, Via E. De Nicola 9, 07100 Sassari, Italy; (S.O.); (S.C.); (V.B.); (W.C.); (Q.M.)
| | - Stefano Casalini
- Dipartimento di Agraria, Università degli Studi di Sassari, Via E. De Nicola 9, 07100 Sassari, Italy; (S.O.); (S.C.); (V.B.); (W.C.); (Q.M.)
| | - Virgilio Balmas
- Dipartimento di Agraria, Università degli Studi di Sassari, Via E. De Nicola 9, 07100 Sassari, Italy; (S.O.); (S.C.); (V.B.); (W.C.); (Q.M.)
| | - Paola Carta
- Istituto CNR di Chimica Biomolecolare, Traversa La Crucca 3, 07100 Sassari, Italy; (P.C.); (D.F.); (G.D.)
| | - Wiem Chtioui
- Dipartimento di Agraria, Università degli Studi di Sassari, Via E. De Nicola 9, 07100 Sassari, Italy; (S.O.); (S.C.); (V.B.); (W.C.); (Q.M.)
| | - Maria A. Dettori
- Istituto CNR di Chimica Biomolecolare, Traversa La Crucca 3, 07100 Sassari, Italy; (P.C.); (D.F.); (G.D.)
- Correspondence: ; Tel.: +39-079-284-1224
| | - Davide Fabbri
- Istituto CNR di Chimica Biomolecolare, Traversa La Crucca 3, 07100 Sassari, Italy; (P.C.); (D.F.); (G.D.)
| | - Quirico Migheli
- Dipartimento di Agraria, Università degli Studi di Sassari, Via E. De Nicola 9, 07100 Sassari, Italy; (S.O.); (S.C.); (V.B.); (W.C.); (Q.M.)
- Nucleo di Ricerca sulla Desertificazione, Università degli Studi di Sassari, Via E. De Nicola 9, 07100 Sassari, Italy
| | - Giovanna Delogu
- Istituto CNR di Chimica Biomolecolare, Traversa La Crucca 3, 07100 Sassari, Italy; (P.C.); (D.F.); (G.D.)
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13
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Zhou C, Mao J, Zhao H, Rao Z, Zhang B. Monitoring and predicting Fusarium wilt disease in cucumbers based on quantitative analysis of kinetic imaging of chlorophyll fluorescence. Appl Opt 2020; 59:9118-9125. [PMID: 33104622 DOI: 10.1364/ao.399320] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 09/17/2020] [Indexed: 05/22/2023]
Abstract
Cucumber (Cucumis sativus L.) is a widely cultivated and economically profitable crop. However, Fusarium wilt disease can seriously affect cucumber yields, as it is difficult to prevent and eliminate. Therefore, a reliable method is needed for the rapid and early detection of Fusarium infection in cucumbers, which could be provided via the kinetic imaging of chlorophyll fluorescence (ChlF). In this study, ChlF imaging and kinetic parameters were utilized with gray and radial basis function models to monitor cucumber Fusarium wilt disease. The results indicate that the disease can be detected and predicted using this imaging technique before symptoms become visible.
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14
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Rychlik A, Gonkowski S, Kaczmar E, Obremski K, Calka J, Makowska K. The T2 Toxin Produced by Fusarium spp. Impacts Porcine Duodenal Nitric Oxide Synthase (nNOS)-Positive Nervous Structures-The Preliminary Study. Int J Mol Sci 2020; 21:ijms21145118. [PMID: 32698434 PMCID: PMC7404315 DOI: 10.3390/ijms21145118] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/05/2020] [Accepted: 07/15/2020] [Indexed: 01/12/2023] Open
Abstract
T2 toxin synthetized by Fusarium spp. negatively affects various internal organs and systems, including the digestive tract and the immune, endocrine, and nervous systems. However, knowledge about the effects of T2 on the enteric nervous system (ENS) is still incomplete. Therefore, during the present experiment, the influence of T2 toxin with a dose of 12 µg/kg body weight (b.w.)/per day on the number of enteric nervous structures immunoreactive to neuronal isoform nitric oxide synthase (nNOS—used here as a marker of nitrergic neurons) in the porcine duodenum was studied using the double immunofluorescence method. Under physiological conditions, nNOS-positive neurons amounted to 38.28 ± 1.147%, 38.39 ± 1.244%, and 35.34 ± 1.151 of all enteric neurons in the myenteric (MP), outer submucous (OSP), and inner submucous (ISP) plexuses, respectively. After administration of T2 toxin, an increase in the number of these neurons was observed in all types of the enteric plexuses and nNOS-positive cells reached 46.20 ± 1.453% in the MP, 45.39 ± 0.488% in the OSP, and 44.07 ± 0.308% in the ISP. However, in the present study, the influence of T2 toxin on the intramucosal and intramuscular nNOS-positive nerves was not observed. The results obtained in the present study indicate that even low doses of T2 toxin are not neutral for living organisms because they may change the neurochemical characterization of the enteric neurons.
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Affiliation(s)
- Andrzej Rychlik
- Department of Clinical Diagnostics, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 14, 10-957 Olsztyn, Poland; (A.R.); (E.K.)
| | - Slawomir Gonkowski
- Department of Clinical Physiology, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 13, 10-957 Olsztyn, Poland; (S.G.); (J.C.)
| | - Ewa Kaczmar
- Department of Clinical Diagnostics, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 14, 10-957 Olsztyn, Poland; (A.R.); (E.K.)
| | - Kazimierz Obremski
- Department of Veterinary Prevention and Feed Hygiene, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego Str. 13, 10-718 Olsztyn, Poland;
| | - Jaroslaw Calka
- Department of Clinical Physiology, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 13, 10-957 Olsztyn, Poland; (S.G.); (J.C.)
| | - Krystyna Makowska
- Department of Clinical Diagnostics, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 14, 10-957 Olsztyn, Poland; (A.R.); (E.K.)
- Correspondence: ; Fax: +48-95234460
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15
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Abstract
We hereby report a successfully salvaged eye due to mycotic keratitis by Cylindrocarpon lichenicola in a 60-year-old female from Kasaragod (Kerala). The patient came with a history of pain, photophobia and decreased vision of the right eye. The microbiological investigations of the corneal scraping revealed C. lichenicola. C. lichenicola is a soil saprophyte. Since the ulcer worsened paracentesis followed by therapeutic keratoplasty and adjunct therapy with natamycin drops, voriconazole drops and oral ketoconazole was given. We stress that evidence-based timely medical and surgical intervention helped in the restoration of the vision in an infected eye.
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Affiliation(s)
- M Suchitra Shenoy
- Department of Microbiology, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Rajesh R Nayak
- Department of Ophthalmology, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Vijay Pai
- Department of Ophthalmology, K.S. Hegde Medical Academy, Mangalore, Karnataka, India
| | - K Archana Bhat
- Department of Microbiology, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, Karnataka, India
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16
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Brown T, Millar Z, Evans D, Pham PH, LePage V, Lumsden JS. Fusarium solani haplotype 12-b and aortic and branchial arteritis in Hippocampus erectus Perry. J Fish Dis 2020; 43:301-304. [PMID: 31770818 DOI: 10.1111/jfd.13099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 04/08/2019] [Accepted: 04/09/2019] [Indexed: 06/10/2023]
Affiliation(s)
- Tori Brown
- Fish Pathology Laboratory, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - Zach Millar
- Fish Pathology Laboratory, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - Drake Evans
- Fish Pathology Laboratory, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - Phuc H Pham
- Fish Pathology Laboratory, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | | | - John S Lumsden
- Fish Pathology Laboratory, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
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17
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Chen L, Wu Q, He W, He T, Wu Q, Miao Y. Combined De Novo Transcriptome and Metabolome Analysis of Common Bean Response to Fusarium oxysporum f. sp. phaseoli Infection. Int J Mol Sci 2019; 20:ijms20246278. [PMID: 31842411 PMCID: PMC6941151 DOI: 10.3390/ijms20246278] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2019] [Revised: 12/09/2019] [Accepted: 12/11/2019] [Indexed: 12/17/2022] Open
Abstract
Molecular changes elicited by common bean (Phaseolus vulgaris L.) in response to Fusarium oxysproum f. sp. Phaseoli (FOP) remain elusive. We studied the changes in root metabolism during common bean–FOP interactions using a combined de novo transcriptome and metabolome approach. Our results demonstrated alterations of transcript levels and metabolite concentrations in common bean roots 24 h post infection as compared to control. The transcriptome and metabolome responses in common bean roots revealed significant changes in structural defense i.e., cell-wall loosening and weakening characterized by hyper accumulation of cell-wall loosening and degradation related transcripts. The levels of pathogenesis related genes were significantly higher upon FOP inoculation. Interestingly, we found the involvement of glycosylphosphatidylinositol- anchored proteins (GPI-APs) in signal transduction in response to FOP infection. Our results confirmed that hormones have strong role in signaling pathways i.e., salicylic acid, jasmonate, and ethylene pathways. FOP induced energy metabolism and nitrogen mobilization in infected common bean roots as compared to control. Importantly, the flavonoid biosynthesis pathway was the most significantly enriched pathway in response to FOP infection as revealed by the combined transcriptome and metabolome analysis. Overall, the observed modulations in the transcriptome and metabolome flux as outcome of several orchestrated molecular events are determinant of host’s role in common bean–FOP interactions.
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Affiliation(s)
- Limin Chen
- Integrated Plant Protection Center, Lishui Institute of Agricultural and Forestry Sciences, 827 Liyang Stress, Lishui 323000, China
| | - Quancong Wu
- Integrated Plant Protection Center, Lishui Institute of Agricultural and Forestry Sciences, 827 Liyang Stress, Lishui 323000, China
- Correspondence: ; Tel.: +86-578-2028375; Fax: +86-578-2173070
| | - Weimin He
- Integrated Plant Protection Center, Lishui Institute of Agricultural and Forestry Sciences, 827 Liyang Stress, Lishui 323000, China
| | - Tianjun He
- Integrated Plant Protection Center, Lishui Institute of Agricultural and Forestry Sciences, 827 Liyang Stress, Lishui 323000, China
| | - Qianqian Wu
- School of Agricultural and Food Science, Zhejiang A&F University, Hangzhou 311300, China
| | - Yeminzi Miao
- Integrated Plant Protection Center, Lishui Institute of Agricultural and Forestry Sciences, 827 Liyang Stress, Lishui 323000, China
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18
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Tralamazza SM, Rocha LO, Oggenfuss U, Corrêa B, Croll D. Complex Evolutionary Origins of Specialized Metabolite Gene Cluster Diversity among the Plant Pathogenic Fungi of the Fusarium graminearum Species Complex. Genome Biol Evol 2019; 11:3106-3122. [PMID: 31609418 PMCID: PMC6836718 DOI: 10.1093/gbe/evz225] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/10/2019] [Indexed: 12/26/2022] Open
Abstract
Fungal genomes encode highly organized gene clusters that underlie the production of specialized (or secondary) metabolites. Gene clusters encode key functions to exploit plant hosts or environmental niches. Promiscuous exchange among species and frequent reconfigurations make gene clusters some of the most dynamic elements of fungal genomes. Despite evidence for high diversity in gene cluster content among closely related strains, the microevolutionary processes driving gene cluster gain, loss, and neofunctionalization are largely unknown. We analyzed the Fusarium graminearum species complex (FGSC) composed of plant pathogens producing potent mycotoxins and causing Fusarium head blight on cereals. We de novo assembled genomes of previously uncharacterized FGSC members (two strains of F. austroamericanum, F. cortaderiae, and F. meridionale). Our analyses of 8 species of the FGSC in addition to 15 other Fusarium species identified a pangenome of 54 gene clusters within FGSC. We found that multiple independent losses were a key factor generating extant cluster diversity within the FGSC and the Fusarium genus. We identified a modular gene cluster conserved among distantly related fungi, which was likely reconfigured to encode different functions. We also found strong evidence that a rare cluster in FGSC was gained through an ancient horizontal transfer between bacteria and fungi. Chromosomal rearrangements underlying cluster loss were often complex and were likely facilitated by an enrichment in specific transposable elements. Our findings identify important transitory stages in the birth and death process of specialized metabolism gene clusters among very closely related species.
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Affiliation(s)
- Sabina Moser Tralamazza
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, Brazil
- Laboratory of Evolutionary Genetics, Institute of Biology, University of Neuchatel, Switzerland
| | - Liliana Oliveira Rocha
- Food Engineering Faculty, Department of Food Science, University of Campinas, Av. Monteiro Lobato, Brazil
| | - Ursula Oggenfuss
- Laboratory of Evolutionary Genetics, Institute of Biology, University of Neuchatel, Switzerland
| | - Benedito Corrêa
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, Brazil
| | - Daniel Croll
- Laboratory of Evolutionary Genetics, Institute of Biology, University of Neuchatel, Switzerland
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Oufensou S, Scherm B, Pani G, Balmas V, Fabbri D, Dettori MA, Carta P, Malbrán I, Migheli Q, Delogu G. Honokiol, magnolol and its monoacetyl derivative show strong anti-fungal effect on Fusarium isolates of clinical relevance. PLoS One 2019; 14:e0221249. [PMID: 31483823 PMCID: PMC6726233 DOI: 10.1371/journal.pone.0221249] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 08/04/2019] [Indexed: 12/19/2022] Open
Abstract
The antifungal activity of magnolol and honokiol, two naturally occurring hydroxylated biphenyls, and of their synthetic derivatives was evaluated on a collection of representative isolates of Fusarium oxysporum, F. solani and F. verticillioides of clinical and ecological concern. The tested compounds were proposed as a ‘natural’ alternative to conventional fungicides, even though a larger range of concentrations (5–400 μg/ml) was applied. The activity of magnolol and honokiol was compared with that of terbinafine (0.1–10 μg/ml), and fluconazole (1–50 μg/ml), two fungicides widely used in treating fungal infections on humans. Magnolol showed similar fungicidal activity compared to fluconazole, whereas honokiol was more effective in inhibiting mycelium growth compared to this fungicide on all tested clinical Fusarium spp. isolates. Compared to terbinafine, honokiol showed similar antifungal activity when tested on clinical F. solani isolates, whereas magnolol was less effective at all selected concentrations (5–400 μg/ml). The different position of the phenol-OH group, as well as its protection, explain different in vitro activities between magnolol, honokiol, and their derivatives. Furthermore, magnolol showed mycelium dry weight reduction at a concentration of 0.5 mM when tested on a set of agricultural isolates of Fusaria, leading to complete inhibition of some of them. Magnolol and honokiol are proposed as efficient and safe candidates for treating clinically relevant Fusaria.
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Affiliation(s)
- Safa Oufensou
- Dipartimento di Agraria, Sezione di Patologia Vegetale ed Entomologia and Unità di Ricerca Istituto Nazionale di Biostrutture e Biosistemi, Università degli Studi di Sassari, Viale Italia, Sassari, Italy
| | - Barbara Scherm
- Dipartimento di Agraria, Sezione di Patologia Vegetale ed Entomologia and Unità di Ricerca Istituto Nazionale di Biostrutture e Biosistemi, Università degli Studi di Sassari, Viale Italia, Sassari, Italy
| | - Giovanna Pani
- Dipartimento di Agraria, Sezione di Patologia Vegetale ed Entomologia and Unità di Ricerca Istituto Nazionale di Biostrutture e Biosistemi, Università degli Studi di Sassari, Viale Italia, Sassari, Italy
| | - Virgilio Balmas
- Dipartimento di Agraria, Sezione di Patologia Vegetale ed Entomologia and Unità di Ricerca Istituto Nazionale di Biostrutture e Biosistemi, Università degli Studi di Sassari, Viale Italia, Sassari, Italy
- * E-mail: (VB);,(GD)
| | - Davide Fabbri
- Istituto CNR di Chimica Biomolecolare, Traversa La Crucca, Sassari, Italy
| | | | - Paola Carta
- Istituto CNR di Chimica Biomolecolare, Traversa La Crucca, Sassari, Italy
| | - Ismael Malbrán
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)—Centro de Investigaciones de Fitopatología (CIDEFI-CIC-UNLP), Facultad de Ciencias Agrarias y Forestales, Universidad Nacional de La Plata, La Plata–Buenos Aires, Argentina
| | - Quirico Migheli
- Dipartimento di Agraria, Sezione di Patologia Vegetale ed Entomologia and Unità di Ricerca Istituto Nazionale di Biostrutture e Biosistemi, Università degli Studi di Sassari, Viale Italia, Sassari, Italy
| | - Giovanna Delogu
- Istituto CNR di Chimica Biomolecolare, Traversa La Crucca, Sassari, Italy
- * E-mail: (VB);,(GD)
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20
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Septiani P, Lanubile A, Stagnati L, Busconi M, Nelissen H, Pè ME, Dell'Acqua M, Marocco A. Unravelling the genetic basis of Fusarium seedling rot resistance in the MAGIC maize population: novel targets for breeding. Sci Rep 2019; 9:5665. [PMID: 30952942 PMCID: PMC6451006 DOI: 10.1038/s41598-019-42248-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 03/26/2019] [Indexed: 12/16/2022] Open
Abstract
Fungal infection by Fusarium verticillioides is cause of prevalent maize disease leading to substantial reductions in yield and grain quality worldwide. Maize resistance to the fungus may occur at different developmental stages, from seedling to maturity. The breeding of resistant maize genotypes may take advantage of the identification of quantitative trait loci (QTL) responsible for disease resistance already commenced at seedling level. The Multi-parent Advance Generation Intercross (MAGIC) population was used to conduct high-definition QTL mapping for Fusarium seedling rot (FSR) resistance using rolled towel assay. Infection severity level, seedling weight and length were measured on 401 MAGIC maize recombinant inbred lines (RILs). QTL mapping was performed on reconstructed RIL haplotypes. One-fifth of the MAGIC RILs were resistant to FSR and 10 QTL were identified. For FSR, two QTL were detected at 2.8 Mb and 241.8 Mb on chromosome 4, and one QTL at 169.6 Mb on chromosome 5. Transcriptomic and sequencing information generated on the MAGIC founder lines was used to guide the identification of eight candidate genes within the identified FSR QTL. We conclude that the rolled towel assay applied to the MAGIC maize population provides a fast and cost-effective method to identify QTL and candidate genes for early resistance to F. verticillioides in maize.
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Affiliation(s)
- Popi Septiani
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Pisa, 56127, Italy
| | - Alessandra Lanubile
- Department of Sustainable Crop Production, Università Cattolica del Sacro Cuore, Piacenza, 29122, Italy
| | - Lorenzo Stagnati
- Department of Sustainable Crop Production, Università Cattolica del Sacro Cuore, Piacenza, 29122, Italy
| | - Matteo Busconi
- Department of Sustainable Crop Production, Università Cattolica del Sacro Cuore, Piacenza, 29122, Italy
| | - Hilde Nelissen
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, B-9052, Belgium
- VIB Centre for Plant Systems Biology, Ghent, B-9052, Belgium
| | - Mario Enrico Pè
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Pisa, 56127, Italy
| | - Matteo Dell'Acqua
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Pisa, 56127, Italy
| | - Adriano Marocco
- Department of Sustainable Crop Production, Università Cattolica del Sacro Cuore, Piacenza, 29122, Italy.
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21
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Khan Z, Ahmad S, Alfouzan W, Joseph L, Varghese S. Demonstration of Adventitious Sporulation in Fusarium Petroliphilum Onychomycosis. Mycopathologia 2019; 184:303-308. [PMID: 30734128 DOI: 10.1007/s11046-019-0318-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 01/11/2019] [Indexed: 11/29/2022]
Abstract
Fusarium petroliphilum is a recently described species within the Fusarium solani species complex. Some strains of Fusarium species are capable of forming yeast-like structures in tissue as well as in culture through a process known as "adventitious sporulation." Here, we describe the formation of these yeast-like reproductive structures in infected nail tissue obtained from a case of onychomycosis. These structures were also observed in culture grown on RPMI 1640 agar supplemented with 2% glucose. The isolate was resistant to azoles and echinocandins. To the best of our knowledge, this is the first report describing adventitious sporulation in F. petroliphilum and its etiologic role in onychomycosis.
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Affiliation(s)
- Ziauddin Khan
- Department of Microbiology, Faculty of Medicine, Kuwait University, P. O. Box 24923, 1311, Safat, Kuwait.
| | - Suhail Ahmad
- Department of Microbiology, Faculty of Medicine, Kuwait University, P. O. Box 24923, 1311, Safat, Kuwait
| | - Wadha Alfouzan
- Department of Microbiology, Faculty of Medicine, Kuwait University, P. O. Box 24923, 1311, Safat, Kuwait
| | - Leena Joseph
- Department of Microbiology, Faculty of Medicine, Kuwait University, P. O. Box 24923, 1311, Safat, Kuwait
| | - Soumya Varghese
- Department of Microbiology, Faculty of Medicine, Kuwait University, P. O. Box 24923, 1311, Safat, Kuwait
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Ilić B, Unković N, Knežević A, Savković Ž, Ljaljević Grbić M, Vukojević J, Jovanović Z, Makarov S, Lučić L. Multifaceted activity of millipede secretions: Antioxidant, antineurodegenerative, and anti-Fusarium effects of the defensive secretions of Pachyiulus hungaricus (Karsch, 1881) and Megaphyllum unilineatum (C. L. Koch, 1838) (Diplopoda: Julida). PLoS One 2019; 14:e0209999. [PMID: 30605481 PMCID: PMC6317802 DOI: 10.1371/journal.pone.0209999] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 12/15/2018] [Indexed: 12/22/2022] Open
Abstract
Members of the millipede order Julida rely on dominantly quinonic defensive secretions with several minor, non-quinonic components. The free radical-scavenging activities of ethanol, methanol, hexane, and dichloromethane extracts of defensive secretions emitted by Pachyiulus hungaricus (Karsch, 1881) and Megaphyllum unilineatum (C. L. Koch, 1838) were investigated using the ABTS, DPPH, and total reducing power (TRP) tests. The obtained extracts were also tested for inhibition of acetylcholinesterase and tyrosinase activity. Finally, the antifungal potential of both julid extracts was evaluated against seven Fusarium species. Secretions of both species showed activity against free radicals, acetylcholinesterase, tyrosinase, and all of the selected fungal species. The secretions of P. hungaricus exhibited a more potent antioxidative effect than did those of M. unilineatum, while there were no significant differences of antiacetylcholinesterase activity between the tested extracts. Only the hexane extract of M. unilineatum showed an effect on tyrosinase activity stronger than that of P. hungaricus. Fusarium sporotrichioides, F. graminearum, and F. verticillioides were the fungi most resistant to secretions of both julids. The Fusarium species most susceptible to the secretion of P. hungaricus was F. avenaceum, while the concentrations of M. unilienatum extracts needed to inhibit and completely suppress fungal growth were lowest in the case of their action on F. lateritium. Our data support previous findings that julid defensive secretions possess an antimicrobial potential and reveal their antioxidative and antineurodegenrative properties. Bearing in mind the chemical complexity of the tested defensive secretions, we presume that they can also exhibit other biological activities.
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Affiliation(s)
- Bojan Ilić
- Department of Animal Development, University of Belgrade—Faculty of Biology, Belgrade, Serbia
- * E-mail:
| | - Nikola Unković
- Department of Algology, Mycology, and Lichenology, University of Belgrade—Faculty of Biology, Belgrade, Serbia
| | - Aleksandar Knežević
- Department of Algology, Mycology, and Lichenology, University of Belgrade—Faculty of Biology, Belgrade, Serbia
| | - Željko Savković
- Department of Algology, Mycology, and Lichenology, University of Belgrade—Faculty of Biology, Belgrade, Serbia
| | - Milica Ljaljević Grbić
- Department of Algology, Mycology, and Lichenology, University of Belgrade—Faculty of Biology, Belgrade, Serbia
| | - Jelena Vukojević
- Department of Algology, Mycology, and Lichenology, University of Belgrade—Faculty of Biology, Belgrade, Serbia
| | - Zvezdana Jovanović
- Department of Animal Development, University of Belgrade—Faculty of Biology, Belgrade, Serbia
| | - Slobodan Makarov
- Department of Animal Development, University of Belgrade—Faculty of Biology, Belgrade, Serbia
| | - Luka Lučić
- Department of Animal Development, University of Belgrade—Faculty of Biology, Belgrade, Serbia
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Gai X, Dong H, Wang S, Liu B, Zhang Z, Li X, Gao Z. Infection cycle of maize stalk rot and ear rot caused by Fusarium verticillioides. PLoS One 2018; 13:e0201588. [PMID: 30063754 PMCID: PMC6067754 DOI: 10.1371/journal.pone.0201588] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 07/18/2018] [Indexed: 11/19/2022] Open
Abstract
Fusarium verticillioides, an important maize pathogen produces fumonisins and causes stalk and ear rot; thus, we are aimed to clarify its infection cycle by assessing enhanced green fluorescent protein (EGFP) expression in stalk and ear rot strains. Maize seeds were inoculated with stable and strongly pathogenic transformants. To investigate the degree of infection, inoculated plants were observed under a stereo fluorescence microscope, and affected tissue strains were detected using PCR. We found that both transformants infected maize. Hyphae infected the plants from radical to the stem and extended to the ear and infected ear kernels caused a second infection. This process formed the infection cycle.
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Affiliation(s)
- Xiaotong Gai
- Ministry of Agriculture Key Laboratory of Northern Crop Immunology, College of Plant Protection, Shenyang Agricultural University, Shenyang, China
| | - Huaiyu Dong
- Ministry of Agriculture Key Laboratory of Northern Crop Immunology, College of Plant Protection, Shenyang Agricultural University, Shenyang, China
- Institute of Plant Protection, Academy of Agricultural Sciences of Liaoning, Shenyang, China
| | - Suna Wang
- College of Landscape and Ecological Engineering, Hebei University of Engineering, Handan, China
| | - Bo Liu
- Ministry of Agriculture Key Laboratory of Northern Crop Immunology, College of Plant Protection, Shenyang Agricultural University, Shenyang, China
| | - Zhaoran Zhang
- Ministry of Agriculture Key Laboratory of Northern Crop Immunology, College of Plant Protection, Shenyang Agricultural University, Shenyang, China
| | - Xiaoyang Li
- Ministry of Agriculture Key Laboratory of Northern Crop Immunology, College of Plant Protection, Shenyang Agricultural University, Shenyang, China
| | - Zenggui Gao
- Ministry of Agriculture Key Laboratory of Northern Crop Immunology, College of Plant Protection, Shenyang Agricultural University, Shenyang, China
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24
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Moretti ML, Busso-Lopes AF, Tararam CA, Moraes R, Muraosa Y, Mikami Y, Gonoi T, Taguchi H, Lyra L, Reichert-Lima F, Trabasso P, de Hoog GS, Al-Hatmi AMS, Schreiber AZ, Kamei K. Airborne transmission of invasive fusariosis in patients with hematologic malignancies. PLoS One 2018; 13:e0196426. [PMID: 29698435 PMCID: PMC5919535 DOI: 10.1371/journal.pone.0196426] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 04/12/2018] [Indexed: 01/01/2023] Open
Abstract
From 2006 to 2013, an increasing incidence of fusariosis was observed in the hematologic patients of our University Hospital. We suspected of an environmental source, and the indoor hospital air was investigated as a potential source of the fungemia. Air samplings were performed in the hematology and bone marrow transplant (BMT) wards using an air sampler with pre-defined air volumes. To study the molecular relationship among environmental and clinical isolates, 18 Fusarium spp. recovered from blood cultures were included in the study. DNA sequencing of a partial portion of TEF1α gene was performed for molecular identification. Molecular typing was carried out by multi-locus sequence typing (MLST) using a four-gene scheme: TEF1α, rDNA, RPB1 and RPB2. One hundred four isolates were recovered from the air of the hematology (n = 76) and the BMT (n = 28) wards. Fusarium isolates from the air were from five species complexes: Fusarium fujikuroi (FFSC, n = 56), Fusarium incarnatum-equiseti (FIESC, n = 24), Fusarium solani (FSSC, n = 13), Fusarium chlamydosporum (FCSC, n = 10), and Fusarium oxysporum (FOSC, n = 1). Fifteen Fusarium isolates recovered from blood belonged to FSSC, and three to FFSC. MLST identified the same sequence type (ST) in clinical and environmental isolates. ST1 was found in 5 isolates from blood and in 7 from the air, both identified as FSSC (Fusarium petroliphilum). STn1 was found in one isolate from blood and in one from the air, both identified as FFSC (Fusarium napiforme). F. napiforme was isolated from the air of the hospital room of the patient with fungemia due to F. napiforme. These findings suggested a possible clonal origin of the Fusarium spp. recovered from air and bloodcultures. In conclusion, our study found a diversity of Fusarium species in the air of our hospital, and a possible role of the air as source of systemic fusariosis in our immunocompromised patients.
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Affiliation(s)
- Maria Luiza Moretti
- Department of Internal Medicine, Faculty of Medical Sciences, University of Campinas, Campinas, Sao Paulo, Brazil
- * E-mail:
| | | | - Cibele Aparecida Tararam
- Department of Internal Medicine, Faculty of Medical Sciences, University of Campinas, Campinas, Sao Paulo, Brazil
| | - Renato Moraes
- Department of Internal Medicine, Faculty of Medical Sciences, University of Campinas, Campinas, Sao Paulo, Brazil
| | - Yasunori Muraosa
- Medical Mycology Research Center, Chiba University, Chiba, Japan
| | - Yuzuru Mikami
- Medical Mycology Research Center, Chiba University, Chiba, Japan
| | - Tohru Gonoi
- Medical Mycology Research Center, Chiba University, Chiba, Japan
| | - Hideaki Taguchi
- Medical Mycology Research Center, Chiba University, Chiba, Japan
| | - Luzia Lyra
- Department of Clinical Pathology, Faculty of Medical Sciences, University of Campinas, Campinas, Sao Paulo, Brazil
| | - Franqueline Reichert-Lima
- Department of Clinical Pathology, Faculty of Medical Sciences, University of Campinas, Campinas, Sao Paulo, Brazil
| | - Plínio Trabasso
- Department of Internal Medicine, Faculty of Medical Sciences, University of Campinas, Campinas, Sao Paulo, Brazil
| | - Gerrit Sybren de Hoog
- CBS-KNAW Fungal Biodiversity Centre, Utrecht, The Netherlands
- Institutes of Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands
- Basic Pathology Department, Federal University of Paraná State, Curitiba, Paraná, Brazil
- Biology Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Abdullah Mohammed Said Al-Hatmi
- CBS-KNAW Fungal Biodiversity Centre, Utrecht, The Netherlands
- Institutes of Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands
- Directorate General of Health Services, Ibri Hospital, Ministry of Health, Muscat, Oman
| | - Angelica Zaninelli Schreiber
- Department of Clinical Pathology, Faculty of Medical Sciences, University of Campinas, Campinas, Sao Paulo, Brazil
| | - Katsuhiko Kamei
- Medical Mycology Research Center, Chiba University, Chiba, Japan
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25
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Dallé Rosa P, Ramirez-Castrillon M, Valente P, Meneghello Fuentefria A, Van Diepeningen AD, Goldani LZ. Fusarium riograndense sp. nov., a new species in the Fusarium solani species complex causing fungal rhinosinusitis. J Mycol Med 2018. [PMID: 29525269 DOI: 10.1016/j.mycmed.2018.01.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Invasive fusariosis has a high mortality and is predominantly observed in patients with leukemia. We report the first case of a novel species of Fusarium, Fusarium riograndense sp. nov, isolated from a lesion in the nasal cavity lesion of a patient with acute lymphoblastic leukemia. The etiological agent was identified by Multilocus Sequencing Typing (MLST), including RPB2, TEF-1α, and ITS-LSU sequences, the gold standard technique to identify new species of Fusarium. MLST and phenotypic data strongly supported its inclusion in the F. solani species complex (FSSC). The new species produced a red pigment in the Sabouraud Dextrose Agar similar to other members of the complex. The macroconiodia developed from phialides on multibranched conidiophores which merge to form effuse sporodochia with a basal foot-cell instead of papilla in basal cell shape. The microconidia were ellipsoidal, 0-1-septated, produced from long monophialides. Chlamydospores were produced singly or in pairs. Amphotericin B (MIC 1μg/mL) was the most active drug, followed by voriconazole (MIC 8μg/mL). The patient was successfully treated with voriconazole. Our findings indicate another lineage within FSSC capable causing of invasive human infection.
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Affiliation(s)
- P Dallé Rosa
- Infectious Diseases Unit, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Programa de Pós-Graduação em Ciências Médicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - M Ramirez-Castrillon
- Research group in Mycology (GIM/CICBA), Universidad Santiago de Cali, Cali, Colombia
| | - P Valente
- Research group in Mycology (GIM/CICBA), Universidad Santiago de Cali, Cali, Colombia; Programa de Pós-Graduação em Microbiologia Agrícola e do Ambiente, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - A Meneghello Fuentefria
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Westerdijk Fungal Biodiversity Institute, Utrecht, The Netherlands
| | - A D Van Diepeningen
- Westerdijk Fungal Biodiversity Institute, Utrecht, The Netherlands; Wageningen University and Research Centre, Wageningen, The Netherlands
| | - L Z Goldani
- Infectious Diseases Unit, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Programa de Pós-Graduação em Ciências Médicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
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26
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Chiewchanvit S, Chongkae S, Mahanupab P, Nosanchuk JD, Pornsuwan S, Vanittanakom N, Youngchim S. Melanization of Fusarium keratoplasticum (F. solani Species Complex) During Disseminated Fusariosis in a Patient with Acute Leukemia. Mycopathologia 2017; 182:879-885. [PMID: 28616680 DOI: 10.1007/s11046-017-0156-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2016] [Accepted: 06/06/2017] [Indexed: 12/22/2022]
Abstract
Fusarium spp. are recognized as the second most frequently filamentous fungi causing opportunistic infections and particularly important due to the increasing number of immunocompromised patients. F. keratoplasticum (a member of F. solani species complex) is one of the Fusarium species commonly associated with human infection, and therefore, studies on the virulence of this fungus are needed. This study aimed to confirm the presence of melanin in F. keratoplasticum from a patient with systemic fusariosis. Immunofluorescence labeling with anti-melanin monoclonal antibody (MAb) was used to examine an expression of melanin in F. keratoplasticum in vitro and during infection. Electron spin resonance identified the particles extracted from F. keratoplasticum as stable free radical consistent with melanin. Lesional skin from the sites with fusariosis contained hyphal structures that could be labeled by melanin-binding MAb, while digestion of the tissue yielded dark particles that were reactive. These findings suggest that F. keratoplasticum hyphae and chlamydospores can produce melanin in vitro and that hyphae can synthesize pigment in vivo. Given the potential role of melanin in virulence of other fungi, this pigment in F. keratoplasticum may play a role in the pathogenesis of fusariosis.
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Affiliation(s)
- Siri Chiewchanvit
- Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Siriporn Chongkae
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Pongsak Mahanupab
- Department of Pathology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Joshua D Nosanchuk
- Department of Medicine (Infectious Diseases), Albert Einstein College of Medicine, Bronx, NY, 10461, USA
| | - Soraya Pornsuwan
- Department of Physical Chemistry, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand
| | - Nongnuch Vanittanakom
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Sirida Youngchim
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand.
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27
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Amadasi S, Pelliccioli GF, Colombini P, Bonomini A, Farina C, Pietrantonio F, Pedroni P. Contact lens-related Fusarium keratitis: a case report. Infez Med 2017; 25:166-168. [PMID: 28603237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We aim to highlight the key factors for a good outcome of fungal keratitis. We describe a case of contact lens-related Fusarium keratitis in a young girl. After identification of Fusarium spp under direct microscopic examination and in culture, a prolonged treatment with topic natamycin 5% was started and administered for five months with restitutio ad integrum of the eye. Prompt microbiological diagnosis and a specific and prolonged treatment are essential for correct management of Fusarium keratitis.
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Affiliation(s)
- Silvia Amadasi
- Department of Internal Medicine, Manerbio Hospital, ASST del Garda, Manerbio (BS), Italy
| | | | - Paolo Colombini
- Department of Internal Medicine, Manerbio Hospital, ASST del Garda, Manerbio (BS), Italy
| | - Annalisa Bonomini
- Department of Microbiology, Manerbio Hospital, ASST del Garda, Manerbio (BS), Italy
| | - Claudio Farina
- Microbiology Institute, ASST Papa Giovanni XXIII, Bergamo, Italy
| | - Filomena Pietrantonio
- Department of Internal Medicine, Manerbio Hospital, ASST del Garda, Manerbio (BS), Italy
| | - Palmino Pedroni
- Department of Microbiology, Manerbio Hospital, ASST del Garda, Manerbio (BS), Italy
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28
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Kulatunga DCM, Dananjaya SHS, Park BK, Kim CH, Lee J, De Zoysa M. First report of Fusarium oxysporum species complex infection in zebrafish culturing system. J Fish Dis 2017; 40:485-494. [PMID: 27451953 DOI: 10.1111/jfd.12529] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Revised: 06/04/2016] [Accepted: 06/08/2016] [Indexed: 06/06/2023]
Abstract
Fusarium oxysporum species complex (FOSC) is a highly diverse fungus. Recently, F. oxysporum infection was identified from zebrafish (Danio rerio) culturing system in Korea. Initially, a rapid whitish smudge was appeared in the water with the fungal blooming on walls of fish tanks. Microscopic studies were conducted on fungal hyphae, colony pigmentation and chlamydospore formation and the presence of macro- and microspores confirmed that the isolated fungus as F. oxysporum. Furthermore, isolated F. oxysporum was confirmed by internal transcribed spacer sequencing which matched (100%) to nine F. oxysporum sequences available in GenBank. Experimental hypodermic injection of F. oxysporum into adult zebrafish showed the development of fungal mycelium and pathogenicity similar to signs observed. Histopathologic results revealed a presence of F. oxysporum hyphae in zebrafish muscle. Fusarium oxysporum growth was increased with sea salt in a concentration-dependent manner. Antifungal susceptibility results revealed that F. oxysporum is resistant to copper sulphate (up to 200 μg mL-1 ) and sensitive to nystatin (up to 40 μg mL-1 ). This is the first report of FOSC from zebrafish culture system, suggesting it appears as an emerging pathogen, thus posing a significant risk on zebrafish facilities in the world.
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Affiliation(s)
- D C M Kulatunga
- College of Veterinary Medicine and Research Institute of Veterinary Medicine, Chungnam National University, Yuseong-gu, Daejeon, Korea
| | - S H S Dananjaya
- College of Veterinary Medicine and Research Institute of Veterinary Medicine, Chungnam National University, Yuseong-gu, Daejeon, Korea
| | - B K Park
- College of Veterinary Medicine and Research Institute of Veterinary Medicine, Chungnam National University, Yuseong-gu, Daejeon, Korea
| | - C-H Kim
- Department of Biology, Chungnam National University, Yuseong-gu, Daejeon, Korea
| | - J Lee
- Department of Marine Life Sciences, School of Marine Biomedical Sciences, Jeju National University, Jeju City, Jeju Self-Governing Province, Korea
- Fish Vaccine Research Center, Jeju National University, Jeju City, Jeju Self-Governing Province, Korea
| | - M De Zoysa
- College of Veterinary Medicine and Research Institute of Veterinary Medicine, Chungnam National University, Yuseong-gu, Daejeon, Korea
- Fish Vaccine Research Center, Jeju National University, Jeju City, Jeju Self-Governing Province, Korea
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29
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Köberl M, Dita M, Martinuz A, Staver C, Berg G. Members of Gammaproteobacteria as indicator species of healthy banana plants on Fusarium wilt-infested fields in Central America. Sci Rep 2017; 7:45318. [PMID: 28345666 PMCID: PMC5366900 DOI: 10.1038/srep45318] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 02/21/2017] [Indexed: 12/03/2022] Open
Abstract
Culminating in the 1950's, bananas, the world's most extensive perennial monoculture, suffered one of the most devastating disease epidemics in history. In Latin America and the Caribbean, Fusarium wilt (FW) caused by the soil-borne fungus Fusarium oxysporum f. sp. cubense (FOC), forced the abandonment of the Gros Michel-based export banana industry. Comparative microbiome analyses performed between healthy and diseased Gros Michel plants on FW-infested farms in Nicaragua and Costa Rica revealed significant shifts in the gammaproteobacterial microbiome. Although we found substantial differences in the banana microbiome between both countries and a higher impact of FOC on farms in Costa Rica than in Nicaragua, the composition especially in the endophytic microhabitats was similar and the general microbiome response to FW followed similar rules. Gammaproteobacterial diversity and community members were identified as potential health indicators. Healthy plants revealed an increase in potentially plant-beneficial Pseudomonas and Stenotrophomonas, while diseased plants showed a preferential occurrence of Enterobacteriaceae known for their plant-degrading capacity. Significantly higher microbial rhizosphere diversity found in healthy plants could be indicative of pathogen suppression events preventing or minimizing disease expression. This first study examining banana microbiome shifts caused by FW under natural field conditions opens new perspectives for its biological control.
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Affiliation(s)
- Martina Köberl
- Graz University of Technology, Institute of Environmental Biotechnology, Austria
| | - Miguel Dita
- Brazilian Agricultural Research Corporation – Embrapa, Brasília, Brazil
- Bioversity International, Turrialba, Costa Rica
| | | | | | - Gabriele Berg
- Graz University of Technology, Institute of Environmental Biotechnology, Austria
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30
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Affiliation(s)
- David Triest
- BCCM/IHEM Collection of Biomedical Fungi, Service of Mycology and Aerobiology, Scientific Institute of Public Health, Brussels, Belgium
| | - Marijke Hendrickx
- BCCM/IHEM Collection of Biomedical Fungi, Service of Mycology and Aerobiology, Scientific Institute of Public Health, Brussels, Belgium
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31
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Edel-Hermann V, Sautour M, Gautheron N, Laurent J, Aho S, Bonnin A, Sixt N, Hartemann P, Dalle F, Steinberg C. A Clonal Lineage of Fusarium oxysporum Circulates in the Tap Water of Different French Hospitals. Appl Environ Microbiol 2016; 82:6483-6489. [PMID: 27663024 PMCID: PMC5066365 DOI: 10.1128/aem.01939-16] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Accepted: 08/23/2016] [Indexed: 01/03/2023] Open
Abstract
Fusarium oxysporum is typically a soilborne fungus but can also be found in aquatic environments. In hospitals, water distribution systems may be reservoirs for the fungi responsible for nosocomial infections. F. oxysporum was previously detected in the water distribution systems of five French hospitals. Sixty-eight isolates from water representative of all hospital units that were previously sampled and characterized by translation elongation factor 1α sequence typing were subjected to microsatellite analysis and full-length ribosomal intergenic spacer (IGS) sequence typing. All but three isolates shared common microsatellite loci and a common two-locus sequence type (ST). This ST has an international geographical distribution in both the water networks of hospitals and among clinical isolates. The ST dominant in water was not detected among 300 isolates of F. oxysporum that originated from surrounding soils. Further characterization of 15 isolates by vegetative compatibility testing allowed us to conclude that a clonal lineage of F. oxysporum circulates in the tap water of the different hospitals. IMPORTANCE We demonstrated that a clonal lineage of Fusarium oxysporum inhabits the water distribution systems of several French hospitals. This clonal lineage, which appears to be particularly adapted to water networks, represents a potential risk for human infection and raises questions about its worldwide distribution.
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Affiliation(s)
| | - Marc Sautour
- Parasitology and Mycology Laboratory, Plateau Technique de Biologie du CHU, Dijon, France UMR PAM A 02.102 Procédés Alimentaires et Microbiologiques, Université de Bourgogne Franche-Comté, AgroSup Dijon, Dijon, France
| | | | | | - Serge Aho
- Hospital Hygiene and Epidemiology Unit, Hôpital du Bocage, Dijon, France
| | - Alain Bonnin
- Parasitology and Mycology Laboratory, Plateau Technique de Biologie du CHU, Dijon, France UMR PAM A 02.102 Procédés Alimentaires et Microbiologiques, Université de Bourgogne Franche-Comté, AgroSup Dijon, Dijon, France
| | - Nathalie Sixt
- Environmental Microbiology, Plateau Technique de Biologie du CHU, Dijon, France
| | - Philippe Hartemann
- Department Environment and Public Health, Nancy University, Hospital Hygiene Unit, Vandoeuvre-Nancy, France
| | - Frédéric Dalle
- Parasitology and Mycology Laboratory, Plateau Technique de Biologie du CHU, Dijon, France UMR PAM A 02.102 Procédés Alimentaires et Microbiologiques, Université de Bourgogne Franche-Comté, AgroSup Dijon, Dijon, France
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32
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Jiang Y, Al-Hatmi AMS, Xiang Y, Cao Y, van den Ende AHGG, Curfs-Breuker I, Meis JF, Lu H, de Hoog GS. The Concept of Ecthyma Gangrenosum Illustrated by a Fusarium oxysporum Infection in an Immunocompetent Individual. Mycopathologia 2016; 181:759-63. [PMID: 27324372 PMCID: PMC5014892 DOI: 10.1007/s11046-016-0031-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Accepted: 06/13/2016] [Indexed: 12/14/2022]
Abstract
Ecthyma gangrenosum (EG) involves necrotic cutaneous lesions caused by bacteria, mainly Pseudomonas aeruginosa, and is usually seen in immunocompromised patients with septicemia. However, clinically similar infections have been published with fungi as etiologic agents. We present a case of an EG-like lesion due to Fusarium oxysporum confirmed by clinical diagnosis, culture and molecular identification and discuss the definition of EG.
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Affiliation(s)
- Yanping Jiang
- Department of Dermatology, The Affiliated Hospital, Guizhou Medical University, PO Box 550001, 4 Beijing Road, Guiyang, China
- CBS-KNAW Fungal Biodiversity Centre, PO Box 85167, 3508 AD, Utrecht, The Netherlands
| | - Abdullah M S Al-Hatmi
- CBS-KNAW Fungal Biodiversity Centre, PO Box 85167, 3508 AD, Utrecht, The Netherlands.
- Institute of Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands.
- Directorate General of Health Services, Ibri Hospital, Ministry of Health, Muscat, Oman.
| | - Yining Xiang
- Departments of Pathology, The Affiliated Hospital, Guizhou Medical University, Guiyang, China
| | - Yu Cao
- Department of Dermatology, The Affiliated Hospital, Guizhou Medical University, PO Box 550001, 4 Beijing Road, Guiyang, China
| | - Albert H G Gerrits van den Ende
- Department of Dermatology, The Affiliated Hospital, Guizhou Medical University, PO Box 550001, 4 Beijing Road, Guiyang, China
| | - Ilse Curfs-Breuker
- Department of Medical Microbiology and Infectious Diseases, Canisius Wilhelmina Hospital, Nijmegen, The Netherlands
| | - Jacques F Meis
- Department of Medical Microbiology and Infectious Diseases, Canisius Wilhelmina Hospital, Nijmegen, The Netherlands
- Department of Medical Microbiology, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Hongguang Lu
- Department of Dermatology, The Affiliated Hospital, Guizhou Medical University, PO Box 550001, 4 Beijing Road, Guiyang, China.
| | - G Sybren de Hoog
- CBS-KNAW Fungal Biodiversity Centre, PO Box 85167, 3508 AD, Utrecht, The Netherlands
- Institute of Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands
- Basic Pathology Department, Federal University of Paraná State, Curitiba, Paraná, Brazil
- Biology Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
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Affiliation(s)
- David Triest
- 1 BCCM/IHEM Biomedical Fungi and Yeasts Collection, Section of Mycology and Aerobiology, Scientific Institute of Public Health , Brussels, Belgium
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Ferrigo D, Raiola A, Causin R. Fusarium Toxins in Cereals: Occurrence, Legislation, Factors Promoting the Appearance and Their Management. Molecules 2016; 21:E627. [PMID: 27187340 PMCID: PMC6274039 DOI: 10.3390/molecules21050627] [Citation(s) in RCA: 163] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Revised: 04/11/2016] [Accepted: 05/09/2016] [Indexed: 12/18/2022] Open
Abstract
Fusarium diseases of small grain cereals and maize cause significant yield losses worldwide. Fusarium infections result in reduced grain yield and contamination with mycotoxins, some of which have a notable impact on human and animal health. Regulations on maximum limits have been established in various countries to protect consumers from the harmful effects of these mycotoxins. Several factors are involved in Fusarium disease and mycotoxin occurrence and among them environmental factors and the agronomic practices have been shown to deeply affect mycotoxin contamination in the field. In the present review particular emphasis will be placed on how environmental conditions and stress factors for the crops can affect Fusarium infection and mycotoxin production, with the aim to provide useful knowledge to develop strategies to prevent mycotoxin accumulation in cereals.
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Affiliation(s)
- Davide Ferrigo
- Department of Land, Environment, Agriculture and Forestry, University of Padua, Campus of Agripolis, Viale Università 16, 35020 Legnaro, Padua, Italy.
| | - Alessandro Raiola
- Department of Land, Environment, Agriculture and Forestry, University of Padua, Campus of Agripolis, Viale Università 16, 35020 Legnaro, Padua, Italy.
| | - Roberto Causin
- Department of Land, Environment, Agriculture and Forestry, University of Padua, Campus of Agripolis, Viale Università 16, 35020 Legnaro, Padua, Italy.
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Stępień Ł, Waśkiewicz A, Urbaniak M. Wildly Growing Asparagus (Asparagus officinalis L.) Hosts Pathogenic Fusarium Species and Accumulates Their Mycotoxins. Microb Ecol 2016; 71:927-937. [PMID: 26687343 PMCID: PMC4823322 DOI: 10.1007/s00248-015-0717-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Accepted: 12/03/2015] [Indexed: 06/05/2023]
Abstract
Asparagus officinalis L. is an important crop in many European countries, likely infected by a number of Fusarium species. Most of them produce mycotoxins in plant tissues, thus affecting the physiology of the host plant. However, there is lack of information on Fusarium communities in wild asparagus, where they would definitely have considerable environmental significance. Therefore, the main scientific aim of this study was to identify the Fusarium species and quantify their typical mycotoxins present in wild asparagus plants collected at four time points of the season. Forty-four Fusarium strains of eight species--Fusarium acuminatum, Fusarium avenaceum, Fusarium culmorum, Fusarium equiseti, Fusarium oxysporum, Fusarium proliferatum, Fusarium sporotrichioides, and Fusarium tricinctum--were isolated from nine wild asparagus plants in 2013 season. It is the first report of F. sporotrichioides isolated from this particular host. Fumonisin B1 was the most abundant mycotoxin, and the highest concentrations of fumonisins B1-B3 and beauvericin were found in the spears collected in May. Moniliformin and enniatins were quantified at lower concentrations. Mycotoxins synthesized by individual strains obtained from infected asparagus tissues were assessed using in vitro cultures on sterile rice grain. Most of the F. sporotrichioides strains synthesized HT-2 toxin and F. equiseti strains were found to be effective zearalenone producers.
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Affiliation(s)
- Łukasz Stępień
- Department of Pathogen Genetics and Plant Resistance, Institute of Plant Genetics, Polish Academy of Sciences, Strzeszyńska 34, 60-479, Poznań, Poland.
| | - Agnieszka Waśkiewicz
- Department of Chemistry, Poznań University of Life Sciences, Wojska Polskiego 75, 60-625, Poznań, Poland
| | - Monika Urbaniak
- Department of Pathogen Genetics and Plant Resistance, Institute of Plant Genetics, Polish Academy of Sciences, Strzeszyńska 34, 60-479, Poznań, Poland
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Chitrampalam P, Nelson B. Multilocus phylogeny reveals an association of agriculturally important Fusarium solani species complex (FSSC) 11, and clinically important FSSC 5 and FSSC 3 + 4 with soybean roots in the north central United States. Antonie Van Leeuwenhoek 2016; 109:335-47. [PMID: 26671414 DOI: 10.1007/s10482-015-0636-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Accepted: 12/09/2015] [Indexed: 11/25/2022]
Abstract
The Fusarium solani species complex (FSSC) includes important root pathogens of soybean in the United States, but the evolutionary lineages associated with soybean root rot are unknown. A multilocus phylogeny based on 93 isolates from soybean and pea roots from North Dakota and Minnesota revealed that root rot was associated with three known phylogenetic species, FSSC 3 + 4 (=Fusarium falciforme) (3 % of isolates), FSSC 5 (60 %), FSSC 11 (34 %), and one unknown species, FSSC X (2 %). Of these species FSSC 5 and FSSC 3 + 4 are clinically important while FSSC 11 is a plant pathogen. Isolates from FSSC 11 were pathogenic on soybean, dry bean, pea and lentil, and did not grow at 37 °C. However, isolates from FSSC 5 were weakly to non-pathogenic, but grew at 37 °C. Isolates from both FSSC 5 and FSSC 11 were highly resistant to fludioxonil in vitro. This is the first study revealing the pathogenic robustness of FSSC 11 in causing root rot among Fabaceae crops and also the association of clinically important members of the FSSC with roots of a widely grown field crop in the United States.
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Affiliation(s)
- P Chitrampalam
- Department of Plant Pathology, North Dakota State University, Fargo, ND, 58108, USA
| | - B Nelson
- Department of Plant Pathology, North Dakota State University, Fargo, ND, 58108, USA.
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Al-Hatmi AMS, Mirabolfathy M, Hagen F, Normand AC, Stielow JB, Karami-Osbo R, van Diepeningen AD, Meis JF, de Hoog GS. DNA barcoding, MALDI-TOF, and AFLP data support Fusarium ficicrescens as a distinct species within the Fusarium fujikuroi species complex. Fungal Biol 2015; 120:265-78. [PMID: 26781381 DOI: 10.1016/j.funbio.2015.08.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2015] [Revised: 07/22/2015] [Accepted: 08/04/2015] [Indexed: 12/14/2022]
Abstract
The Fusarium fujikuroi species complex (FFSC) is one of the most common groups of fusaria associated with plant diseases, mycotoxin production and traumatic and disseminated human infections. Here we present the description and taxonomy of a new taxon, Fusarium ficicrescens sp. nov., collected from contaminated fig fruits in Iran. Initially this species was identified as Fusarium andiyazi by morphology. In the present study the species was studied by multilocus sequence analysis, amplified fragment length polymorphism (AFLP), matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS) and phenotypic characters. Multilocus analyses were based on translation elongation factor 1α (TEF1), RNA polymerase subunit (RPB2) and beta-tubulin (BT2) and proved F. ficicrescens as a member of the FFSC. Phylogenetic analysis showed that the fungus is closely related to Fusarium lactis, Fusarium ramigenum, and Fusarium napiforme; known plant pathogens, mycotoxin producers, and occasionally occurring multidrug resistant opportunists. The new species differed by being able to grow at 37 °C and by the absence of mycotoxin production. TEF1 was confirmed as an essential barcode for identifying Fusarium species. In addition to TEF1, we evaluated BT2 and RPB2 in order to provide sufficient genetic and species boundaries information for recognition of the novel species.
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Affiliation(s)
- Abdullah M S Al-Hatmi
- CBS-KNAW Fungal Biodiversity Centre, Utrecht, The Netherlands; Institute of Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands; Directorate General of Health Services, Ministry of Health, Ibri Hospital, Ibri, Oman.
| | | | - Ferry Hagen
- Departments of Medical Microbiology and Infectious Diseases, Canisius Wilhelmina Hospital, Nijmegen, The Netherlands; Erasmus MC, Rotterdam, The Netherlands
| | - Anne-Cécile Normand
- Laboratoire de Parasitologie-Mycologie, CHU Timone, Université de la Méditerranée, Marseille, France
| | | | | | | | - Jacques F Meis
- Departments of Medical Microbiology and Infectious Diseases, Canisius Wilhelmina Hospital, Nijmegen, The Netherlands; Erasmus MC, Rotterdam, The Netherlands; Department of Medical Microbiology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - G Sybren de Hoog
- CBS-KNAW Fungal Biodiversity Centre, Utrecht, The Netherlands; Institute of Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands; Basic Pathology Department, Federal University of Paraná State, Curitiba, Paraná, Brazil; King Abdulaziz University, Jeddah, Saudi Arabia
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Antequera P, Garcia-Conca V, Martín-González C, Ortiz-de-la-Tabla V. Multidrug resistant Fusarium keratitis. Arch Soc Esp Oftalmol 2015; 90:382-384. [PMID: 25443198 DOI: 10.1016/j.oftal.2014.04.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2014] [Revised: 03/26/2014] [Accepted: 04/08/2014] [Indexed: 06/04/2023]
Abstract
CASE REPORT We report a case of keratitis in a female contact lens wearer, who developed a deep corneal abscess. The culture of a corneal biopsy scraping was positive for multiresistant Fusarium solani. The patient has a complicated clinical course and failed to respond to local and systemic antifungal treatment, requiring eye enucleation. CONCLUSION Fusarium keratitis may progress to severe endophthalmitis. Clinical suspicion is paramount in order to start antifungal therapy without delay. Therapy is complex due to the high resistance of this organism to usual antifungal drugs.
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Affiliation(s)
- P Antequera
- Servicio de Microbiología, Hospital Universitario San Juan, Alicante, España
| | - V Garcia-Conca
- Servicio de Oftalmología, Hospital Universitario San Juan, Alicante, España
| | - C Martín-González
- Servicio de Microbiología, Hospital Universitario San Juan, Alicante, España
| | - V Ortiz-de-la-Tabla
- Servicio de Microbiología, Hospital Universitario San Juan, Alicante, España.
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Czembor E, Stępień Ł, Waśkiewicz A. Effect of Environmental Factors on Fusarium Species and Associated Mycotoxins in Maize Grain Grown in Poland. PLoS One 2015; 10:e0133644. [PMID: 26225823 PMCID: PMC4520617 DOI: 10.1371/journal.pone.0133644] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 06/30/2015] [Indexed: 11/19/2022] Open
Abstract
Maize is one of the most important crops and Poland is the fifth largest producing country in Europe. Diseases caused by Fusarium spp. can affect the yield and grain quality of maize because of contamination with numerous mycotoxins produced by these fungi. The present study was performed to identify the prevailing Fusarium species and the environmental factors affecting their frequencies and the contamination of grain with the main mycotoxins deoxynivalenol (DON), zearalenone (ZON) and fumonisin B1 (FB1). Thirty kernel samples were collected in three locations in 2011 and in seven locations in 2012 from three hybrids. On average, 25.24% kernels were colonized by Fusarium spp. (424 strains were isolated). Fusarium verticillioides and F. temperatum were the most prevalent species, F. subglutinans, F. proliferatum and F. graminearum were in minor abundance. In total, 272 isolates of F. verticillioides and 81 isolates of F. temperatum were identified. Fusarium temperatum frequency ranged from 1.70% to 28.57% and differences between locations were significant. Fumonisin B1 was found in all tested samples. DON was found in 66.67% and ZON in 43.33% of samples. Rainfall amount positively affected F. temperatum and F. subglutinans frequency in opposite to mean temperatures in July. On the other hand, relationships between frequency of these species and historical data from 1950-2000 for annual temperature range were negative in contrast to the coldest quarter temperatures.
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Affiliation(s)
- Elżbieta Czembor
- Grasses and Legumes Department, Plant Breeding and Acclimatization Institute—NRI, Radzików, Poland
| | - Łukasz Stępień
- Department of Pathogen Genetics and Plant Resistance, Institute of Plant Genetics, Polish Academy of Sciences, Poznań, Poland
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Tan D, Fu L, Han B, Sun X, Zheng P, Zhang J. Identification of an Endophytic Antifungal Bacterial Strain Isolated from the Rubber Tree and Its Application in the Biological Control of Banana Fusarium Wilt. PLoS One 2015; 10:e0131974. [PMID: 26133557 PMCID: PMC4489675 DOI: 10.1371/journal.pone.0131974] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Accepted: 06/09/2015] [Indexed: 01/13/2023] Open
Abstract
Banana Fusarium wilt (also known as Panama disease) is one of the most disastrous plant diseases. Effective control methods are still under exploring. The endophytic bacterial strain ITBB B5-1 was isolated from the rubber tree, and identified as Serratia marcescens by morphological, biochemical, and phylogenetic analyses. This strain exhibited a high potential for biological control against the banana Fusarium disease. Visual agar plate assay showed that ITBB B5-1 restricted the mycelial growth of the pathogenic fungus Fusarium oxysporum f. sp. cubense race 4 (FOC4). Microscopic observation revealed that the cell wall of the FOC4 mycelium close to the co-cultured bacterium was partially decomposed, and the conidial formation was prohibited. The inhibition ratio of the culture fluid of ITBB B5-1 against the pathogenic fungus was 95.4% as estimated by tip culture assay. Chitinase and glucanase activity was detected in the culture fluid, and the highest activity was obtained at Day 2 and Day 3 of incubation for chitinase and glucanase, respectively. The filtrated cell-free culture fluid degraded the cell wall of FOC4 mycelium. These results indicated that chitinase and glucanase were involved in the antifungal mechanism of ITBB B5-1. The potted banana plants that were inoculated with ITBB B5-1 before infection with FOC4 showed 78.7% reduction in the disease severity index in the green house experiments. In the field trials, ITBB B5-1 showed a control effect of approximately 70.0% against the disease. Therefore, the endophytic bacterial strain ITBB B5-1 could be applied in the biological control of banana Fusarium wilt.
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Affiliation(s)
- Deguan Tan
- MOA Key Laboratory of Biology and Genetic Resources for Tropical Crops, Institute of Tropical Bioscience and Biotechnology, CATAS, Haikou, Hainan Province, 571101, China
| | - Lili Fu
- MOA Key Laboratory of Biology and Genetic Resources for Tropical Crops, Institute of Tropical Bioscience and Biotechnology, CATAS, Haikou, Hainan Province, 571101, China
| | - Bingyin Han
- MOA Key Laboratory of Biology and Genetic Resources for Tropical Crops, Institute of Tropical Bioscience and Biotechnology, CATAS, Haikou, Hainan Province, 571101, China
| | - Xuepiao Sun
- MOA Key Laboratory of Biology and Genetic Resources for Tropical Crops, Institute of Tropical Bioscience and Biotechnology, CATAS, Haikou, Hainan Province, 571101, China
| | - Peng Zheng
- Lijiang Teachers College, Lijiang, Yunnan Province, 674110, China
| | - Jiaming Zhang
- MOA Key Laboratory of Biology and Genetic Resources for Tropical Crops, Institute of Tropical Bioscience and Biotechnology, CATAS, Haikou, Hainan Province, 571101, China
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Vasantha Ruban V, Geraldine P, Kaliamurthy J, Jesudasan CAN, Thomas PA. Keratitis due to Fusarium langsethiae: clinical profile, molecular identification, and susceptibility to antifungals. Mycopathologia 2015; 179:453-8. [PMID: 25645251 DOI: 10.1007/s11046-015-9866-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2014] [Accepted: 01/21/2015] [Indexed: 11/24/2022]
Abstract
We report a case of keratitis due to Fusarium langsethiae in a 56-year-old man. The patient presented with pain and tearing of 10 days duration in the right eye, which had sustained a paddy stalk injury. On examination, a hypopyon corneal ulcer was noted in the right eye. Multiple scrapings were obtained from the affected part of the cornea. A lactophenol cotton blue wet mount and a Gram-stained smear of scrapings were made. Scrapings were also inoculated on various culture media, including Sabouraud dextrose agar (SDA). A fungal etiology was sought by conventional microbiological techniques and polymerase chain reaction. In vitro susceptibility testing was performed by an agar dilution method. Direct microscopy of corneal scrapings revealed septate hyphae, leading to initiation of intensive topical therapy with natamycin (5 %). However, the keratitis progressed, necessitating therapeutic penetrating keratoplasty. White, powdery-like colonies, with abundant aerial mycelium, were recovered on SDA from corneal scrape material. Based on macroscopic and microscopic morphological features, the isolated fungus was initially identified as a Fusarium species. Sequence analysis of the 28S rRNA region of the fungal genome led to a specific identification of F. langsethiae. Antifungal susceptibility testing results suggested that the strain isolated was susceptible to voriconazole, ketoconazole, and itraconazole. To our knowledge, this is the first reported case of keratitis due to F. langsethiae; attention is drawn to the unique characteristics of the fungal isolate, difficulties in identification and non-responsiveness to medical therapy.
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Affiliation(s)
- Vasanthakumar Vasantha Ruban
- Department of Animal Science, School of Life Sciences, Bharathidasan University, Tiruchirappalli, 620 024, Tamil Nadu, India
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Sun S, Zhao G, Sun X, Wang Q, Yu B. [Etiology and pathogens of fungal endophthalmitis]. Zhonghua Yan Ke Za Zhi 2014; 50:808-813. [PMID: 25582205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To evaluate epidemiologic features and laboratory findings of fungal endophthalmitis in north China. METHODS Eighty-one patients (81 eyes) were diagnosed with fungal endophthalmitis at our institution from January 2000 to December 2012. Patient history, etiological agents, direct smear examination, fungal culture and pathogen sensitivity to antifungal drug were evaluated. RESULTS The fungal endophthalmitis was exogenous in 73 cases (90.1%), among which 43 had fungal keratitis in which Fusarium was the first pathogen occupied 88.4% (38 of 43 cases). Twenty seven of 73 cases (33.3%) occurred after penetrating ocular trauma and Aspergillus was the most common pathogens isolated in these cases (11 of 27; 40.7%). The left 3 cases were associated with ocular surgery. Four of the other eight eyes (9.9%) with endogenous infection had association with drug abuse. Aspergillus was the main isolated pathogens from the endogenous fungal endophthalmitis (4 of 8 cases). Hyphae were found in 52 (77.6%) of 67 smear samples by direct microscopic examination. Fungal pathogens cultured from 81 samples were identified as 10 genera and 18 species; Fusarium accounted for 60.5% (49 eyes), Aspergillus for 21.0% (17 eyes) and Candida for 6.2% (5/81). The total sensitive rate of Fusarium and Aspergillus in vitro to voriconazole, amphotericin B, ketconazole, itraconazole and fluconazole was 84.7% (33/39), 71.8% (28/39), 43.6% (17/39), 17.9% (7/39) and 7.7% (3/39) respectively. CONCLUSIONS Fungal endophthalmitis in north China is predominantly exogenous. Fungal keratitis and penetrating trauma are the main common etiological factors. Fusarium ranks first in pathogens, followed by Aspergillus and Candida. Fusarium was the first pathogen of exogenous fungal endophthalmitis caused by fungal keratitis. Aspergillus was the most common isolated pathogens from exogenous fungal endophthalmitis caused by penetrating ocular trauma and it also was the first pathogen of endogenous fungal endophthalmitis. Microscopic detection of hyphae from samples is helpful in the diagnosis. Fusarium ranks first in pathogens, followed by Aspergillus. They both are more sensitive to voriconazole and amphotericin B than ketconazole, fluconazole and itraconazole.
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Affiliation(s)
- Shiying Sun
- Qingdao Eye Hospital, Shandong Eye Institute, Shandong Academy of Medical Sciences, Qingdao 266071, China
| | - Ge Zhao
- Qingdao Eye Hospital, Shandong Eye Institute, Shandong Academy of Medical Sciences, Qingdao 266071, China
| | - Xiaoyan Sun
- Qingdao Eye Hospital, Shandong Eye Institute, Shandong Academy of Medical Sciences, Qingdao 266071, China
| | - Qian Wang
- Qingdao Eye Hospital, Shandong Eye Institute, Shandong Academy of Medical Sciences, Qingdao 266071, China
| | - Bin Yu
- Qingdao Eye Hospital, Shandong Eye Institute, Shandong Academy of Medical Sciences, Qingdao 266071, China.
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Lin Z, Xu S, Que Y, Wang J, Comstock JC, Wei J, McCord PH, Chen B, Chen R, Zhang M. Species-specific detection and identification of fusarium species complex, the causal agent of sugarcane pokkah boeng in China. PLoS One 2014; 9:e104195. [PMID: 25141192 PMCID: PMC4139266 DOI: 10.1371/journal.pone.0104195] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Accepted: 07/05/2014] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND Pokkah boeng disease caused by the Fusarium species complex results in significant yield losses in sugarcane. Thus, the rapid and accurate detection and identification of the pathogen is urgently required to manage and prevent the spreading of sugarcane pokkah boeng. METHODS A total of 101 isolates were recovered from the pokkah boeng samples collected from five major sugarcane production areas in China throughout 2012 and 2013. The causal pathogen was identified by morphological observation, pathogenicity test, and phylogenetic analysis based on the fungus-conserved rDNA-ITS. Species-specific TaqMan real-time PCR and conventional PCR methods were developed for rapid and accurate detection of the causal agent of sugarcane pokkah boeng. The specificity and sensitivity of PCR assay were also evaluated on a total of 84 isolates of Fusarium from China and several isolates from other fungal pathogens of Sporisorium scitamineum and Phoma sp. and sugarcane endophyte of Acremonium sp. RESULT Two Fusarium species (F. verticillioides and F. proliferatum) that caused sugarcane pokahh boeng were identified by morphological observation, pathogenicity test, and phylogenetic analysis. Species-specific TaqMan PCR and conventional PCR were designed and optimized to target their rDNA-ITS regions. The sensitivity of the TaqMan PCR was approximately 10 pg of fungal DNA input, which was 1,000-fold over conventional PCR, and successfully detected pokkah boeng in the field-grown sugarcane. CONCLUSIONS/SIGNIFICANCE This study was the first to identify two species, F. verticillioides and F. proliferatum, that were causal pathogens of sugarcane pokkah boeng in China. It also described the development of a species-specific PCR assay to detect and confirm these pathogens in sugarcane plants from mainland China. This method will be very useful for a broad range of research endeavors as well as the regulatory response and management of sugarcane pokkah boeng.
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Affiliation(s)
- Zhenyue Lin
- Guangxi University, Nanning, Guangxi, China
- Fujian Agriculture and Forestry University, Fuzhou, China
| | | | - Youxiong Que
- Fujian Agriculture and Forestry University, Fuzhou, China
| | - Jihua Wang
- Guangxi University, Nanning, Guangxi, China
| | - Jack C. Comstock
- USDA-ARS-Sugarcane Field Station, Canal Point, Florida, United States of America
| | - Jinjin Wei
- Fujian Agriculture and Forestry University, Fuzhou, China
| | - Per H. McCord
- USDA-ARS-Sugarcane Field Station, Canal Point, Florida, United States of America
| | | | - Rukai Chen
- Fujian Agriculture and Forestry University, Fuzhou, China
| | - Muqing Zhang
- Guangxi University, Nanning, Guangxi, China
- Fujian Agriculture and Forestry University, Fuzhou, China
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Nucci M, Varon AG, Garnica M, Akiti T, Barreiros G, Trope BM, Nouér SA. Increased incidence of invasive fusariosis with cutaneous portal of entry, Brazil. Emerg Infect Dis 2014; 19:1567-72. [PMID: 24050318 PMCID: PMC3810727 DOI: 10.3201/eid1910.120847] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Most cases of infection with Fusarium spp. fungi involved primary skin lesions. Invasive fusariosis (IF) is an infection with Fusarium spp. fungi that primarily affects patients with hematologic malignancies and hematopoietic cell transplant recipients. A cutaneous portal of entry is occasionally reported. We reviewed all cases of IF in Brazil during 2000–2010, divided into 2 periods: 2000–2005 (period 1) and 2006–2010 (period 2). We calculated incidence rates of IF and of superficial infections with Fusarium spp. fungi identified in patients at a dermatology outpatient unit. IF incidence for periods 1 and 2 was 0.86 cases versus 10.23 cases per 1,000 admissions (p<0.001), respectively; superficial fusarial infection incidence was 7.23 versus 16.26 positive cultures per 1,000 superficial cultures (p<0.001), respectively. Of 21 cases of IF, 14 showed a primary cutaneous portal of entry. Further studies are needed to identify reservoirs of these fungi in the community and to implement preventive measures for patients at risk.
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Takahashi T, Kida J, Matsumoto K, Uemura M, Shintani T, Imataki O, Nakai H, Morikami T, Kubota Y, Matsuoka Y, Taoka T. [Picture in clinical hematology no. 71: Case of fungemia caused by Fusarium complicated with intractable acute myeloid leukemia]. Rinsho Ketsueki 2014; 55:287. [PMID: 24681930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
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Schäfer K, Di Pietro A, Gow NAR, MacCallum D. Murine model for Fusarium oxysporum invasive fusariosis reveals organ-specific structures for dissemination and long-term persistence. PLoS One 2014; 9:e89920. [PMID: 24587124 PMCID: PMC3937399 DOI: 10.1371/journal.pone.0089920] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Accepted: 01/28/2014] [Indexed: 12/04/2022] Open
Abstract
The soil-borne plant pathogen Fusarium oxysporum causes life-threatening invasive fusariosis in immunocompromised individuals. The mechanism of infection in mammalian hosts is largely unknown. In the present study we show that the symptoms of disseminated fusariosis caused by F. oxysporum in immunosuppressed mice are remarkably similar to those reported in humans. Distinct fungal structures were observed inside the host, depending on the infected organ. Invasive hyphae developed in the heart and kidney, causing massive colonization of the organs. By contrast, chlamydospore-like survival structures were found in lung, spleen and liver. Systemically infected mice also developed skin and eye infections, as well as thrombosis and necrosis in the tail. We further show that F. oxysporum can disseminate and persist in the organs of immunocompetent animals, and that these latent infections can lead to lethal systemic fusariosis if the host is later subjected to immunosuppressive treatment.
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Affiliation(s)
- Katja Schäfer
- Departamento de Genética, Universidad de Córdoba, Córdoba, Spain
- * E-mail:
| | | | - Neil A. R. Gow
- Aberdeen Fungal Group, Institute of Medical Sciences, Aberdeen, United Kingdom
| | - Donna MacCallum
- Aberdeen Fungal Group, Institute of Medical Sciences, Aberdeen, United Kingdom
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Fang Z, Eule-Nashoba A, Powers C, Kono TY, Takuno S, Morrell PL, Smith KP. Comparative analyses identify the contributions of exotic donors to disease resistance in a barley experimental population. G3 (Bethesda) 2013; 3:1945-53. [PMID: 24048643 PMCID: PMC3815057 DOI: 10.1534/g3.113.007294] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Accepted: 09/03/2013] [Indexed: 11/18/2022]
Abstract
Introgression of novel genetic variation into breeding populations is frequently required to facilitate response to new abiotic or biotic pressure. This is particularly true for the introduction of host pathogen resistance in plant breeding. However, the number and genomic location of loci contributed by donor parents are often unknown, complicating efforts to recover desired agronomic phenotypes. We examined allele frequency differentiation in an experimental barley breeding population subject to introgression and subsequent selection for Fusarium head blight resistance. Allele frequency differentiation between the experimental population and the base population identified three primary genomic regions putatively subject to selection for resistance. All three genomic regions have been previously identified by quantitative trait locus (QTL) and association mapping. Based on the degree of identity-by-state relative to donor parents, putative donors of resistance alleles were also identified. The successful application of comparative population genetic approaches in this barley breeding experiment suggests that the approach could be applied to other breeding populations that have undergone defined breeding and selection histories, with the potential to provide valuable information for genetic improvement.
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Affiliation(s)
- Zhou Fang
- Department of Agronomy and Plant Genetics, University of Minnesota, St. Paul, Minnesota 55108
| | - Amber Eule-Nashoba
- Department of Agronomy and Plant Genetics, University of Minnesota, St. Paul, Minnesota 55108
| | - Carol Powers
- Department of Agronomy and Plant Genetics, University of Minnesota, St. Paul, Minnesota 55108
| | - Thomas Y. Kono
- Department of Agronomy and Plant Genetics, University of Minnesota, St. Paul, Minnesota 55108
| | - Shohei Takuno
- Graduate University for Advanced Studies, Hayama, Kanagawa 240-0193, Japan
| | - Peter L. Morrell
- Department of Agronomy and Plant Genetics, University of Minnesota, St. Paul, Minnesota 55108
| | - Kevin P. Smith
- Department of Agronomy and Plant Genetics, University of Minnesota, St. Paul, Minnesota 55108
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Homa M, Shobana CS, Singh YRB, Manikandan P, Selvam KP, Kredics L, Narendran V, Vágvölgyi C, Galgóczy L. Fusarium keratitis in South India: causative agents, their antifungal susceptibilities and a rapid identification method for the Fusarium solani species complex. Mycoses 2013; 56:501-511. [PMID: 23437826 DOI: 10.1111/myc.12062] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2012] [Revised: 01/23/2013] [Accepted: 01/23/2013] [Indexed: 09/07/2023]
Abstract
Seventy Fusarium isolates derived from human keratomycosis were identified based on partial sequences of the β-tubulin (β-TUB) and translation elongation factor 1α (EF-1α) genes. Most of the isolates were confirmed as members of the F. solani species complex (75.71%), followed by the F. dimerum species complex (8.57%), the F. fujikuroi species complex (8.57%), the F. oxysporum species complex (4.29%) and the F. incarnatum-equiseti species complex (2.86%). A combined phylogenetic tree was estimated including all the 70 isolates. Isolates belonging to different species complexes formed separate clades. In this study, we also report the first isolation of F. napiforme from human keratomycosis. A new method based on a specific EcoRI restriction site in the EF-1α gene was developed for the rapid identification of F. solani. In vitro antifungal susceptibilities of the isolates to seven antifungals were determined by broth microdilution method. Terbinafine, natamycin and amphotericin B proved to be the most effective drugs, followed by voriconazole. The minimal inhibitory concentrations of clotrimazole, econazole and itraconazole were generally high (≥64 μg ml(-1) ). The interactions between the two most effective antifungals (natamycin and terbinafine) were determined by checkerboard microdilution method. Synergism (71.8%) or no interaction (28.2%) was revealed between the two compounds.
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Affiliation(s)
- Mónika Homa
- Faculty of Science and Informatics, Department of Microbiology, University of Szeged, H-6726 Szeged, Hungary
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Affiliation(s)
- Amir Sharon
- Department of Molecular Biology and Ecology of Plants, Tel Aviv University, Tel Aviv, Israel.
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50
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Grenier B, Bracarense APFL, Schwartz HE, Lucioli J, Cossalter AM, Moll WD, Schatzmayr G, Oswald IP. Biotransformation approaches to alleviate the effects induced by fusarium mycotoxins in swine. J Agric Food Chem 2013; 61:6711-6719. [PMID: 23758213 DOI: 10.1021/jf400213q] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Mycotoxin mitigation is of major interest as ingestion of mycotoxins results in poor animal health, decreased productivity, as well as substantial economic losses. A feed additive (FA) consisting of a combination of bacteria (Eubacterium BBSH797) and enzyme (fumonisin esterase FumD) was tested in pigs for its ability to neutralize the effects of mono- and co-contaminated diets with deoxynivalenol (DON) and fumonisins (FB) on hematology, biochemistry, tissue morphology, and immune response. Forty-eight animals, allocated into eight groups, received one of eight diets for 35 days: a control diet, a diet contaminated with either DON (3 mg/kg) or FB (6 mg/kg), or both toxins, and the same four diets with FA. Inclusion of FA restored the circulating number of neutrophils of piglets fed the FB and DON + FB diets. Similarly, FA counteracted the minor changes observed on plasma concentrations of albumin and creatinine. In lung, the lesions induced by the ingestion of FB in mono- and co-contaminated diets were no longer observed after addition of FA in these diets. Lesions recorded in the liver of pigs fed either of the contaminated diets with FA were partly reduced, and the increased hepatocyte proliferation was totally neutralized when FA was present in the co-contaminated diet. After 35 days of exposure, the development of the vaccinal response was significantly improved in animals fed diets supplemented with FA, as shown by results of lymphocyte proliferation, cytokine expression in spleen, and the production of specific Ig. Similarly, in jejunum of animals fed diets with FA, occurrence of lesions and upregulation of pro-inflammatory cytokines were much less obvious. The ameliorative effects provided by FA suggest that this approach would be suitable in the control of DON and FB that commonly co-occur in feed.
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Affiliation(s)
- Bertrand Grenier
- INRA, UMR 1331 ToxAlim, Research Centre in Food Toxicology, 180 Chemin de Tournefeuille BP 93173, 31027 Toulouse Cedex 3, Toulouse, France
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