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Gupta S, Pathak B, Ravi RK. Biodegradation of Naphthalene Using Biosurfactant Producing Fusarium proliferatum WC416 Isolated from Refinery Effluent. Appl Biochem Biotechnol 2024; 196:2549-2565. [PMID: 36689160 DOI: 10.1007/s12010-023-04364-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/10/2023] [Indexed: 01/24/2023]
Abstract
Naphthalene is one of the priority pollutants in the environment which can effectively managed through bioremediation approach. Here fungal remediation of PAHs may be cost-effective technology. In present research study, biodegradation of naphthalene at varying concentrations in laboratory scale was investigated using Fusarium proliferatum WC416 isolated from refinery effluent. Degradation of naphthalene was computed by high-performance liquid chromatography (HPLC) and gas chromatography -mass spectroscopy (GC-MS). The results show that Fusarium proliferatum WC416 has effectively degraded the naphthalene to salicylamide and salicylic acid. The highest degradation achieved was 83% for the concentration of 100 ppm followed 74% and 63% for the concentration of 250 ppm and 500 ppm respectively. The intermediates confirmed by GC-MS were salicylic acid (m/z identification 138) and salicylamide (m/z identification 137). During the study, fungal growth, COD, pH, and surface tension have been monitored, which show the continuous variation that indicates progressive biodegradation of naphthalene. The qualitative assessment of extracellular enzymes shows positive activity for lipase, manganese peroxidase, and laccase. The present study also assessed the biosurfactant production by fungus which was characterized as sophorolipid in nature. The study suggests that Fusarium proliferatum WC416 would be an efficient degrader of naphthalene for environmental clean-up.
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Affiliation(s)
- Shalini Gupta
- School of Environment and Sustainable Development, Central University of Gujarat, Sector 30, Gandhinagar, 382030, Gujarat, India.
| | - Bhawana Pathak
- School of Environment and Sustainable Development, Central University of Gujarat, Sector 30, Gandhinagar, 382030, Gujarat, India
| | - Raman Kumar Ravi
- Department of Molecular Biology, Zen Health Services, Gurugram, Haryana- 122003, India
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Uwaremwe C, Bao W, Daoura BG, Mishra S, Zhang X, Shen L, Xia S, Yang X. Shift in the rhizosphere soil fungal community associated with root rot infection of Plukenetia volubilis Linneo caused by Fusarium and Rhizopus species. Int Microbiol 2023:10.1007/s10123-023-00470-x. [PMID: 38158469 DOI: 10.1007/s10123-023-00470-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 11/14/2023] [Accepted: 12/08/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND Plukenetia volubilis Linneo is an oleaginous plant belonging to the family Euphorbiaceae. Due to its seeds containing a high content of edible oil and rich in vitamins, P. volubilis is cultivated as an economical plant worldwide. However, the cultivation and growth of P. volubilis is challenged by phytopathogen invasion leading to production loss. METHODS In the current study, we tested the pathogenicity of fungal pathogens isolated from root rot infected P. volubilis plant tissues by inoculating them into healthy P. volubilis seedlings. Metagenomic sequencing was used to assess the shift in the fungal community of P. volubilis rhizosphere soil after root rot infection. RESULTS Four Fusarium isolates and two Rhizopus isolates were found to be root rot causative agents of P. volubilis as they induced typical root rot symptoms in healthy seedlings. The metagenomic sequencing data showed that root rot infection altered the rhizosphere fungal community. In root rot infected soil, the richness and diversity indices increased or decreased depending on pathogens. The four most abundant phyla across all samples were Ascomycota, Glomeromycota, Basidiomycota, and Mortierellomycota. In infected soil, the relative abundance of each phylum increased or decreased depending on the pathogen and functional taxonomic classification. CONCLUSIONS Based on our results, we concluded that Fusarium and Rhizopus species cause root rot infection of P. volubilis. In root rot infected P. volubilis, the shift in the rhizosphere fungal community was pathogen-dependent. These findings may serve as a key point for a future study on the biocontrol of root rot of P. volubilis.
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Affiliation(s)
- Constantine Uwaremwe
- CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, 666303, Yunnan, China.
| | - Wenjie Bao
- CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, 666303, Yunnan, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Bachir Goudia Daoura
- Department of Biology, Faculty of Sciences and Technology, Dan Dicko Dankoulodo University, POBox, 465, Maradi, Niger
| | - Sandhya Mishra
- CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, 666303, Yunnan, China
- National Field Scientific Observation and Research Station of Forest Ecosystem in Ailao Mountain, Yunnan, 665000, China
| | - Xianxian Zhang
- CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, 666303, Yunnan, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Lingjie Shen
- College of Biology and Chemistry, Pu'er University, Pu'er, 665000, China
| | - Shangwen Xia
- CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, 666303, Yunnan, China
- National Field Scientific Observation and Research Station of Forest Ecosystem in Ailao Mountain, Yunnan, 665000, China
| | - Xiaodong Yang
- CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, 666303, Yunnan, China.
- National Field Scientific Observation and Research Station of Forest Ecosystem in Ailao Mountain, Yunnan, 665000, China.
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Al-Otibi F. The Antifungal Activities of Silver Nano-Aggregates Biosynthesized from the Aqueous Extract and the Alkaline Aqueous Fraction of Rhazya stricta against Some Fusarium Species. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 14:88. [PMID: 38202544 PMCID: PMC10780319 DOI: 10.3390/nano14010088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 12/23/2023] [Accepted: 12/23/2023] [Indexed: 01/12/2024]
Abstract
Rhazya stricta is a major medicinal species used in indigenous medicinal herbal medications in South Asia, the Middle East, Iran, and Iraq to treat a variety of ailments. The current study aimed to investigate the antifungal properties of biosynthesized silver nanoparticles (AgNPs) made from R. stricta aqueous extract and its alkaline aqueous fraction. Fourier transform infrared spectroscopy (FTIR), UV-vis spectrophotometry, dynamic light scattering (DLS), and transmitted electron microscopy (TEM) were used to characterize AgNPs. The produced extracts and AgNPs were tested for their antifungal efficacy against four Fusarium spp. All of the characterization experiments proved the biosynthesis of targeted AgNPs. FTIR showed a wide distribution of hydroxyl, amino, carboxyl, and alkyl functional groups among all preparations. The DLS results showed that the produced Aq-AgNPs and the Alk-AgNPs had an average size of 95.9 nm and 54.04 nm, respectively. On the other hand, TEM results showed that the Aq-AgNPs and Alk-AgNPs had average diameters ranging from 21 to 90 nm and 7.25 to 25.32 nm. Both AgNPs absorbed UV light on average at 405 nm and 415 nm, respectively. Regarding the fungicidal activity, the highest doses of Aq-extract and Aq-AgNPs inhibited the mycelial growth of F. incarnatum (19.8%, 87.5%), F. solani (28.1%, 72.3%), F. proliferatum (37.5%, 75%), and F. verticillioides (27.1%, 62.5%), respectively (p < 0.001). Interestingly, the Alk-fraction had stronger inhibition than the biosynthesized AgNPs, which resulted in complete inhibition at the doses of 10% and 20% (p < 0.001). Furthermore, microscopic analysis demonstrated that both AgNPs caused obvious morphological alterations in the treated organisms when compared to the control. In conclusion, R. stricta's Aq-extract, alkaline fraction, and their biosynthesized AgNPs show substantial antifungal efficacy against several Fusarium spp. It is the first study to highlight the prospective biological activities of R. stricta Aq-extract and its alkaline fraction against F. incarnatum, F. proliferatum, and F. verticillioides. In addition, it is the first opportunity to deeply investigate the ultrastructural changes induced in the Fusarium species treated with R. stricta crude Aq-extract and its biosynthesized AgNPs. More studies are required to investigate their biological effect against other Fusarium or fungal species.
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Affiliation(s)
- Fatimah Al-Otibi
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
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Hasan MF, Islam MA, Sikdar B. First report on molecular identification of Fusarium species causing fruit rot of mandarin ( Citrus reticulata) in Bangladesh. F1000Res 2023; 9:1212. [PMID: 36865764 PMCID: PMC9971657 DOI: 10.12688/f1000research.26464.1] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/29/2020] [Indexed: 11/20/2022] Open
Abstract
Background: Fusarium rot is a newly introduced, devastating disease of citrus fruits. The current investigation was undertaken to characterize the microbes responsible for fruit rot in Citrus reticulata. Methods: Pathogens were isolated from infected citrus fruits using morphological and molecular approaches. For confirmation of the isolated fungi, polymerase chain reaction (PCR) amplification and internal transcribed spacer gene sequencing techniques were used. Results: The isolated fungus was grown on potato dextrose agar for three days and it produced clamydospores, hyphae and macroconidia. PCR amplification of isolated fungal DNA gave a 650 bp product. The sequence obtained from isolated fungi had 99.42% similarity with the reference Fusarium concentricum sequence in NCBI GenBank. The obtained sequence was deposited in GenBank (Accession No. MT856371). Two isolates showed virulence capability on fresh guava, sweet orange and tomato fruits, which confirmed species identification and Koch's postulates. Artificially inoculated fungal species grown on tested fruits showed typical Fusarium species symptoms. Conclusions: Outcomes of the present study are beneficial for the detection of this detrimental disease in postharvest Citrus reticulata fruits. Further research is needed for the control of this economically important disease. This is the first study of fruit rot in Citrus reticulata caused by Fusarium in Bangladesh.
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Affiliation(s)
- Mohammed Faruk Hasan
- Department of Genetic Engineering and Biotechnology, Faculty of Biological Sciences, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Mohammed Asadul Islam
- Professor Joarder DNA & Chromosome Research Lab., Dept. of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Biswanath Sikdar
- Professor Joarder DNA & Chromosome Research Lab., Dept. of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi, 6205, Bangladesh,
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Hasan MF, Islam MA, Sikdar B. First report on molecular identification of Fusarium species causing fruit rot of mandarin ( Citrus reticulata) in Bangladesh. F1000Res 2023; 9:1212. [PMID: 36865764 PMCID: PMC9971657 DOI: 10.12688/f1000research.26464.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/10/2023] [Indexed: 02/17/2023] Open
Abstract
Background: Fusarium rot is a newly introduced, devastating disease of citrus fruits. The current investigation was undertaken to characterize the microbes responsible for fruit rot in Citrus reticulata. Methods: Pathogens were isolated from infected citrus fruits using morphological and molecular approaches. For confirmation of the isolated fungi, polymerase chain reaction (PCR) amplification and internal transcribed spacer gene sequencing techniques were used. Results: The isolated fungus was grown on potato dextrose agar for three days and it produced clamydospores, hyphae and macroconidia. PCR amplification of isolated fungal DNA gave a 650 bp product. The sequence obtained from isolated fungi had 99.42% similarity with the reference Fusarium concentricum sequence in NCBI GenBank. The obtained sequence was deposited in GenBank (Accession No. MT856371). Two isolates showed virulence capability on fresh guava, sweet orange and tomato fruits, which confirmed species identification and Koch's postulates. Artificially inoculated fungal species grown on tested fruits showed typical Fusarium species symptoms. Conclusions: Outcomes of the present study are beneficial for the detection of this detrimental disease in postharvest Citrus reticulata fruits. Further research is needed for the control of this economically important disease. This is the first study of fruit rot in Citrus reticulata caused by Fusarium in Bangladesh.
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Affiliation(s)
- Mohammed Faruk Hasan
- Department of Genetic Engineering and Biotechnology, Faculty of Biological Sciences, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Mohammed Asadul Islam
- Professor Joarder DNA & Chromosome Research Lab., Dept. of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Biswanath Sikdar
- Professor Joarder DNA & Chromosome Research Lab., Dept. of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi, 6205, Bangladesh,
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Potekhina RM, Tarasova EY, Matrosova LE, Khammadov NI, Saifutdinov AM, Ermolaeva OK, Tanaseva SA, Mishina NN, Nigmatulin GN, Mukharlyamova AZ, Smolentsev SY, Semenov EI. A Case of Laying Hens Mycosis Caused by Fusarium proliferatum. Vet Med Int 2023; 2023:5281260. [PMID: 37168542 PMCID: PMC10164870 DOI: 10.1155/2023/5281260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 01/09/2023] [Accepted: 04/18/2023] [Indexed: 05/13/2023] Open
Abstract
In this article, we present the first case report of a chicken mycosis caused by F. proliferatum occurred on a private farm in the Russian Federation. Lesions on the skin of the legs and scallops were reported. The object of this study was samples of feed and pathological material from sick hens-layers. Mycological analysis included determination of the total number of fungi (TNF) and identification and determination of the toxicity and pathogenicity of the isolates. The identification of the isolate was carried out taking into account direct microscopy, morphological features, and the method of molecular genetic analysis. Microscopic fungi of the genus Penicillium and Rhizopus were isolated by mycological analysis of the feed. The test feed was nontoxic. Mycological examination of pathological material (scrapings from the combs and affected legs) identified an isolate of Fusarium proliferatum, which showed toxicity on biological objects (protozoa, rabbits) and pathogenicity (white mice). Dermal application of F. proliferatum suspension was accompanied by reddening of the rabbit skin. Intraperitoneal injection of fungal spores caused mycosis in white mice. Polymerase chain reaction (PCR) made it possible to identify this type of microscopic fungus (F. proliferatum) with high accuracy in the samples under study. The research results allow us to consider F. proliferatum as a cause of poultry disease against the background of predisposing factors in the form of desquamation of the stratum corneum of the skin against the background of immunosuppression and metabolic disorders caused by an imbalance in the diet.
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Affiliation(s)
- Ramziya M. Potekhina
- Federal Center for Toxicological, Radiation and Biological Safety, Kazan 420075, Nauchnyi Gorodok-2, Russia
| | - Evgenya Yu. Tarasova
- Federal Center for Toxicological, Radiation and Biological Safety, Kazan 420075, Nauchnyi Gorodok-2, Russia
| | - Lilia E. Matrosova
- Federal Center for Toxicological, Radiation and Biological Safety, Kazan 420075, Nauchnyi Gorodok-2, Russia
| | - Nail I. Khammadov
- Federal Center for Toxicological, Radiation and Biological Safety, Kazan 420075, Nauchnyi Gorodok-2, Russia
| | - Alexander M. Saifutdinov
- Federal Center for Toxicological, Radiation and Biological Safety, Kazan 420075, Nauchnyi Gorodok-2, Russia
| | - Olga K. Ermolaeva
- Federal Center for Toxicological, Radiation and Biological Safety, Kazan 420075, Nauchnyi Gorodok-2, Russia
| | - Svetlana A. Tanaseva
- Federal Center for Toxicological, Radiation and Biological Safety, Kazan 420075, Nauchnyi Gorodok-2, Russia
| | - Nailya N. Mishina
- Federal Center for Toxicological, Radiation and Biological Safety, Kazan 420075, Nauchnyi Gorodok-2, Russia
| | - Gali N. Nigmatulin
- Federal Center for Toxicological, Radiation and Biological Safety, Kazan 420075, Nauchnyi Gorodok-2, Russia
| | - Aisylu Z. Mukharlyamova
- Federal Center for Toxicological, Radiation and Biological Safety, Kazan 420075, Nauchnyi Gorodok-2, Russia
| | | | - Eduard I. Semenov
- Federal Center for Toxicological, Radiation and Biological Safety, Kazan 420075, Nauchnyi Gorodok-2, Russia
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Costa J, Sepúlveda M, Gallardo V, Cayún Y, Santander C, Ruíz A, Reyes M, Santos C, Cornejo P, Lima N, Santos C. Antifungal Potential of Capsaicinoids and Capsinoids from the Capsicum Genus for the Safeguarding of Agrifood Production: Advantages and Limitations for Environmental Health. Microorganisms 2022; 10:microorganisms10122387. [PMID: 36557640 PMCID: PMC9788535 DOI: 10.3390/microorganisms10122387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/21/2022] [Accepted: 11/29/2022] [Indexed: 12/05/2022] Open
Abstract
Opportunistic pathogenic fungi arise in agricultural crops as well as in surrounding human daily life. The recent increase in antifungal-resistant strains has created the need for new effective antifungals, particularly those based on plant secondary metabolites, such as capsaicinoids and capsinoids produced by Capsicum species. The use of such natural compounds is well-aligned with the One Health approach, which tries to find an equilibrium among people, animals, and the environment. Considering this, the main objective of the present work is to review the antifungal potential of capsaicinoids and capsinoids, and to evaluate the environmental and health impacts of biofungicides based on these compounds. Overall, capsaicinoids and their analogues can be used to control pathogenic fungi growth in plant crops, as eco-friendly alternatives to pest management, and assist in the conservation and long-term storage of agrifood products. Their application in different stages of the agricultural and food production chains improves food safety, nutritional value, and overcomes antimicrobial resistance, with a lower associated risk to humans, animals, and the environment than that of synthetic fungicides and pesticides. Nevertheless, research on the effect of these compounds on bee-like beneficial insects and the development of new preservatives and packaging materials is still necessary.
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Affiliation(s)
- Jéssica Costa
- Departamento de Biologia, Instituto de Ciências Biológicas-ICB, Universidade Federal do Amazonas, Av. Rodrigo Otávio Jordão Ramos 3000, Bloco 01, Manaus 69077-000, AM, Brazil
| | - Marcela Sepúlveda
- Department of Chemical Science and Natural Resources, Universidad de La Frontera, Temuco 4811-230, Chile
| | - Víctor Gallardo
- Programa de Doctorado en Ciencias de Recursos Naturales, Universidad de La Frontera, Temuco 4811-230, Chile
| | - Yasna Cayún
- Department of Chemical Science and Natural Resources, Universidad de La Frontera, Temuco 4811-230, Chile
| | - Christian Santander
- Department of Chemical Science and Natural Resources, Universidad de La Frontera, Temuco 4811-230, Chile
- Environmental Engineering and Biotechnology Group, Faculty of Environmental Science and EULA-Chile Center, Universidad de Concepción, Concepción 4070-411, Chile
| | - Antonieta Ruíz
- Department of Chemical Science and Natural Resources, Universidad de La Frontera, Temuco 4811-230, Chile
| | - Marjorie Reyes
- Department of Chemical Science and Natural Resources, Universidad de La Frontera, Temuco 4811-230, Chile
| | - Carla Santos
- CEB-Centre of Biological Engineering, Micoteca da Universidade do Minho (MUM), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- LABBELS (Associate Laboratory, Braga/Guimarães), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Pablo Cornejo
- Escuela de Agronomía, Facultad de Ciencias Agronómicas y de los Alimentos, Pontificia Universidad Católica de Valparaíso, Quillota 2260-000, Chile
| | - Nelson Lima
- CEB-Centre of Biological Engineering, Micoteca da Universidade do Minho (MUM), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- LABBELS (Associate Laboratory, Braga/Guimarães), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Cledir Santos
- Department of Chemical Science and Natural Resources, Universidad de La Frontera, Temuco 4811-230, Chile
- Correspondence: ; Tel.: +56-452-596-726
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Haghani I, Shams-Ghahfarokhi M, Dalimi Asl A, Shokohi T, Hedayati MT. Prevalence, genetic diversity and antifungal susceptibility profiles of F. fujikuroi, F. solani, and Fusarium incarnatum-equiseti species complexes from onychomycosis in North of Iran. Mycoses 2022; 65:1030-1039. [PMID: 35775829 DOI: 10.1111/myc.13489] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 05/25/2022] [Accepted: 06/25/2022] [Indexed: 11/27/2022]
Abstract
Onychomycosis, a nail fungal infection, is normally caused by dermatophytes. However, yeasts and non-dermatophyte molds (NDM) are among pathogens that cause nail disease. Regarding, this study aimed to describe the molecular epidemiology of Fusarium onychomycosis in the North of Iran. 257 nail samples collected from the patients clinically suspected of onychomycosis were subjected to direct microscopy, calcofluor white staining, and culture. Fusarium isolates were identified at a species level through determination of multi-locus sequences for internal transcribed spacer and translation elongation factor 1 alpha. Based on the findings, Fusarium species were isolated from onychomycosis patients (n=27). According to a previous partial genes analysis, the species in the resent study belonged to the members of F. fujikuroi species complex (n=14), Fusarium incarnatum-equiseti species complex (n=1) and F. solani species complex (n=12). In rhis study, F. proliferatum was the dominant Fusarium species collected from the samples. The correct identification of Fusarium species is essential regarding the increased prevalence of Fusarium onychomycosis and the inherent resistance of these agents to a wide spectrum of antifungals. The obtained results indicated variation in the epidemiology of Fusarium species isolated from onychomycosis. Moreover, the minimum inhibitory concentration (MIC) of luliconazole and lanoconazole was in the range of 0.001-1 μg/mL, with the geometric mean of MICs obtained at 0.0103 and 0.0343 μg/mL against Fusarium species, respectively. These findings can increase researchers' knowledge regarding diversity of species, distribution of onychomycosis, and the choice of a proper treatment.
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Affiliation(s)
- Iman Haghani
- Department of Mycology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.,Department of Medical Mycology and Invasive Fungi Research Center, Communicable Diseases Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | | | - Abdolhossein Dalimi Asl
- Department of Medical Parasitology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Tahereh Shokohi
- Department of Medical Mycology and Invasive Fungi Research Center, Communicable Diseases Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mohammad Taghi Hedayati
- Department of Medical Mycology and Invasive Fungi Research Center, Communicable Diseases Institute, Mazandaran University of Medical Sciences, Sari, Iran
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Zhang CQ, Chen XY, Liu YH, Dai D. First Report of Seedling Stem Rot on Jinxianlian (Anoectochilus roxburghii) Caused by Fusarium oxysporum in China. PLANT DISEASE 2021; 106:1991. [PMID: 34874176 DOI: 10.1094/pdis-09-21-2066-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Anoectochilus roxburghii is an important Chinese herbal medicine plant belonging to Orchidaceae and known as Jinxianlian. This orchid is cultivated and mostly adopted to treat diabetes and hepatitis. About 2 billion artificially cultivated seedlings of Jinxianlian are required each year and approximately $600 million in fresh A. roxburghii seedlings is produced in China. From 2011, sporadic occurrence of stem rot on Jinxianlian have been observed in greenhouses in Jinhua City (N29°05', E119°38'), Zhejiang Province. In 2018, nearly 30% of seedlings of Jinxianlian grown in greenhouse conditions were affected by stem rot in Jinhua City. Symptoms initially occurred in the stem at the soil line causing dark discoloration lesions, rotted tissues, wilting, and eventually leading to the death of the plants. A total of 23 diseased seedlings collected from seven different greenhouses were surface sterilized with 1.5% sodium hypochlorite for 3 min, then rinsed in water. Pieces of tissues disinfected from each sample were plated on 2% potato dextrose agar (PDA), and incubated at 25°C in the dark for 5 days (Kirk et al. 2008). A total of 19 isolates were recovered. They developed colonies with purple mycelia and beige or orange colors after 7 days of incubation under 25°C on PDA and carnation leaf agar (CLA) media (Kirk et al. 2008; Zhang et al. 2016). Colonies on PDA had an average radial growth rate of 3.1 to 4.0 mm /d at 25°C. Colony surface was pale vinaceous, floccose with abundant aerial mycelium. On CLA, aerial mycelium was sparse with abundant bright orange sporodochia forming on the carnation leaves. Microconidia were hyaline and oval-ellipsoid to cylindrical (3.7 to 9.3 × 1.3 to 2.9 μm) (n=19). Macroconidia were 3 to 5 septate and fusoid-subulate with a pedicellate base (27.4 to 35.6 × 3.2 to 4.2 μm) (n=19). These morphological features were consistent with Fusarium oxysporum (Sun et al. 2008; Lombard et al., 2019). To confirm the identification based on these morphological features, the internal transcribed spacer region (ITS) and translation elongation factor1 (TEF) were amplified from the DNA of 3 out of 19 isolates chosen at random respectively using the set primer ITS1/ITS4 and EF1/ EF2 (Sun, S., et al. 2018; Lombard et al., 2019). BLAST analysis revealed that the ITS sequences (OK147619, OK147620, OK147621) had 99% identity to that of F. oxysporum isolate JJF2 (GenBank MN626452) and TEF sequence (OK155999, OK156000, OK156001) had 100% identity to that of F. oxysporum isolate gss100 (GenBank MH341210). A multilocus phylogenetic analysis by Bayesian inference (BI) and maximum likelihood (ML) trees based on ITS and TEF indicated that the pathogen grouped consistently with F. oxysporum. Three out of 19 isolates chosen at random were selected to evaluate pathogenicity. Uninfected healthy A. roxburghii seedlings about 40 day-old planted in sterilized substrates were sprayed with distilled water containing 2 x 106 conidia per ml suspensions as inoculums, and plants sprayed with distilled water alone served as controls. Plants were then incubated at 25°C and 85% relative humidity. Ten plants were inoculated for each isolate. After 10 days, all plants inoculated developed stem rot symptoms, while control plants remained healthy. Cultures of Fusarium spp. were re-isolated only from inoculated plants with the frequency of 100% and re-identified by morphological characteristics as F. oxysporum, fulfilling Koch's postulates. To the best of our knowledge, this is the first report of F. oxysporum causing stem rot on A. roxburghii seedlings. As F. oxysporum is a devastating pathogenic fungus with a broad host range, measures should be taken in advance to manage stem rot of A. roxburghii.
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Affiliation(s)
- Chuan-Qing Zhang
- Zhejiang Agriculture&Forest University, Crop Protection, Huanchengbei Road 88, Lin'an, China, 311300;
| | - X Y Chen
- Zhejiang A&F Universit, No. 88 ring road north, Hangzhou, zhejiang, China, 311300;
| | - Ya-Hui Liu
- Zhejiang Agriculture&Forest University, Crop Protection, Lin'an, China;
| | - Dejiang Dai
- Institute for the Control of Agrochemicals of Zhejiang Province, hangzhou, China;
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Sun H, Liu X, Pei J, Hao D, Li X, Chen D, Shen Y, Xu Z. Identification, characterisation and inhibition of
Geotrichum pseudocandidum
spoilage microbe in
Gastrodia elata
tuber. Int J Food Sci Technol 2021. [DOI: 10.1111/ijfs.15361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Haiyan Sun
- Key Laboratory of Life Resources of Shaanxi Province Shaanxi Key Laboratory of Resource Biology College of Biological Science and Engineering Shaanxi University of Technology Hanzhong China
| | - Xiao Liu
- Key Laboratory of Life Resources of Shaanxi Province Shaanxi Key Laboratory of Resource Biology College of Biological Science and Engineering Shaanxi University of Technology Hanzhong China
| | - Jinjin Pei
- Key Laboratory of Life Resources of Shaanxi Province Shaanxi Key Laboratory of Resource Biology College of Biological Science and Engineering Shaanxi University of Technology Hanzhong China
| | - Danqing Hao
- Key Laboratory of Life Resources of Shaanxi Province Shaanxi Key Laboratory of Resource Biology College of Biological Science and Engineering Shaanxi University of Technology Hanzhong China
| | - Xinsheng Li
- Key Laboratory of Life Resources of Shaanxi Province Shaanxi Key Laboratory of Resource Biology College of Biological Science and Engineering Shaanxi University of Technology Hanzhong China
| | - Dejing Chen
- Key Laboratory of Life Resources of Shaanxi Province Shaanxi Key Laboratory of Resource Biology College of Biological Science and Engineering Shaanxi University of Technology Hanzhong China
| | - Yixiao Shen
- College of Food Science Shenyang Agricultural University Shenyang China
- School of Nutrition and Food Sciences Louisiana State University Baton Rouge LA USA
| | - Zhimin Xu
- School of Nutrition and Food Sciences Louisiana State University Baton Rouge LA USA
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11
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Culturable Endophytic Fungi from Glycyrrhiza inflata Distributed in Xinjiang, China with Antifungal Activity. MICROBIOLOGY RESEARCH 2021. [DOI: 10.3390/microbiolres12040060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A total of 99 endophytic fungal isolates were obtained from the roots of Glycyrrhiza inflata, which was a traditional medicinal plant mainly distributed in Xinjiang, China. Twenty-two distinct isolates were selected for further taxonomical identification by morphological traits and internal transcribed spacer (ITS) rRNA gene sequence analysis. Eleven genera were identified, among which Aspergillus, Alternaria and Fusarium were dominant. The crude extracts of 22 distinct identified fungi were successively evaluated for their antifungal activities on three rice fungal pathogens using the method of hyphal radial growth rate. Among them, the crude extract of Alternaria an-gustiovoidea Glinf007 showed the significantly mycelial growth inhibitory activity. The results demonstrated that G. inflata contained a diversity of culturable endophytic fungi, which could produce natural antimicrobial compounds that might be of great value to the agriculture and pharmaceutical industries.
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12
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Awan UA, Meng L, Xia S, Raza MF, Zhang Z, Zhang H. Isolation, fermentation, and formulation of entomopathogenic fungi virulent against adults of Diaphorina citri. PEST MANAGEMENT SCIENCE 2021; 77:4040-4053. [PMID: 33896118 DOI: 10.1002/ps.6429] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 04/13/2021] [Accepted: 04/25/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Mycopesticides are important for integrated management of the Asian citrus psyllid, Diaphorina citri. However, there are few reports on the fermentation and formulation for mycopesticides with high virulence against D. citri. RESULTS From four different locations in South China, 12 fungal strains were isolated and classified into Beauveria bassiana (two isolates), Fusarium fujikuroi (five isolates), and Cordyceps javanica (five isolates) based on the phylogenetic analysis of ITS1-5.8S rDNA-ITS4 and morphology of colonies and conidia. Based on the highest initial virulence (86.52 ± 2.35%) and best growth characteristics, F-HY002-ACPHali was further optimized for biphasic fermentation (7.85 ± 2.62 × 109 g-1 dry substrate) with soybean meal + cottonseed flour (1:1) as the solid substrate and full light as the light/dark cycle. Furthermore, the oil-based conidial formulation was optimized with sesame oil as an effective carrier, which significantly enhanced conidial shelf life up to 16 weeks at 26 °C and 4 °C, thermo-stress (50 °C) and UV-B stress resistance, and virulence against adults of D. citri with increased mortalities and decreased LT50 in comparison to that of unformulated conidia. CONCLUSION Our results not only provide a valuable native strain with high virulence against adults of D. citri, but also imply the soybean meal + cottonseed flour as valuable solid substrate, full-light exposure as environmental stimuli for solid-state fermentation, and the sesame oil as an effective carrier for the formulation of the C. javanica. These findings will facilitate the development of a potential mycopesticide for the biological control of Asian citrus psyllid.
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Affiliation(s)
- Umar Anwar Awan
- State Key Laboratory of Agricultural Microbiology, Key Laboratory of Horticultural Plant Biology (MOE), College of Plant Science and Technology, Institute of Urban and Horticultural Entomology, Huazhong Agricultural University, Wuhan, China
| | - Lixue Meng
- School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
| | - Shuang Xia
- State Key Laboratory of Agricultural Microbiology, Key Laboratory of Horticultural Plant Biology (MOE), College of Plant Science and Technology, Institute of Urban and Horticultural Entomology, Huazhong Agricultural University, Wuhan, China
| | - Muhammad Fahim Raza
- State Key Laboratory of Agricultural Microbiology, Key Laboratory of Horticultural Plant Biology (MOE), College of Plant Science and Technology, Institute of Urban and Horticultural Entomology, Huazhong Agricultural University, Wuhan, China
| | - Zhenyu Zhang
- State Key Laboratory of Agricultural Microbiology, Key Laboratory of Horticultural Plant Biology (MOE), College of Plant Science and Technology, Institute of Urban and Horticultural Entomology, Huazhong Agricultural University, Wuhan, China
| | - Hongyu Zhang
- State Key Laboratory of Agricultural Microbiology, Key Laboratory of Horticultural Plant Biology (MOE), College of Plant Science and Technology, Institute of Urban and Horticultural Entomology, Huazhong Agricultural University, Wuhan, China
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13
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D'Agostino M, Tesse N, Lavergne RA, Pape PL, Bouchara JP, Frippiat JP, Machouart M, Debourgogne A. Characterisation of the antifungal effects of a plant-based compound, CIN-102, on the main septal filamentous fungi involved in human pathology. J Glob Antimicrob Resist 2021; 25:171-180. [PMID: 33798742 DOI: 10.1016/j.jgar.2021.03.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 12/14/2020] [Accepted: 03/24/2021] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVES Today, the increase of invasive fungal infections and the emergence of resistant strains are observed in medical practice. New antifungals are expected, and the plant world offers a panel of potentially active molecules. CIN-102 is a mixture of seven different compounds of plant origin developed from the formulation of cinnamon essential oil. METHODS The in vitro activity of CIN-102 was characterised against Aspergillus spp., Fusarium spp. and Scedosporium spp. by studying the minimum inhibitory concentration (MIC), inoculum effect, germination inhibition, fungal growth, post-antifungal effect (PAFE) and synergy. RESULTS MICs determined for the three genera followed a unimodal distribution and their mean values ranged from 62-250 μg/mL. CIN-102 demonstrated an inoculum effect similar to voriconazole and amphotericin B, 100% inhibition of spore germination and a PAFE. CONCLUSION CIN-102 has significant activity against filamentous fungi involved in human pathologies and should be further explored as a potential new treatment. Other studies regarding its mechanisms of action as well as animal investigations are awaited.
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Affiliation(s)
| | - Nicolas Tesse
- Société Septeos, 12 avenue de la grande armée, 75017 Paris, France
| | - Rose Anne Lavergne
- Laboratoire de Parasitologie-Mycologie, Institut de Biologie, CHU de Nantes, France, and Département de Parasitologie et Mycologie Médicale, Université de Nantes, Nantes Atlantique Universités, EA1155-IICiMed, Faculté de Pharmacie, Nantes, France
| | - Patrice Le Pape
- Laboratoire de Parasitologie-Mycologie, Institut de Biologie, CHU de Nantes, France, and Département de Parasitologie et Mycologie Médicale, Université de Nantes, Nantes Atlantique Universités, EA1155-IICiMed, Faculté de Pharmacie, Nantes, France
| | - Jean Philippe Bouchara
- Host-Pathogen Interaction Study Group (GEIHP, EA 3142), SFR ICAT 4208, Univ. Angers, Univ. Brest, Angers University Hospital, Angers, France
| | | | - Marie Machouart
- Université de Lorraine, SIMPA, F-54000 Nancy, France; Université de Lorraine, CHRU-Nancy, Laboratoire de Microbiologie, F-54000 Nancy, France
| | - Anne Debourgogne
- Université de Lorraine, SIMPA, F-54000 Nancy, France; Université de Lorraine, CHRU-Nancy, Laboratoire de Microbiologie, F-54000 Nancy, France
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14
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Figueiredo L, Santos RB, Figueiredo A. Defense and Offense Strategies: The Role of Aspartic Proteases in Plant-Pathogen Interactions. BIOLOGY 2021; 10:75. [PMID: 33494266 PMCID: PMC7909840 DOI: 10.3390/biology10020075] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 01/08/2021] [Accepted: 01/19/2021] [Indexed: 12/23/2022]
Abstract
Plant aspartic proteases (APs; E.C.3.4.23) are a group of proteolytic enzymes widely distributed among different species characterized by the conserved sequence Asp-Gly-Thr at the active site. With a broad spectrum of biological roles, plant APs are suggested to undergo functional specialization and to be crucial in developmental processes, such as in both biotic and abiotic stress responses. Over the last decade, an increasing number of publications highlighted the APs' involvement in plant defense responses against a diversity of stresses. In contrast, few studies regarding pathogen-secreted APs and AP inhibitors have been published so far. In this review, we provide a comprehensive picture of aspartic proteases from plant and pathogenic origins, focusing on their relevance and participation in defense and offense strategies in plant-pathogen interactions.
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15
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Cultrera R, Torelli R, Sarnicola C, Segala D, Mengoli A, Chiaretto G, Perri P, Sanguinetti M. Identification and molecular characterization of Subramaniula asteroides causing human fungal keratitis: a case report. BMC Infect Dis 2021; 21:82. [PMID: 33461505 PMCID: PMC7814578 DOI: 10.1186/s12879-021-05768-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 01/05/2021] [Indexed: 11/17/2022] Open
Abstract
Background Keratitis due to by filamentous fungi are not easy to diagnose thus causing a delay in correct therapy. There are many descriptions of keratitis due to Candida, Fusarium and Aspergillus genera. Subramaniula genus has only recently been reported to cause human infections and there are few descriptions of eye infections due to this filamentous fungus. Diagnosis of fungal keratitis is usually based on microscopic and cultural techniques of samples obtained by corneal swabbing or scraping. Considering the amount of time required to obtain culture results it is wise to use other diagnostic methods, such as molecular analyses. Therapeutic options against these fungi are limited by low tissue penetration in the eye due to ocular barriers. We describe the first case of S. asteroides human keratitis treated with isavuconazole. Case presentation We describe a rare case of fungal keratitis unresponsive to antimicrobial treatment in a 65-year-old male patient without a history of diabetes or immunological diseases. He reported that the onset of symptoms occurred during a long holiday in Cape Verde Island. Initial treatment with topical antibiotics associated to steroids were ineffective, allowing a slow clinical progression of disease to corneal perforation. On admission in our Hospital, slit-lamp examination of the left eye showed conjunctival congestion and hyperemia, a large inferior corneal ulceration with brown pigment, corneal edema, about 3 mm of hypopyon and irido-lenticular synechiae. The slow clinical progression of the disease to corneal perforation and the aspect of the ulcer were consistent with a mycotic etiology. Molecular methods used on fungal colonies isolated by Sabouraud’s dextrose agar cultures allowed the identification of Subramaniula asteroids from corneal scraping. Antimicrobial test showed a good susceptibility of this filamentous fungus to voriconazole and isavuconazole. Moreover, this fungal keratitis was successfully treated with isavuconazole, without side effects, observing a progressive clinical improvement. Conclusions Molecular methods may be useful for the identification of filamentous fungal keratitis on scraping samples thus shortening the time of diagnosis. Systemic therapy by isavuconazole could be useful to treat the filamentous fungal keratitis, reducing the possible adverse effects due to the use of voriconazole by systemic administration.
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Affiliation(s)
- Rosario Cultrera
- Department of Morphology, Surgery and Experimental Medicine, Infectious Diseases Unit, University 'S. Anna' Hospital of Ferrara, Via Aldo Moro 8, 44124, Ferrara, Italy.
| | - Riccardo Torelli
- Dipartimento di Scienze di Laboratorio e Infettivologiche, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Largo Agostino Gemelli 8, 00168, Rome, Italy
| | - Caterina Sarnicola
- Department of Biomedical and Surgical Sciences, Ophthalmology Unit, 'S. Anna' University Hospital of Ferrara, Via Aldo Moro 8, 44124, Ferrara, Italy
| | - Daniela Segala
- Department of Morphology, Surgery and Experimental Medicine, Infectious Diseases Unit, University 'S. Anna' Hospital of Ferrara, Via Aldo Moro 8, 44124, Ferrara, Italy
| | - Andrea Mengoli
- Department of Biomedical and Surgical Sciences, Ophthalmology Unit, 'S. Anna' University Hospital of Ferrara, Via Aldo Moro 8, 44124, Ferrara, Italy
| | - Giuseppina Chiaretto
- Clinical Microbiology, 'S. Anna' University Hospital of Ferrara, Via Aldo Moro 8, 44124, Ferrara, Italy
| | - Paolo Perri
- Department of Biomedical and Surgical Sciences, Ophthalmology Unit, 'S. Anna' University Hospital of Ferrara, Via Aldo Moro 8, 44124, Ferrara, Italy
| | - Maurizio Sanguinetti
- Dipartimento di Scienze di Laboratorio e Infettivologiche, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Largo Agostino Gemelli 8, 00168, Rome, Italy.,Dipartimento di Scienze Biotecnologiche di base, Cliniche Intensivologiche e Perioperatorie, Università Cattolica del Sacro Cuore, Largo Agostino Gemelli 8, 00168, Rome, Italy
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16
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Madhu SN, Sharma S, Gajjar DU. Identification of Proteases: Carboxypeptidase and Aminopeptidase as Putative Virulence Factors of Fusarium solani Species Complex. Open Microbiol J 2020. [DOI: 10.2174/1874434602014010266] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Background:
Fusarium keratitis accounts for around 50% of mycotic keratitis cases. Major virulence factors produced by keratopathogenic fungi are proteases.
Objective:
The aim of the current study was to identify proteases contributing to corneal pathogenicity of Fusarium species.
Methods:
Culture filtrates from fourteen Fusarium solani species complex (FSSC) isolates and three F. delphinoides isolates were evaluated for protease activity and gelatine zymography. Mass spectroscopy was carried out using a partially purified enzyme and total extracellular extract. Protease gene expression in an in-vitro condition and an ex-vivo goat corneal infection model was measured using qRT-PCR. Specific activity was observed in a wide range and at a broad pH range; and isolates Cs1 (maximum) and Cc50 (minimum) were selected for the infection model.
Results:
Gene expression in in-vitro condition showed the highest fold change for proteases (C7YY94, C7Z7U2 and C7Z6W1) while in an ex-vivo infection highest fold change was seen for proteases (C7Z6W1, C7YQJ2 and C7Z7U2); in decreasing order, respectively. Expression of aminopeptidase (C7Z6W1) was 50-fold higher in the infected cornea in both isolates (Cs1 and Cc50); while expression of carboxypeptidase (C7YVF3) was 15-fold higher only in isolate Cs1. Corneal histology showed less penetration of Cc50 than Cs1 into the stroma. Mass spectrometry showed the presence of carboxypeptidase (C7YVF3) and tripeptidyl amino peptidase.
Conclusion:
It can be concluded that clinical isolates of FSSC produce varying amounts of proteases and differ in specific activity and gene expression in both conditions (in vitro and ex vivo). Carboxypeptidase and aminopeptidase contribute to the pathogenic potential of Fusarium solani species complex.
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17
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A One Health Perspective to Recognize Fusarium as Important in Clinical Practice. J Fungi (Basel) 2020; 6:jof6040235. [PMID: 33092120 PMCID: PMC7711799 DOI: 10.3390/jof6040235] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 10/05/2020] [Accepted: 10/08/2020] [Indexed: 02/07/2023] Open
Abstract
Any strategy that proposes solutions to health-related problems recognizes that people, animals, and the environment are interconnected. Fusarium is an example of this interaction because it is capable of infecting plants, animals, and humans. This review provides information on various aspects of these relations and proposes how to approach fusariosis with a One Health methodology (a multidisciplinary, and multisectoral approach that can address urgent, ongoing, or potential health threats to humans, animals, and the environment). Here, we give a framework to understand infection pathogenesis, through the epidemiological triad, and explain how the broad utilization of fungicides in agriculture may play a role in the treatment of human fusariosis. We assess how plumbing systems and hospital environments might play a role as a reservoir for animal and human infections. We explain the role of antifungal resistance mechanisms in both humans and agriculture. Our review emphasizes the importance of developing interdisciplinary research studies where aquatic animals, plants, and human disease interactions can be explored through coordination and collaborative actions.
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18
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Meza-Menchaca T, Singh RK, Quiroz-Chávez J, García-Pérez LM, Rodríguez-Mora N, Soto-Luna M, Gastélum-Contreras G, Vanzzini-Zago V, Sharma L, Quiroz-Figueroa FR. First Demonstration of Clinical Fusarium Strains Causing Cross-Kingdom Infections from Humans to Plants. Microorganisms 2020; 8:microorganisms8060947. [PMID: 32586066 PMCID: PMC7356758 DOI: 10.3390/microorganisms8060947] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 02/29/2020] [Accepted: 03/01/2020] [Indexed: 11/17/2022] Open
Abstract
Mycotoxins from the Fusarium genus are widely known to cause economic losses in crops, as well as high mortalities rates among immunocompromised humans. However, to date, no correlation has been established for the ability of Fusarium to cause cross-kingdom infection between plants and humans. The present investigation aims to fill this gap in the literature by examining cross-kingdom infection caused by Furasium strains isolated from non-immunocompromised or non-immunosuppressed humans, which were subsequently reinfected in plants and on human tissue. The findings document for the first time cross-kingdom infective events in Fusarium species, thus enhancing our existing knowledge of how mycopathogens continue to thrive in different hosts.
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Affiliation(s)
- Thuluz Meza-Menchaca
- Laboratorio de Genómica Humana, Facultad de Medicina, Universidad Veracruzana, Médicos y Odontólogos S/N, Col. Unidad del Bosque, C.P. 91010 Xalapa, Veracruz, Mexico;
| | - Rupesh Kumar Singh
- Centro de Química de Vila Real (CQ-VR), Universidade de Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal;
| | - Jesús Quiroz-Chávez
- Instituto Politécnico Nacional, Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional Unidad Sinaloa (CIIDIR-IPN Unidad Sinaloa), Laboratorio de Fitomejoramiento Molecular, Blvd. Juan de Dios Bátiz Paredes no. 250, Col. San Joachín, C.P. 81101 Guasave, Sinaloa, Mexico; (J.Q.-C.); (L.M.G.-P.); (N.R.-M.); (M.S.-L.); (G.G.-C.)
| | - Luz María García-Pérez
- Instituto Politécnico Nacional, Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional Unidad Sinaloa (CIIDIR-IPN Unidad Sinaloa), Laboratorio de Fitomejoramiento Molecular, Blvd. Juan de Dios Bátiz Paredes no. 250, Col. San Joachín, C.P. 81101 Guasave, Sinaloa, Mexico; (J.Q.-C.); (L.M.G.-P.); (N.R.-M.); (M.S.-L.); (G.G.-C.)
| | - Norma Rodríguez-Mora
- Instituto Politécnico Nacional, Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional Unidad Sinaloa (CIIDIR-IPN Unidad Sinaloa), Laboratorio de Fitomejoramiento Molecular, Blvd. Juan de Dios Bátiz Paredes no. 250, Col. San Joachín, C.P. 81101 Guasave, Sinaloa, Mexico; (J.Q.-C.); (L.M.G.-P.); (N.R.-M.); (M.S.-L.); (G.G.-C.)
| | - Manuel Soto-Luna
- Instituto Politécnico Nacional, Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional Unidad Sinaloa (CIIDIR-IPN Unidad Sinaloa), Laboratorio de Fitomejoramiento Molecular, Blvd. Juan de Dios Bátiz Paredes no. 250, Col. San Joachín, C.P. 81101 Guasave, Sinaloa, Mexico; (J.Q.-C.); (L.M.G.-P.); (N.R.-M.); (M.S.-L.); (G.G.-C.)
| | - Guadalupe Gastélum-Contreras
- Instituto Politécnico Nacional, Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional Unidad Sinaloa (CIIDIR-IPN Unidad Sinaloa), Laboratorio de Fitomejoramiento Molecular, Blvd. Juan de Dios Bátiz Paredes no. 250, Col. San Joachín, C.P. 81101 Guasave, Sinaloa, Mexico; (J.Q.-C.); (L.M.G.-P.); (N.R.-M.); (M.S.-L.); (G.G.-C.)
| | | | - Lav Sharma
- Syngenta Ghent Innovation Center, Devgen NV, Technologiepark 30, 9052 Gent-Zwijnaarde, Belgium;
| | - Francisco Roberto Quiroz-Figueroa
- Instituto Politécnico Nacional, Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional Unidad Sinaloa (CIIDIR-IPN Unidad Sinaloa), Laboratorio de Fitomejoramiento Molecular, Blvd. Juan de Dios Bátiz Paredes no. 250, Col. San Joachín, C.P. 81101 Guasave, Sinaloa, Mexico; (J.Q.-C.); (L.M.G.-P.); (N.R.-M.); (M.S.-L.); (G.G.-C.)
- Correspondence:
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19
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Goh F, Zhang MM, Lim TR, Low KN, Nge CE, Heng E, Yeo WL, Sirota FL, Crasta S, Tan Z, Ng V, Leong CY, Zhang H, Lezhava A, Chen SL, Hoon SS, Eisenhaber F, Eisenhaber B, Kanagasundaram Y, Wong FT, Ng SB. Identification and engineering of 32 membered antifungal macrolactone notonesomycins. Microb Cell Fact 2020; 19:71. [PMID: 32192516 PMCID: PMC7081687 DOI: 10.1186/s12934-020-01328-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 03/12/2020] [Indexed: 12/29/2022] Open
Abstract
Notonesomycin A is a 32-membered bioactive glycosylated macrolactone known to be produced by Streptomyces aminophilus subsp. notonesogenes 647-AV1 and S. aminophilus DSM 40186. In a high throughput antifungal screening campaign, we identified an alternative notonesomycin A producing strain, Streptomyces sp. A793, and its biosynthetic gene cluster. From this strain, we further characterized a new more potent antifungal non-sulfated analogue, named notonesomycin B. Through CRISPR–Cas9 engineering of the biosynthetic gene cluster, we were able to increase the production yield of notonesomycin B by up to 18-fold as well as generate a strain that exclusively produces this analogue.
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Affiliation(s)
- Falicia Goh
- Bioinformatics Institute, A*STAR, 30 Biopolis Street, #07-01 Matrix, Singapore, 138671, Singapore.,Biotransformation Innovation Platform, A*STAR, 61 Biopolis Drive, Proteos Level 4, Singapore, 138673, Singapore
| | - Mingzi M Zhang
- Metabolic Engineering, Functional Molecules & Polymers, Institute of Chemical and Engineering Sciences, A*STAR, 31 Biopolis Way, Nanos #01-01, Singapore, 138669, Singapore.,Institute of Molecular and Genomic Medicine, National Health Research Institutes, Miaoli County, Taiwan, R.O.C
| | - Tian Ru Lim
- Bioinformatics Institute, A*STAR, 30 Biopolis Street, #07-01 Matrix, Singapore, 138671, Singapore
| | - Kia Ngee Low
- Bioinformatics Institute, A*STAR, 30 Biopolis Street, #07-01 Matrix, Singapore, 138671, Singapore
| | - Choy Eng Nge
- Bioinformatics Institute, A*STAR, 30 Biopolis Street, #07-01 Matrix, Singapore, 138671, Singapore
| | - Elena Heng
- Molecular Engineering Laboratory, Institute of Bioengineering and Nanotechnology, A*STAR, 31 Biopolis Way, Nanos, Singapore, 138669, Singapore
| | - Wan Lin Yeo
- Metabolic Engineering, Functional Molecules & Polymers, Institute of Chemical and Engineering Sciences, A*STAR, 31 Biopolis Way, Nanos #01-01, Singapore, 138669, Singapore
| | - Fernanda L Sirota
- Bioinformatics Institute, A*STAR, 30 Biopolis Street, #07-01 Matrix, Singapore, 138671, Singapore
| | - Sharon Crasta
- Bioinformatics Institute, A*STAR, 30 Biopolis Street, #07-01 Matrix, Singapore, 138671, Singapore
| | - Zann Tan
- Bioinformatics Institute, A*STAR, 30 Biopolis Street, #07-01 Matrix, Singapore, 138671, Singapore
| | - Veronica Ng
- Bioinformatics Institute, A*STAR, 30 Biopolis Street, #07-01 Matrix, Singapore, 138671, Singapore
| | - Chung Yan Leong
- Bioinformatics Institute, A*STAR, 30 Biopolis Street, #07-01 Matrix, Singapore, 138671, Singapore
| | - Huibin Zhang
- Genome Institute of Singapore, A*STAR, 60 Biopolis Street, Genome #02-01, Singapore, 138672, Singapore
| | - Alexander Lezhava
- Genome Institute of Singapore, A*STAR, 60 Biopolis Street, Genome #02-01, Singapore, 138672, Singapore
| | - Swaine L Chen
- Genome Institute of Singapore, A*STAR, 60 Biopolis Street, Genome #02-01, Singapore, 138672, Singapore.,Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, 1E Kent Ridge Road, NUHS Tower Block, Level 10, Singapore, 119228, Singapore
| | - Shawn S Hoon
- Molecular Engineering Laboratory, Institute of Bioengineering and Nanotechnology, A*STAR, 31 Biopolis Way, Nanos, Singapore, 138669, Singapore
| | - Frank Eisenhaber
- Bioinformatics Institute, A*STAR, 30 Biopolis Street, #07-01 Matrix, Singapore, 138671, Singapore.,School of Computer Science and Engineering, Nanyang Technological University (NTU), 50 Nanyang Drive, Singapore, 637553, Singapore
| | - Birgit Eisenhaber
- Bioinformatics Institute, A*STAR, 30 Biopolis Street, #07-01 Matrix, Singapore, 138671, Singapore
| | | | - Fong T Wong
- Molecular Engineering Laboratory, Institute of Bioengineering and Nanotechnology, A*STAR, 31 Biopolis Way, Nanos, Singapore, 138669, Singapore.
| | - Siew Bee Ng
- Bioinformatics Institute, A*STAR, 30 Biopolis Street, #07-01 Matrix, Singapore, 138671, Singapore.
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20
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Zhou Y, Zhou XE, Gong Y, Zhu Y, Cao X, Brunzelle JS, Xu HE, Zhou M, Melcher K, Zhang F. Structural basis of Fusarium myosin I inhibition by phenamacril. PLoS Pathog 2020; 16:e1008323. [PMID: 32163521 PMCID: PMC7100991 DOI: 10.1371/journal.ppat.1008323] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 03/27/2020] [Accepted: 01/16/2020] [Indexed: 11/26/2022] Open
Abstract
Fusarium is a genus of filamentous fungi that includes species that cause devastating diseases in major staple crops, such as wheat, maize, rice, and barley, resulting in severe yield losses and mycotoxin contamination of infected grains. Phenamacril is a novel fungicide that is considered environmentally benign due to its exceptional specificity; it inhibits the ATPase activity of the sole class I myosin of only a subset of Fusarium species including the major plant pathogens F. graminearum, F. asiaticum and F. fujikuroi. To understand the underlying mechanisms of inhibition, species specificity, and resistance mutations, we have determined the crystal structure of phenamacril-bound F. graminearum myosin I. Phenamacril binds in the actin-binding cleft in a new allosteric pocket that contains the central residue of the regulatory Switch 2 loop and that is collapsed in the structure of a myosin with closed actin-binding cleft, suggesting that pocket occupancy blocks cleft closure. We have further identified a single, transferable phenamacril-binding residue found exclusively in phenamacril-sensitive myosins to confer phenamacril selectivity. Phenamacril is a recently identified myosin I inhibitor that is a potent and highly species-specific and myosin subtype-selective fungicide. We report the high-resolution structure of the phenamacril-bound myosin I motor domain of the major crop pathogen Fusarium graminearum, providing insight into the molecular mechanism of phenamacril action and resistance. These results are of broad significance for understanding the mode of actions of myosin-based fungicides and for designing novel myosin I inhibitors for crop protection and for treatment of human myosin dysfunction diseases.
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Affiliation(s)
- Yuxin Zhou
- Key Laboratory of Pesticide, College of Plant Protection, Nanjing Agricultural University, Nanjing, China
- Center of Cancer and Cell Biology, Program for Structural Biology, Van Andel Institute, Grand Rapids, Michigan, United States of America
| | - X. Edward Zhou
- Center of Cancer and Cell Biology, Program for Structural Biology, Van Andel Institute, Grand Rapids, Michigan, United States of America
| | - Yuanping Gong
- Key Laboratory of Pesticide, College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Yuanye Zhu
- Key Laboratory of Pesticide, College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Xiaoman Cao
- Key Laboratory of Pesticide, College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Joseph S. Brunzelle
- Northwestern University Synchrotron Research Center, Life Sciences Collaborative Access Team, Northwestern University, Argonne, Illinois, United States of America
| | - H. Eric Xu
- Center of Cancer and Cell Biology, Program for Structural Biology, Van Andel Institute, Grand Rapids, Michigan, United States of America
- Center for Structure and Function of Drug Targets, The CAS-Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Mingguo Zhou
- Key Laboratory of Pesticide, College of Plant Protection, Nanjing Agricultural University, Nanjing, China
- * E-mail: (MZ); (KM); (FZ)
| | - Karsten Melcher
- Center of Cancer and Cell Biology, Program for Structural Biology, Van Andel Institute, Grand Rapids, Michigan, United States of America
- * E-mail: (MZ); (KM); (FZ)
| | - Feng Zhang
- Key Laboratory of Pesticide, College of Plant Protection, Nanjing Agricultural University, Nanjing, China
- * E-mail: (MZ); (KM); (FZ)
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First Comprehensive Report of Clinical Fusarium Strains Isolated in the State of Sao Paulo (Brazil) and Identified by MALDI-TOF MS and Molecular Biology. Microorganisms 2019; 8:microorganisms8010066. [PMID: 31906188 PMCID: PMC7022604 DOI: 10.3390/microorganisms8010066] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 12/22/2019] [Accepted: 12/28/2019] [Indexed: 01/04/2023] Open
Abstract
The aim of this study was to compare the performance of matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS), phenotypic and molecular methods for the identification of Fusarium species complexes isolated from clinical cases in the State of Sao Paulo (Brazil) between the years 2001 and 2017. Sequencing of ITS region of ribosomal DNA and elongation factor 1 alpha gene (ET1α) were used as reference method in the analysis of a total of 108 Fusarium spp. clinical strains isolated from human hosts with superficial and systemic infections. Agreement between MALDI-TOF-MS and molecular data was observed for 97 out of 108 clinical isolates (89.8%), whereas five (4.6%) and six (5.5%) clinical isolates were misidentified and were not identified by MALDI-TOF MS, respectively. ITS region sequences and MALDI-TOF MS mass spectra identified and grouped correctly most of Fusarium clinical isolates at species complex level. This investigation highlights the potential of MALDI-TOF MS technique as a fast and cost-efficient alternative for clinical Fusarium identification. However, MALDI-TOF MS requires a more accurate and larger database. This work is the first comprehensive report for Fusarium population, based on phenotypic analyses, proteomic profile by MALDI-TOF and phylogenetic analyses of Fusarium species complexes isolated from clinical cases in the State of Sao Paulo, Brazil.
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22
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Prajapati S, Sharma M, Kumar A, Gupta P, Dwivedi B, Arya B, Arya R, Nayak D. Antimicrobial activity of different homoeopathic drugs and their potencies against 'Aspergillus niger' In vitro. INDIAN JOURNAL OF RESEARCH IN HOMOEOPATHY 2019. [DOI: 10.4103/ijrh.ijrh_46_18] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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