Characterization of Five New <i>Monosporascus</i> Species: Adaptation to Environmental Factors, Pathogenicity to Cucurbits and Sensitivity to Fungicides
In this study, five new recently described <i>Monosporascus</i> species, <i>M</i>. <i>brasiliensis</i>, <i>M</i>. <i>caatinguensis</i>, <i>M</i>. <i>mossoroensis</i>, <i>M</i>. <i>nordestinus</i&...
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MDPI AG
2020-09-01
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author | Allinny Luzia Alves Cavalcante Andréia Mitsa Paiva Negreiros Moisés Bento Tavares Érica dos Santos Barreto Josep Armengol Rui Sales Júnior |
author_facet | Allinny Luzia Alves Cavalcante Andréia Mitsa Paiva Negreiros Moisés Bento Tavares Érica dos Santos Barreto Josep Armengol Rui Sales Júnior |
author_sort | Allinny Luzia Alves Cavalcante |
collection | DOAJ |
description | In this study, five new recently described <i>Monosporascus</i> species, <i>M</i>. <i>brasiliensis</i>, <i>M</i>. <i>caatinguensis</i>, <i>M</i>. <i>mossoroensis</i>, <i>M</i>. <i>nordestinus</i>, and <i>M</i>. <i>semiaridus,</i> which were found on weeds collected from cucurbit cultivation fields in northeastern Brazil, are characterized regarding mycelial growth at different pH levels and salinity (NaCl) concentrations, their pathogenicity to selected cucurbit species, and their sensitivity to fungicides with different modes of action. Our results reveal great variability among the representative isolates of each <i>Monosporascus</i> spp. All of them showed a wide range of tolerance to different pH levels, and NaCl significantly reduced their in vitro mycelial growth, although no concentration was able to inhibit them completely. In pathogenicity tests, all seedlings of cucurbits evaluated, melon, watermelon, cucumber, and pumpkin, were susceptible to the five <i>Monosporascus</i> spp. in greenhouse experiments using artificial inoculation of roots. Moreover, all <i>Monosporascus</i> spp. were highly susceptible to the fungicides fludioxonil and fluazinam. Our findings provide relevant information about the response of these new <i>Monosporascus</i> spp. to environmental factors, plant genotypes and fungicides. |
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issn | 2309-608X |
language | English |
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series | Journal of Fungi |
spelling | doaj.art-551b06eecd5147b6b1b5002942e6f7302023-11-20T13:09:54ZengMDPI AGJournal of Fungi2309-608X2020-09-016316910.3390/jof6030169Characterization of Five New <i>Monosporascus</i> Species: Adaptation to Environmental Factors, Pathogenicity to Cucurbits and Sensitivity to FungicidesAllinny Luzia Alves Cavalcante0Andréia Mitsa Paiva Negreiros1Moisés Bento Tavares2Érica dos Santos Barreto3Josep Armengol4Rui Sales Júnior5Departamento de Ciências Agronômicas e Florestais, Universidade Federal Rural do Semi-Árido, Mossoró RN 59625-900, BrazilDepartamento de Ciências Agronômicas e Florestais, Universidade Federal Rural do Semi-Árido, Mossoró RN 59625-900, BrazilDepartamento de Ciências Agronômicas e Florestais, Universidade Federal Rural do Semi-Árido, Mossoró RN 59625-900, BrazilDepartamento de Ciências Agronômicas e Florestais, Universidade Federal Rural do Semi-Árido, Mossoró RN 59625-900, BrazilInstituto Agroforestal Mediterráneo, Universitat Politècnica de València, Camino de Vera S/N, 46022 Valencia, SpainDepartamento de Ciências Agronômicas e Florestais, Universidade Federal Rural do Semi-Árido, Mossoró RN 59625-900, BrazilIn this study, five new recently described <i>Monosporascus</i> species, <i>M</i>. <i>brasiliensis</i>, <i>M</i>. <i>caatinguensis</i>, <i>M</i>. <i>mossoroensis</i>, <i>M</i>. <i>nordestinus</i>, and <i>M</i>. <i>semiaridus,</i> which were found on weeds collected from cucurbit cultivation fields in northeastern Brazil, are characterized regarding mycelial growth at different pH levels and salinity (NaCl) concentrations, their pathogenicity to selected cucurbit species, and their sensitivity to fungicides with different modes of action. Our results reveal great variability among the representative isolates of each <i>Monosporascus</i> spp. All of them showed a wide range of tolerance to different pH levels, and NaCl significantly reduced their in vitro mycelial growth, although no concentration was able to inhibit them completely. In pathogenicity tests, all seedlings of cucurbits evaluated, melon, watermelon, cucumber, and pumpkin, were susceptible to the five <i>Monosporascus</i> spp. in greenhouse experiments using artificial inoculation of roots. Moreover, all <i>Monosporascus</i> spp. were highly susceptible to the fungicides fludioxonil and fluazinam. Our findings provide relevant information about the response of these new <i>Monosporascus</i> spp. to environmental factors, plant genotypes and fungicides.https://www.mdpi.com/2309-608X/6/3/169fungicidesmycelial growthpathogenicitypHsalinitysoilborne fungi |
spellingShingle | Allinny Luzia Alves Cavalcante Andréia Mitsa Paiva Negreiros Moisés Bento Tavares Érica dos Santos Barreto Josep Armengol Rui Sales Júnior Characterization of Five New <i>Monosporascus</i> Species: Adaptation to Environmental Factors, Pathogenicity to Cucurbits and Sensitivity to Fungicides Journal of Fungi fungicides mycelial growth pathogenicity pH salinity soilborne fungi |
title | Characterization of Five New <i>Monosporascus</i> Species: Adaptation to Environmental Factors, Pathogenicity to Cucurbits and Sensitivity to Fungicides |
title_full | Characterization of Five New <i>Monosporascus</i> Species: Adaptation to Environmental Factors, Pathogenicity to Cucurbits and Sensitivity to Fungicides |
title_fullStr | Characterization of Five New <i>Monosporascus</i> Species: Adaptation to Environmental Factors, Pathogenicity to Cucurbits and Sensitivity to Fungicides |
title_full_unstemmed | Characterization of Five New <i>Monosporascus</i> Species: Adaptation to Environmental Factors, Pathogenicity to Cucurbits and Sensitivity to Fungicides |
title_short | Characterization of Five New <i>Monosporascus</i> Species: Adaptation to Environmental Factors, Pathogenicity to Cucurbits and Sensitivity to Fungicides |
title_sort | characterization of five new i monosporascus i species adaptation to environmental factors pathogenicity to cucurbits and sensitivity to fungicides |
topic | fungicides mycelial growth pathogenicity pH salinity soilborne fungi |
url | https://www.mdpi.com/2309-608X/6/3/169 |
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