Higher fitness and competitive advantage of Pyricularia oryzae Triticum lineage resistant to QoI fungicides
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1002/ps.7144 http://hdl.handle.net/11449/237967 |
Resumo: | Background Quinone outside inhibitor (QoI) fungicides have not been effective in controlling the wheat blast disease [Pyricularia oryzae Triticum lineage (PoTl)] in Brazil. The first report of resistance of PoTl to QoIs in this country occurred in 2015. This study aimed to test hypotheses about the changes in fitness parameters and competitive advantage of the QoI-resistant (R) PoTl isolate group compared to the sensitive (S) isolate group. Mycelial growth on PDA medium and in vivo conidial production, incubation period and disease severity were analyzed as fitness parameters. The competitive ability was measured on wheat leaves and heads inoculated with mixtures of R:S isolates at the following proportions: 0S:100R, 20S:80R, 50S:50R, 80S:20R, 100S:0R, and 0S:0R. Results The QoI-R isolate group had significantly higher fitness than the sensitive isolate group, considering both in vitro and in vivo parameters. The highest in vivo conidial production on wheat leaves and the highest leaf and head disease severity were detected when resistant strains were predominant in the isolate's mixtures (20S:80R or 0S:100R proportions), in the absence of fungicide pressure. Conidia harvested from wheat blast lesions on leaves inoculated with 20S:80R and 0S:100R mixtures were resistant to QoIs in vitro assays based on discriminatory doses of the fungicide. Conclusion Therefore, QoI resistance facilitated a higher fitness and a competitive advantage in PoTl, which contrasts with the evolutionary theory that associates a fitness cost to fungicide resistance. We discuss the evolutionary and ecological implications of the higher fitness as found in the fungicide-resistant adapted populations of the wheat blast pathogen. (c) 2022 Society of Chemical Industry. |
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Higher fitness and competitive advantage of Pyricularia oryzae Triticum lineage resistant to QoI fungicidesWheat blastQuinone outside inhibitorAzoxystrobinFungicide resistanceBackground Quinone outside inhibitor (QoI) fungicides have not been effective in controlling the wheat blast disease [Pyricularia oryzae Triticum lineage (PoTl)] in Brazil. The first report of resistance of PoTl to QoIs in this country occurred in 2015. This study aimed to test hypotheses about the changes in fitness parameters and competitive advantage of the QoI-resistant (R) PoTl isolate group compared to the sensitive (S) isolate group. Mycelial growth on PDA medium and in vivo conidial production, incubation period and disease severity were analyzed as fitness parameters. The competitive ability was measured on wheat leaves and heads inoculated with mixtures of R:S isolates at the following proportions: 0S:100R, 20S:80R, 50S:50R, 80S:20R, 100S:0R, and 0S:0R. Results The QoI-R isolate group had significantly higher fitness than the sensitive isolate group, considering both in vitro and in vivo parameters. The highest in vivo conidial production on wheat leaves and the highest leaf and head disease severity were detected when resistant strains were predominant in the isolate's mixtures (20S:80R or 0S:100R proportions), in the absence of fungicide pressure. Conidia harvested from wheat blast lesions on leaves inoculated with 20S:80R and 0S:100R mixtures were resistant to QoIs in vitro assays based on discriminatory doses of the fungicide. Conclusion Therefore, QoI resistance facilitated a higher fitness and a competitive advantage in PoTl, which contrasts with the evolutionary theory that associates a fitness cost to fungicide resistance. We discuss the evolutionary and ecological implications of the higher fitness as found in the fungicide-resistant adapted populations of the wheat blast pathogen. (c) 2022 Society of Chemical Industry.Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG)National Council for Scientific and Technological DevelopmentConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Univ Fed Lavras, Dept Plant Pathol, Lavras, BrazilAgr Engn & Soils Sao Paulo State Univ, Dept Crop Protect, Sao Paulo, BrazilState Univ Tocantina Reg Maranhao, Ctr Agr Sci Campus Imperatriz, Sao Luis, Maranhao, BrazilAgr Engn & Soils Sao Paulo State Univ, Dept Crop Protect, Sao Paulo, BrazilFAPEMIG: CAG-APQ01975-15National Council for Scientific and Technological Development: CNPq 305482/2017-3National Council for Scientific and Technological Development: 432306133/2021-0National Council for Scientific and Technological Development: 313825/2018-1FAPESP: Fapesp2018/21197-0FAPESP: Fapesp 2019/12509-1Wiley-BlackwellUniversidade Federal de Lavras (UFLA)Universidade Estadual Paulista (UNESP)State Univ Tocantina Reg MaranhaoDorigan, Adriano FrancisMoreira, Silvino IntraCeresini, Paulo Cezar [UNESP]Pozza, Edson AmpelioBelan, Leonidas LeoniSilveira, Patricia Ricardino daAlves, Eduardo2022-11-30T16:20:56Z2022-11-30T16:20:56Z2022-09-12info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article8http://dx.doi.org/10.1002/ps.7144Pest Management Science. Chichester: John Wiley & Sons Ltd, 8 p., 2022.1526-498Xhttp://hdl.handle.net/11449/23796710.1002/ps.7144WOS:000852745500001Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPest Management Scienceinfo:eu-repo/semantics/openAccess2024-07-05T18:12:55Zoai:repositorio.unesp.br:11449/237967Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:18:36.695257Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Higher fitness and competitive advantage of Pyricularia oryzae Triticum lineage resistant to QoI fungicides |
title |
Higher fitness and competitive advantage of Pyricularia oryzae Triticum lineage resistant to QoI fungicides |
spellingShingle |
Higher fitness and competitive advantage of Pyricularia oryzae Triticum lineage resistant to QoI fungicides Dorigan, Adriano Francis Wheat blast Quinone outside inhibitor Azoxystrobin Fungicide resistance |
title_short |
Higher fitness and competitive advantage of Pyricularia oryzae Triticum lineage resistant to QoI fungicides |
title_full |
Higher fitness and competitive advantage of Pyricularia oryzae Triticum lineage resistant to QoI fungicides |
title_fullStr |
Higher fitness and competitive advantage of Pyricularia oryzae Triticum lineage resistant to QoI fungicides |
title_full_unstemmed |
Higher fitness and competitive advantage of Pyricularia oryzae Triticum lineage resistant to QoI fungicides |
title_sort |
Higher fitness and competitive advantage of Pyricularia oryzae Triticum lineage resistant to QoI fungicides |
author |
Dorigan, Adriano Francis |
author_facet |
Dorigan, Adriano Francis Moreira, Silvino Intra Ceresini, Paulo Cezar [UNESP] Pozza, Edson Ampelio Belan, Leonidas Leoni Silveira, Patricia Ricardino da Alves, Eduardo |
author_role |
author |
author2 |
Moreira, Silvino Intra Ceresini, Paulo Cezar [UNESP] Pozza, Edson Ampelio Belan, Leonidas Leoni Silveira, Patricia Ricardino da Alves, Eduardo |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal de Lavras (UFLA) Universidade Estadual Paulista (UNESP) State Univ Tocantina Reg Maranhao |
dc.contributor.author.fl_str_mv |
Dorigan, Adriano Francis Moreira, Silvino Intra Ceresini, Paulo Cezar [UNESP] Pozza, Edson Ampelio Belan, Leonidas Leoni Silveira, Patricia Ricardino da Alves, Eduardo |
dc.subject.por.fl_str_mv |
Wheat blast Quinone outside inhibitor Azoxystrobin Fungicide resistance |
topic |
Wheat blast Quinone outside inhibitor Azoxystrobin Fungicide resistance |
description |
Background Quinone outside inhibitor (QoI) fungicides have not been effective in controlling the wheat blast disease [Pyricularia oryzae Triticum lineage (PoTl)] in Brazil. The first report of resistance of PoTl to QoIs in this country occurred in 2015. This study aimed to test hypotheses about the changes in fitness parameters and competitive advantage of the QoI-resistant (R) PoTl isolate group compared to the sensitive (S) isolate group. Mycelial growth on PDA medium and in vivo conidial production, incubation period and disease severity were analyzed as fitness parameters. The competitive ability was measured on wheat leaves and heads inoculated with mixtures of R:S isolates at the following proportions: 0S:100R, 20S:80R, 50S:50R, 80S:20R, 100S:0R, and 0S:0R. Results The QoI-R isolate group had significantly higher fitness than the sensitive isolate group, considering both in vitro and in vivo parameters. The highest in vivo conidial production on wheat leaves and the highest leaf and head disease severity were detected when resistant strains were predominant in the isolate's mixtures (20S:80R or 0S:100R proportions), in the absence of fungicide pressure. Conidia harvested from wheat blast lesions on leaves inoculated with 20S:80R and 0S:100R mixtures were resistant to QoIs in vitro assays based on discriminatory doses of the fungicide. Conclusion Therefore, QoI resistance facilitated a higher fitness and a competitive advantage in PoTl, which contrasts with the evolutionary theory that associates a fitness cost to fungicide resistance. We discuss the evolutionary and ecological implications of the higher fitness as found in the fungicide-resistant adapted populations of the wheat blast pathogen. (c) 2022 Society of Chemical Industry. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-11-30T16:20:56Z 2022-11-30T16:20:56Z 2022-09-12 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1002/ps.7144 Pest Management Science. Chichester: John Wiley & Sons Ltd, 8 p., 2022. 1526-498X http://hdl.handle.net/11449/237967 10.1002/ps.7144 WOS:000852745500001 |
url |
http://dx.doi.org/10.1002/ps.7144 http://hdl.handle.net/11449/237967 |
identifier_str_mv |
Pest Management Science. Chichester: John Wiley & Sons Ltd, 8 p., 2022. 1526-498X 10.1002/ps.7144 WOS:000852745500001 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Pest Management Science |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
8 |
dc.publisher.none.fl_str_mv |
Wiley-Blackwell |
publisher.none.fl_str_mv |
Wiley-Blackwell |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128632366825472 |