Effects of UV-B radiation on Lecanicillium spp., biological control agents of the coffee leaf rust pathogen
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S1982-56762014000500006 http://hdl.handle.net/11449/114608 |
Resumo: | Coffee leaf rust is the main disease of coffee and its causal agent is naturally hyperparasited by Lecanicillium lecanii, indicating its potential for biocontrol. Ultraviolet-B (UV-B) radiation is an important factor that interferes on application of biocontrol agents, and Lecanicillium can be affected by UV-B. The objective of this work was to evaluate the effects of UV-B on Lecanicillium isolates and on its capacity to colonize rust lesions. There were variations among Lecanicillium strains in sensitivity to UV-B radiation, causing inactivation and delayed spore germination. The most tolerant strain (CCMA-1143) had LD50=1.63 kJ/m² of UV-B. The incidence and colonization of Lecanicillium on coffee leaf rust lesions were influenced by the dose of UV-B radiation, and were increased when the isolate CCMA-1143 was sprayed on rust lesions. The effects of UV-B should be considered on efficacy studies for the development of biopesticides. |
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Effects of UV-B radiation on Lecanicillium spp., biological control agents of the coffee leaf rust pathogenClimate changeUV-BHemileia vastatrixbiopesticideCoffee leaf rust is the main disease of coffee and its causal agent is naturally hyperparasited by Lecanicillium lecanii, indicating its potential for biocontrol. Ultraviolet-B (UV-B) radiation is an important factor that interferes on application of biocontrol agents, and Lecanicillium can be affected by UV-B. The objective of this work was to evaluate the effects of UV-B on Lecanicillium isolates and on its capacity to colonize rust lesions. There were variations among Lecanicillium strains in sensitivity to UV-B radiation, causing inactivation and delayed spore germination. The most tolerant strain (CCMA-1143) had LD50=1.63 kJ/m² of UV-B. The incidence and colonization of Lecanicillium on coffee leaf rust lesions were influenced by the dose of UV-B radiation, and were increased when the isolate CCMA-1143 was sprayed on rust lesions. The effects of UV-B should be considered on efficacy studies for the development of biopesticides.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)UNESP FCA Departamento de Proteção VegetalEmbrapa Meio-AmbienteUNESP FCA Departamento de Proteção VegetalSociedade Brasileira de FitopatologiaUniversidade Estadual Paulista (Unesp)Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)Galvão, José A. H. [UNESP]Bettiol, Wagner [UNESP]2015-02-02T12:39:41Z2015-02-02T12:39:41Z2014-10-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article392-400application/pdfhttp://dx.doi.org/10.1590/S1982-56762014000500006Tropical Plant Pathology. Sociedade Brasileira de Fitopatologia, v. 39, n. 5, p. 392-400, 2014.1982-5676http://hdl.handle.net/11449/11460810.1590/S1982-56762014000500006S1982-56762014000500006S1982-56762014000500006.pdfSciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengTropical Plant Pathology0,401info:eu-repo/semantics/openAccess2024-04-30T18:07:33Zoai:repositorio.unesp.br:11449/114608Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:49:00.494194Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Effects of UV-B radiation on Lecanicillium spp., biological control agents of the coffee leaf rust pathogen |
title |
Effects of UV-B radiation on Lecanicillium spp., biological control agents of the coffee leaf rust pathogen |
spellingShingle |
Effects of UV-B radiation on Lecanicillium spp., biological control agents of the coffee leaf rust pathogen Galvão, José A. H. [UNESP] Climate change UV-B Hemileia vastatrix biopesticide |
title_short |
Effects of UV-B radiation on Lecanicillium spp., biological control agents of the coffee leaf rust pathogen |
title_full |
Effects of UV-B radiation on Lecanicillium spp., biological control agents of the coffee leaf rust pathogen |
title_fullStr |
Effects of UV-B radiation on Lecanicillium spp., biological control agents of the coffee leaf rust pathogen |
title_full_unstemmed |
Effects of UV-B radiation on Lecanicillium spp., biological control agents of the coffee leaf rust pathogen |
title_sort |
Effects of UV-B radiation on Lecanicillium spp., biological control agents of the coffee leaf rust pathogen |
author |
Galvão, José A. H. [UNESP] |
author_facet |
Galvão, José A. H. [UNESP] Bettiol, Wagner [UNESP] |
author_role |
author |
author2 |
Bettiol, Wagner [UNESP] |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) |
dc.contributor.author.fl_str_mv |
Galvão, José A. H. [UNESP] Bettiol, Wagner [UNESP] |
dc.subject.por.fl_str_mv |
Climate change UV-B Hemileia vastatrix biopesticide |
topic |
Climate change UV-B Hemileia vastatrix biopesticide |
description |
Coffee leaf rust is the main disease of coffee and its causal agent is naturally hyperparasited by Lecanicillium lecanii, indicating its potential for biocontrol. Ultraviolet-B (UV-B) radiation is an important factor that interferes on application of biocontrol agents, and Lecanicillium can be affected by UV-B. The objective of this work was to evaluate the effects of UV-B on Lecanicillium isolates and on its capacity to colonize rust lesions. There were variations among Lecanicillium strains in sensitivity to UV-B radiation, causing inactivation and delayed spore germination. The most tolerant strain (CCMA-1143) had LD50=1.63 kJ/m² of UV-B. The incidence and colonization of Lecanicillium on coffee leaf rust lesions were influenced by the dose of UV-B radiation, and were increased when the isolate CCMA-1143 was sprayed on rust lesions. The effects of UV-B should be considered on efficacy studies for the development of biopesticides. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-10-01 2015-02-02T12:39:41Z 2015-02-02T12:39:41Z |
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/10.1590/S1982-56762014000500006 Tropical Plant Pathology. Sociedade Brasileira de Fitopatologia, v. 39, n. 5, p. 392-400, 2014. 1982-5676 http://hdl.handle.net/11449/114608 10.1590/S1982-56762014000500006 S1982-56762014000500006 S1982-56762014000500006.pdf |
url |
http://dx.doi.org/10.1590/S1982-56762014000500006 http://hdl.handle.net/11449/114608 |
identifier_str_mv |
Tropical Plant Pathology. Sociedade Brasileira de Fitopatologia, v. 39, n. 5, p. 392-400, 2014. 1982-5676 10.1590/S1982-56762014000500006 S1982-56762014000500006 S1982-56762014000500006.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Tropical Plant Pathology 0,401 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
392-400 application/pdf |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Fitopatologia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Fitopatologia |
dc.source.none.fl_str_mv |
SciELO 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_ |
1808129251973529600 |