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Registro Completo |
Biblioteca(s): |
Embrapa Meio Ambiente. |
Data corrente: |
22/12/2014 |
Data da última atualização: |
22/12/2014 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
GALVAO, J. A. H.; BETTIOL, W. |
Afiliação: |
JOSE ABRAHAO HADDAD GALVAO, CNPMA; WAGNER BETTIOL, CNPMA. |
Título: |
Effects of UV-B radiation on Lecanicillium spp., biological control agents of the coffee leaf rust pathogen. |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
Tropical Plant Pathology, Brasília, DF, v. 39, n. 5, p. 392-400, 2014. |
Idioma: |
Inglês |
Conteúdo: |
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. |
Palavras-Chave: |
Coffee; UV-B. |
Thesagro: |
Café; Controle biológico; Ferrugem; Hemileia vastatrix. |
Thesaurus Nal: |
Biological control; Biopesticides; Climate change; Leaf rust; Lecanicillium; Ultraviolet radiation. |
Categoria do assunto: |
H Saúde e Patologia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/114188/1/2014AP029.pdf
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Marc: |
LEADER 01755naa a2200277 a 4500 001 2003378 005 2014-12-22 008 2014 bl uuuu u00u1 u #d 100 1 $aGALVAO, J. A. H. 245 $aEffects of UV-B radiation on Lecanicillium spp., biological control agents of the coffee leaf rust pathogen.$h[electronic resource] 260 $c2014 520 $aCoffee 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. 650 $aBiological control 650 $aBiopesticides 650 $aClimate change 650 $aLeaf rust 650 $aLecanicillium 650 $aUltraviolet radiation 650 $aCafé 650 $aControle biológico 650 $aFerrugem 650 $aHemileia vastatrix 653 $aCoffee 653 $aUV-B 700 1 $aBETTIOL, W. 773 $tTropical Plant Pathology, Brasília, DF$gv. 39, n. 5, p. 392-400, 2014.
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