Registro Completo |
Biblioteca(s): |
Embrapa Meio Ambiente. |
Data corrente: |
19/01/2017 |
Data da última atualização: |
19/01/2017 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
COSTA, L. B.; MORANDI, M. A. B.; STRICKER, S. M.; BETTIOL, W. |
Afiliação: |
LUCIO BERTOLDO COSTA, FCA-UNESP; MARCELO AUGUSTO BOECHAT MORANDI, CNPMA; SARA MARIE STRICKER, University of Guelph; WAGNER BETTIOL, CNPMA. |
Título: |
UV-B radiation reduces biocontrol ability of Clonostachys rosea against Botrytis cinerea. |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
Biocontrol Science and Technology, v. 26, n. 12, p. 1736-1749, 2016. |
DOI: |
http://dx.doi.org/10.1080/09583157.2016.1241981 |
Idioma: |
Inglês |
Conteúdo: |
Abstract: There is a lack of information comparing UV-B radiation conidial sensitivity of the biocontrol agent Clonostachys rosea (Cr) and its target pathogen, Botrytis cinerea (Bc). We investigated the interactions in vitro and on strawberry leaf discs between previously selected Cr and Bc strains tolerant to UV-B radiation. Strawberry leaf discs inoculated with Bc, Cr, or combinations of both fungi were exposed to UV-B doses (2.9, 5.9, and 8.9?kJ?m?2). Incidence and sporulation of both fungi were evaluated, and the Area Under Incidence Progress Curve (AUIPC) and Area Under Sporulation Progress Curve (AUSPC) were calculated. AUIPC and AUSPC of Cr on leaf discs were negatively correlated to increased UV-B. When inoculated alone on leaf discs, Bc was not affected by UV-B, but when inoculated with Cr the incidence and sporulation of Bc were positively correlated to UV-B radiation dose. In the absence of UV-B, Cr reduced incidence and sporulation of Bc. However, the ability of Cr to control Bc was reduced by 20% to 50% with increasing UV-B radiation. Increasing the applied concentration of Cr conidia 10-fold partially overcame the deleterious effects of UV-B on the ability of the biocontrol agent to reduce Bc sporulation in strawberry leaves. The selection of antagonists must fulfil many requirements; besides being active against the specific targeted plant pathogens, they must be cost-effective and have ecological characteristics suitable for the desired use conditions. We suggest that UV-B exposure must be taken into account during the development of bio-fungicides based on Cr. MenosAbstract: There is a lack of information comparing UV-B radiation conidial sensitivity of the biocontrol agent Clonostachys rosea (Cr) and its target pathogen, Botrytis cinerea (Bc). We investigated the interactions in vitro and on strawberry leaf discs between previously selected Cr and Bc strains tolerant to UV-B radiation. Strawberry leaf discs inoculated with Bc, Cr, or combinations of both fungi were exposed to UV-B doses (2.9, 5.9, and 8.9?kJ?m?2). Incidence and sporulation of both fungi were evaluated, and the Area Under Incidence Progress Curve (AUIPC) and Area Under Sporulation Progress Curve (AUSPC) were calculated. AUIPC and AUSPC of Cr on leaf discs were negatively correlated to increased UV-B. When inoculated alone on leaf discs, Bc was not affected by UV-B, but when inoculated with Cr the incidence and sporulation of Bc were positively correlated to UV-B radiation dose. In the absence of UV-B, Cr reduced incidence and sporulation of Bc. However, the ability of Cr to control Bc was reduced by 20% to 50% with increasing UV-B radiation. Increasing the applied concentration of Cr conidia 10-fold partially overcame the deleterious effects of UV-B on the ability of the biocontrol agent to reduce Bc sporulation in strawberry leaves. The selection of antagonists must fulfil many requirements; besides being active against the specific targeted plant pathogens, they must be cost-effective and have ecological characteristics suitable for the desired use conditions. We sug... Mostrar Tudo |
Palavras-Chave: |
Gray modl; Radiação ultravioleta; UV-B radiation tolerance. |
Thesagro: |
Botrytis cinerea; Controle biológico; Doença de planta; Mofo cinzento; Morango. |
Thesaurus Nal: |
Biological control; Climate change; Clonostachys rosea; Ultraviolet radiation. |
Categoria do assunto: |
H Saúde e Patologia |
Marc: |
LEADER 02572naa a2200313 a 4500 001 2061249 005 2017-01-19 008 2016 bl uuuu u00u1 u #d 024 7 $ahttp://dx.doi.org/10.1080/09583157.2016.1241981$2DOI 100 1 $aCOSTA, L. B. 245 $aUV-B radiation reduces biocontrol ability of Clonostachys rosea against Botrytis cinerea.$h[electronic resource] 260 $c2016 520 $aAbstract: There is a lack of information comparing UV-B radiation conidial sensitivity of the biocontrol agent Clonostachys rosea (Cr) and its target pathogen, Botrytis cinerea (Bc). We investigated the interactions in vitro and on strawberry leaf discs between previously selected Cr and Bc strains tolerant to UV-B radiation. Strawberry leaf discs inoculated with Bc, Cr, or combinations of both fungi were exposed to UV-B doses (2.9, 5.9, and 8.9?kJ?m?2). Incidence and sporulation of both fungi were evaluated, and the Area Under Incidence Progress Curve (AUIPC) and Area Under Sporulation Progress Curve (AUSPC) were calculated. AUIPC and AUSPC of Cr on leaf discs were negatively correlated to increased UV-B. When inoculated alone on leaf discs, Bc was not affected by UV-B, but when inoculated with Cr the incidence and sporulation of Bc were positively correlated to UV-B radiation dose. In the absence of UV-B, Cr reduced incidence and sporulation of Bc. However, the ability of Cr to control Bc was reduced by 20% to 50% with increasing UV-B radiation. Increasing the applied concentration of Cr conidia 10-fold partially overcame the deleterious effects of UV-B on the ability of the biocontrol agent to reduce Bc sporulation in strawberry leaves. The selection of antagonists must fulfil many requirements; besides being active against the specific targeted plant pathogens, they must be cost-effective and have ecological characteristics suitable for the desired use conditions. We suggest that UV-B exposure must be taken into account during the development of bio-fungicides based on Cr. 650 $aBiological control 650 $aClimate change 650 $aClonostachys rosea 650 $aUltraviolet radiation 650 $aBotrytis cinerea 650 $aControle biológico 650 $aDoença de planta 650 $aMofo cinzento 650 $aMorango 653 $aGray modl 653 $aRadiação ultravioleta 653 $aUV-B radiation tolerance 700 1 $aMORANDI, M. A. B. 700 1 $aSTRICKER, S. M. 700 1 $aBETTIOL, W. 773 $tBiocontrol Science and Technology$gv. 26, n. 12, p. 1736-1749, 2016.
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Embrapa Meio Ambiente (CNPMA) |
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