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| Registros recuperados : 2 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
04/11/2022 |
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Data da última atualização: |
04/11/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
CARVALHO, J. C. B. de; CHAIBUB, A. A.; SOUSA, K. C. I.; BRITO, D. C. de; FILIPPI, M. C. C. de; ARAÚJO, L. G. de. |
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Afiliação: |
JACQUELINE CAMPOS BORBA DE CARVALHO, UNIVERSIDADE FEDERAL DE GOIÁS; AMANDA ABDALLAH CHAIBUB, UNIVERSIDADE FEDERAL DE GOIÁS; KELLEN CRISTHINA INÁCIO SOUSA, UNIVERSIDADE FEDERAL DE GOIÁS; DENISE CANDINI DE BRITO, UNIVERSIDADE FEDERAL DE GOIÁS; MARTA CRISTINA CORSI DE FILIPPI, CNPAF; LEILA GARCES DE ARAUJO, UNIVERSIDADE FEDERAL DE GOIÁS. |
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Título: |
Efficiency of a new Waitea circinata extract against rice pathogens. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Tropical, v. 51, e66916, 2021. |
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ISSN: |
1983-4063 |
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DOI: |
https://doi.org/10.1590/1983-40632021v5166916 |
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Idioma: |
Inglês |
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Conteúdo: |
Waitea circinata (Warcup & Talbot) is an orchid antagonist mycorrhizal fungus with biocontrol potential against rice pathogens. This study aimed to optimize the extraction method, obtain a new extract and evaluate its efficiency against rice pathogens in vitro and in vivo, as well as to compare it with other extraction methods and W. circinata. The extracts were obtained and screened for in vitro growth inhibition against the pathogens Cochliobolus miyabeanus, Monographella albescens and Sarocladium oryzae, using the following extracts: mycelial, crude, lyophilized and mycelial mass. An additional in vitro assay was performed with the principal rice pathogen (Magnaporthe oryzae), in order to evaluate the conidial germination and appressorium formation. Based on this evaluation, the lyophilized and mycelial mass extracts were tested in vivo against rice blast (M. oryzae) and compared to the W. circinata mycelial suspension, in different application forms (simultaneous and previous). The mycelial mass extract inhibited all the pathogens, and the crude and lyophilized extracts inhibited C. miyabeanus and M. albescens, respectively. The mycelial mass extract inhibited the M. oryzae conidial germination and appressorium formation by 80 %, and the simultaneous and previous applications suppressed the rice blast by 94 %. These results indicate that the new extract can be used to control rice pathogens. |
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Palavras-Chave: |
Biocontrol; Biocontrole; Waitea circinata. |
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Thesagro: |
Arroz; Brusone; Escaldadura; Fungo; Mancha Parda; Podridão. |
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Thesaurus NAL: |
Blast disease; Fungal brown spot; Rice. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1148055/1/pat-2021.pdf
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Marc: |
LEADER 02377naa a2200349 a 4500
001 2148055
005 2022-11-04
008 2021 bl uuuu u00u1 u #d
022 $a1983-4063
024 7 $ahttps://doi.org/10.1590/1983-40632021v5166916$2DOI
100 1 $aCARVALHO, J. C. B. de
245 $aEfficiency of a new Waitea circinata extract against rice pathogens.$h[electronic resource]
260 $c2021
520 $aWaitea circinata (Warcup & Talbot) is an orchid antagonist mycorrhizal fungus with biocontrol potential against rice pathogens. This study aimed to optimize the extraction method, obtain a new extract and evaluate its efficiency against rice pathogens in vitro and in vivo, as well as to compare it with other extraction methods and W. circinata. The extracts were obtained and screened for in vitro growth inhibition against the pathogens Cochliobolus miyabeanus, Monographella albescens and Sarocladium oryzae, using the following extracts: mycelial, crude, lyophilized and mycelial mass. An additional in vitro assay was performed with the principal rice pathogen (Magnaporthe oryzae), in order to evaluate the conidial germination and appressorium formation. Based on this evaluation, the lyophilized and mycelial mass extracts were tested in vivo against rice blast (M. oryzae) and compared to the W. circinata mycelial suspension, in different application forms (simultaneous and previous). The mycelial mass extract inhibited all the pathogens, and the crude and lyophilized extracts inhibited C. miyabeanus and M. albescens, respectively. The mycelial mass extract inhibited the M. oryzae conidial germination and appressorium formation by 80 %, and the simultaneous and previous applications suppressed the rice blast by 94 %. These results indicate that the new extract can be used to control rice pathogens.
650 $aBlast disease
650 $aFungal brown spot
650 $aRice
650 $aArroz
650 $aBrusone
650 $aEscaldadura
650 $aFungo
650 $aMancha Parda
650 $aPodridão
653 $aBiocontrol
653 $aBiocontrole
653 $aWaitea circinata
700 1 $aCHAIBUB, A. A.
700 1 $aSOUSA, K. C. I.
700 1 $aBRITO, D. C. de
700 1 $aFILIPPI, M. C. C. de
700 1 $aARAÚJO, L. G. de
773 $tPesquisa Agropecuária Tropical$gv. 51, e66916, 2021.
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Embrapa Arroz e Feijão (CNPAF) |
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