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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
04/01/2021 |
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Data da última atualização: |
04/01/2021 |
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Tipo da produção científica: |
Nota Técnica/Nota Científica |
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Autoria: |
BATISTA, I. C. A.; BOARI, A. de J.; KAUFFMANN, C. M.; NECHET, K. de L. |
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Afiliação: |
IZABEL CRISTINA ALVES BATISTA, UFV; ALESSANDRA DE JESUS BOARI, CPATU; CATERYNNE MELO KAUFFMANN, UFRA; KATIA DE LIMA NECHET, CNPMA. |
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Título: |
Colletotrichum plurivorum causes anthracnose on okra in Brazil. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Journal of Plant Pathology, v. 102, n. 4, article 1331, 2020 |
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DOI: |
https://doi.org/10.1007/s42161-020-00615-1 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Okra (Abelmoschus esculentus) is a tropical vegetable cultivated widely in the Amazon region. In August 2016, typical anthracnose symptoms were observed on the leaves of okra in Altamira, Pará, Brazil with 60% disease incidence. Symptomatic leaf tissue were surface sterilized, rinsed with sterile water, and plated on potato dextrose agar. Colonies had greyish white aerial mycelium in 7-day-old cultures at 25±2 °C. Conidiophores were smooth-walled, septate. Conidiogenous cells were hyaline, straight, and 19×4 m. Appressoria were single, elliptical, and 8.5×6.5 m. The conidia were aseptate, cylindrical, with round apex and base, and 13×5 m. The isolated fungus was identified as Colletotrichum sp. The isolate was deposited in Culture Collection of Microorganisms (CMAA), Jaguariúna, Brazil (CMAA 1735). The isolate was further identified by sequencing the actin (ACT), chitin synthase (CHS1), beta-tubulin (TUB) and glyceraldehyde-3-phosphate dehydrogenase (GAPDH) genes (Damm et al. 2019). The sequences were deposited in GenBank (accession Nos. MK495949, MK495952, MK495951 and MK495950) and revealed over 98% identity with Colletotrichum plurivorum (MG747766, MG600847, MG600984 and MK862223). Reference sequences of C. orchidearum and C. magnum species complexes were used for the alignment and the phylogenetic analyses conducted using Bayesian method clustered the isolate in the clade corresponding to Colletotrichum plurivorum. The pathogenicity of the isolate was confirmed by spraying a suspension of conidia (1×106 mL1) on okra cv. Santa Cruz 47 with 46 leaves and the control plants were sprayed with distilled water. The plants were maintained in a dew chamber for 24 h under greenhouse at 27 °C with a 12-h-light/dark photoperiod. After 5 days, dark brown necrotic lesions were observed on the leaves of okra plants whereas control plants were all symptomless. The fungus was re-isolated, and showed the same morphological characteristics as the inoculated strain, fulfilling Kochs postulates. C. plurivorum has been reported to infect papaya (Sun et al. 2019) and cassava (Liu et al. 2019). To our knowledge, this is the first report of Colletotrichum plurivorum causing anthracnose on okra in Brazil. MenosAbstract: Okra (Abelmoschus esculentus) is a tropical vegetable cultivated widely in the Amazon region. In August 2016, typical anthracnose symptoms were observed on the leaves of okra in Altamira, Pará, Brazil with 60% disease incidence. Symptomatic leaf tissue were surface sterilized, rinsed with sterile water, and plated on potato dextrose agar. Colonies had greyish white aerial mycelium in 7-day-old cultures at 25±2 °C. Conidiophores were smooth-walled, septate. Conidiogenous cells were hyaline, straight, and 19×4 m. Appressoria were single, elliptical, and 8.5×6.5 m. The conidia were aseptate, cylindrical, with round apex and base, and 13×5 m. The isolated fungus was identified as Colletotrichum sp. The isolate was deposited in Culture Collection of Microorganisms (CMAA), Jaguariúna, Brazil (CMAA 1735). The isolate was further identified by sequencing the actin (ACT), chitin synthase (CHS1), beta-tubulin (TUB) and glyceraldehyde-3-phosphate dehydrogenase (GAPDH) genes (Damm et al. 2019). The sequences were deposited in GenBank (accession Nos. MK495949, MK495952, MK495951 and MK495950) and revealed over 98% identity with Colletotrichum plurivorum (MG747766, MG600847, MG600984 and MK862223). Reference sequences of C. orchidearum and C. magnum species complexes were used for the alignment and the phylogenetic analyses conducted using Bayesian method clustered the isolate in the clade corresponding to Colletotrichum plurivorum. The pathogenicity of the isolate was confirmed... Mostrar Tudo |
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Palavras-Chave: |
Ascomycetes; Fungal pathogen; Vegetable. |
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Thesagro: |
Abelmoschus Esculentus; Antracnose; Doença de Planta; Quiabo. |
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Thesaurus Nal: |
Anthracnose; Fungal diseases of plants; Okra. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
LEADER 03078naa a2200289 a 4500
001 2128953
005 2021-01-04
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s42161-020-00615-1$2DOI
100 1 $aBATISTA, I. C. A.
245 $aColletotrichum plurivorum causes anthracnose on okra in Brazil.$h[electronic resource]
260 $c2020
520 $aAbstract: Okra (Abelmoschus esculentus) is a tropical vegetable cultivated widely in the Amazon region. In August 2016, typical anthracnose symptoms were observed on the leaves of okra in Altamira, Pará, Brazil with 60% disease incidence. Symptomatic leaf tissue were surface sterilized, rinsed with sterile water, and plated on potato dextrose agar. Colonies had greyish white aerial mycelium in 7-day-old cultures at 25±2 °C. Conidiophores were smooth-walled, septate. Conidiogenous cells were hyaline, straight, and 19×4 m. Appressoria were single, elliptical, and 8.5×6.5 m. The conidia were aseptate, cylindrical, with round apex and base, and 13×5 m. The isolated fungus was identified as Colletotrichum sp. The isolate was deposited in Culture Collection of Microorganisms (CMAA), Jaguariúna, Brazil (CMAA 1735). The isolate was further identified by sequencing the actin (ACT), chitin synthase (CHS1), beta-tubulin (TUB) and glyceraldehyde-3-phosphate dehydrogenase (GAPDH) genes (Damm et al. 2019). The sequences were deposited in GenBank (accession Nos. MK495949, MK495952, MK495951 and MK495950) and revealed over 98% identity with Colletotrichum plurivorum (MG747766, MG600847, MG600984 and MK862223). Reference sequences of C. orchidearum and C. magnum species complexes were used for the alignment and the phylogenetic analyses conducted using Bayesian method clustered the isolate in the clade corresponding to Colletotrichum plurivorum. The pathogenicity of the isolate was confirmed by spraying a suspension of conidia (1×106 mL1) on okra cv. Santa Cruz 47 with 46 leaves and the control plants were sprayed with distilled water. The plants were maintained in a dew chamber for 24 h under greenhouse at 27 °C with a 12-h-light/dark photoperiod. After 5 days, dark brown necrotic lesions were observed on the leaves of okra plants whereas control plants were all symptomless. The fungus was re-isolated, and showed the same morphological characteristics as the inoculated strain, fulfilling Kochs postulates. C. plurivorum has been reported to infect papaya (Sun et al. 2019) and cassava (Liu et al. 2019). To our knowledge, this is the first report of Colletotrichum plurivorum causing anthracnose on okra in Brazil.
650 $aAnthracnose
650 $aFungal diseases of plants
650 $aOkra
650 $aAbelmoschus Esculentus
650 $aAntracnose
650 $aDoença de Planta
650 $aQuiabo
653 $aAscomycetes
653 $aFungal pathogen
653 $aVegetable
700 1 $aBOARI, A. de J.
700 1 $aKAUFFMANN, C. M.
700 1 $aNECHET, K. de L.
773 $tJournal of Plant Pathology$gv. 102, n. 4, article 1331, 2020
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Algodão. |
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Data corrente: |
27/01/2020 |
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Data da última atualização: |
27/01/2020 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
SHIRATSUCHI, L. S; BRANDAO, Z. N.; SILVA JUNIOR, C. A.; BRIANTE, P. |
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Afiliação: |
luciano shozo Shiratsuchi, Louisiana State University-LSU; ZIANY NEIVA BRANDAO, CNPA; Carlos Antonio Silva Junior, Universidade do Estado de Mato Grosso-UNEMAT, Cárceres, MT; Pericles Briante, TerrAvion (1647 Alvarado Street, San Leandro, CA 94577, USA). |
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Título: |
Desenvolvimento e avaliação da aplicação em taxas variáveis de desfolhantes na cultura do algodão no âmbito de fazenda. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DO ALGODÃO, 12., 2019, Goiânia, GO. Anais... Goiânia: Abrapa, 2019. 1 p. 1 p. |
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Idioma: |
Português |
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Conteúdo: |
O objetivo deste trabalho foi desenvolver uma metodologia de mapeamento do vigor da cultura do algodoeiro utilizando imagens aéreas multiespectrais obtidas por aeronaves tripuladas para subsidiar a aplicação de desfolhantes em taxas variáveis. O experimento foi conduzido em fazenda localizada na região de Luis Eduardo Magalhaes, BA, em um talhão de 200 hectares. |
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Thesagro: |
Agricultura de Precisão; Algodão; Sensoriamento Remoto. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/209711/1/Desenvolvimento-avaliacao.pdf
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Marc: |
LEADER 01035nam a2200181 a 4500
001 2119434
005 2020-01-27
008 2019 bl uuuu u00u1 u #d
100 1 $aSHIRATSUCHI, L. S
245 $aDesenvolvimento e avaliação da aplicação em taxas variáveis de desfolhantes na cultura do algodão no âmbito de fazenda.$h[electronic resource]
260 $aIn: CONGRESSO BRASILEIRO DO ALGODÃO, 12., 2019, Goiânia, GO. Anais... Goiânia: Abrapa, 2019. 1 p. 1 p.$c2019
520 $aO objetivo deste trabalho foi desenvolver uma metodologia de mapeamento do vigor da cultura do algodoeiro utilizando imagens aéreas multiespectrais obtidas por aeronaves tripuladas para subsidiar a aplicação de desfolhantes em taxas variáveis. O experimento foi conduzido em fazenda localizada na região de Luis Eduardo Magalhaes, BA, em um talhão de 200 hectares.
650 $aAgricultura de Precisão
650 $aAlgodão
650 $aSensoriamento Remoto
700 1 $aBRANDAO, Z. N.
700 1 $aSILVA JUNIOR, C. A.
700 1 $aBRIANTE, P.
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Embrapa Algodão (CNPA) |
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