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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
30/03/2022 |
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Data da última atualização: |
11/07/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BRUMAT, A. C. L.; DE MIO, L. L. M.; TESSMANN, D. J.; DUARTE, H. da S. S.; AUER, C. G.; SANTOS, A. F. dos. |
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Afiliação: |
ANA CAROLINA LYRA BRUMAT, UFPR; LOUISE LARISSA MAY DE MIO, UFPR; DAURI JOSÉ TESSMANN, UEM; HENRIQUE DA SILVA SILVEIRA DUARTE, UFPR; CELSO GARCIA AUER, CNPF; ALVARO FIGUEREDO DOS SANTOS, UFPR. |
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Título: |
Phytophthora tropicalis: Causal agent of persimmon fruit rot in Brazil. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Journal of Phytopathology, v. 170, p. 428-436, 2022. |
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DOI: |
https://doi.org/10.1111/jph.13094 |
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Idioma: |
Português |
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Conteúdo: |
Persimmon fruit (Diospyros kaki L.) from commercial orchards located in southern Brazil, in Curitiba, Paraná, showed dark firm rot. The incidence in the field was about 2% in an evaluation in the 2016 growing season, and from these infected fruit, three Phytophthora sp. isolates were obtained. Therefore, this study aimed to identify the causal agent of the disease through morphophysiological and molecular analysis of the isolates. Initially, the pathogenicity test was performed on persimmon fruit to fulfil Koch's postulates. Mycelial growth at eight temperatures ranging from 8°C to 35°C was evaluated for taxonomic purposes. Next, the morphological characteristics of sporangia, chlamydospores and oospores were evaluated. For molecular characterization, sequencing of the ITS-rDNA region and portions of the COXI and TEF1? genes and phylogenetic analysis were performed. All isolates were pathogenic, causing symptoms of firm and dark rot similar to those observed in the orchards. Mycelial growth was not observed at 35°C. There was an abundant production of ellipsoid, papillate, deciduous sporangia with long pedicels and the formation of globose chlamydospores. The isolates were heterothallic, all belonging to group A1, in which the production of plerotic oospores with amphigenous antheridia was verified. The morphophysiological and molecular characterization allowed the identification of the isolates as Phytophthora tropicalis. To our knowledge, this is the first report of persimmon fruit rot caused by P. tropicalis. MenosPersimmon fruit (Diospyros kaki L.) from commercial orchards located in southern Brazil, in Curitiba, Paraná, showed dark firm rot. The incidence in the field was about 2% in an evaluation in the 2016 growing season, and from these infected fruit, three Phytophthora sp. isolates were obtained. Therefore, this study aimed to identify the causal agent of the disease through morphophysiological and molecular analysis of the isolates. Initially, the pathogenicity test was performed on persimmon fruit to fulfil Koch's postulates. Mycelial growth at eight temperatures ranging from 8°C to 35°C was evaluated for taxonomic purposes. Next, the morphological characteristics of sporangia, chlamydospores and oospores were evaluated. For molecular characterization, sequencing of the ITS-rDNA region and portions of the COXI and TEF1? genes and phylogenetic analysis were performed. All isolates were pathogenic, causing symptoms of firm and dark rot similar to those observed in the orchards. Mycelial growth was not observed at 35°C. There was an abundant production of ellipsoid, papillate, deciduous sporangia with long pedicels and the formation of globose chlamydospores. The isolates were heterothallic, all belonging to group A1, in which the production of plerotic oospores with amphigenous antheridia was verified. The morphophysiological and molecular characterization allowed the identification of the isolates as Phytophthora tropicalis. To our knowledge, this is the first report of persim... Mostrar Tudo |
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Palavras-Chave: |
Fruit rot; Persimmon. |
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Thesagro: |
Caqui; Doença de Planta; Podridão do Fruto. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
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Registro original: |
Embrapa Florestas (CNPF) |
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| Registros recuperados : 7 | |
| 2. |  | CANCADO, G. M. A.; CARVALHO, F. T.; SCHAFFERT, R. E.; PARENTONI, S. N.; PAIVA, E.; LOPES, M. A. Screening maize and sorghum genotypes for variations in root proteins associated with response to toxic aluminum. In: INTERNATIONAL SYMPOSIUM ON PLANT SOIL INTERACTIONS AT LOW pH, 4., 1996, Belo Horizonte. Abstracts... Sete Lagoas: EMBRAPA-CNPMS, 1996. p. 102.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 3. | | CARVALHO, F. T.; GANCADO, G. M. A.; PARENTONI, S. N.; PAIVA, E.; VASCONCELOS, M. J. V.; LOPES, M. A. Desenvolvimento radicular do milho (Zea mays) sob estresse de alumínio. Revista Brasileira de Genética, Ribeirão Preto, v. 20, n. 3, p. 187, 1997. Suplemento. Edição dos resumos do 43º Congresso Nacional de Genética.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 4. | | SCHAFFERT, R. E.; LOPES, M. A.; CARVALHO, F. T.; PORTUGAL, R. S.; CANCADO, G. M.; VASCONCELOS, M. J.; PAIVA, E. Induction of root protein to near isogenic sorghum lines tolerance and susceptible to toxic levels of exchangeable aluminum. In: INTERNATIONAL CONFERENCE ON GENETIC IMPROVEMENT OF SORGHUM AND PEARL MILLET, 1996, Lubbock, Texas. Proceedings. Cali: INTSORMIL/ICRISAT, 1997. p. 674. (Publication, 97-5).| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 5. | | CARVALHO, F. T. de; NOVAIS, R. F. de; ALVAREZ V. V. H.; BARROS, N. F. de; CANTARUTTI, R. B.; BAHIA FILHO, A. F. C. Sistema de interpretação de análise de solo para recomendação de NPK para a cultura do milho. Revista Ceres, Viçosa, v. 53, n. 306, p. 211-223, 2006.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: -- - -- |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 7. | | CARVALHO, F. T.; CANCADO, G. M. A.; SCHAFFERT, R. E.; PARENTONI, S. N.; PAIVA, E.; VASCONCELOS, M. J. V.; LOPES, M. A. Identificação de proteínas envolvidas no processo de resposta ao estresse de alumínio e sorgo. In: CONGRESSO NACIONAL DE MILHO E SORGO, 21., 1996, Londrina. Resumos... Londrina: IAPAR, 1996. p. 27.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| Registros recuperados : 7 | |
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