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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: |
LEADER 02275naa a2200253 a 4500
001 2141600
005 2022-07-11
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1111/jph.13094$2DOI
100 1 $aBRUMAT, A. C. L.
245 $aPhytophthora tropicalis$bCausal agent of persimmon fruit rot in Brazil.$h[electronic resource]
260 $c2022
520 $aPersimmon 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.
650 $aCaqui
650 $aDoença de Planta
650 $aPodridão do Fruto
653 $aFruit rot
653 $aPersimmon
700 1 $aDE MIO, L. L. M.
700 1 $aTESSMANN, D. J.
700 1 $aDUARTE, H. da S. S.
700 1 $aAUER, C. G.
700 1 $aSANTOS, A. F. dos
773 $tJournal of Phytopathology$gv. 170, p. 428-436, 2022.
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| 5. |  | RAMALHO FILHO, A.; PEREIRA, L. C. Avaliação da aptidão agrícola das terras do Brasil: potencial de terras e análise crítica dos principais métodos de avaliação. In: CONGRESSO LATINO AMERICANO DE CIÊNCIA DO SOLO, 13.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 1.; SIMPÓSIO BRASILEIRO SOBRE MICROBIOLOGIA DO SOLO, 4.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 6.; REUNIÃO BRASILEIRA DE MANEJO E CONSERVAÇÃO DO SOLO E DA ÁGUA, 11., 1996, Águas de Lindóia. Solo suelo 96. Campinas: Sociedade Brasileira de Ciência do Solo, 1996. 1 CD-ROM.| Biblioteca(s): Embrapa Solos. |
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| 17. | | RAMALHO FILHO, A.; PEREIRA, L. C.; OLIVEIRA, R. P. de. Sustainable land management in Brazil: potentialities and user needs. In: CONFERENCE ON GEO INFORMATION FOR SUSTAINABLE LAND MANAGEMENT, 1997, Enschede, The Netherlands. Geo-information for sustainable land management: General information, list of participants, programme, abstracts. Enschede: ITC/ISSS, 1997. Ref.5.2.| Biblioteca(s): Embrapa Solos. |
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