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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
24/07/2017 |
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Data da última atualização: |
24/07/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
VILAS BOAS, S. A.; OLIVEIRA, S. A. S. de; BRAGANÇA, C. A. D.; RAMOS, J. B.; OLIVEIRA, E. J. de. |
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Afiliação: |
SANDIELLE ARAÚJO VILAS BOAS, UFRB; SAULO ALVES SANTOS DE OLIVEIRA, CNPMF; CARLOS AUGUSTO DÓREA BRAGANÇA, UFRB; JULIANA BARROS RAMOS, UFRB; EDER JORGE DE OLIVEIRA, CNPMF. |
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Título: |
Survey of fungi associated with cassava root rot from different producing regions in Brazil. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Scientia Agricola, v.74, n.1, p.60-67, , January/February 2017. |
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ISSN: |
1678-992X |
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DOI: |
1590/0103-9016-2015-0366 |
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Idioma: |
Inglês |
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Conteúdo: |
Although root rot is one of the major diseases affecting Brazilian cassava (Manihot esculenta Crantz.), little is known about the diversity of root rot pathogens. In this study, dis-eased plants exhibiting root rot symptoms were collected from cassava-producing regions in five Brazilian states: Bahia, Sergipe, Paraíba, Maranhão, Tocantins, and Paraná. Seventy isolates were obtained and assigned to species complexes based on rDNA?s ITS (internal transcribed spacer of the ribosomal DNA) region (ITS1, ITS2 and 5.8S). A total of seven species complexes was found belonging to the genus Fusarium (56/74), followed by Lasiodiplodia (8/74), Neos-cytalidium (6/74), and Diaporthe/Phomopsis complex (2/74), Phytophthora, and Corallomyce-tella (1/74 each). These species were distributed differently according to sample locations and states, but overall, the F. solani species complex (FSSC) was the most prevalent. A number of phylogenetic lineages had not been previously reported as being associated with cassava-root rot disease, such as: F. graminearum (FGSC), F. incarnatum-equiseti (FIESC) and F. chlamydos-porum (FCSC) complexes, and a phylogenetic lineage most closely related to P. phaseolorum. Results suggest the need to improve knowledge of the species associated with cassava, includ-ing multilocus phylogeny for a more specific characterization, and differences in the resistance background associated with these species, as a strategy to incorporate resistance to multiple pathogens in cassava breeding programs. MenosAlthough root rot is one of the major diseases affecting Brazilian cassava (Manihot esculenta Crantz.), little is known about the diversity of root rot pathogens. In this study, dis-eased plants exhibiting root rot symptoms were collected from cassava-producing regions in five Brazilian states: Bahia, Sergipe, Paraíba, Maranhão, Tocantins, and Paraná. Seventy isolates were obtained and assigned to species complexes based on rDNA?s ITS (internal transcribed spacer of the ribosomal DNA) region (ITS1, ITS2 and 5.8S). A total of seven species complexes was found belonging to the genus Fusarium (56/74), followed by Lasiodiplodia (8/74), Neos-cytalidium (6/74), and Diaporthe/Phomopsis complex (2/74), Phytophthora, and Corallomyce-tella (1/74 each). These species were distributed differently according to sample locations and states, but overall, the F. solani species complex (FSSC) was the most prevalent. A number of phylogenetic lineages had not been previously reported as being associated with cassava-root rot disease, such as: F. graminearum (FGSC), F. incarnatum-equiseti (FIESC) and F. chlamydos-porum (FCSC) complexes, and a phylogenetic lineage most closely related to P. phaseolorum. Results suggest the need to improve knowledge of the species associated with cassava, includ-ing multilocus phylogeny for a more specific characterization, and differences in the resistance background associated with these species, as a strategy to incorporate resistance to multiple pathogens in c... Mostrar Tudo |
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Thesagro: |
Mandioca. |
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Thesaurus Nal: |
Cassava. |
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Categoria do assunto: |
-- |
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Marc: |
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001 2073053
005 2017-07-24
008 2017 bl uuuu u00u1 u #d
022 $a1678-992X
024 7 $a1590/0103-9016-2015-0366$2DOI
100 1 $aVILAS BOAS, S. A.
245 $aSurvey of fungi associated with cassava root rot from different producing regions in Brazil.$h[electronic resource]
260 $c2017
520 $aAlthough root rot is one of the major diseases affecting Brazilian cassava (Manihot esculenta Crantz.), little is known about the diversity of root rot pathogens. In this study, dis-eased plants exhibiting root rot symptoms were collected from cassava-producing regions in five Brazilian states: Bahia, Sergipe, Paraíba, Maranhão, Tocantins, and Paraná. Seventy isolates were obtained and assigned to species complexes based on rDNA?s ITS (internal transcribed spacer of the ribosomal DNA) region (ITS1, ITS2 and 5.8S). A total of seven species complexes was found belonging to the genus Fusarium (56/74), followed by Lasiodiplodia (8/74), Neos-cytalidium (6/74), and Diaporthe/Phomopsis complex (2/74), Phytophthora, and Corallomyce-tella (1/74 each). These species were distributed differently according to sample locations and states, but overall, the F. solani species complex (FSSC) was the most prevalent. A number of phylogenetic lineages had not been previously reported as being associated with cassava-root rot disease, such as: F. graminearum (FGSC), F. incarnatum-equiseti (FIESC) and F. chlamydos-porum (FCSC) complexes, and a phylogenetic lineage most closely related to P. phaseolorum. Results suggest the need to improve knowledge of the species associated with cassava, includ-ing multilocus phylogeny for a more specific characterization, and differences in the resistance background associated with these species, as a strategy to incorporate resistance to multiple pathogens in cassava breeding programs.
650 $aCassava
650 $aMandioca
700 1 $aOLIVEIRA, S. A. S. de
700 1 $aBRAGANÇA, C. A. D.
700 1 $aRAMOS, J. B.
700 1 $aOLIVEIRA, E. J. de
773 $tScientia Agricola$gv.74, n.1, p.60-67, , January/February 2017.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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