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Registro Completo |
Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
Data corrente: |
12/05/2020 |
Data da última atualização: |
19/05/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
OLIVEIRA, S. A. S. de; SILVA, L. L. da; NASCIMENTO, D. de S.; DIAMANTINO, M. S. A. S.; FERREIRA, C. F.; OLIVEIRA, T. A. S. de. |
Afiliação: |
SAULO ALVES SANTOS DE OLIVEIRA, CNPMF; LEANDRO LOPES DA SILVA, UFRB; DANIELA DE SOUZA NASCIMENTO, UFRB; MARIA SELMA ALVES SILVA DIAMANTINO; CLAUDIA FORTES FERREIRA, CNPMF; THIAGO ALVES SANTOS DE OLIVEIRA, UEFS. |
Título: |
Colletotrichum species causing cassava (Manihot esculenta Crantz) anthracnose in different eco-zones within the Recôncavo Region of Bahia, Brazil. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
Journal of Plant Diseases and Protection, April 2020. |
ISSN: |
1861-3829 |
DOI: |
https://doi.org/10.1007/s41348-020-00327-9 |
Idioma: |
Português |
Conteúdo: |
A survey to investigate the occurrence of cassava anthracnose disease (CAD) and distribution of Colletotrichum spp. in cassava plantations in different eco-zones of the Reconcavo Region in Bahia, Brazil, investigated during the rainy season of 2014. A total of 50 cassava fields distributed among 18 municipalities were visited and intensity of anthracnose evaluated. The highest disease incidence (DI) (83.3%) was in samples collected in São Félix, and the lowest (34.4%), in Varzedo. Municipalities that presented the highest values for DI were located within the ?Af? Köppen?Geiger eco-zone, also presenting the highest values for the estimated McKinney disease index. Based on previous studies of multilocus phylogeny, seven different species of Colletotrichum were identified (Colletotrichum fructicola, Colletotrichum tropicale, Colletotrichum gloeosporioides s.s, Colletotrichum theobromicola, Colletotrichum siamense, Colletotrichum brevisporum and Colletotrichum plurivorum) and a new approach based on ERIC-PCR was used aiming to group the 82 isolates according to these findings. The highest percentage of genetic variance (>78%) was among isolates within fields. Based on the survey and genetic analysis, C. fructicola is probably the main causal agent of cassava anthracnose in the Recôncavo Region, since this species was present with highest incidence in all eco-zones, 47.61, 42.86 and 57.14% for Af (tropical rainforest climate), As (tropical dry savanna climate) and Aw (tropical wet savanna climate), respectively. This study is the first report of C. fructicola lineages as the most likely pathogen causing anthracnose disease of cassava in Brazil, and these findings may be used to guide the selection of resistant varieties. MenosA survey to investigate the occurrence of cassava anthracnose disease (CAD) and distribution of Colletotrichum spp. in cassava plantations in different eco-zones of the Reconcavo Region in Bahia, Brazil, investigated during the rainy season of 2014. A total of 50 cassava fields distributed among 18 municipalities were visited and intensity of anthracnose evaluated. The highest disease incidence (DI) (83.3%) was in samples collected in São Félix, and the lowest (34.4%), in Varzedo. Municipalities that presented the highest values for DI were located within the ?Af? Köppen?Geiger eco-zone, also presenting the highest values for the estimated McKinney disease index. Based on previous studies of multilocus phylogeny, seven different species of Colletotrichum were identified (Colletotrichum fructicola, Colletotrichum tropicale, Colletotrichum gloeosporioides s.s, Colletotrichum theobromicola, Colletotrichum siamense, Colletotrichum brevisporum and Colletotrichum plurivorum) and a new approach based on ERIC-PCR was used aiming to group the 82 isolates according to these findings. The highest percentage of genetic variance (>78%) was among isolates within fields. Based on the survey and genetic analysis, C. fructicola is probably the main causal agent of cassava anthracnose in the Recôncavo Region, since this species was present with highest incidence in all eco-zones, 47.61, 42.86 and 57.14% for Af (tropical rainforest climate), As (tropical dry savanna climate) and Aw (tropical w... Mostrar Tudo |
Thesagro: |
Mandioca. |
Thesaurus Nal: |
Cassava. |
Categoria do assunto: |
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Marc: |
LEADER 02525naa a2200229 a 4500 001 2122243 005 2023-05-19 008 2020 bl uuuu u00u1 u #d 022 $a1861-3829 024 7 $ahttps://doi.org/10.1007/s41348-020-00327-9$2DOI 100 1 $aOLIVEIRA, S. A. S. de 245 $aColletotrichum species causing cassava (Manihot esculenta Crantz) anthracnose in different eco-zones within the Recôncavo Region of Bahia, Brazil.$h[electronic resource] 260 $c2020 520 $aA survey to investigate the occurrence of cassava anthracnose disease (CAD) and distribution of Colletotrichum spp. in cassava plantations in different eco-zones of the Reconcavo Region in Bahia, Brazil, investigated during the rainy season of 2014. A total of 50 cassava fields distributed among 18 municipalities were visited and intensity of anthracnose evaluated. The highest disease incidence (DI) (83.3%) was in samples collected in São Félix, and the lowest (34.4%), in Varzedo. Municipalities that presented the highest values for DI were located within the ?Af? Köppen?Geiger eco-zone, also presenting the highest values for the estimated McKinney disease index. Based on previous studies of multilocus phylogeny, seven different species of Colletotrichum were identified (Colletotrichum fructicola, Colletotrichum tropicale, Colletotrichum gloeosporioides s.s, Colletotrichum theobromicola, Colletotrichum siamense, Colletotrichum brevisporum and Colletotrichum plurivorum) and a new approach based on ERIC-PCR was used aiming to group the 82 isolates according to these findings. The highest percentage of genetic variance (>78%) was among isolates within fields. Based on the survey and genetic analysis, C. fructicola is probably the main causal agent of cassava anthracnose in the Recôncavo Region, since this species was present with highest incidence in all eco-zones, 47.61, 42.86 and 57.14% for Af (tropical rainforest climate), As (tropical dry savanna climate) and Aw (tropical wet savanna climate), respectively. This study is the first report of C. fructicola lineages as the most likely pathogen causing anthracnose disease of cassava in Brazil, and these findings may be used to guide the selection of resistant varieties. 650 $aCassava 650 $aMandioca 700 1 $aSILVA, L. L. da 700 1 $aNASCIMENTO, D. de S. 700 1 $aDIAMANTINO, M. S. A. S. 700 1 $aFERREIRA, C. F. 700 1 $aOLIVEIRA, T. A. S. de 773 $tJournal of Plant Diseases and Protection, April 2020.
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4. | | SANTANA, M. P.; NASCIMENTO, D. de S.; HOHENFELD, C. S.; OLIVEIRA, S. A. S. de. Influência da temperatura na severidade das podridões seca, negra e mole em raiz de mandioca. In: JORNADA CIENTÍFICA EMBRAPA MANDIOCA E FRUTICULTURA, 9., 2015: Cruz das Almas, BA. Pesquisa: para quê? para quem? : resumos. Brasília, DF : Embrapa, 2015.Tipo: Resumo em Anais de Congresso |
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