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Infection process of Cercospora coffeicola in immature coffee fruits

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dc.contributor.author Paula, Paulo Victor Augusto Azevedo de
dc.contributor.author Pozza, Edson Ampélio
dc.contributor.author Alves, Eduardo
dc.contributor.author Moreira, Silvino Intra
dc.contributor.author Paula, Júlio Cesar Azevedo
dc.contributor.author Santos, Leandro Alvarenga
dc.date.accessioned 2019-08-26T11:25:52Z
dc.date.available 2019-08-26T11:25:52Z
dc.date.issued 2019-01
dc.identifier.citation PAULA, P. V. A. A. et al. Infection process of Cercospora coffeicola in immature coffee fruits. Coffee Science, Lavras, v. 14, n. 1, p. 127-130, jan./mar. 2019. pt_BR
dc.identifier.issn 1984-3909
dc.identifier.uri http://dx.doi.org/10.25186/cs.v14i1 pt_BR
dc.identifier.uri http://www.sbicafe.ufv.br/handle/123456789/12068
dc.description.abstract Cercosporiosis is caused by Cercospora coffeicola and represents a very important coffee plants phytosanitary problem. Catuaí IAC 144 and Topázio cultivars at the F2 stage were inoculated with a conidial suspension. Samples were collected at 4, 8, 12, 24, 36, 48, 72, 96, and 168 hours after inoculation (hai) for scanning electron microscope studies. Fungal germination in epidermal surface occurred four hai; penetration only through epidermal wounds, without appressoria, started at 12 hai while the mycelial colonization occurred at 72 hai. The infection in immature coffee fruits implies brown eyespot control management anticipation need, even before the first symptoms. pt_BR
dc.description.abstract Cercosporiose é causada por Cercospora coffeicola e representa grave problema fitossanitário do cafeeiro. Frutos de cv. Catuaí IAC 144 e Topázio no estádio F2 foram inoculados com suspensão conidial. Amostras foram coletadas 4, 8, 12, 24, 36, 48, 72, 96, e 168 horas após a inoculação (hai) para estudos de microscopia eletrônica de varredura. A germinação conidial na superfície epidérmica ocorreu quatro hai; a penetração na epiderme ocorreu através de ferimentos, sem formação de apressórios, 12 hai, já a colonização micelial interna ocorreu 72 hai. A infecção de frutos imaturos implica na necessidade de antecipação no manejo da mancha de olho pardo, mesmo antes dos primeiros sintomas. pt_BR
dc.format pdf pt_BR
dc.language.iso en pt_BR
dc.publisher Editora UFLA pt_BR
dc.relation.ispartofseries Coffee Science:v.14,n.1;
dc.rights Open Access pt_BR
dc.subject Mancha de olho pardo pt_BR
dc.subject Coffea arabica pt_BR
dc.subject Microscopia eletrônica de varredura pt_BR
dc.subject.classification Cafeicultura::Pragas, doenças e plantas daninhas pt_BR
dc.title Infection process of Cercospora coffeicola in immature coffee fruits pt_BR
dc.title Processo infeccioso de Cercospora coffeicola em frutos de café imaturos pt_BR
dc.type Artigo pt_BR

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