Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/969206
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dc.contributor.authorLIMA, N. B.pt_BR
dc.contributor.authorMARQUES, M. W.pt_BR
dc.contributor.authorMICHEREFF, S. J.pt_BR
dc.contributor.authorMORAIS JÚNIOR, M. A.pt_BR
dc.contributor.authorBARBOSA, M. A. G.pt_BR
dc.contributor.authorCÂMARA, M. P. S.pt_BR
dc.date.accessioned2015-04-15T05:39:42Z-
dc.date.available2015-04-15T05:39:42Z-
dc.date.created2013-10-23pt_BR
dc.date.issued2013pt_BR
dc.identifier.citationPlant Disease, v. 97, n. 9, p. 1248, sept. 2013.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/969206pt_BR
dc.descriptionFrom April to June 2010, mango fruits (Mangifera indica L.) (cv. Tommy Atkins) showing post-harvest anthracnose symptoms were collected during a survey conducted in São Francisco Valley, northeastern Brazil. Fruits affected by anthracnose showed sunken, prominent, dark brown to black decay spots. Small pieces (4 to 5 mm) of necrotic tissues were surface sterilized for 1 min in 1.5% NaOCl, washed twice with sterile distilled water, and plated onto potato dextrose agar (PDA) amended with 0.5 g liter–1 streptomycin sulfate. Plates were incubated at 25°C in the dark for 5 to 7 days and colonies that were morphologically similar to species of Colletotrichum were transferred to PDA (1). Identification was made using morphological characteristics and phylogenetic analysis. Two isolates (CMM 4101 and CMM 4102) presented colonies that had white aerial mycelia and orange conidial mass, varying between colorless and pale orange in reverse. Conidia were hyaline, cylindrical, and aseptate 14.52 (10.40 to 20.20) μm long and 4.90 (3.80 to 6.50) μm wide, length/width ratio = 3.0. Mycelial growth rate was 5.20 mm per day at 25°C. Morphological and cultural characterizations were consistent with the description of Colletotrichum karstii (3). PCR amplification by universal primers (ITS1/ITS4) and DNA sequencing of the internal transcribed spacer (ITS1-5.8S-ITS2 rRNA gene cluster) were conducted to confirm the identifications. Analysis of representative sequences (GenBank Accession Nos. HM585409 and HM585406) suggested that the isolated pathogen was C. karstii. Using published ITS data for C. karstii (3), a phylogenetic analysis was made via Bayesian inference, which shows that the isolated fungi belong to the C. karstii clade. Sequences of the isolates obtained in this study were deposited in GenBank (KC295235 and KC295236), and cultures were deposited in the Culture Collection of Phytopathogenic Fungi of the Universidade Federal Rural de Pernambuco (CMM, Recife, Brazil). Pathogenicity tests were conducted with the C. karstii strains on mango fruits cv. Tommy Atkins. Mycelial plugs taken from the margin of actively growing colonies (PDA) of each isolate were applied in shallow wounds (0.4 cm in diameter) at the medium region of the each fruit. PDA discs without fungal growing were used as controls. Inoculated fruits were placed in plastic containers lined with paper towels wetted in distilled water. The containers were partially sealed with plastic bags to maintain high humidity and incubated at 25°C in the dark. The plastic bags and paper towels were removed after 24 h, and fruits were kept at the same temperature. The experiment was arranged in a completely randomized design with four replicates per treatment (isolate) and four fruits per replicate. Typical anthracnose symptoms were observed after 10 days in mango fruits. C. karstii was successfully reisolated from symptomatic mango fruits to fulfill Koch's postulates. C. karstiiwas previously described from Orchidaceae in southwest China and the United States (2,3). To our knowledge, this is the first report of C. karstii causing mango anthracnose in Brazil and worldwideeng
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectColletotrichum karstiipt_BR
dc.titleFirst report of mango anthracnose caused by Colletotrichum karstii in Brazil.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2015-04-15T05:39:42Zpt_BR
dc.subject.thesagroMangapt_BR
dc.subject.thesagroDoençapt_BR
dc.subject.thesagroAntracnosept_BR
dc.subject.thesagroFungopt_BR
dc.subject.thesagroPós-Colheitaeng
dc.subject.thesagroMangifera Indicaeng
dc.subject.nalthesaurusDisease controleng
dc.subject.nalthesaurusMangoeseng
dc.subject.nalthesaurusPostharvest treatmenteng
dc.subject.nalthesaurusPostharvest technologyeng
riaa.ainfo.id969206pt_BR
riaa.ainfo.lastupdate2015-04-14pt_BR
dc.identifier.doi10.1094/PDIS-01-13-0002-PDNpt_BR
dc.contributor.institutionMARIA ANGELICA GUIMARAES BARBOSA, CPATSA.pt_BR
Aparece nas coleções:Artigo em periódico indexado (CPATSA)

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