Identification and characterization of pathogenic Pestalotiopsis species to pecan tree in Brazil.

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dc.contributorMARÍLIA LAZAROTTO, UFRGS; MARCIÉLI PITORINI BOVOLINI, Universidade Federal de Santa Maria; MARLOVE FÁTIMA BRIÃO MUNIZ, Universidade Federal de Santa Maria; RICARDO HARAKAWA, Instituto Biológico de São Paulo; LIA REJANE SILVEIRA REINIGER, Universidade Federal de Santa Maria; ALVARO FIGUEREDO DOS SANTOS, CNPF.
dc.creatorLAZAROTTO, M.
dc.creatorBOVOLINI, M. P.
dc.creatorMUNIZ, M. F. B.
dc.creatorHARAKAWA, R.
dc.creatorREINIGER, L. R. S.
dc.creatorSANTOS, A. F. dos
dc.date2014-09-11T06:51:27Z
dc.date2014-09-11T06:51:27Z
dc.date2014-09-10
dc.date2014
dc.date2014-09-11T06:51:27Z
dc.date.accessioned2026-07-07T03:24:50Z
dc.descriptionThe objective of this work was to characterize and cluster isolates of Pestalotiopsis species and to identify those that are pathogenic to pecan, based on morphological and molecular characters. Pestalotiopsis spp. isolates were identified by sequencing the internal transcribed spacer (ITS) and β‑tubulin regions. Identification methods were compared to indicate the key morphological characters for species characterization. Thirteen isolates were used for the pathogenicity tests. Morphological characterization was performed using the following variables: mycelial growth rate, sporulation, colony pigmentation, and conidial length and width. Ten pathogenic isolates were identified, three as Pestalotiopsis clavispora and three as P. cocculi. The other isolates remained as an undefined species. The morphological characters were efficient for an initial separation of the isolates, which were grouped according to differences at species level, mainly colony diameter, which was identified as an important morphological describer. Beta‑tubulin gene sequencing was less informative than the ITS region sequencing for species identification.
dc.identifierPesquisa Agropecuária Brasileira, Brasília, DF, v. 49, n. 6, p. 440-448, jun. 2014.
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/994649
dc.identifier.urihttp://hdl.handle.net/123456789/433291
dc.languageeng
dc.rightsopenAccess
dc.subjectCaracter morfológico
dc.subjectNogueira pecã
dc.subjectFitopatologia
dc.subjectFilogenia
dc.subjectPatógeno
dc.subjectCarya illinoinensis
dc.subjectPestalotiopsis
dc.titleIdentification and characterization of pathogenic Pestalotiopsis species to pecan tree in Brazil.
dc.typeArtigo de periódico

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