Data/hora: 13/06/2024 02:44:50

Biblioteca(s): | Embrapa Cerrados.
Data corrente: | 24/10/2011
Data da última atualização: | 24/10/2011
Autoria: | ZACARONI, A.; SOUZA, R. M.; MANSUR, T. O.; FIGUEIRA, A. R.; POZZA, E. A.; SUSSEL, A. A. B.
Afiliação: | A. ZACARONI, UFLA; R. M. SOUZA, UFLA; T. O. MANSUR, UFLA; A. R. FIGUEIRA, UFLA; E. A. POZZA, UFLA; ANGELO APARECIDO BARBOSA SUSSEL, CPAC.
Título: | First report of a bacterial disease in Australian cedar.
Ano de publicação: | 2011
Fonte/Imprenta: | Phytopathology, v. 101, n. 6, Supplement, p. S200, 2011.
Idioma: | Inglês
Notas: | Trabalhos apresentados no: APS-IPPC 2011 Joint Meeting in Honolulu, Hawaii, August 6?10, 2011.

Conteúdo:

The aim of this study was to isolate and identify the causal agent of a foliar
disease of Australian cedar (Toona ciliata), which is important due to the
physical characteristics of the wood and is found in nurseries in Brazil.
Exudation test, isolation, pathogenicity test and reisolation were performed,
fulfilling Koch?s postulates. The isolates were subjected to biochemical tests
to determine the genus of the pathogen. Molecular identification of the genus
of bacteria consisted of the amplification of genomic fragments of
approximately 1400 bp, using primer ERIC by polymerase chain reaction
(PCR), sequencing and phylogenetic analysis. The isolated colonies were
whitish slimy-looking, The bactéria were Gram negative, strictly aerobic
negative for utilization of carbon from arginine, asparagine and did not
produce fluorescent pigments on King B medium. They were positive for
glucose as carbon source, gas production, and starch hydrolysis. The bacteria
induced HR on tomato and pepper. The comparison of the DNA sequence of
the isolates with those available in GenBank indicated that the bacterium in
question in the genus Xanthomonas, but is not identical to any known species.

Thesagro: | Árvore; Cedro Australiano; Doença de Planta; Madeira; Toona Ciliata.
Categoria do assunto: | --
Registro original: | Embrapa Cerrados (CPAC)
Exemplares: | CPAC - (32881-1) - UPC - SP - PP - S1455 -  - S1455 - DIS