Anthracnose of jucara palm tree (Euterpe edulis Mart.) in Brazil
2009
Siqueira, L.A., Universidade Federal Rural do Rio de Janeiro, Departamento de Entomologia e Fitopatologia, Rio de Janeiro (Brazil) | Cunha, D., Universidade Federal Rural do Rio de Janeiro, Departamento de Entomologia e Fitopatologia, Rio de Janeiro (Brazil) | Abreu, T., Universidade Federal Rural do Rio de Janeiro, Departamento de Entomologia e Fitopatologia, Rio de Janeiro (Brazil)
Juçara palm tree (Euterpe edulis Mart.) is the most important and threating species of Atlantic Forest in Brazil. It is included in the list of Brazilian flora species threatened of extinction and, classified in the class extinction danger. Besides of the ornamental value, the juçara palm tree is used as food, building material, handcraft and most recently, to pulp of juçara fruits production similar to açai palm. This species is considered an excellent antocianin source. The fuits of E. edulis contains antocianin concentration four times higher than açai fruits. Fruits of juçara palm tree were collected from branched panicles, in plenty production, in Ubatuba district, in the Northern coast of São Paulo state. The fruits were evaluated through blotter test method and fruits were tested in PDA medium. The fruits were disinfested in sodium hypoclorite 2 percent, for tree minutes and then, washed tree times with esterilized destiled water. After this procedure, the fruits were incubated in BOD during seven days, under a photoperiod of twelve hours of light and twelve hours of dark at 25 deg C. Statistic treatment was trial randomised with ten fruits per plot. On the basis of the colonies characteristics and fungi structures observed under optical microscope, and the formation of acervuli in the fruits submitted to blotter test, the fungus was identified as Colletotrichum sp. This pathogen is the causal agent of Anthracnose in juçara palm tree, and this is the first report of this disease in Brazil. Studies to identify the fungus species and to establish the management of the disease in the Atlantic Forest have been carried out.
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