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vol.15 número1Extratos de plantas medicinais no controle de Diabrotica speciosa (Coleoptera: Chrysomelidae)Schinus terebinthifolius Raddi: composição química, propriedades biológicas, e toxicidade índice de autoresíndice de assuntospesquisa de artigos
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Revista Brasileira de Plantas Medicinais

versão impressa ISSN 1516-0572

Resumo

OLIVEIRA JUNIOR, L.F.G et al. Fungitoxic effect of essential oil from aroeira (Schinus terebinthifolius RADDI) on Colletotrichum gloeosporioides. Rev. bras. plantas med. [online]. 2013, vol.15, n.1, pp.150-157. ISSN 1516-0572.  http://dx.doi.org/10.1590/S1516-05722013000100021.

This study evaluated the effect of essential oil from Schinus terebinthifolius fruit on the mycelial growth of the fungus Colletotrichum gloeosporioides in vitro and on the anthracnose development during the postharvest period of papaya fruits. The different oil concentrations were diluted in 8% Tween 80. For the in vitro experiment, PDA culture media were prepared at the concentrations of 0.05, 0.10, 0.25 and 0.50% essential oil. Negative control was prepared with PDA medium alone, while solvent control was prepared with PDA medium and 8% Tween 80. Fungal growth inhibition was directly proportional to the oil amount and the greatest inhibition was 79.07% at 0.50% oil concentration. For the in vivo experiment, papaya fruits were inoculated with the fungus in four treatments: with biofilm, with biofilm plus 0.50% oil, with the fungicide Prochloraz and control fruits. Although treatment with oil was efficient against the fungus, it was not commercially recommended since it presented high values of loss of fresh mass and firmness, as well as phytotoxicity symptoms. The oil has antifungal property against C. gloeosporioides both in vitro and in vivo; however, it is not recommended for papaya fruits due to its phytotoxicity.

Palavras-chave : Carica papaya; Colletotrichum gloeosporioides; Schinus terebinthifolius; alternative control.

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