Pizetta, M.; Pierozzi, C.G.; Pereira, G.V.N.; Cruz, J.C.S.; Aparecido, C.C.; Passador, M.M.; Furtado, E.L. Estudos de três meios de cultura axênicos para a ferrugem das mirtáceas. Summa Phytopathologica, v.42, n.2, p.165-169, 2016.
Palavras-chave:Puccinia psidii, Myrtaceae, cultivo de biotrófico.
RESUMO(21) e HG Harvey & Grasham (7), modificados. Comparativamente, elaboraram-se meios enriquecidos a partir de folhas de jambeiro (FJ), em quatro concentrações: 0,5; 1,0; 3,0 e 5,0 g L -1 (gramas de folhas para cada litro de água destilada). Neste estudo foi constatado apenas o primeiro estágio de crescimento fúngico, crescimento dos tubos germinativos, não apresentando continuação no desenvolvimento do patógeno. Os meios de cultura enriquecidos que propiciaram maior crescimento do tubo germinativo de P. psidii foram os meios ASZV, HG e FJ na concentração 0,5 g L -1 .
ABSTRACTAxenic cultivation has been shown as an important tool for studies related to the biology, the pathogenicity and the maintenance of pure cultures of biotrophic species. Therefore, the present study aimed to analyze the in vitro growth of Puccinia psidii uredospores, using enriched culture media that had success in the axenic cultivation of other rusts. Compounds such as salts, amino acids, carbohydrates and vitamins were selected for the preparation of three enriched culture media: ASZV Kuck (10), SH Schenk & Hildebrandt (21) Pizetta, M.; Pierozzi, C.G.; Pereira, G.V.N.; Cruz, J.C.S.; Aparecido, C.C.; Passador, M.M.; Furtado, E.L. Study of three axenic culture media for rust in Myrtaceae. Summa Phytopathologica, v.42, n.2, p.165-169, 2016. and HG Harvey & Grasham (7), modified. Comparatively, enriched media were prepared from leaves of "jambeiro" (FJ) at four concentrations: 0.5; 1.0; 3.0 and 5.0 g L -1 (grams of leaves per one liter of distilled water). In this study, verification covered only the first stage of fungal growth, germ tube growth, not continuing in the pathogen development. The enriched media that provided greater P. psidii germ tube growth were the media ASZV, HG and FJ at 0.5 g L -1 concentration.