The antigungal effect of Jacquinia macrocarpa plant extract on the growth of Aspergillus flavus, A. parasiticus and Fusarium verticillioides
DOI:
https://doi.org/10.33885/sf.2014.3.1120Keywords:
antifungal activity, maize pathogens, plant extractsAbstract
The aim of this study was to evaluate the effect of fractions obtained from the plant
}ac:quinia maaocarpa. against phytopathogenic fungi AspefBillus tlavus, A. parasiticus and
Fusarium verticillioides. The powder of the dried plant materials was extracted with methanol
(70 % v/v) and partitioned with hexane, ethyl acetate, and n-butanol. The most active fraction
against the radial growth of the fungi was further fractionated by silica gel chromatography. The
fraction from}. maaocarpa partitioned in n-butanol (BF) showed the highest antifungal activity
against the three fungi. Sub-fraction F5.4 completely inhibited the growth of F. verticillioides,
whereas the radial growth of A t1avus and A parasiticus was inhibited 70 % and 64 %,
respectively. Spores germination of A parasiticus and F. verticillioides was inhibited 7.8% and
11.8 %, respectively. The lengths and diameters of hyphae of the three fungi were smaller than
those of controls. Spore diameters of the Aspergillus species were reduced, while spores of F.
vertidllioides were not affected. The spore viability of A. flaws, A parasiticus and F.
verticillioides was reduced 40.7 %, 44.8% and 46.3 %, respectively. Fraction F5.4 significantly
inhibited the developmentofthethree fungi, mainly F. verticillioides
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