We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
ANTIFUNGAL ACTIVITY OF Heteranthera reniformis EXTRACTS AGAINST Bipolaris oryzae.
- Authors
TESSARI PERBONI, LAÍS; AGOSTINETTO, DIRCEU; JACOBSEN DE FARIAS, CANDIDA RENATA; CLASEN CHAVES, FÁBIO; RODRIGUES GARCIA, JÉSSICA
- Abstract
Plants synthesize specialized metabolites to defend themselves against pathogens. These active compounds, when isolated and identified, can be used as template for fungicide development. Based on field observations, Heteranthera reniformis (kidney leaf mudplantain) could potentially synthesize compounds with antifungal activity. The goal of this study was to evaluate the fungicidal activity of H. reniformis leaf extracts on Bipolaris oryzae development. The activities of hexane, ethyl acetate, and methanol extracts of H. reniformis leaves were tested on mycelial growth, sporulation, and colony morphology. Due to the highest inhibition of B. oryzae sporulation, methanol extract was chosen for concentration tests. The effect of methanol extract on B. oryzae spore length and germination was also evaluated. Methanolic extract was the most active in inhibiting B. oryzae sporulation. The morphology of the colonies is altered when the fungus grows in medium containing H. reniformis leaf extracts. Higher concentration of methanol extract stimulates mycelial growth and suppresses B. oryzae sporulation. There are reductions in length and number of germinated B. oryzae spores caused by methanol extract of H. reniformis leaves. Methanolic extract has compounds with antifungal activity and should be subjected to bioassay-guided isolation for purification and identification of these active compounds.
- Subjects
HEXANE; ANTIFUNGAL agents; ETHYL acetate; EXTRACTS; LEAF spots
- Publication
Revista Caatinga, 2021, Vol 34, Issue 2, p339
- ISSN
0100-316X
- Publication type
Article
- DOI
10.1590/1983-21252021v34n210rc