In vitro fungicidal effect of the floral extract of Cattleya walkeriana (Gardner, 1839) (Orchidaceae)

Authors

DOI:

https://doi.org/10.14295/bjs.v4i7.761

Keywords:

Cattleya genus, Colletotrichum acutatum, Aspergillus flavus, phytochemistry, antibiosis

Abstract

Some orchid groups have shown promising results regarding biological activity in inhibiting fungal growth. This study aimed to evaluate the antifungal activity of the hydroethanolic floral extract of Cattleya walkeriana against strains of Sclerotinia sclerotiorum, Colletotrichum acutatum, C. gloeosporioides, and Aspergillus spp. (A. flavus, A. niger, and A. fumigatus) at different concentrations through in vitro assays. The extract was prepared using a 70% (v/v) hydroethanolic solution and tested on Petri dishes containing potato dextrose agar (PDA) medium inoculated with fungal strains. Results were expressed in millimeters (mm) of fungal growth inhibition (antibiosis) at concentrations of 100%, 80%, 50%, 10%, and 1.25% (v/v). The study demonstrated that higher concentrations (80% and 100%) of the hydroethanolic floral extract of Cattleya walkeriana exhibited strong antifungal activity against the tested fungal strains.

References

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Published

2025-06-19

How to Cite

Moreira, C. A. C., Barros, T. H. L., Rocha, E. N. da, Ventura, M. V. A., & Menezes Filho, A. C. P. de. (2025). In vitro fungicidal effect of the floral extract of Cattleya walkeriana (Gardner, 1839) (Orchidaceae). Brazilian Journal of Science, 4(7), 23–28. https://doi.org/10.14295/bjs.v4i7.761

Issue

Vol. 4 No. 7 (2025): Brazilian Journal of Science

Section

Agrarian and Biological Sciences

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Copyright (c) 2025 Carlos Alberto Carvalho Moreira, Elizabete Nunes da Rocha, Matheus Vinícius Abadia Ventura, Antonio Carlos Pereira de Menezes Filho

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