Fungicidal activity of essential oils from Brazilian Cerrado species against wood decay fungi
| Autor: | Cláudio Henrique Soares Del Menezzi, Roberto F. Vieira, Fernando Nunes Gouveia, Fernando C. M. Medeiros, Humberto R. Bizzo |
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| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
biology 010405 organic chemistry biology.organism_classification Lippia origanoides 01 natural sciences Microbiology 0104 chemical sciences law.invention Biomaterials Fungicide Horticulture chemistry.chemical_compound chemistry law Syzygium 010608 biotechnology Digital image analysis Botany Gloeophyllum trabeum Waste Management and Disposal Thymol Essential oil Trametes versicolor |
| Zdroj: | International Biodeterioration & Biodegradation. 114:87-93 |
| ISSN: | 0964-8305 |
| DOI: | 10.1016/j.ibiod.2016.06.003 |
| Popis: | This paper aimed to evaluate the fungicidal activity of essential oil from two Brazilian savannah species ( Lippia origanoides Kunth and L. lacunosa Mart. & Schauer) and from clove [ Syzygium aromaticum (L.) Merr. & L. M. Perry], tested against two wood decay fungi ( Gloeophyllum trabeum and Trametes versicolor ). Additionally, it was tested an adapted diffusion method along with digital images to assess the biological response. Four essential oil concentrations (100, 50, 25 and 12.5%) were tested. It was found that the essential oil from L. origanoides showed the highest fungicidal activity against G. trabeum and T. versicolor in any concentration tested. This activity is attributed to thymol, the major component of L. origanoides , and its several modes of action. L. lacunosa also showed fungicidal activity but dependent on the concentration used. The results showed that, in some cases, the essential oils presented higher inhibitions indexes than a commercial fungicide. The use of digital images has demonstrated the feasibility of making easier biological essays especially those in which there is growth without a specific geometric shape. Besides that, it gives a more sensibility and reliability to the process, since it is more accurate than human visual measurement. |
| Databáze: | OpenAIRE |
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