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4′,5′-Dihydroxy-epiisocatalponol, a new naphthoquinone from Tectona grandis L. f. heartwood, and fungicidal activity
- Source :
- International Biodeterioration and Biodegradation, International Biodeterioration and Biodegradation, Elsevier, 2012, 74, pp.93-98. ⟨10.1016/j.ibiod.2012.03.010⟩
- Publication Year :
- 2012
- Publisher :
- Elsevier BV, 2012.
-
Abstract
- A new naphthoquinone derivative was isolated from the heartwood of the teak stem. The chemical structure of this new compound, 40,50-dihydroxy-epiisocatalponol, was determined using 1-D and 2-D nuclear magnetic resonance experiments, vibrational circular dichroism, HRMS, and optical rotation. We showed that this new naphthoquinone derivative plays a key role in the variability of decay resistance in teak wood. A high negative correlation was found between its concentration and the mass losses of the wood samples after exposure to the brown rot Antrodia sp., the fungus that is the most virulent against teak (R ¼ _0.9; r < 0.0001). In-vitro bioassays allowed us to demonstrate that 40,50-dihydroxyepiisocatalponol acted as a fungicide against Trametes versicolor (white rot) at 58 mg ml-1 (0.22 mM). Overall, our results demonstrated that the concentration of 40,50-dihydroxy-epiisocatalponol could be used as a new tool to evaluate teak wood durability.
- Subjects :
- K50 - Technologie des produits forestiers
0106 biological sciences
Stereochemistry
F60 - Physiologie et biochimie végétale
Bois de coeur
Chemical structure
01 natural sciences
Microbiology
Biomaterials
chemistry.chemical_compound
Tectona grandis
J12 - Manutention, transport, stockage et conservation des produits forestiers
Antrodia
Waste Management and Disposal
ComputingMilieux_MISCELLANEOUS
Trametes versicolor
Trametes
biology
[CHIM.ORGA]Chemical Sciences/Organic chemistry
010405 organic chemistry
Chemistry
Résistance aux maladies
biology.organism_classification
Naphthoquinone
0104 chemical sciences
Fungicide
Extrait d'origine végétale
Tectona
Fongicide
Vibrational circular dichroism
Aphyllophorales
Quinone
Derivative (chemistry)
010606 plant biology & botany
Nuclear chemistry
Subjects
Details
- ISSN :
- 09648305 and 18790208
- Volume :
- 74
- Database :
- OpenAIRE
- Journal :
- International Biodeterioration & Biodegradation
- Accession number :
- edsair.doi.dedup.....a4601e4a6f34e348eef149c3853cce74