Pinewood protection against sapstain using citrus essential oils

Martínez-Pacheco, Mauro M.; Reynoso, Wuilver Elder García; León, José Cruz de; González, David Raya; Flores-García, Alberto; Rojas, Abril Munro; Becerra, Crisanto Velázquez

doi:10.1590/1806-908820220000016

Cited by 2 publications

(2 citation statements)

References 29 publications

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“…The citrus essential oil contains 10.3389/fmicb. 2022.1000526 γ-terpinene which inhibits the fungus Alternaria, Hypocrea, Trichoderma, and Geosmithia on pine wood, protecting it from discoloration (Martínez-Pacheco et al, 2022). Limonene, α-pinene, and β-pinene are the main components of the essential oil from Campomanesia adamantium (Cambess.)…”

Section: Discussionmentioning

confidence: 99%

Inhibitory effect and mechanism of action of juniper essential oil on gray mold in cherry tomatoes

Zhang

et al. 2022

Front. Microbiol.

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Juniper essential oil (JEO), which is mostly known as an immune system booster and effective detoxifier, has substantial antimicrobial activity. A comparison of the inhibitory effects of three plant essential oils from juniper (Juniperus rigida), cedarwood (Juniperus virginiana), and cypress (Crupressus sempervirens) on four plant pathogenic fungi indicated that JEO was the most effective at inhibiting the growth of gray mold (Botrytis cinerea). Additional studies were subsequently conducted to explore the in vivo and in vitro antifungal activity and possible mechanism of JEO against B. cinerea. The results show that JEO inhibited the germination of spores and mycelial growth of B. cinerea in a concentration-dependent manner and exhibited strong inhibition when its concentration exceeded 10 μL/mL. JEO also significantly inhibited the incidence of disease and diameters of gray mold lesions on cherry tomato fruit (Solanum lycopersicum). After 12 h of treatment with JEO, the extracellular conductivity, and the contents of soluble protein, malondialdehyde, and hydrogen peroxide were 3.1, 1.2, 7.2, and 4.7 folds higher than those of the control group, respectively (P < 0.05), which indicated that JEO can damage membranes. Scanning electron microscopy observations revealed that JEO affected the morphology of mycelia, causing them to shrivel, twist and distort. Furthermore, JEO significantly improved the activities of the antioxidant-related enzymes superoxide dismutase and catalase but reduced the pathogenicity-related enzymes polygalacturonase (PG), pectin lyase and endoglucanase of B. cinerea (P < 0.05). In particular, PG was reduced by 93% after treatment with JEO for 12 h. Moreover, the 18 constituents of JEO were identified by gas chromatography/mass spectrometry (GC-MS) analysis, mainly limonene (15.17%), γ-terpinene (8.3%), β-myrcene (4.56%), terpinen-4-ol (24.26%), linalool (8.73%), α-terpineol (1.03%), o-cymene (8.35%) and other substances with antimicrobial activity. Therefore, JEO can be an effective alternative to prevent and control gray mold on cherry tomato fruit.

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Section: Discussionmentioning

confidence: 99%

Inhibitory effect and mechanism of action of juniper essential oil on gray mold in cherry tomatoes

Zhang

et al. 2022

Front. Microbiol.

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“…Ali et al [101] used SEM examination to show the suppression of fungal growth on wood samples after treatment with the Mentha longifolia L. and Citrus reticulata L. essential oils and compared them with untreated samples. Martinez-Pacheco et al [102] tested the antifungal activities of citrus essential oils on the fungal growth of Alternaria sp. and Trichoderma sp.…”

Section: Discussionmentioning

confidence: 99%

Eco-Friendly Preservation of Pharaonic Wooden Artifacts using Natural Green Products

Geweely,

Abu Taleb,

Grenni

et al. 2024

Applied Sciences

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The biodeterioration of wooden cultural heritage is a severe problem worldwide and fungi are the main deteriorating agents. The identification of effective natural products, safer for humans and the environment, is a current challenge. Ten deteriorated archaeological objects (a wooden statue of a seated man, an anthropoid wooden coffin with a cartonnage mummy of Nespathettawi, and a wooden box of Padimen’s son), stored at the Egyptian museum in Cairo, were considered here. The wood species of the three most deteriorated objects were previously identified as Acacia nilotica, Ficus sycomorus, and Tamarix gennessarensis. Twenty-six fungal species were isolated and identified from the wooden objects and the four most frequent species belonged to the genus Aspergillus. Fourteen fungal species among those isolated showed the greatest biodeterioration activity on the experimental wood blocks of the archaeological objects. The antifungal activities of several eco-friendly plant essential oils (from cinnamon, eucalyptus, frankincense, geranium, lavender, lemongrass, menthe, rosemary, tea tree, and thyme) and plant extracts (from basil, eucalyptus, henna, melia, and teak) were tested against the fungal species with the greatest biodeterioration activity. The essential oils (Eos) were more effective than the plant extracts. Thyme EO, followed by geranium and cinnamon ones, was the most active (minimum inhibitory concentrations: 0.25–1 µL/mL). These EO; also showed inhibitory effects on the enzymatic activities (cellulase, amylase, and protease) of the four most dominant fungal species. Thymol and p-cymene were the two main components of thyme oil, while geraniol and beta-citronellol were those of geranium oil; eugenol and caryophyllene were those of the cinnamon EO. Thyme oil applied to the most deteriorated experimental aged A. nilotica wooden cubes inoculated with the four highly frequent fungal species was effective in wood preservation. Moreover, no significant interference was observed in the wood before and after thyme treatment. Thyme oil seems to be a promising eco-friendly antifungal agent for the preservation of archaeological wooden artefacts.

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Pinewood protection against sapstain using citrus essential oils

Cited by 2 publications

References 29 publications

Inhibitory effect and mechanism of action of juniper essential oil on gray mold in cherry tomatoes

Inhibitory effect and mechanism of action of juniper essential oil on gray mold in cherry tomatoes

Eco-Friendly Preservation of Pharaonic Wooden Artifacts using Natural Green Products

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