Antifungal activity of Asteriscus graveolens (Forssk.) Less essential oil against Fusarium oxysporum f. sp. albedinis, the causal agent of “Bayoud” disease on date palm

Chibane, El Mustapha; Essarioui, Adil; Ouknin, Mohamed; Boumezzourh, A.; Bouyanzer, A.; Majidi, L.

doi:10.48317/imist.prsm/morjchem-v8i2.19100

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“…Several research works investigated the antifungal activity of numerous plants’ crude extracts and essential oils against F. oxysporum f. sp. albedinis [ 1 , 2 , 3 , 46 , 47 ]. The study by Rahmouni et al investigated the antifungal activity of essential oils of five medicinal and aromatic plants collected from northern Morocco against the same pathogen isolate F. oxysporum f. sp.…”

Section: Resultsmentioning

confidence: 99%

“…On the other hand, Rahmouni et al also evaluated the activity of the major components of its plant which included three molecules present in the current analysed essential oil as major compounds, namely, α-pinene, borneol and with a small percentage of α-terpineol, and these compounds possessed an anti-Fusarium effect [3]. The previous studies by Chibane et al [47] and Chibane et al [1] cited, respectively, that the essential oil of Cladanthus eriolepis and Asteriscus graveolens showed growth inhibition values of 86.20% and 100% against Foa at the concentration of 4 µL/mL, which is slightly higher than our concentration. Concerning the crude extracts, Bouhlali et al, previously determined the antifungal activity of five plant extracts, namely, Acacia cyanophylla, Cupressus atlantica, Eucalyptus torquata, Nerium oleander and Schinus molle, against Foa, and results showed that all extracts possessed antifungal activity, where the extracts of E. torquata and C. atlantica showed the strongest antifungal effect resulting in the inhibition of mycelial growth, sporulation and spore germination in a dose-dependent manner [2].…”

Section: Antifungal Activity and Synergistic Effectmentioning

confidence: 99%

“…The date palm ( Phoenix dactylifera L.) is an important food source and commercial perennial crop in the Sahara and North Africa [ 1 ]. It plays essential economic and environmental roles in the oasis regions by creating a suitable microclimate for growing other food crops and protecting oases from silting and desertification [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

“…It plays essential economic and environmental roles in the oasis regions by creating a suitable microclimate for growing other food crops and protecting oases from silting and desertification [ 2 ]. In Morocco, the date palm has been cultivated on over 48,000 ha of traditional and genetically diverse oases and 20,000 ha of modern plantations cultivating commercial varieties in the southern part of the country [ 1 , 2 ]. One of the biggest destructive diseases of palm trees and a higher risk for the future of the date industrial sector in Morocco, as well as other countries producing dates, is commonly known in Morocco as “Bayoud”, which is a vascular disease, caused by a soil fungus, Fusarium oxysporum f. sp.…”

Section: Introductionmentioning

confidence: 99%

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Chemical Characterization and Antifungal Activity of Blue Tansy (Tanacetum annuum) Essential Oil and Crude Extracts against Fusarium oxysporum f. sp. albedinis, an Agent Causing Bayoud Disease of Date Palm

Ettakifi,

Abbassi,

Maouni

et al. 2023

Antibiotics

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Tanacetum annuum L. is a Mediterranean plant, commonly known as Blue Tansy due to its blue colour as an essential oil, which is widely used for medicinal purposes. However, there are no studies on the bioactive compounds (especially, phenolic compounds) and the biological properties of their organic extracts. Herein, the purpose of the present work was to investigate the chemical composition of the essential oil and crude extracts of the T. annuum aerial parts collected from northern Morocco and to evaluate their antioxidant and antifungal activity against Fusarium oxysporum f. sp. albedinis, an agent causing Bayoud disease of the date palm, an important food source and commercial perennial crop in the Sahara and North Africa. Chemically, Folin–Ciocalteu and aluminium chloride colourimetric methods were used to determine the total phenolic (TPC) and total flavonoid (TFC) contents, respectively; polyphenols were characterized using HPLC-MS, while GC-MS was used to analyse the essential oil composition. Moreover, the evaluation of antioxidant and antifungal activities was carried out using the DPPH test and microdilution method, respectively. The results showed that the three T. annuum parts (stems, leaves and flowers) extracts contained important TPC and TFC with values varied between 51.32 and 116.32 mg/g of dry crude extract (DCE). HPLC-MS analysis revealed the identification and quantification of 19 phenolic acids and flavonoids with an emphasis on apigenin 7-glucoside (4540 µg/g of dry weight (DW)), luteolin 7-glucoside (2804 µg/g DW) and salicylic acid (1878 µg/g DW). Additionally, 39 biomolecules were identified in the essential oil using GC-MS, which were predominated by camphor (16.69%), α-pinene (12.37%), bornyl acetate (11.97%) and limonene (11.10%). The methanolic and hydro-methanolic extracts of T. annuum parts demonstrated a strong antioxidant property with IC50 values ranging between 0.22 and 0.65 mg/mL. Concerning antifungal activity, the essential oil and crude extracts of the Moroccan Blue Tansy exhibited a potent capacity against F. oxysporum f. sp. albedinis at low concentrations, with MIC and MFC values of 3.33 and 4.58 µL/mL for the essential oil and values of 3.33 and 9.17 mg/mL for crude extracts, respectively. Overall, these results demonstrated T. annuum as an important source of bioactive compounds and contribute significantly to the potential of using essential oils and extracts for controlling the Bayoud disease of date palms. Moreover, the finding suggests that T. annuum can be highly useful for phytosanitary and pharmaceutical industries.

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