BIOCIDES, SOIL SOLARIZATION AND FUMIGATION TO CONTROL FUSARIUM OXYSPORUM F. SP. ALBEDINIS INCITING BAYOUD DISEASE ON DATE PALM

2010 ◽  
pp. 1001-1007
Author(s):  
A. Essarioui ◽  
M.H. Sedra
Keyword(s):  
Fusarium Oxysporum ◽  
Date Palm ◽  
Soil Solarization ◽  
Bayoud Disease

Enhancement of Defence Responses against Bayoud Disease by Treatment of Date Palm Seedlings with an Hypoaggressive Fusarium oxysporum Isolate

2004 ◽  
Vol 152 (3) ◽  
pp. 182-189 ◽  
Author(s):  
M. El Hassni ◽  
F. J'Aiti ◽  
A. Dihazi ◽  
E. Ait Barka ◽  
F. Daayf ◽  
...  
Keyword(s):  
Fusarium Oxysporum ◽  
Date Palm ◽  
Defence Responses ◽  
Bayoud Disease

Bioguided Fractionation of Citrullus colocynthis Extracts and Antifungal Activity Against Fusarium oxysporum f.sp. albedinis

2020 ◽  
Vol 16 (3) ◽  
pp. 302-307
Author(s):  
Redhwane Ghazi ◽  
Noureddine Boulenouar ◽  
Abdelkrim Cheriti ◽  
Kandappa H. Reddy ◽  
Patrick Govender
Keyword(s):  
Fusarium Oxysporum ◽  
Bioactive Compounds ◽  
Date Palm ◽  
Ethanolic Extract ◽  
Citrullus Colocynthis ◽  
Efficient Treatment ◽  
Growth Technique ◽  
Antifungal Effect ◽  
Spectroscopic Analyses ◽  
Bayoud Disease

Background: In the present study, a bioguided fractionation was realized to isolate bioactive compounds on Fusarium oxysporum f.sp. albedinis (Foa) from Citrullus colocynthis L. Foa is the causal agent of “ Bayoud”, a lethal disease of date palm. Methods: Extracts of Citrullus colocynthis fruits peels using four solvents (n-hexane, dichloromethane, ethanol, chloroform) were tested for antifungal effect on Foa with radial growth technique. The ethanolic extract was selected for fractionation to isolate bioactive compounds (Percentage of Growth Reduction “PGR”: 63.6%). The fractionation was realized using six solvents (hexane, dichloromethane, ethyl acetate, methanol, butanol, water). Through fractionation, methanolic and butanolic fractions (PGR= 57.6% and 69.7%, respectively) had been chosen for bioactive compounds isolation. Results: Chromatographic and spectroscopic analyses had led to isolation of six compounds deduced as: (C1): 2-O-β-D-glucopyranosylcucurbitacin E; (C2): 2-(Nonan-8-one)-(1H)-4-quinolone; (C3): 2- (Nonan-8-one) 4-methoxy-quinoline, (C4): Isosaponarin; (C5): Isovitexin; (C6): Isoorientin 3’-Omethyl ether. The isolated compounds had been tested for antifungal effect. The compound (C1) represents the best effect among isolated compounds (PGR, up to 54.5%). Conclusion: The efficiency of (C1) reflects its opportunity to be used for the development of efficient treatment against Bayoud disease.

scholarly journals Exploring the potential of using bioactive plant products in the management of Fusarium oxysporum f.sp. albedinis: the causal agent of Bayoud disease on date palm (Phoenix dactylifera L.)

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Eimad Dine Tariq Bouhlali ◽  
Mgal Derouich ◽  
Houria Ben-Amar ◽  
Reda Meziani ◽  
Adil Essarioui
Keyword(s):  
Antifungal Activity ◽  
Fusarium Oxysporum ◽  
Plant Extracts ◽  
Date Palm ◽  
Antioxidant Properties ◽  
Phoenix Dactylifera ◽  
Trolox Equivalent Antioxidant Capacity ◽  
Dependent Manner ◽  
Antioxidant Power ◽  
Bayoud Disease

Abstract Background “Bayoud” disease caused by Fusarium oxysporum f. sp. albedinis (Foa) poses a serious threat to date palm (Phoenix dactylifera L.) in Morocco. However, research studies performed to discover biological methods to control this disease remain limited. The present study has set objectives to determine antifungal activity of five plants extracts (Acacia cyanophylla, Cupressus atlantica, Eucalyptus torquata, Nerium oleander, and Schinus molle) against Foa and link this effect to their content in polyphenols and flavonoids as well as their antioxidant properties. Results Plant extracts showed significant differences (p < 0.05) regarding their antifungal activity. 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. In addition, there were significant differences among the examined plant extracts in respect to their total polyphenols (1.536–7.348 g GAE/100 g DW), flavonoids (0.986–5.759 g RE/100 g DW), and antioxidant properties measured by Trolox equivalent antioxidant capacity (TEAC) (7.47–38.97 mmol TE/100 g DW) and ferric-reducing antioxidant power (FRAP) assay (8.95–47.36 mmol TE/100 g DW). Moreover, the antifungal potential of plant extracts was found to be moderately to strongly correlated with their polyphenol and flavonoid contents as well as their antioxidant activity, implying that the effective inhibitory activity of these plant extracts is partly due to their richness in antioxidative secondary metabolites. Conclusion Our findings shed further light on plants as a-yet-untapped resource of bioactive compounds and constructed the foundation for the development of new biological approaches to best manage Bayoud disease.

A Sinapic Derivative as an Induced Defence Compound of Date Palm Against Fusarium oxysporum f.sp. albedinis, the Agent Causing Bayoud Disease

1997 ◽  
Vol 145 (8-9) ◽  
pp. 329-333 ◽  
Author(s):  
I. El Hadrami ◽  
T. Ramos ◽  
M. El Bellaj ◽  
A. El Idrissi-Tourane ◽  
J. J. Macheix
Keyword(s):  
Fusarium Oxysporum ◽  
Date Palm ◽  
Induced Defence ◽  
Bayoud Disease

scholarly journals Biocontrol of Bayoud Disease (Fusarium oxysporum F. Sp. Albedinis) on Deglet-nour Variety of Date Palm (Phoenix dactylifera L.) in South Western Oases of Algeria

2021 ◽  
Author(s):  
Hakima Belaidi ◽  
Fawzia Toumi-Benali ◽  
Ibrahim Elkhalil Benzohra
Keyword(s):  
Fusarium Oxysporum ◽  
Date Palm ◽  
Total Mortality ◽  
Phoenix Dactylifera ◽  
Antagonistic Fungi ◽  
Palm Trees ◽  
Phoenix Dactylifera L ◽  
Complete Resistance ◽  
Bayoud Disease

Background: This work has the objective to biocontrol the bayoud disease of date palm caused by the fungus Fusarium oxysporum f. sp. albedinis (Foa), is the major disease in Algerian palm groves of south western region. This in vivo biocontrol was done on date palm variety Deglet-Nour, using two antagonistic fungi species, Trichoderma harzianum and Aspergillus flavus.Methods: Twenty Foa isolates obtained from isolation of the spines carrying the typical symptoms of Bayoud disease were used. Two strains T. harzianum and A. flavus, were isolated from rhizosphere soils of the date palm trees. Using the greenhouse screening test, which was carried out on 3-4 month-old date palm seedlings at the rate of 5 ml of inoculum suspension.Result: A statistical analysis showed a significant (P less than 0.05), difference of Deglet-Nour seedlings reactions against Foa isolates and antagonistic fungi were observed. All date palm trees present susceptibility against Foa until the total mortality of seedlings. The biocontrol test showed that two antagonists showed different reaction, with the complete resistance for seedlings treated by T. harzianum with the mortality rate (rm%) reduced at 100%, while, the second antagonist A. flavus reduced the rm% at 25%. We can apply of these antagonistic fungi to protect our groves contaminated by Bayoud disease and also contain this susceptible commercial variety.

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