Lekchiri, Souad, Hakim, Taoufik, Zahir, Hafida, Benabbes, Redouane, El Fazazi, Kaoutar, Zanane, Chorouk, Jaafari, Abdeslam, ELLouali, Mostafa, Latrache, Hassane (2021). Interfacial mechanisms involved in the interaction between Fusarium oxysporum f. sp. albedinis and date palm root. , 10(3), 483-492. doi: 10.48311/jcp.2021.1549
Souad Lekchiri; Taoufik Hakim; Hafida Zahir; Redouane Benabbes; Kaoutar El Fazazi; Chorouk Zanane; Abdeslam Jaafari; Mostafa ELLouali; Hassane Latrache. "Interfacial mechanisms involved in the interaction between Fusarium oxysporum f. sp. albedinis and date palm root". , 10, 3, 2021, 483-492. doi: 10.48311/jcp.2021.1549
Lekchiri, Souad, Hakim, Taoufik, Zahir, Hafida, Benabbes, Redouane, El Fazazi, Kaoutar, Zanane, Chorouk, Jaafari, Abdeslam, ELLouali, Mostafa, Latrache, Hassane (2021). 'Interfacial mechanisms involved in the interaction between Fusarium oxysporum f. sp. albedinis and date palm root', , 10(3), pp. 483-492. doi: 10.48311/jcp.2021.1549
Lekchiri, Souad, Hakim, Taoufik, Zahir, Hafida, Benabbes, Redouane, El Fazazi, Kaoutar, Zanane, Chorouk, Jaafari, Abdeslam, ELLouali, Mostafa, Latrache, Hassane Interfacial mechanisms involved in the interaction between Fusarium oxysporum f. sp. albedinis and date palm root. , 2021; 10(3): 483-492. doi: 10.48311/jcp.2021.1549

Interfacial mechanisms involved in the interaction between Fusarium oxysporum f. sp. albedinis and date palm root

Journal of Crop Protection
Article 5, Volume 10, Issue 3, 2021, Pages 483-492    PDF (220.13 K)
Document Type: Original Research
DOI: 10.48311/jcp.2021.1549
Authors
Souad Lekchiri* 1; Taoufik Hakim1; Hafida Zahir1; Redouane Benabbes2; Kaoutar El Fazazi1; Chorouk Zanane1; Abdeslam Jaafari1; Mostafa ELLouali1; Hassane Latrache1
1Bioprocess and Biointerface Laboratory, Faculty of Science and Techniques, Sultan Moulay Slimane University, BP: 523, BeniMellal, 23000, Morocco.
2Faculty of Sciences, Mohammed I University, BP: 717, Bd Mohammed VI, Oujda, Morocco.
Abstract
Our study aims to evaluate the physicochemical mechanism involved in the adhesion of Fusarium oxysporum f. sp. albedinis (Foa) on date palm root of resistant (Aziza M) and susceptible (Boufegouss) varieties by determining their surface properties. Hydrophobicity of Date palm root and Foa was evaluated by contact angle measurement (θw) and free energy of interaction determination (∆Giwi). Our results showed that Foa surface is hydrophilic (θw = 30.57° and ΔGiwi = 15.51 mj/m2) and has an important electron donor character (γ- = 53,99mj/m2), whereas its electron acceptor property is low (γ+ = 8.95 mj/m2). Regarding date palm, the surface of sensitive variety’s root is hydrophilic (θw = 62.97°), while that of resistant variety is hydrophobic (θw = 69.50°). This character was confirmed by quantitative approach (ΔGiwi = 6.84 mj/m2 for sensitive variety and ΔGiwi = -20.61 mj/m2 for resistant variety). Also, it was noted that both resistant and sensitive varieties are weak electron acceptors (γ + = 0.15 mj/m2 and γ + = 0.08 mj/m2 for resistant and sensitive varieties respectively). The two varieties are relatively important electron donors, but the sensitive variety is more donor (γ- = 30.5 mj/m2) than the resistant one (γ- = 16.57 mj/m2). These results suggest that hydrophilic character and electron donor/acceptor character may be responsible for the adhesion of Foa on sensitive date palm root and therefore causes its susceptibility to bayoud disease. In contrast, the hydrophobic character of the resistant variety could explain its resistance.
Keywords
Fusarium; date palm; Physicochemical; Adhesion; Resistance; Sensitivity
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