Bioactivity of a methanolic extract of Peganum harmala L.seeds on the inflorescence rot agent (Mauginiella scaettae)and the fusarium rot agent (Fusarium oxysporum fsp albedinis) of date palm
¹Laboratoire des mathématiques et des sciences appliquées, Université de Ghardaïa, BP455, 47000 Ghardaïa, Algeria
²Département de Biologie, Faculté des Sciences de la Nature et de la Vie et Sciences de la Terre, Université de Ghardaïa, Algérie
³Laboratoire Valorisation et Conservation des Ecosystèmes Arides (LVCEA), Faculté des Sciences de la Nature et de la Vie et Sciences de la Terre, Université de Ghardaïa, 47000 Ghardaïa, Algérie
⁴Centre de recherche et des analyses physicochimiques CRAPC, Université de Ouargl, BP 455 Ouargla, Algérie
⁵Laboratoire de Biologie des Systèmes Microbiens (LBSM), Ecole Normale Supérieure, B.P N°92 16308 Kouba, Alger, Algeria
*Corresponence: araba.fatna@univ-ghardaia.dz
Abstract:
The antifungal activity of the methanolic extract of Peganum harmala L. seeds harvested in Algerian Sahara was assessed on the mycelial growth of Mauginiella scaettae the causal agent of inflorescence rot and Fusarium oxysporum f.sp albedinis the causal agent of vascular fusariosis of date palm (Bayoud). The phytochemical analyses revealed the absence of tannins, flavonoids, steroids and coumarins, and among others, alkaloids, saponosides and terpenoids. The antifungal tests of different concentrations prove a strong inhibitory activity of the seed extract towards Mauginiella scaettae with an average inhibition rate of 100% after 72 h from 20% concentration to 100% (v/v). For Fusarium oxysporum f. sp albedinis, the inhibition rate increased with the extract concentration and the mycelial growth in the treated plates showed a low growth rate compared to the growth of this fungus in the control. The ANOVA test reveals that the extract of Peganum harmala seeds is very effective against Mauginiella scaettae and Fusarium oxysporum f.sp albedinis, it appears to have antifungal and mycelial growth inhibitory activity.
Key words:
Fusarium oxysporum f. sp albedinis, Mauginiella scaettae, Peganum harmala L