Soulef Dib

• Full Professor
• Research Director at LBMB Université Oran 1 Ahmed Ben Bella

During this work, we collected indigenous mycorrhizae from cork oak Quercus suber L. trees in the Oran cork forests. Indigenous mycorrhizae are natural mycorhizal roots that include indigenous fungi. They are called indigenous because they originate from and are adapted to the local environment. Indigenous mycorrhizae were at first examined morphol...

This research work is part of a project to develop the natural substances of higher basidiomycetes from Algeria’s forest. This study aimed to evaluate the bioactive compounds of higher fungi, by quantifying phenols and flavonoids using spectrophotometry. The assay, showed that the highest quantity of flavonoids was recorded in the extract of Tra...

Cucurbits are subject to a variety of stresses that limit their sustainable production, despite their important role in ensuring food security and nutrition. Plant stress tolerance can be enhanced through fungal endophytes. In this study, two endophytes isolated from wild plant roots, were tested to determine their effect on the growth promotion of...

The current paper provides a theoretical and experimental coupled study of synthesized N–octanoyl glycine and N–oleoyl glycine. The derivatives were characterized using nuclear magnetic resonance (1H and 13C NMR), liquid chromatography–mass spectrometry (LC-MS), Fourier–transform infrared (FT-IR), and ultraviolet–visible (UV–Vis) spectroscopy. The...

The exploration of the western forests of Algeria led to the remarkable discovery of the first occurrence of Lepista sordida, an edible wild mushroom of significant culinary importance for the local community, traditionally consumed in its natural state. This discovery was made possible through the use of various methods, including macroscopic obse...

This study concerned a species of wild edible mushroom, oyster mushroom collected in western Algeria forests, which is well consumed by the local population. These species were identified by macroscopic, microscopic and molecular characteristics. The mushroom's mycelium was isolated and the optimal conditions for mycelial growth were determined. Va...

The study focuses on a species of desert truffle Terfezia boudieri Chatin, an edible hypogeous mushroom with food value and economic and ecological interest in Algeria. This fungal species commonly growing in arid and semi-arid regions of Algeria in association with Helianthemum spp. was collected for the first time in a rare natural habitat locate...

The study focuses on a species of desert truffle Terfezia boudieri Chatin, an edible hypogeous mushroom with food value and economic and ecological interest in Algeria. This fungal species commonly growing in arid and semi-arid regions of Algeria in association with Helianthemum spp. was collected for the first time in a rare natural habitat locate...

In Algeria, forest ecosystems bring together a diversity of fungal species and little data is currently available on forest macrofungi. This preliminary study focuses on the distribution and ecology of macrofungi in two sites in Northwester of Algeria. The mycological surveys carried out for the first time during two successive years made it possib...

In this study, AlPO-34, like-chabazite zeolite, was synthesised by ionothermal method using the 1-ethyl-3-methylimidazolium chloride [EMIMCl], ionic liquid compound which acts both as solvent, structure-directing and a functionalising agent. All the characterisation methods used confirm the formation of AlPO-34 structure with [EMIMCl] inserted insid...

This study concerned the characterization of endomycorrhizal fungi associated to a variety of olive tree which is endemic to Algeria ; the Sigoise variety (Olea europea L.). The study was carried out in western Algeria where the cultivation of this variety is dominant. As methodological approaches, we used techniques that allow to highlight several...

Excessive use of chemical fungicides continues to drive research towards biological alternatives, as natural products are enjoying increasing interest in many areas and have the potential to control biological agents that cause various diseases in agricultural crops. On the other hand, the biodiversity of Basidiomycetes fungi is well recognized as...

This first study focuses on geographical distribution of desert truffles in Algeria, their diversity and their ecological requirements during growing seasons according to field surveys carried out during thirty years (1986–2016). Investigations in 61 productive sites of desert truffles spread over several bioclimatic areas revealed the presence of...

The study is about Aleppo pine, which is a very important forest plant species in Algeria. We present the preliminary results of mycorrhizal synthesis under axenic conditions between an ediblemushroom called terfez (Terfezia claveryi Chatin) and a pine species (Pinus halepensis Miller). The results showthat mycorhization by terfez improves the grow...

The chickpea is one of the most consumed crops in Algeria. Unfortunately, it is damaged by the phytopathogenic fungus Fusarium oxysporum f. sp. ciceri, the vascular wilt agent. In this study, we highlight the antagonistic activity of actinomycetes which we can use as biological tool to fight this dreaded phytopathogenic fungus. We recovered from th...

The boletes are excellent sources of new bioactive natural products with an interest in the medicinal field. Even if the use of this vast resource of mushrooms has just begun, it has become clear that they have great potential. Our research highlights the antimicrobial and antioxidant nature of organic extracts of two mushrooms belonging to boletes...

Fatty acid disubstituted 1,2,3-triazoles were prepared under optimum conditions via Huisgen's terminally induced 1,3-dipolar cycloaddition between azide and propargylic acid under microwave irradiationsand then evaluated for their antibacterial and antifungal properties. Use of dimethylformamide as solvent during 3 hours at temperature of 60°C and...

In our study, mushrooms called Trichaptum biforme are harvested in west forest of Algeria in order to research their antibacterial activity. Description of mushrooms is carried out by morphological and microscopic methods. Extract is obteined by Soxhlet from the dried sporophores of Trichaptum biforme. This extract is tested in vitro, in Petri dish...

This study focuses on the mycorrhizal potency of two desert truffle (terfez) species, Terfezia leptoderma Tulasne and Tirmania pinoyi Maire Malençon on the growth of two forest seedlings species, Quercus ilex L. and Pinus halepensisM. After more than 14 months, plants respond positively to inoculation by both species of desert truffle compared with...

Vascular wilt caused by Fusarium oxysporum f. sp. ciceri (FOC) is a disease that limits the yield of chickpea in Algeria. Biological control with antagonistic microorganisms is one of the alternatives methods to fight this fungal disease. In this work, we tested an actinomycete Streptomyces ACT2 against 03 isolates of FOC (FOC8, FOC13, FOC 15) in v...

New Schiff bases heterocyclic structures have been synthesized and evaluated for their antibacterial and antifungal properties. They were prepared by a condensation reaction of 2-amino-5-methylthiazole, 4-amino-4H-1,2,4-triazole and 3-amino-1H-1,2,4-triazole with p-vinyl benzaldehyde 1p and m-vinyl benzaldehyde 1m. The synthesized compounds were ch...

The antibacterial activity of various fractions of ethyl acetate extract isolated from edible fungi, Tirmania pinoyi (Maire) Malençon, growing in Algeria, was investigated. Extraction was done by the Soxhlet and the fractions obtained were purified with silica-gel column. Two fractions of ethyl acetate extract were tested against the bacteria Esche...

The main purpose of the project is the production of desert truffles mycorrhizal plants under greenhouse conditions and their transplantation in experimental field in arid and semi -arid regions to plane cultivation of the Algerian desert truffles in the same mode as practiced in Europe for the truffles. However, this field experiment requires the...

Les terfez sont des champignons mycorhiziens, hypogés (Ascomycètes), comestibles qui se développent surtout dans les zones arides et semi-arides du Maghreb et du Moyen Orient. Leurs corps fructifères sont appréciés par les populations de ces régions pour leur valeur alimentaire qui est non négligeable (richesse en protéines, acides gras, glucides,...