Allal Douira

Ibn Tofaïl University · Department of Biology

This study investigated the antagonistic activity of Trichoderma asperellum against chickpea Fusarium wilt through in vitro and in vivo experiments. The dual culture test showed that Trichoderma had a significant inhibitory effect on the growth of the tested Fusarium isolates, with an inhibition rate ranging from 71.33% to 80.66%. The volatile and...

This study assesses the effectiveness of using arbuscular mycorrhizal fungi (M) and compost applied alone or in combination (vs. conventional chemical fertilizer application (NPK)) on tomato resistance to vascular wilt caused by Verticillium dahliae. In this study, ten treatments were applied: (1) Control (2) M: Rhizophagus irregularis (3) C: Compo...

The mycorrhizal association represents a crucial symbiotic bond necessary for the vitality of the majority of plants. This report aims to investigate the impact of endomycorrhizal fungi on the production of fig trees from cuttings. The research took place in a nursery environment by inoculating fig cuttings sourced from three sites in Morocco with...

The potato (Solanaceae family) is a cultivated plant primarily valued for its tubers, which serve as a crucial food source for numerous populations worldwide. Losses due to postharvest diseases are significantly high and need to be reduced. To preserve tuber quality without relying on chemical treatments, the application of plant growth promoting r...

The different Trichoderma asperellum—Pyraclostrobin + Boscalid preventive treatment programs were applied before inoculation with Colletotrichum gloeosporioides, to the aerial parts of Camarosa strawberry plants. They reduced anthracnose symptoms for 80 days, The disease severity reduction percentages on leaves were ranged from 66.66 to 99.1%. The...

In Morocco, the sour orange (Citrus aurantium L.) is the most anciently used rootstock, it remains dominant. Due to its better affinity with most commercial varieties, its adaptation to a wide range of soils and mainly due to its resistance to root rot caused by Phytophthora spp. However, it gives susceptible associations to tristeza. In vivo, seve...

The endophytic fungus Trichoderma asperellum known as biological control agent has also capacity to stimulate plant growth. Tomato plants were treated with the moroccan T. asperellum laboratory-made biofungicidal and biostimulant product slurry at a concentration of 107 conidia.mL−1 by dipping before planting and by fertigation with different volum...

The present study aimed to assess the combined effect of Trichoderma harzianum and a composite endomycorrhizal inoculum on the growth of argan seedlings in nurseries. The dual application of T. harzianum and endomycorrhizal inoculum results in the increase of all growth parameters. Indeed, fresh weight average of aerial and root parts were in the o...

The endomycorrhizal status of argan trees planted in implanted in Taounate Region was studied. Samples of fine roots taken from the rhizosphere of the trees studied revealed the presence of several endomycorrhizal structures, with a frequency of mycorrhization between 33.33% and 100% and an intensity which varies between 20% and 64.33%. Regarding t...

Lactarius glaucescens is a fascinating fungus that was first described in Morocco, in the Mamora forest, under the canopy of cork oaks (Quercus suber). This discovery has opened a new window on the mycological diversity of this region, while highlighting the importance of Mediterranean forest ecosystems for fungal biodiversity. Lactarius glaucescen...

An isolate of Curvularia spicifera obtained from Opuntia ficus indica growing around a citrus orchard, was capable to induce different symptoms in plants of Citrus aurantium, the most widely used citrus rootstock in Morocco. Dipping inoculation method of roots Citrus aurantium plants into spore suspension (106 spores/mL) of Curvularia spicifera iso...

An integrated control approach combining Trichoderma asperellum with Tolclofos-methyl (50%) resulted in moderate to high suppressive action of R. solani in culture substrate and strawberry plants attacks. This combination provided an advantageous effect regarding plant growth parameters by maintaining good root development rated at a score of 5, pr...

This work was carried out to study the synergetic effect of phospho-compost and phosphate-laundered sludge combined or not with consortia of arbuscular mycorrhizal fungi (AMF) on the growth parameters and yield of bean plants. The results showed that the highest plant length, number of leaves, flowers, and pods were noted in plants from substrates...

The use of antagonistic microorganisms such as Trichoderma in agriculture plays an important role in sustainability, production and environmental protection. Direct in vitro confrontation of Trichoderma asperellum with Rhizoctonia solani inhibited the mycelial growth of R. solani at different temperatures, with inhibition percentages varying betwee...

This study aimed to evaluate the genetic variability in the olive tree population (Olea europaea L.) of Ouezzane plantations and identify the performing clones who present interesting agronomic and technological characteristics. The results of studying of agrobiological and technological features of promising clones of olive trees are presented. Th...

The diversity of arbuscular mycorrhizal fungi (AMF) in the rhizosphere of Fig trees in the commune of Tizguite, Ifrane region (middle atlas region of northern Morocco) was presented in this study. Soil analysis revealed the presence of a diversified endomycorrhizal fungal community. The density of spores at the studied sites varied from 61 to 100 s...

Background Chickpea plant ( Cicer arietinum L.) is an important legume crop that is vulnerable to various fungal pathogens causing significant yield losses. Among them, Fusarium equiseti is a pathogen that has started to raise concern. In contrast, Trichoderma species have been explored for their ability to control such pathogens. In this study, th...

Environmental concerns are gradually reducing the global yield capacity of agricultural systems, with climate change representing the most significant challenge. Globally, Potatoes are the most essential non-cereal crop. Therefore, understanding the potential impacts of climate change on potato production is crucial for maintaining future global fo...

Phosphorus (P) is a vital limiting nutrient element for plant growth and yield. In Morocco, the natural phosphate rock extractions generate significant amounts of phosphate wash sludge (PS), which could be reused productively, thus creating another added value for farmers. The present study aimed to demonstrate the combination effect of soil amendm...

This study aims to contribute to the valorizing of aromatic and medicinal plants of Morocco by studying the antioxidant and antifungal properties of the essential oils (EOs) of Allium sativum (AS) (garlic) and Urginea maritima (Syn. Drimia maritima) tested in vitro. After the hydrodis-tillation of EOs, we determined their physicochemical indices ac...

Plant Growth Promoting Rhizobacteria (PGPR) play an essential role in enhancing plant growth, health and yield. In this study, we describe the isolation of PGPR associated with the olive tree (Olea europaea L.) grown in three Moroccan regions of Zouala, Errachidia, and Essaouira. In these regions, we isolated 95 PGPRs from rhizosphere of Olive tree...

The rhizosphere of olive trees (Olea europaea L.) is a source of bacteria with a high potential for biocontrol and plant growth promotion. In the present study, two native olive tree gram�negative bacteria were isolated from the rhizosphere of century�old trees in the region of Zouala (south-eastern Morocco), known for its arid climate and saline s...

The pathogenicity of two isolates (FS1 and FS2) of the Fusarium solani isolated from diseased chickpea plants harvested from two different regions from Morocco, which were identified morphologically and molecular, was evaluated as the severity, incidence and index of the disease. The results show that the two isolates tested were able to induce sym...

Green chemistry refers to producing chemical products and processes that eliminate or minimize the production of harmful chemicals. In recent decades, chemical constituents, mainly plant secondary compounds, have been studied for their ability to develop green nanoparticles. The demand for green nanoparticle synthesis is increasing, and plant-media...

Argan tree growth and production are both affected by drought stress, which is recognized as a critical and serious environmental issue worldwide. This study aims to examine the effect of a multi species consortium of arbuscular mycorrhizal fungi (AMF)“Rhizargan consortium”, on the leaf water status and photosynthesis in drought-stressed argan seed...

The argan tree, an endemic species in Morocco, has been exhaustively studied in its southwestern range but neglected in its northeastern territory. Thus, the present study sets as objectives the identification of arbuscular mycorrhizal fungi and the evaluation of the argan tree’s roots’ mycorrhization level in two stations: one in the region of Bén...

Angiosperm plants generate fruits that serve two essential functions: the immature fruit protects developing seeds, and the matured fruit enhances seed dissemination. Phytohormones, often known as plant hormones, occur naturally in small biological compounds or substances that have a minimal effect on physiological processes in plants at low concen...

Climate change-induced drought had hampered the growth and production of argan trees in their semi-arid and arid biogeographic areas. The purpose of this study was to determine the effects of a multispecies association of native mycorrhizal fungus `Rhizargan' on argan trees growth, mineral nutrition, and phosphatase activities under drought stress...

Saffron is a geophyte species that propagates only vegetatively through the multiplication of corms. The extension of the cultivation area needs high-quality corms. Low multiplication rates and fungal infestation of corms reduce productivity and quality, thus limiting the availability of planting material. The study of fungi linked to corms in the...

The fungal activity of a series of five molecules derived from Pyridazin-3 (2h)-ones was studied in vitro over two life-cycle stages of two strains of Phytophthora spp. And a strain of Cholletotrichum spp . They showed an activity on spore production more than the mycelial growth of the strain of Cholletotrichum spp. However, the two Phytophthora s...

From this study, it is clear that the endomycorization of the plants varies among the four genotypes studied. Sour orange (Citrus aurantium L.) and Carrizo Citrange had a higher mycorrhization frequency than the other varieties, reaching respectively 71.1% and 68.5% of infection compared to the other genotypes. The percentages of intensity in Mexic...

In poor soils, widely invaded by telluric fungi and subject to difficult environmental conditions (semi-arid and arid), the use of cultural techniques has become essential. Mycorrhizae are one of the promising strategies in the field of plant breeding and production. This symbiosis improves mineral and water nutrition and strengthens plant defenses...

In Morocco, Tomato is among vegetable production that represents a very important asset for its socio-economic development. However, this production faces many constraints that negatively affect its potential. The use of bio-fertilization appears to be an alternative to address these constraints and could also promote sustainable agricultural produ...

The biocontrol potential of the native Moroccan Trichoderma asperellum isolate has been evaluated against Colletotrichum gloeosporioides, the causal agent of strawberry anthracnose. This disease is one of the main diseases accountable for heavy economic losses in strawberry crop. In the greenhouse trials, spraying the conidial suspension of Trichod...

Surveys carried out in the coastal areas of Agadir and Essaouira, particularly at the stations of Taghazout, Tiguert, Tamri, Ain Akra (Imsounae region), Tamanar, Ait Melloul and Elkhssass, revealed the presence of many fungal and lichenic species. The identified fungi are represented by two Basidiomycetes (Auricularia auricula-judae (Bull.: Fr.) We...

The richness of the soil in beneficial and growth-stimulating microorganisms and their symbiotic interactions with plants is a factor to be discovered. This kind of relationships is still poorly studied in cannabis (Cannabis sativa L.). The endomycorrhizal status of cannabis was assessed in two cannabis varieties (Khardala and Critical) cultivated...

PurposeMining activities generate considerable quantities of wastes that are usually accumulated in the open air, and form dykes that disfigure the landscape and arable land. The present study aims to isolate and select the phosphate solubilizing bacteria (PSBs) from Phosphate Solid Sludge to improve the agronomic efficacy of phosphate bio-fertiliz...

Bryophytes Biodiversity

In this work, we aimed to develop an ecofriendly strategy to manage the R. solani damping-off incidence of Moroccan strains. After the assessment of damping-off incidence on different crops, a greenhouse experiments were carried out to assess the efficiency of chemical and biological agents on plant growth and damping-off control. Results revealed...

Fungal isolates of Fusarium were collected from symptomatic chickpea (Cicer arietinum L.) plants growing in fields within Souk Tlat commune in the Gharb region. Morphological and molecular characterizations were performed of the fungal isolate N3 obtained from a chickpea plant. PCR amplification and sequencing of the internal transcribed spacer usi...

Tomato cultivation in Côte d'Ivoire is facing problems related to soil depletion. However, mineral fertilization of these soils remains expensive and almost inaccessible to many farmers in rural areas and contributes to environmental pollution. The aims of this work is to improve the growth and production of tomato by using the mycelium of Pleurotu...

ABSTRACT Morocco decides to launch a program to create additional argan orchards to meet the high national and worldwide demand for argan products, which is a specie so unique in the world threatened by the global climate change effect. The current study aims to evaluate the efficiency of a multi- species consortium of autochthonous mycorrhizal fun...

This study on the genus coprinus was conducted in the forest area of Daloa. The objective of this work is to evaluate and list the species of the genus coprinus in the region. It will complete the knowledge acquired during previous work. The work consisted of surveys in the fallows and plantations of Daloa. After macroscopic and microscopic observa...

The widespread usage of medicinal plants in native nations' healthcare practices is a foundation for creating natural drugs. The current study sought to establish thorough ethnoveterinary knowledge of medicinal plants utilized for therapeutic reasons. The field investigation was carried out from January 2016 to Decem-ber 2020 in the Zemmour and Zay...

Saffron cultivation is an important alternative for marginalized areas. Due to low soil fertility and low water availability, arbuscular mycorrhizal fungi are an essential alternative for maintaining fertility and water economy, stimulating growth and protecting plants against soil diseases. Studies on the diversity of endomycorrhizal fungi in the...

Bromusareannual herbaceous plants belonging to the Poaceae family. It’s about the weeds that infest cereals. The most harmful one is Bromus rigidus Roth.The purpose of this study is to find out the effect of different treatments on the germination and viability of ripgut brome. The first test in vitro germination was carried out on a collection, fr...

Despite the importance of arbuscular mycorrhizal fungi (AMF) within forest and agroecosystems, few data are available about how AMF communities are structured in the root zone of the argan tree. Some studies have characterized endomycorrhizal fungi population occurring in rhizosphere soils of argan trees grown in southwest of Morocco, numerous site...

Rice ( Oryza sativa L.) is the staple food of more than half of the world population. However, its production is facing several biotic constraints. Among serious biotic factors that harm rice crops, the Helminthosporium disease has severe adverse impacts on rice yield, generating heavy losses of up to 90%. Four Bipolaris oryzae isolates were recove...

Tetraclinis articulata (Vahl.) Master or thuya is facing several constraints to its successful natural regeneration in Morocco. Containerized seedlings plantation is the only method adopted in thuya forest restoration programs and post-transplant water stress produces high seedling mortality after the first summer following outplanting. There is th...

In Morocco, Tetraclinis articulata is one of the species of great socio-economic value. Improving the resistance and survival of thuya to sometimes extreme environmental conditions is a concern of managers. For this, the use of arbuscular mycorrhizal fungi can promote the good growth of this species. We aim to study the effect of a native endomycor...

This study aimed to evaluate the effect of plant growth-promoting rhizobacteria (PGPR) and compost, applied alone or in combination, on tomato resistance to vascular wilt caused by Verticillium dahliae. Improved management of vascular wilt is important for enhanced productivity of greenhouse-grown susceptible tomato plants. The application of compo...

Soil and root samples were collected from the rhizo-sphere of planted and natural argan trees growing in the Bounaga and Smimou sites, respectively, in northwest Morocco. Frequency and intensity of my-corrhization and arbuscular content of the roots of argan trees varied between sites. Spore morphotypes on the two sites belonged to 14 species and 6...

The current study was conducted to isolate and identify rhizobacteria with PGP properties from the rhizosphere of olive tree groves in southern Morocco. The rhizobacterial isolates were evaluated in vitro for their tolerance to salinity and temperature stress as well as for their PGP activities. From a total of 160 rhizobacterial isolates, 20 were...

The present work aimed to investigate the effect of potentially beneficial soil microorganisms in enhancing the tolerance of tomato plants against Verticillium wilt. The autochthonous mycorrhizal fungi "Rhizolive consortium" and plant growth-promoting rhizobacteria (PGPR) boost the growth and development of plants by providing well-adopted strategi...

The application of arbuscular mycorrhizal fungi (AMF), plant growth promoting rhizobacteria (PGPR) and compost (C) is a biological approach to boost growth of plants. The aim of the study was to evaluate the impact of AMF, PGPR and compost on growth, physiology and biochemical traits of date palm in the absence and the presence of microorganisms in...

Identification de quelques flavonoïdes du platane de la Mamora,Maroc ...

Identification de quelques Myxomycètes du Nord-ouest du Royaume du Maroc...

We report the herbaceous plant Phyllanthus tenellus Roxb., a species native to tropical regions, from Morocco. This is the first time that the genus and species are reported from Morocco and continental North Africa. We found this species to be naturalising in several localities in northwestern Morocco. A morphological description, the geographic d...

Dans cette étude, nous effectuons, pour la première fois, la description et l'identification de plusieurs espèces de Myxomycètes récoltés à Kénitra au Maroc. Il s'agit de : Arcyria cinerea, Arcyria incarnata, Comatricha laxa, Dictydiaethalium plumbeum, Enerthenema papillatum, Fuligo septica var. septica, Lycogala flavofuscum, Reticularia lycoperdon...

Boletus mamorensis est une espèce endémique de la forêt de la Mamora au Maroc identifiée et décrite par Redeuilh en 1978.Ce Bolet subit une importante exploitation pour la consommation humaine et tend à devenir moins abondant.

Morocco has launched a vast program to rehabilitate the argan tree (Argania spinosa) and extend its cultivation under modern management (arganiculture). The promotion of tree growth in the greenhouse and the field as well as their tolerance to biotic and abiotic constraints are key factors for the success of this program. Arbuscular mycorrhizal fun...

Context: The ethnobotanical study of the plants used is of great interest in the medical field. In this perspective, we have carried out this ethnobotanical and ethnopharmacological study, which is part of the development of plant resources traditionally used against anemia in a large region of Middle Atlantic Morocco (Mam-4): Al Haouz-Rehamna. Ai...

Saffron cultivation is a viable alternative for marginal areas where low soil fertility and water availability severely limit the cultivation of other crops with higher water and input requirments. Under these conditions, arbuscular mycorrhizal fungi (AMF) are an essential alternative for maintaining fertility and water conservation, stimulating gr...

Saffron cultivation is a viable alternative for marginal areas where low soil fertility and water availability severely limit the cultivation of other crops with higher water and input requirments. Under these conditions, arbuscular mycorrhizal fungi (AMF) are an essential alternative for maintaining fertility and water conservation, stimulating gr...