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 Pleurotus ostreatus. Trials were carried out on plants from two tomato varieties F1 cobra 26 and Petomech. Four types of treatments were applied in this study; they are 10g of Pleurotus ostreatus mycelium; 5gof Pleurotus ostreatus mycelium; NPK and a control. The different treatments were done one week before transplanting and one week after transplanting. At the end of this work, all the treated plants had a significant effect on the different growth parameters studied compared to the control. The plants treated with 10g of Pleurotus ostreatus mycelium, one week before transplanting to Cobra 26, gave the best results of collar diameter, plant height and number of leaves. For the treatment one week after transplanting, only the plants treated with 10 g of Pleurotus ostreatus mycelium improved the diameter at the collar, the height of the stems and the number of leaves.

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 rhizosphere of Crocus sativus in Taliouine (Tinfat), located in Morocco, revealed the impact of age saffron plantations. A greater endomycorrhizal fungi density was recorded in the rhizosphere of saffron plants from plots operated for 2 years (138.66/100 g of soil) over that occupied for 10 years. Seventeen morphotypes of collected spores belong to 5 genera: Glomus (seven species), Acaulospora (seven species), Rhizophagus, Densicitata, and Funneliformis (one species). The weak endomycorrhizal species richness can be explained by the accumulation of C. sativus residues over time and its allelopathic effect. The beneficial effect of composite endomycorrhizal inocula, originating from Moroccan saffron plantations, was obvious in the growth of saffron plants, mother bulb number, the leaves length, root, and vegetative masses. These inocula mycorrhized over time saffron plants’ roots and can sporulate at the level of the rhizosphere of these plants. The use of composite inocula, as biofertilizers, can be one of the solutions for sustainable agriculture.

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 sites in this area harbored unexplored communities. The endomycorrhizae diversity of rhizosphere soils collected from 15 argan forest stands located in Lakhssas, Smimou, Ait Baha, Tamanar, Essaouira, Taroudant (Elkodya), Irherm, Guelmim, Imsouane, Anzi, Tiznit, Taghazoute, Ait Melloul, Bouizakarne, and Oulad Teima have revealed the presence of different AMF communities sharing some species but dissimilar AMF community compositions are noted according to sampling time and site. Additionally, the diverse AMF structures detected such as vesicles, arbuscules and hyphae reflect implicitly the germination of AMF propagules in the rhizospheric area of the Argan tree. The pre-evaluation of AMF in the soil through spores’ density can indicate AMF community dynamics, signaling either the adaptability of mycorrhizal symbionts to the local conditions or its decline. In total, 39 morphotypes of endomycorrhizal fungal spores were identified and described, representing seven genera: Glomus (15 species), Scutellospora (3 species), Entrophospora (4 species), Pacispora (2 species), Gigaspora (4 species), Acaulospora (10 species), and Ambispora (1 species). The genus Glomus has a wide occurrence and had the largest number of species. This chapter gives a great overview of the mycorrhizal status of argan trees in their natural habitats of the main Moroccan argan forests.

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 observation in the laboratory, eight (8) species of the genus Coprinus were cited and described. These are: Coprinopsis lagopus var. vacillans, Coprinus comatus, Coprinellus atramentaria, Coprinopsis nivea, Coprinus africanus, Coprinellus domesticus, Coprinus plicatilis and Coprinus auricuma. Among these species, Coprinopsis nivea, Coprinus comatus and Coprinus africanus have already been cited and described in Côte d'Ivoire. Coprinopsis lagopus var. vacillans, Coprinellus atramentaria, Coprinellus domesticus, Coprinus plicatilis and Coprinus auricuma are cited and described for the first time. The results obtained are part of the contribution to the determination of the Ivorian fungal diversity, which remains incomplete until now.