Diversité des champignons basidiomycètes à carpophores inféodés à certaines espèces des Caesalpiniaceae du Parc National du W du Niger (Afrique de l’Ouest)

Abstract

Diversity of carpophoric basidiomycete fungi infected with some species of Caesalpiniaceae from W Niger National Park (West Africa) ABSTRACT Objective: to contribute to the better understanding of macromycetes of Niger. It was conducted in the W National Park, which is located in the richest area in terms of biodiversity in the country. Methodologies and results: An inventory of fungi was conducted in four vegetation types: tree and shrub savanna with Afzelia africana and Combretum glutinosum (site 1); woodland with Isoberlinia doka and Anogeissus leiocarpa (Site 2); woodland with Isoberlinia doka and Berlinia grandiflora (site 3) and tree and shrub savanna with Burkea africana and Terminalia avicennioides (Site 4). In total, 56 species of macromycetes were identified at the study area belonging to 22 genera and 21 families. The ectomycorrhizal species amounted to 21, including 17 in site 1; 9 species in site 3; 3 in site 2 and one in site 4. This is due to the presence of some tree species from the Caesalpiniaceae family, namely Afzelia africana, Isoberlinia doka, Berlinia grandiflora and Burkea africana. Conclusion and application of results: Five ectomycorrhizal species (Amanita odorata, A. subviscosa, Lactarius gymnocarpoides, Russula albofloccosa and Phylloporus purpureus) were common tree and shrub savanna with A. africana and C. micranthum and woodland with I. doka and B. grandiflora.

Distribution De Amanita Subviscosa Beeli, Une Espèce Ectomycorhizienne Mal Connue Dans Le Parc National Du W Du Niger (Afrique De l’Ouest)

“…Elle figure également dans la flore mycologique de la Tanzanie (Härkönen et al, 1995). Aussi, dans le Parc National du W du Niger, selon plusieurs sources (Ibrahim et al, 2017 ;Hama et al, 2019a), les espèces ectomychoriziennes sont représentées par dix espèces d'amanites (Amanita subviscosa, A. masasiensis, A. afrogala, A. crassiconus, A. calopus, A. aff. craseoderma, A. aff.…”

“…Au Benin, on signale surtout ceux de De , de Yorou et al (2002) et . Au Niger, les premiers travaux sur les champignons supérieurs qui ont porté sur des travaux d'inventaires et d'ethnomycologie sont ceux de Hama (2012), de Hama et al (2010 ;2012 ;2019a,b), de Daniëls et al (2015 ; et Ibrahim et al (2017). Il ressort ainsi, l'existence de cent-cinquante (150) espèces de champignons sauvages dans la partie Sud-ouest du pays (Hama, 2012 ;Hama et al, 2019a).…”

Diversity of Basidiomycetous Macrofungi from Mpanga Forest in Mpigi District, Central Uganda

“…Apart from the nutritional and medicinal aspects, basidiomycetous macrofungi play also an important role in ecosystem functioning [10] by allowing nutrient recycling, growth, and seedling establishment in forest soil [11]. Thus, they are very good indicators of the health or age of an ecosystem [12].…”

“…However, despite being an important heritage among the world's biological resources, the documentation on their diversity is still insufficient in sub-Saharan Africa. This insufficiency is more marked in West Africa because no flora has yet been available and the recent studies were carried out by [25,26], [10],…”