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Etude ethnobotanique de plantes antifongiques utilisées traditionnellement en Côte d’Ivoire et du potentiel de <i>Piliostigma Thonningii</i> (schumach.) milneredh. (Fabaceae) dans le contrôle de souches telluriques
Author(s) -
Etienne Katinan Ouattara,
Coulibaly Kiyinlma,
Théodore Dibié Etien,
Noël Guédé Zirihi
Publication year - 2020
Publication title -
international journal of biological and chemical sciences
Language(s) - English
Resource type - Journals
eISSN - 1997-342X
pISSN - 1991-8631
DOI - 10.4314/ijbcs.v14i1.20
Subject(s) - antifungal , traditional medicine , cote d ivoire , phytochemical , horticulture , euphorbiaceae , chemistry , botany , biology , medicine , humanities , art , microbiology and biotechnology
A la recherche de moyen de lutte contre les agents pathogenes, une enquete ethnobotanique a ete menee dans des villages Tagbana (Departement de Katiola, Cote d’Ivoire). 102 traditherapeutes dont 67 femmes et 35 hommes, utilisent 29 especes de plantes pour leur effet antifongique. La famille des Euphorbiaceae avec 5 especes, soit 17,85% est la plus representee. Piliostigma thonningii avec une frequence de citation de 24,24%, apparait comme l’espece la plus sollicitee. Le criblage phytochimique realise sur les extraits aqueux et ethanolique 70% des feuilles de Piliostigma thonningii a mis en evidence la presence des tanins, des flavonoides, des saponines, des sterols, des alcaloides et des terpenes. Le potentiel antifongique des extraits aqueux et ethanolique 70% a ete evaluee par la methode de la double dilution en milieu Potato, Dextrose, Agar. Les resultats ont montre que seul l’extrait hydroethanolique 70% des feuilles de Piliostigma thonningii possedent des proprietes antifongiques a la fois sur Colletotrichum musae (concentration minimale inhibitrice est 12,5 mg/ml et concentration minimale fongicide est 50 mg/ml) et Sclerotium rolfsii (concentration minimale inhibitrice est 12,5 mg/ml et concentration minimale fongicide est 50 mg/ml). Cette etude met en evidence le pouvoir therapeutique des plantes medicinales et les principes actifs qu’elles contiennent. Elle pourrait etre d’un grand apport dans l’agronomie, dans le cadre de la lutte contre les champignons phytopathogenes. © 2020 International Formulae Group. All rights reserved. Mots cles: Plantes antifongiques, Piliostigma thonningii, Sclerotium rolfsii, Colletotrichum musae, Cote d’Ivoire English Title: Ethnobotanical study of antifungal plants traditionally used in ivory coast and the potential of Piliostigma Thonningii (schumach.) milne-redh. (fabaceae) in the control of telluric English Abstract In search of a means of fight against pathogens, an ethnobotanical survey was carried out in Tagbana villages (Katiola Department, Ivory Coast), of which, 102 traditherapists including 67 women and 35 men, use 29 species of plants for their antifungal effect. The family Euphorbiaceae with 5 species, 17.85% is the most represented. Piliostigma thonningii with a citation rate of 24.24%, appears as the most requested species. Phytochemical screening on the aqueous and ethanolic extracts of Piliostigma thonningii leaves revealed the presence of tannins, flavonoids, saponins, sterols, alkaloids and terpenes. The antifungal potential of the aqueous and ethanolic 70% extracts was evaluated by the double dilution method in Potato, Dextrose, Agar medium. The results showed that only the 70% hydroethanolic extract of Piliostigma thonningii leaves had antifungal properties on both Colletotrichum musae (minimum inhibitory concentration is 12.5 mg/ml and minimum fungicide concentration is 50 mg/ml) and Sclerotium rolfsii (minimum inhibitory concentration is 12.5 mg/ml and minimum fungicide concentration is 50 mg/ml). This study highlights the therapeutic power of medicinal plants and the active ingredients they contain. It could be of great help in agronomy, in the fight against phytopathogenic fungi. © 2020 International Formulae Group. All rights reserved. Keywords: Antifungal plants, Piliostigma thonningii, Sclerotium rolfsii, Colletotrichum musae, Ivory Coast

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