BioControl (2004) 49, 95-107

Patrice Halama and Chantal Van Haluwin (2004)
Antifungal activity of lichen extracts and lichenic acids
BioControl 49 (1), 95-107
Abstract: Acetone extracts of the three lichen species Evernia prunastri, Hypogymnia physodes and Cladonia portentosa were investigated for activity against eight plant pathogenic fungi: Pythium ultimum, Phytophthora infestans, Rhizoctonia solani, Botrytis cinerea, Colletotrichum lindemuthianum, Fusarium solani, Stagonospora nodorum and Ustilago maydis. Particularly, E. prunastri and H. physodes exhibit total or strong inhibition on P. ultimum, U. maydis and P. infestans growth. In contrast, Cladonia extracts were less active to reduce growth of these fungi. Lichenic acids were also examined for antifungal activity. P. infestans growth was severely inhibited by evernic acid. P. ultimum and P. infestans growth were slightly but significantly inhibited by evernic acid and (-) usnic acid, respectively. Growth inhibition of U. maydis was also observed for the latter lichenic acid. These results confirm the previously observed activities of lichen extracts. This suggests that secondary lichen metabolites might be of potential use as antifungal agents.
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Link to article at publishers website
Database assignments for author(s): Patrice Halama

Research topic(s) for pests/diseases/weeds:
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Phytophthora infestans
	Parastagonospora nodorum
	Botrytis cinerea
	Rhizoctonia solani
	Neocosmospora solani
	Globisporangium ultimum
	Colletotrichum lindemuthianum
	Mycosarcoma maydis