@article{Vaillant-Flores_Gómez-Peralta_Romeu-Carballo_Ramírez-Ochoa_Porras-González_2015, title={Antifungal activity of extracts from three species of lichens in Cuba.}, volume={26}, url={https://revistas.ucr.ac.cr/index.php/agromeso/article/view/19328}, DOI={10.15517/am.v26i2.19328}, abstractNote={<p>The objective of this work was to evaluate the antifungal activity of the three lichens extracts. Extracts from <em>Leptogium cyanescens</em>, <em>Physcia americana </em>and <em>Pyxine aff. cocoes </em>were collected from the lichens thallus in 2009 in areas fromo the Cienfuegos Botanic Garden, Cuba. The fungicide activity was evaluated against phytopathogens fungi of potato: <em>Rhizoctonia solani </em>and <em>Phytophthora nicotianae var parasitica</em>. The study was conducted from 2009 to 2011. The compounds were extracted with acetone, concentrated by rotoevaporation, and evaluated at concentrations of 0,01 and 0,07% in potato dextrose agar (PDA) culture medium; stock solution was made of 5% dimethilsufoxide. These extracts were classified by their toxicity as: toxic, slight and moderately toxic and harmless. The extracts from <em>P. americana </em>of 0,07% inhibited <em>P. nicotianae </em>100%, and it showed values over 50% for <em>R. solani</em>. <em>L. cyanescens </em>only showed fungicide activity in both phytopathogens at the maximum concentration studied; similar results were obtained with the extract from <em>P. aff. cocoes</em>. The lichens extracts were classified as lightly toxic at the maximum concentration, and harmless at the minimum concentration.</p>}, number={2}, journal={Agronomía Mesoamericana}, author={Vaillant-Flores, Daymara Idonay and Gómez-Peralta, Marlene and Romeu-Carballo, Carlos Rafael and Ramírez-Ochoa, Rebeca and Porras-González, Angela}, year={2015}, month={Jun.}, pages={345–350} }