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Babiah, P.S./ Upreti, D.K./ John, S.A. 2015: Assessment of fungicidal potential of lichen Heterodermia leucomelos (L.) Poelt against pathogenic fungi. - Current Research in Environmental & Applied Mycology 5(2): 92-100. [RLL List # 245 / Rec.# 38566]
Abstract: The present investigation focuses on the evaluation of fungicidal potential of a foliose lichen Heterodermia leucomelos (L.) Poelt against five strains of phytopathogenic fungi. Acetone, methanol and chloroform extracts of test lichen were screened against pathogens Aspergillus niger, Aspergillus flavus, Fusarium oxysporum, Fusarium solani, Colletotrichum falcatum by the Disc – Diffusion Assay. MIC values of the extracts were determined by Broth tube dilution method. Among the three solvents acetone and methanol exhibited highest activities. Mean diameter of zones of inhibition for acetone and methanol extracts ranged from 18.0±0.0 to 28.6±0.3 mg/ml and 12.3±0.6 to 24.6±1.2 mg/ml. respectively with MIC values ranging from 0.19 to 1.56 mg/ml. Tukey’s multiple comparison test provides significant differences (at p<0.05 and 0.01) in the activity of the extracts towards different phytopathogens. The results proved that the lichen holds high medicinal properties and can be a rich source of potential natural antimicrobial agents.
URL: http://www.creamjournal.org/pdf/Cream_5_2_3.pdf
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