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http://dx.doi.org/10.5423/PPJ.2008.24.2.202

Antifungal Activity of Lichen-forming Fungi against Colletotrichum acutatum on Hot Pepper  

Wei, Xinli (Korean Lichen Research Institute, Sunchon National University)
Jeon, Hae-Sook (Korean Lichen Research Institute, Sunchon National University)
Han, Keon-Seon (Korean Lichen Research Institute, Sunchon National University)
Koh, Young-Jin (Korean Lichen Research Institute, Sunchon National University)
Hur, Jae-Seoun (Korean Lichen Research Institute, Sunchon National University)
Publication Information
The Plant Pathology Journal / v.24, no.2, 2008 , pp. 202-206 More about this Journal
Abstract
Antifungal activity of Korean and Chinese lichen-forming fungi (LFF) was evaluated against plant pathogenic fungus of Colletotrichum acutatum, causal agent of anthracnose on hot pepper. This is the first attempt to evaluate antifungal activity of LFF, instead of lichen thalli, against C. acutatum. Total 100 LFF were isolated from the lichens with discharged spore method or tissue culture method. Among the 100 isolates, 8 LFF showed more than 50% of inhibition rates of mycelial growth of the target pathogen. Especially, Lecanora argentata was highly effective in inhibition of mycelial growth of C. accutatum at the rate of 68%. Antifungal activity of other LFF was in the order of Cetrelia japonica (61.4%), Ramalina conduplicans (59.5%), Umbilicaria esculenta (59.5%), Ramalina litoralis (56.7%), Cetrelia braunsiana (56.5%), Nephromopsis pallescensn (56.1%), and Parmelia simplicior (53.8%). Among the tested LFF, 61 isolates of LFF exhibited moderate antifungal activity against the target pathogen at the inhibition rates from 30 to 50%. Antifungal activity of the LFF against C. acutatum was variable at the species level rather than genus level of LFF. This study suggests that LFF can be served as a promising bioresource to develop novel biofungicides.
Keywords
biofungicide; fungal growth inhibition; lichen-forming fungi; novel bioresource; plant pathogenic fungus;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
Times Cited By Web Of Science : 9  (Related Records In Web of Science)
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