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학술저널
저자정보
Lee, Dong Gu (Department of Integrative Plant Science, Chung-Ang University) Lee, Seong Jun (School of Ecology and Environmental System, Kyungpook National University) Rodriguez, Joyce P. (Department of Integrative Plant Science, Chung-Ang University) Kim, Ik Hwi (Natural Product R&D Institute, Elcubio Co., Ltd.) Chang, Taehyun (School of Ecology and Environmental System, Kyungpook National University) Lee, Sanghyun (Department of Integrative Plant Science, Chung-Ang University)
저널정보
한국응용생명화학회 Journal of applied biological chemistry Journal of applied biological chemistry 제60권 제3호
발행연도
2017.1
수록면
213 - 218 (6page)

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The objective was to examine the antifungal activity of Pinus densiflora extract for the control of turfgrass fungal diseases. Antifungal activities of the various fractions of n-hexane, methylene chloride (Ch), ethyl acetate (EtOAc), and n-butanol from P. densiflora were evaluated against Rhizoctonia solani AG1-1B, R. solani AG2-2IV, Sclerotinia homoeocarpa, R. cerealis, Pythium spp., and Colletotrichum graminicola. The Ch and EtOAc fractions showed antifungal activity against Pythium sp. and C. graminicola in paper disc assay. The effective concentration to produce 50% mycelial inhibition ($EC_{50}$) using five discriminatory concentrations of pinosylvin (1) from the Ch fraction of P. densiflora was evaluated on R. solani AG1-1B, R. solani AG2-2IV, R. cerealis, and S. homoeocarpa. S. homoeocarpa showed the highest sensitivity with the lowest mean $EC_{50}$ value ($8.426{\mu}g/mL$) among the four pathogens. Among the three Rhizoctonia pathogens, R. cerealis had the highest mean $EC_{50}$ value ($99.832{\mu}g/mL$) and R. solani AG2-2IV, with the lowest sensitivity, had the lowest $EC_{50}$ value ($39.696{\mu}g/mL$). These results suggested that pinosylvin (1) from P. densiflora could be a valuable lead compound in the improvement of a novel antifungal agent.

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