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http://dx.doi.org/10.5660/WTS.2013.2.2.202

Antibiotic Properties of Helicosporium sp. KCTC 0635BP to Rhizoctonia solani AG2-2 IV  

Lee, Sang Myeong (Major of Applied Biology, School of Ecological Environment and Tourism, Kyungpook National University)
Kim, Dong Soo (Southern Forest Resources Research Center, Korea Forest Research Institute)
Lee, Kwang-Soo (Southern Forest Resources Research Center, Korea Forest Research Institute)
Lee, Chong-Kyu (Department of Forest Resources, Gyeongnam National University of Science and Technology)
Lee, Dong Woon (Major of Applied Biology, School of Ecological Environment and Tourism, Kyungpook National University)
Publication Information
Weed & Turfgrass Science / v.2, no.2, 2013 , pp. 202-206 More about this Journal
Abstract
Biocontrol potential of an isolate of Helicosporium spp. against Rhizoctonia solani, Fusarium oxysporium and Phytophthora drechsleri was evaluated in vitro and in vivo. A selected biocontrol agent designated as Helicosporium 0635BP strongly inhibited growth and lysed mycelium of Rhizoctonia solani and Fusarium oxysporium on PDA. Autoclaved culture filtrate of the agent also completely inhibited growth of the turfgrass large patch pathogen, R. solani AG2-2 IV at the concentration of 50 ml $L^{-1}$. The pathogen was killed when dipped under the 20% filtrate for four hours or 50% for one hr. In a field trial, plots applied with the crude or times diluted culture filtrate showed 100% control efficacy of the turfgrass large patch as a chemical applied for a comparison. Results indicated that Helicosporium 0635BP is a promising biocontrol agent on control of the turfgrass large patch disease and its culture filtrate contained unknown heat suitable antifungal substance (s). Further studies on mass production, purification and identification of the unknown compound (s) are in progress for practical use.
Keywords
Biocontrol; Helicosporium; Large patch; Turfgrass;
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Times Cited By KSCI : 4  (Citation Analysis)
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