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http://dx.doi.org/10.4489/KJM.2013.41.4.274

Fungicidal Effect of Slightly Acidic Hypochlorous Water against Phytopathogenic Fungi  

Song, Jeong Young (Dept. of Applied Biology, Chungnam National University)
Kim, Narae (Dept. of Applied Biology, Chungnam National University)
Nam, Myeong Hyeon (Nonsan Strawberry Experiment Station, Chungnam ARES)
Park, BeomJin (CosmicRound Korea Co. Ltd.)
Whang, Eui-Il (KT&G R&D Headquarters Technology Research Center)
Choi, Jong Myung (Dept. of Horticultural Science, Chungnam National University)
Kim, Hong Gi (Dept. of Applied Biology, Chungnam National University)
Publication Information
The Korean Journal of Mycology / v.41, no.4, 2013 , pp. 274-279 More about this Journal
Abstract
Slightly acidic hypochlorous water (SAHW) is well known for having a powerful and broad spectrum antimicrobial activity, and is harmless to the environment and humans. SAHW (pH 5~6.5, 20~30 ppm available chlorine concentration) was generated by electrolysis of dilute solution of HCl (4%) in a chamber of a non-membrane electrolytic cell. Our objective was to determine SAHW has a potential fungicidal activity on some phytopathogenic fungi. Spores of Botrytis cinerea, Colletotrichum acutatum and Phytophthora capsici were not culturable on agar media at approximately 10 seconds after treatment by SAHW. However, inactivation of Penicillium hirsutum was required over 3 min. Dilution of SAHW with sterilized distilled water (SDW) at the ratio of 1:1 (SAHW:SDW) against C. acutatum showed 100% inactivation but, the efficacy in 1:2 decreased until 63.2%. Control value of SAHW was 70.4% against C. acutatum on pepper fruits when applied upto 24 h postinoculation. SAHW has a powerful and wide spectrum antifungal activity and could be applied as a potential alternative to fungicidal agent for control of plant disease.
Keywords
Control; Fungicidal agent; Phytopathogenic fungi; Slightly acidic hypochlorous water (SAHW);
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