Young-Sook Kim, Myeong-Seok Lee, Ji-Hee Yeom, Ja-Gyeong Song, In-Kyoung Lee, Woon-Hyung Yeo 1 and Bong-Sik Yun*
Division of Biotechnology, Chonbuk National University
1Technology Research Center, KT&G R&D Headquarters
Correspondence to bsyun@jbnu.ac.kr
Korean Journal of Mycology (Kor J Mycol) April 1, 2012, 40(1):44-48.
https://doi.org/10.4489/KJM.2012.40.1.044
(Received November 28, 2011. Revised January 12, 2012. Accepted January 26, 2012)
Published: April 1, 2012.
© The Korean Society of Mycology
Ginseng (Panax ginseng) is one of the most widely cultivated medicinal herb in Korea. However, yield losses reached up to 30~60 % due to various diseases during 3 or 5 years of ginseng cultivation. Therefore, successful production of ginseng roots depends primarily on the control of diseases. The objective of this study is to select potential multifunctional biocontrol agents from actinomycetes for the control of multiple ginseng diseases as an alternative to fungicides. Ninety three Streptomyces strains were selected and their ability to produce antibiotics, siderophore and lytic enzymes such as protease and cellulose were investigated. Eight of the isolates, strains A75, A501, 515, 523, A704, A1444, A3265 and A3283 produced cellulase and protease. These strains also produced siderophore and showed potent antifungal activity against Botrytis cinerea, Cylindrocarpon destructans, Collectotricum gloeosporioides, Phytophthora capsici and Rhizoctonia solani causing ginseng root rot.
Antifungal activity, Biological control, Ginseng root rot, Streptomyces sp.