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KMID : 0379120120400010044
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Korean Journal of Mycology
2012 Volume.40 No. 1 p.44 ~ p.48
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Screening of Antagonistic Bacteria for Biological Control of Ginseng Root Rot
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Kim Young-Sook
Lee Myeong-Seok
Yeom Ji-Hee
Song Ja-Gyeong
Lee In-Kyoung
Yeo Woon-Hyung
Yun Bong-Sik
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Abstract
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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.
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KEYWORD
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Antifungal activity, Biological control, Ginseng root rot, Streptomyces sp.
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