Antifungal Substances from Streptomyces sp. A3265 Antagonistic to Plant Pathogenic Fungi.
10.5941/MYCO.2015.43.3.333
- Author:
Nguyen VAN MINH
1
;
E Eum WOO
;
Ji Yul KIM
;
Dae Won KIM
;
Byung Soon HWANG
;
Yoon Ju LEE
;
In Kyoung LEE
;
Bong Sik YUN
Author Information
1. Division of Biotechnology and Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan 54596, Korea. bsyun@jbnu.ac.kr
- Publication Type:Brief Communication
- Keywords:
Biocontrol agent;
Damping-off;
Guanidylfungin;
Streptomyces sp. A3265
- MeSH:
Bacteria;
Botrytis;
Chromatography;
Chromatography, Liquid;
Colletotrichum;
Fungi*;
Panax;
Plants*;
Rhizoctonia;
Streptomyces*
- From:Mycobiology
2015;43(3):333-338
- CountryRepublic of Korea
- Language:English
-
Abstract:
In a previous study, we identified a Streptomyces sp., A3265, as exhibiting potent antifungal activity against various plant pathogenic fungi, including Botrytis cinerea, Colletotrichum gloeosporioides, and Rhizoctonia solani. This strain also exhibited a biocontrolling effect against ginseng root rot and damping-off disease, common diseases of ginseng and other crops. In this study, we isolated two antifungal substances responsible for this biocontrolling effect via Diaion HP-20 and Sephadex LH-20 column chromatography, medium pressure liquid chromatography, and high-performance liquid chromatography. These compounds were identified as guanidylfungin A and methyl guanidylfungin A by spectroscopic methods. These compounds exhibited potent antimicrobial activity against various plant pathogenic fungi as well as against bacteria.
