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http://dx.doi.org/10.5423/RPD.2012.18.1.017

Control Effects of Indole Isolated from Xenorhabdus nematophila K1 on the Diseases of Red Pepper  

Jeon, Mi-Hyeon (School of Bioresource Sciences, Andong National University)
Cheon, Won-Su (School of Bioresource Sciences, Andong National University)
Kim, Yong-Gyun (School of Bioresource Sciences, Andong National University)
Hong, Yong-Pyo (Department of Applied Chemistry, Andong National University)
Yi, Young-Keun (School of Bioresource Sciences, Andong National University)
Publication Information
Research in Plant Disease / v.18, no.1, 2012 , pp. 17-23 More about this Journal
Abstract
Indole compound is a bacterial metabolite synthesized and released by an entomopathogenic bacterium, Xenorhabdus nematophila K1. The antibiotic activity was evaluated against plant pathogens, such as Phytophthora blight and anthracnose of red pepper. Indole significantly suppressed mycelial growth of Phytophthora blight and anthracnose pathogens. Under natural sunlight conditions, indole maintained the antifungal activity for at least sixty days. The activity was not affected under the condition of soil-water. When the indole suspension was applied to surface soil before transplanting of red pepper seedlings and was then regularly sprayed to the foliage of the plants with ten days interval, it resulted in significant reduction of the disease occurrences (Phytophthora blight, anthracnose, soft rot, and black mold) by about 30%. These results suggest that indole can be used to control Phytophthora blight and anthracnose of red pepper.
Keywords
Indole; Control effect; Diseases; Red pepper;
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Times Cited By KSCI : 4  (Citation Analysis)
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