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http://dx.doi.org/10.3839/jabc.2009.020

Development of the Microbial Consortium for the Environmental Friendly Agriculture by the Antagonistic Rhizobacteria  

Lim, Jong-Hui (Department of Applied Microbiology, College of Natural Resource, Yeungnam University)
Jung, Hee-Young (Department of Applied Microbiology, College of Natural Resource, Yeungnam University)
Kim, Sang-Dal (Department of Applied Microbiology, College of Natural Resource, Yeungnam University)
Publication Information
Journal of Applied Biological Chemistry / v.52, no.3, 2009 , pp. 116-120 More about this Journal
Abstract
We found out the new method of the consortium for the environmental friendly agriculture by 8 kinds of the selected antagonistic rhizobacteria. This research involved composition of mutual complementary consortium by each antagonistic function such as production of antibiotic, siderophore, antifungal cellulase and insoluble phosphate solubilization. The consortium No.11 among composed consortium candidates showed the most pepper growth promoting activity and Phytophthora blight suppression on the in vivo pot test of red-pepper plant. The consortium No. 11 is combination of PGPR Bacillus subtilis AH18 and Bacillus licheniformis K11. B. subtilis AH18 and B. licheniformis K11 both could produce the auxin, antifungal ${\beta}$-glucannase and siderophore. Also, they had mechanism for solubilization of insoluble phosphate. But, B. licheniformis K11 could produce the antibiotic of iturin which was able to inhibit Phytophthora capsici. We confirmed complementary noncompetitive mutualism between B. subtilis AH18 and B. licheniformis K11 of the consortium No.11. The results came out through treatment of two strains co-culture, treatment of individual culture and co-treatment of two individual cultures for the growth and Phytophthora blight suppression of red-pepper. The treatment of two strains co-culture didn't show a synergic effect in comparing sole treatment on the pepper growth promotion and Phytophthora blight suppression. But, when the pots were treated simultaneously with co-treatment of two individual cultures, an synergic effect was seen in the growth promotion of roots, stem, leaves and suppressed Phytophthora blight on red-pepper in vivo pot test.
Keywords
microbial consortium; PGPR; Phytophthora blight;
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Times Cited By KSCI : 3  (Citation Analysis)
Times Cited By SCOPUS : 4
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