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KMID : 0903519960390010020
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Journal of the Korean Society of Agricultural Chemistry and Biotechnology
1996 Volume.39 No. 1 p.20 ~ p.24
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Effect of Siderophore on Biological Control of Plant Pathogens and Promotion of Plant Growth by Pseudomonas fluorescens ps88
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Abstract
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Pseudomonas fluorescens ps88 was isolated from the rhizosphere soil produced the secondary metabolite called siderophore under iron Limited conditions. On iron limiting KMB medium this strain inhibited the growth of Pythium ultimum, Pyricularia oryzae, Rhizoctonia solani and Xanthomonas oryzae. Cucumber seeds were coated with the strain ps88 and were grown in green house soil. Forty days after the seed emergence, disease incidence caused by Fusarium oxysporium was reduced up to 50%. When the cucumber plants were grown in vermiculite, a significant fresh weight was increased. Root development of red pepper plants was also enhanced on MS medium supplemented with siderophore.
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