Antifungal Activity of Valinomycin, a Cyclodepsipeptide from Streptomyces padanus TH-04

  • Lim, Tae-Heon (Regional Innovation Center, Sangju University) ;
  • Oh, Hyun-Cheol (MCBI & College of Natural Sciences, Silla University) ;
  • Kwon, Soon-Youl (Regional Innovation Center, Sangju University) ;
  • Kim, Jin-Ho (Regional Innovation Center, Sangju University) ;
  • Seo, Hyo-Won (College of Pharmacy, Catholic University of Daegu) ;
  • Lee, Jeong-Hun (College of Pharmacy, Catholic University of Daegu) ;
  • Kim, Jin-Cheol (Korea Research Institute of Chemical Technology) ;
  • Lim, Chi-Hwan (Department of Bio Environmental Chemistry, Chungnam National University) ;
  • Cha, Byeong-Jin (Department of Plant Medicine, Chungbuk National University) ;
  • Min, Byung-Sun (College of Pharmacy, Catholic University of Daegu)
  • Published : 2007.06.30

Abstract

Using antifungal activity-guided fractionation, an actinomycete, Streptomyces padanus strain TH-04, which was isolated from mummified peaches infected with Monilinia fructicola, was found to produce the valinomycin (1). The structure of 1 was established using spectroscopic data, which including one- and two-dimensional NMR experimental and mass spectroscopy. Valinomycin (1) showed antifungal activity against Phytophthora capsici, with an IC$_{50}$ value of 15.9 ${\mu}$g/mL.

Keywords

References

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