Mycobiology

The Korean Society of Mycology (한국균학회)
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Application of Silver Nanoparticles for the Control of Colletotrichum Species In Vitro and Pepper Anthracnose Disease in Field

  • Lamsal, Kabir (Department of Applied Plant Sciences, Kangwon National University) ;
  • Kim, Sang-Woo (Department of Applied Plant Sciences, Kangwon National University) ;
  • Jung, Jin-Hee (Department of Applied Plant Sciences, Kangwon National University) ;
  • Kim, Yun-Seok (Department of Applied Plant Sciences, Kangwon National University) ;
  • Kim, Kyong-Su (Department of Applied Biology, College of Agriculture and Life Sciences, Kangwon National University) ;
  • Lee, Youn-Su (Department of Applied Plant Sciences, Kangwon National University)
  • Received : 2011.08.12
  • Accepted : 2011.08.16
  • Published : 2011.09.30
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Abstract

Pepper anthracnose caused by Colletotrichum species is one of the most important limiting factors for pepper production in Korea, its management being strongly dependent on chemicals. The aim of this work was to evaluate the possibilities of using silver nanoparticles instead of commercial fungicides. In this study, we evaluated the effect of silver nanoparticles against pepper anthracnose under different culture conditions. Silver nanoparticles (WA-PR-WB13R) were applied at various concentrations to determine antifungal activities in vitro and in the field. The application of 100 ppm concentration of silver nanoparticles produced maximum inhibition of the growth of fungal hyphae as well as conidial germination in comparison to the control in vitro. In field trials, the inhibition of fungi was significantly high when silver nanoparticles were applied before disease outbreak on the plants. Scanning electron microscopy results indicated that the silver nanoparticles caused a detrimental effect on mycelial growth of Colletotrichum species.

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References

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