Inhibitory effect of moriniafungin produced by setosphaeria rostrata f3736 on the development of rhizopus rot

Min Young Park, So Jung Park, Jae Jin Kim, Dong Ho Lee, Beom Seok Kim

Research output: Contribution to journalArticlepeer-review

Abstract

Rhizopus rot is a serious postharvest disease of various crops caused by Rhizopus spp. and controlled mainly by synthetic fungicides. We detected the antifungal activity of a culture extract of Setosphaeria rostrata F3736 against Rhizopus oryzae. The active ingredient was identified as moriniafungin, a known sordarin deriva-tive, which showed minimum inhibitory concentrations of 1-8 μg/ml against Colletotrichum spp. and 0.03-0.13 μg/ml against Rhizopus spp. in vitro. Moriniafungin showed protective control efficacies against Rhizopus rot on apple and peach fruits. Treatment with 25 μg/ ml moriniafungin delimited the lesion diameter significantly by 100% on R. oryzae-inoculated apple fruits compared with the non-treated control. Treatment with 0.04 μg/ml of moriniafungin reduced the lesion diameter significantly by 56.45%, and treatment with higher concentrations of 0.2-25 μg/ml reduced the lesion diameter by 70-90% on Rhizopus stolonifer var. stolonifer-inoculated peach fruit. These results suggest morinia-fungin has potential as a control agent of postharvest diseases caused by Rhizopus spp.

Original languageEnglish
Pages (from-to)570-578
Number of pages9
JournalPlant Pathology Journal
Volume36
Issue number6
DOIs
Publication statusPublished - 2020

Keywords

  • Fungal metabolite
  • Moriniafungin
  • Postharvest disease
  • Rhizopus rot
  • Setosphaeria rostrata

ASJC Scopus subject areas

  • Agronomy and Crop Science

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