Antifungal compounds produced by Colletotrichum gloeosporioides, an endophytic fungus from Michelia champaca

Molecules. 2014 Nov 21;19(11):19243-52. doi: 10.3390/molecules191119243.

Abstract

In this study, eight endophytic fungi were isolated from the leaves, stems and roots of Michelia champaca. The isolates were screened and evaluated for their antifungal, anticancer and acetylcholinesterase (AChE) inhibitory activities. All of the extracts exhibited potent activity against two evaluated phytopathogenic fungi. Chemical investigation of EtOAc extracts of the endophytic fungus Colletotrichum gloeosporioides resulted in the isolation of one new compound, 2-phenylethyl 1H-indol-3-yl-acetate (1), and seven known compounds: uracil (2), cyclo-(S*-Pro-S*-Tyr) (3), cyclo-(S*-Pro-S*-Val) (4), 2(2-aminophenyl)acetic acid (5), 2(4-hydroxyphenyl)acetic acid (6), 4-hydroxy- benzamide (7) and 2(2-hydroxyphenyl)acetic acid (8). All of the compound structures were elucidated using 1D and 2D NMR and MS analyses. The antifungal and AChE inhibitory activities of compounds 1-8 were evaluated in vitro. Compound 1 exhibited promising activity against Cladosporium cladosporioides and C. sphaerospermum that was comparable to that of the positive control nystatin.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antifungal Agents / chemistry*
  • Antifungal Agents / pharmacology*
  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / pharmacology
  • Cholinesterase Inhibitors / chemistry
  • Cholinesterase Inhibitors / pharmacology
  • Cladosporium / drug effects
  • Colletotrichum / chemistry*
  • Fungi / drug effects*
  • Magnoliaceae / chemistry*
  • Microbial Sensitivity Tests / methods
  • Plant Extracts / chemistry*
  • Plant Extracts / pharmacology*
  • Plant Leaves / chemistry
  • Plant Roots / chemistry
  • Plant Stems / chemistry

Substances

  • Antifungal Agents
  • Antineoplastic Agents
  • Cholinesterase Inhibitors
  • Plant Extracts