4.5 Article

The Cyclic Organosulfur Compound Zwiebelane A from Onion (Allium cepa) Functions as an Enhancer of Polymyxin B in Fungal Vacuole Disruption

Journal

PLANTA MEDICA
Volume 76, Issue 16, Pages 1864-1866

Publisher

GEORG THIEME VERLAG KG
DOI: 10.1055/s-0030-1249935

Keywords

Allium cepa; Alliaceae; zwiebelane A; polymyxin B; Saccharomyces cerevisiae

Funding

  1. Japan Society for the Promotion of Science [20580083]
  2. Grants-in-Aid for Scientific Research [20580083] Funding Source: KAKEN

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Zwiebelane A (cis-2,3-dimethyl-5,6-dithiabicyclo[2.1.1]hexane 5-oxide), a natural product of onion bulbs (Allium cepa L.), is found to enhance the potential fungicidal activity of polymyxin B (PMB). As is the case with allicin, an allyl sulfur compound from garlic, zwiebelane A amplifies the disruptive effect of PMB on the vacuole of Saccharomyces cerevisiae, which has been found to represent a target for antifungal agents.

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