Chemical composition of the essential oil from Algerian Genista quadriflora Munby and determination of its antibacterial and antifungal activities

•222 constituents were identified in G. quadriflora essential oil by GC/FID and GC/MS.•Muurolan-4,7-peroxide, amorpha-4,9-dien-2-ol, and lauric acid were the major compounds.•Gram-positive were less resistant to the essential oil in contrast with Gram-negative bacteria ones.•We assessed antifungal activity of oil against Fusarium oxysprum.