Journal of Microbial & Biochemical Technology

Nefzi Ahlem

Publications

• Research Article
  Control of Fusarium Dry Rot Incited by Fusarium oxysporum f. sp. tuberosi Using Sargassum vulgare Aqueous and Organic Extracts
  Author(s): Ammar Nawaim, Nefzi Ahlem, Jabnoun-Khiareddine Hayfa and Daami-Remadi MejdaAmmar Nawaim, Nefzi Ahlem, Jabnoun-Khiareddine Hayfa and Daami-Remadi Mejda
  
  Aqueous and organic extracts of Sargassum vulgare, removed from four Tunisian coastal sites, were evaluated for their antifungal potential against the soilborne fungus Fusarium oxysporum f. sp. tuberosi, one of the main causal agents of potato Fusarium dry rot in Tunisia. Assessed using the poisoned food technique on Potato Dextrose Agar, the antifungal activity of S. vulgare extracts varied depending on extract types (aqueous/organic), alga sampling sites (Tunis, Monastir, Mahdia1 and Mahdia2) and concentrations used (1-100 mg/ml). Mycelial growth inhibition, noted after 4 days of incubation at 25°C, reached 28.99% using S. vulgare aqueous extract at 100 mg/mL. Up to 43% growth inhibition was achieved using 50-100 mg/ml of petroleum ether extract of S. vulgare removed from Tunis and Mahdia2, and up to 50% with those from Mahdi.. View More»
  DOI: 10.4172/1948-5948.1000366

  Abstract PDF