Journal of Plant Pathology & Microbiology

Rania Aydi Ben Abdallah

Publications

• Commentary
  Endophytic Bacillus spp. from Wild Solanaceae and Their Antifungal Potential against Fusarium oxysporum f. sp. lycopersici Elucidated Using Whole Cells, Filtrate Cultures and Organic Extracts
  Author(s): Rania Aydi Ben Abdallah, Hayfa Jabnoun- Khiareddine, Sonia Mokni- Tlili, Ahlem Nefzi, Sined Medimagh- Saidana and Mejda Daami- Remadi Rania Aydi Ben Abdallah, Hayfa Jabnoun- Khiareddine, Sonia Mokni- Tlili, Ahlem Nefzi, Sined Medimagh- Saidana and Mejda Daami- Remadi
  
  Six isolates of culturable bacteria, isolated from stems of wild Solanaceae species (Datura metel, Solanum nigrum, S. elaeagnifolium, and Nicotiana glauca), were assessed for their antifungal activity against F. oxysporum f. sp. lycopersici (FOL), the causal agent of the tomato Fusarium wilt. Blast analysis of 16S rDNA sequencing genes homology showed that the isolates belonged to the genus Bacillus (Bacillus cereus str. S42, B. tequilensis str. SV39, B. subtilis str. SV41, B. methylotrophicus str. SV44, B. amyloliquefaciens subsp. plantarum str. SV65, and B. mojavensis str. SV104). The mycelium growth of FOL was significantly reduced by 36 to 46% by diffusible metabolites and by 18 to 21% by volatile compounds. Cell-free cultures were found to be mostly active when issued from 4 days-old cultures where FOL growth inhibition significantly varied from .. View More»
  DOI: 10.4172/2157-7471.1000324

  Abstract PDF