Evaluation of Bacteria Isolated from Olive Mill Wastewater as Plant Growth Promoter on Basil (Ocimum basilicum L.) plant

The aim of this study was evaluate Enterobacter asburiae as plant growth promoter, through a field experiment conducted at Baloza Research Station at Season 2017/2018 on the production of Basil (Ocimum basilicum L., Family: Lamiaceae). The results showed increasing in growth parameters and essential oil yield by Ent. asburiae treatment and Ent. asburiae + half dose of N2 treatment than the control. Ent. asburiae produced phytohormones and amino acids which increased plant growth parameters. The enhanced essential oil has antibacterial activity which showed as a zone of inhibition around bacterial growth on agar plates. Enterobacter asburiae produced ammonia which decreased fungi counts. The more positive response of the oils extracted of treated plant showed essential the presence of gram negative strains (Pseudomonas sp.) and gram positive strains (Listeria sp. and Bacillus cereus) by using Enterobacter asburiae treatment.