title: RNA sequencing-based transcriptome analysis from Olea europaea subsp. europaea fruits inoculated by Phytophthora oleae or pre-treated with BCA
organism: Olea europaea subsp. europaea
description: Phytophthora oleae is a pathogen recently reported to cause fruit rot on olive orchards in Italy and root rot in a natural wild-olive forest in Spain. RNAseq analysis was conducted to gain insight into the molecular mechanisms that trigger a plant defense response upon the inoculation of drupes with P. oleae and the pre-treatment with the antagonistic yeast Candida oleophila or with culture filtrates of the antagonistic filamentous fungus Trichoderma atroviride. Both treatments were applied to the olive drupe 24 h before the inoculation with the pathogen. Although no full resistance was observed, the virulence of P. oleae was reduced when the drupes were co-inoculated with the yeast or treated with culture filtrates of Trichoderma. The most effective in reducing the disease severity of P. oleae infection on olive fruit was the treatment with T. atroviride filtrate (56% reduction), followed by C. oleophila (52%).