Characterization of a rare sugar against Phytophthora spp.


Abstract: Phytophthora spp. are one of the most aggressive and widespread plant pathogens responsible for important crop losses and it is controlled by fungicides. However, the overuse of chemical fungicides is a threat to human health and the environment. Eco-friendly fungicides are needed to improve sustainable plant protection strategies. The aim of this study was to assess the efficacy and to understand the mode of action of a rare sugar (tagatose) against Phytophthora infestans and Phytophthora cinnamomi. Tagatose inhibited P. infestans growth, but not P. cinnamomi growth, and it altered respiration-related activities. We demonstrated that tagatose is a promising compound that could be used as innovative biopesticide for the control of P. infestans.

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