Biomass monitoring 3 DNA 3 DNA Primers 3 DNA purification 3 DNA, Plant 3 Late blight 3 Lycopersicon esculentum 3 Nicotiana benthamiana 3 Organic Chemicals 3 Phytophthora infestans 3 Plant Diseases 3 Plant Leaves 3 Plant Tubers 3 Polymerase Chain Reaction 3 Potato crop 3 Quantitative real-time PCR 3 Solanum tuberosum 3 Species Specificity 3 adaptation 3 article 3 bioassay 3 cultivar 3 disease resistance 3 fungal disease 3 fungus growth 3 growth rate 3 host plant 3 host-pathogen interaction 3 monitoring 3 monitoring system 3