Transcriptomic changes in green bean pods against grey mould and white rot diseases via field application of chemical elicitor nanoparticles.

The authors tested the efficacy of two salt nanoparticles (NPs), namely, copper dioxide (CuO) and tri-calcium phosphate [Ca(PO)] to induce resistance in green bean pods against grey mould and white rot diseases caused by and , respectively. High amounts of phytoalexins, kievitone, coumestrol, phaseollidin, 6-ά-hydroxyphaseollin, and phaseollin, were detected in naturally infected and artificially inoculated green bean pods in response to the tested NPs. Green bean plants treated in the field with CuO and Ca(PO) NPs had the highest mRNA quantity of all the studied defence genes, receptor-like kinase (), pathogenesis-related protein (), 1,3-β-D-glucanase (), polygalacturonase inhibitor protein (), and alpha-dioxygenase () than that of the control group.