Melanoidins Suppress Cucumber and Tomato Diseases Incited by Pathogens that are Oomycetes, Bacteria and a Virus

Melanoidins formed during the Maillard reaction suppress multiple cucumber and tomato diseases, including 0.03–0.1% control of oomycete, bacterial, and ToBRFV infections.

• Why it matters: Plant resistance inducers are needed to manage diverse pathogens across soilborne, foliar, and viral diseases, especially when mechanisms like salicylic-acid signaling are targeted.
• What they did: Cucumber and tomato plants were drenched or sprayed with melanoidins, then challenged with Pythium aphanidermatum, Pseudoperonospera cubensis, Phytophthora infestans, Pseudomonas syringae pv. tomato, Clavibacter michiganensis subsp. michiganensis, and Tomato brown rugose fruit virus.
• The result: Melanoidins promoted immunity via transcriptome changes, primarily through the salicylic acid pathway, and suppressed these diseases even with applications lasting about 11 weeks.

AI summary of the abstract · may contain errors · not medical advice · read the paper.