Five most up-regulated and down-regulated proteins in drought-stressed maize plants of 2023 and CE704 genotypes, as revealed by the iTRAQ analysis.

The number in the column “CE704”, resp. “2023”, represents the n-fold increase or decrease in the protein content after 6 days of drought, derived from the ratio SCE704/CCE704 (resp. S2023/C2023) in case of the increased protein content and from the formula: –1/(SCE704/CCE704) (resp. –1/[S2023/C2023]) in case of the decreased protein content. ETC = electron transport chain; ZM = Zea mays L.