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Fig. S1 Typical 4-wk-old Arabidopsis thaliana accession Col-0.

Fig. S2 Effect of nitric oxide (NO) on the yield of shoot biomass of Arabidopsis thaliana accession C24.

Table S1 List of primers used for quantitative real-time PCR

Table S2 Shoot biomass, total leaf area, and contents of carbon (C), nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), and sulfur (S) in 5-wk-old Arabidopsis thaliana C24 plants grown with (+NO2-treated plants) or without (−NO2 control plants) NO2 treatment

Table S3 Numerical data of leaf areas, sizes, and total numbers of palisade cells in the subepidermal layer of individual rosette leaves of +NO2-treated and −NO2 control Arabidopsis plants