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. 2016 May 31;113(24):6791–6796. doi: 10.1073/pnas.1601954113

Fig. S2.

Fig. S2.

Intrinsic water use efficiencies of Arabidopsis RCAR lines. (A and B) Δ13C-based iWUE of bulk above-ground biomass and (C) of extracted cellulose fractions from the experiment shown in Fig. 3D for RCAR lines (R1–R14) relative to Col-0 exposed to drought (Col d, iWUE = 80 μmol⋅mol−1 in C).The value for wild-type Col-0 grown under well-watered conditions (Ψ > −0.03 bar) is shown as additional reference (gray column, Col w). (B) Correlation of gravimetrically determined WUE and Δ13C-based iWUE (R = 0.92, P < 0.001). (D) Correlation of differences in iWUE of RCAR lines in relation to wild type (filled black circle) from bulk above-ground biomass and extracted cellulose fractions (R = 0.96, P < 0.001). Symbols denote the RCAR lines and wild type as in Fig. 3D. n = 4 biological replicates per data point, mean ± SEM, **P < 0.001 compared with wild type.