Figure 5.

Analysis of Rubisco protein content, activation and enzyme carboxylation activities of 5‐week‐old plants after 2 weeks of chilling stress. (a) Rubisco content measured by ¹⁴C‐CABP binding, (b) Rubisco activation status (initial Rubisco activity/total Rubisco activity*100), (c) Rubisco (d) and PEPC activities measured using NADH‐linked spectrophotometer assays. Values are shown as the mean ± standard error. Measurements were made on 3–12 plants per genotype. Different lowercase letters indicate significant differences (P < 0.05), one‐way ANOVA Tukey HSD.