Figure 7.

Effects of MDT and bzip60-2 on Chlorophyll Indices in Maize Leaves.

(A) Chlorophyll indices for the first fully expanded leaves on individual W22 and bzip60-2 plants recorded over a period of 10 d at 37°C MDT. C7P2, C7P4, and C3P12 are individual plants homozygous for bzip60-2. C7P5, C7P11, and C3P4 are individual W22 plants. Chlorophyll indices were determined from hyperspectral images taken robotically at the same virtual time of day for all plants. Different letters indicate significant differences between comparisons (P < 0.05, one-way ANOVA, for individual plants grown under the same conditions). The means of three readings per leaf are shown and the error bars represent SEMs.

(B) Box plots for the expression levels of various genes encoding chloroplast-targeted proteins in W22 and bzip60-2 at various MDTs. Roles of the genes shown here are represented in the chlorophyll metabolism pathway in Supplemental Figure 13. See legend in Figure 2F for an explanation of box-plot features.