Figure 1.
Crossover Analysis of Guard Cell-Enriched Transcripts.
(A) ABA and dry air-responsive genes. Microarray data were filtered sequentially. Stomatal movement-deficient mutants (slac1-5, ost1-2) versus wild-type (wt) guard cells revealed about 100 differentially regulated genes each. Among them, 72 (slac1-5) or 35 (ost1-2) were expressed at least twofold higher in guard cells than in leaves. After filtering for genes differentially regulated by both ABA and dry air, five genes (slac1-5) and eight genes (ost1-2) remained.