PPK3 is involved in phosphorylation and ubiquination of RYR/PYLs, resulting in negative regulation of ABA response. Also acts in GA response pathway along with RGA1/CCA1.
NDHF is involved in the transfer of electrons from NAD(P)H: plastoquinone, via FMN and iron-sulfur centers, to quinones in the photosynthetic chain and possibly in a chloroplast respiratory chain.
FC2 is one of two ferrochelatase genes in Arabidopsis. Ferrochelatase is the terminal enzyme of heme biosynthesis. FC-II is speculated to operate in photosynthetic cytochromes.
GOX1/2 are glycolate oxidases that modulate reactive oxygen species- mediated signal transduction during nonhost resistance. The mRNA is cell-to- cell mobile.