Relative Free Lys Levels in Wild-Type and Different Transgenic Arabidopsis Plants.
Relative levels of free Lys are given as mol % of total amino acids. DHPS/Ht and DHPS/Hm, transgenic plants expressing the phaseolin-DHPS construct in heterozygous and homozygous states, respectively; K/O, LKR/SDH knockout mutants; K/O × DHPS, LKR/SDH knockout × phaseolin-DHPS plants. Error bars represent standard errors.