Figure 4
From: Ornithine-δ-aminotransferase is essential for Arginine Catabolism but not for Proline Biosynthesis
oat mutants are unable to use Arg or Orn as nitrogen source. Col-0 wildtype, oat1 and oat3 were cultivated on MS medium lacking mineral nitrogen but supplemented with 30 mM sucrose and the indicated concentrations of organic nitrogen sources. Plates without nitrogen, with 5 mM Arg or 10 mM urea were photographed after 4 weeks, the picture of the plate with 10 mM Orn was taken after 6 weeks of growth.