ID 1.13.11.69 DE carlactone synthase. CA 9-cis-10'-apo-beta-carotenal + 2 O2 = (2E,4E,6E)-7-hydroxy-4-methylhepta- CA 2,4,6-trienal + (11R)-carlactone. CC -!- The enzyme participates in a pathway leading to biosynthesis of CC strigolactones, plant hormones involved in promotion of symbiotic CC associations known as arbuscular mycorrhiza. CC -!- Also catalyzes EC 1.13.11.70, but 10-fold slower. DR Q8LIY8, CCD8B_ORYSJ; Q8VY26, CCD8_ARATH ; //