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AUXIN. (a). (b). Mutations ( cad, pad, rax ). BSO. Endogenous SLs. GR24 (Exogenous SL). MAX2. ↓Glutathione pool. MAX2. ↑ Glutathione pool. No changes in LATERAL ROOT DENSITY. Lower LATERAL ROOT DENSITY. LATERAL ROOT. (c). (d). NAA. NAA+ GR24. max3-9 max4-1. Col-0. max2-1.
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AUXIN (a) (b) Mutations (cad, pad, rax) BSO Endogenous SLs GR24 (Exogenous SL) MAX2 ↓Glutathione pool MAX2 ↑ Glutathione pool No changes in LATERAL ROOT DENSITY Lower LATERAL ROOT DENSITY LATERAL ROOT (c) (d) NAA NAA+ GR24 max3-9 max4-1 Col-0 max2-1 Col-0, max3-9, max4-1 max2-1 5.7 LRD fold change compared with untreated plants LRD fold change compared with untreated plants 4.3-4.9 3.4-3.5 3.5 2.8 + Lateral root density - + Lateral root density -