Plant development puzzle

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Across
  1. 3. GRAS-family TF required for quiescent-centre specification
  2. 4. Master plant hormone
  3. 7. Initiation of successive organs around the shoot apex
  4. 8. E-class floral regulator
  5. 10. TF moves from the stele & activates SCR
  6. 11. expressed in the shoot meristem that promotes and maintains stem-cell identity
  7. 12. Centre "Quiet" heart of root cells
  8. 13. Auxin Transporters
  9. 14. Root-derived peptide signal
  10. 15. A-class floral regulator
  11. 17. Arrangement of xylem characteristic of stems
  12. 18. Root meristem regulator
Down
  1. 1. signalling peptide that provides an inhibitory signal limiting stem-cell accumulation in SAM
  2. 2. Soft living brick in ground tissue
  3. 5. rimary meristem that forms vascular tissues
  4. 6. The outermost primary meristem
  5. 7. Young developing organ initiated from specified founder cells at the SAM
  6. 9. B-class floral regulator
  7. 16. C-class floral regulator