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  • apex
  • In the stem apex, the uppermost part is the promeristem, below which is a zone of transversely oriented early cell walls, the file, or rib, meristem. (britannica.com)
  • morphology
  • Surprisingly, we find thousands of age-dependent expression changes, even when there is little change in meristem morphology. (pnas.org)
  • proteins
  • They found that the HAIRY MERISTEM proteins define a domain within which WUSCHEL (WUS) cannot work, but beyond which WUS is left free to promote stem cell proliferation. (sciencemag.org)
  • proliferation
  • The proliferation and growth rates at the meristem summit usually differ considerably from those at the periphery.It is also helps In the growth of the plant. (wikipedia.org)
  • organ initiation
  • Significant regressions between organ number and corresponding meristem size were consistent with the premise that a larger meristem size prior to organ initiation could be determining for a higher organ number. (springer.com)
  • species
  • Meristem expansion also appears to be slower but more extensive in species with larger initial meristematic size, suggesting that flower phenotype can be determined in ontogeny by this heterochronic interplay of space and time. (springer.com)
  • flower
  • Differentiating meristem region of a broccoli flower bud (Brassica oleracea italica), coloured scanning electron micrograph (SEM). (sciencephoto.com)
  • largely
  • Here we show that MP patterning activity is largely dispensable when the presumptive carboxypeptidase ALTERED MERISTEM PROGRAM 1 ( AMP1 ) is not functional, indicating that MP is primarily necessary to counteract AMP1 activity. (biologists.org)