Abstract
Postembryonic development in plants is dependent on the activity of shoot and root meristems. The Arabidopsis CLAVATA3 (CLV3), a CLV3/ESR-related (CLE) ligand, is responsible for the regulation of shoot meristem organization. We generated variable lengths of chemically synthesized CLV3 peptide and revealed that 12aa sequence of CLE domain is sufficient for CLV3 function. We also examined other 25 chemically synthetic CLE peptides, which correspond to the predicted products of 30 Arabidopsis CLE genes, and found functional redundancy between these peptides. Here, we show the effects of chemically synthetic CLE peptides on shoot and root meristems and discuss about CLE function in plants.