Cytokinin and auxin interaction in root stem-cell specification during early embryogenesis

Bruno Müller () and Jen Sheen ()
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Bruno Müller: Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, USA
Jen Sheen: Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114, USA

Nature, 2008, vol. 453, issue 7198, 1094-1097

Abstract: Plant stem cells: A question of auxin/cytokinin balance It has been known for 50 years that the interplay between the plant hormones auxin and cytokinin is critical for shoot and root regeneration from cultured plant tissues, but the underlying molecular mechanisms remained obscure. Auxin was later found responsible for root stem-cell specification from the plant stem-cell pools established during embryogenesis. Bruno Müller and Jen Sheen now demonstrate that cytokinin is expressed during early embryogenesis, and that an interplay between auxin and cytokinin signalling pathways is critical for specifying the first root stem-cell niche.

Date: 2008
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DOI: 10.1038/nature06943

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