The role of hormones in shoot apical meristem function

Plant organs are produced in meristems in a continuous and predictable but nevertheless flexible manner. Phytohormones and transcription factors cooperate to balance meristem maintenance and organ production. Recent research has provided clues to the mechanisms underlying this cooperation. KNOTTED1-...

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Veröffentlicht in:	Current opinion in plant biology 2006-10, Vol.9 (5), p.484-489
Hauptverfasser:	Shani, Eilon, Yanai, Osnat, Ori, Naomi
Format:	Artikel
Sprache:	eng
Schlagworte:	apical meristems Arabidopsis - growth & development Arabidopsis - metabolism Arabidopsis - physiology Arabidopsis Proteins - physiology auxins cytokinins Cytokinins - metabolism Cytokinins - physiology Down-Regulation gene expression regulation gibberellins Gibberellins - metabolism Homeodomain Proteins - physiology Indoleacetic Acids literature reviews Meristem - growth & development Meristem - metabolism Meristem - physiology Plant Growth Regulators - metabolism Plant Growth Regulators - physiology Plant Leaves - growth & development Plant Proteins - physiology plants shoot meristems signal transduction transcription factors
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Beschreibung
Zusammenfassung:	Plant organs are produced in meristems in a continuous and predictable but nevertheless flexible manner. Phytohormones and transcription factors cooperate to balance meristem maintenance and organ production. Recent research has provided clues to the mechanisms underlying this cooperation. KNOTTED1-like homeobox (KNOX) and WUSCHEL (WUS) transcription factors facilitate high cytokinin activity in the shoot apical meristem (SAM), whereas high gibberellin and auxin activities promote the initiation of lateral organs at specific sites in the SAM flanks.
ISSN:	1369-5266 1879-0356
DOI:	10.1016/j.pbi.2006.07.008