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Sci. Signal., 11 March 2008
Vol. 1, Issue 10, p. ec95
[DOI: 10.1126/stke.110ec95]

EDITORS' CHOICE

Botany Plants Going TOPLESS

Beverly A. Purnell

Science, AAAS, Washington, DC 20005, USA

The plant hormone auxin is a key regulator of proper plant development. Failure to properly respond to auxin leads to the inability to develop a root and vasculature during Arabidopsis embryogenesis. Szemenyei et al. now show that TOPLESS is an integral cofactor required for proper auxin response through the AUX/IAA pathway. These data provide insight into the mechanism by which auxin-mediated transcription directs plant development.

H. Szemenyei, M. Hannon, J. A. Long, TOPLESS mediates auxin-dependent transcriptional repression during Arabidopsis embryogenesis. Science 319, 1384-1386 (2008). [Abstract] [Full Text]

Citation: B. A. Purnell, Plants Going TOPLESS. Sci. Signal. 1, ec95 (2008).

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Science Signaling. ISSN 1937-9145 (pre-2008: Science's STKE. ISSN 1525-8882)