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Science 11 August 2006:
Vol. 313. no. 5788, pp. 773 - 774
DOI: 10.1126/science.1131833
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Perspectives

BOTANY:
Plant Cells CLEave Their Way to Differentiation

Rüdiger Simon and Yvonne Stahl

Two peptides with very similar amino acid sequences mediate short-range cell-cell signaling in plants. One suppresses and the other promotes the differentiation of stem cells.

The authors are at the Institut für Genetik, Heinrich Heine Universität, 40225 Düsseldorf, Germany. E-mail: ruediger.simon{at}uni-duesseldorf.de

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Science. ISSN 0036-8075 (print), 1095-9203 (online)