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Nature 426, 132-135 (13 November 2003) | doi:10.1038/426132b

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Plant development: An axis of auxin

Stefan Kepinski1 & Ottoline Leyser

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Embryos have two distinct ends, which become apparent early on. Quite how this initial polarity is sustained in plant embryos has been unclear. Step forward the agent provocateur of plant development — auxin.

In multicellular organisms, different kinds of cell are specialized for different tasks — reproduction, say, or light perception. Clearly, the proper functioning of these organisms requires that the various cell types are positioned correctly relative to one another.

  1. Department of Biology, University of York, York YO10 5YW, UK.

Correspondence to: Stefan Kepinski1 Email: ssk2@york.ac.uk

Correspondence to: Ottoline Leyser Email: hmol1@york.ac.uk