2007•Encyclopedia of Life SciencesRequires access
Regulatory Mechanisms of Phyllotaxy
Andrew Hudson
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Abstract
Abstract Hypotheses to explain phyllotaxy – the regular positioning of leaves on stems – were first proposed in the nineteenth century. Recently, polarized transport of the photohormone auxin was found to have a key role in generating phyllotaxy patterns that is consistent with classical models. How auxin might interact with other patterning mechanism to regulate phyllotaxy is currently unclear.