Abstract
Cell polarity patterns associated with plant phyllotaxis are thought to be determined by mechanical signals or auxin flux1–6. Here we use mosaic expression of the serine threonine kinase PINOID (PID) in the shoot to investigate the flux hypothesis. We find that PID promotes changes in PIN1 polarity irrespective of initial or neighboring cell polarities, arguing against a role for flux in regulating phyllotaxis.
Competing Interest Statement
The authors have declared no competing interest.
Copyright
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