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bioRxiv · 10.64898/2026.01.29.702522

Rewiring vascular patterning through translational control in Arabidopsis

Ko, D.·Ruonala, R.·Liu, H.·Novak, O.·Ljung, K.·De Diego, N.·Malinowski, R.·Helariutta, Y.
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Abstract

Plant vascular systems exhibit a wide developmental spectrum, from rigid woody tissues to soft, fleshy storage tissues. We show that increasing polyamine thermospermine transport into wild-type rootstocks, together with cytokinin, reprograms xylem identity from woody to fleshy in Arabidopsis. Our findings establish thermospermine as a mobile developmental signal and suggest a strategy for engineering plant vascular architecture.

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Ko, D., Ruonala, R., Liu, H., Novak, O., Ljung, K., De Diego, N., Malinowski, R., Helariutta, Y.. 2026-01-30. Rewiring vascular patterning through translational control in Arabidopsis. https://doi.org/10.64898/2026.01.29.702522

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