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. 2025 Feb 7;197(2):kiaf010.
doi: 10.1093/plphys/kiaf010.

Go with the flow: ABCC4 mediates cytokinin efflux to control root development

Affiliations

Go with the flow: ABCC4 mediates cytokinin efflux to control root development

Héctor H Torres-Martínez. Plant Physiol. .
No abstract available

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Conflict of interest statement

Conflict of interest statement. The author declares that there is no conflict of interest.

Figures

Figure 1.
Figure 1.
Proposed action mechanism of ABCC4 to regulate root development. In this research, Uragami et al. (2024) uncovered and characterized a new cytokinin efflux transporter that plays an important role in controlling root development. Evidence provided in this work suggests a role for ABCC4 in establishing the transition domain linked to other cytokinin-dependent previously reported mechanisms. Thus, ABCC4 exports cytokinin to the apoplast in the transition domain, and this signal is read out by neighboring cells, which in turn triggers the change of developmental status from a meristematic cell to cell elongation and differentiation. The schematic drawing was made on Inkscape. Cell outlined root tip was created by Frédéric Bouché and is distributed through Bioicons.com under the license CC-BY 4.0 https://creativecommons.org/licenses/by/4.0/.

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