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. 2025 Jul 3;198(3):kiaf261.
doi: 10.1093/plphys/kiaf261.

Divide and survive: PuZFP1 coordinates dual root developmental pathways for drought adaptation in Populus

Héctor H Torres-Martínez  1   2   3
Affiliations

Divide and survive: PuZFP1 coordinates dual root developmental pathways for drought adaptation in Populus

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

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Conflict of interest statement

Conflict of interest statement. The author declares no conflict of interest.

Figures

Figure.
Figure.
The proposed model of the PuZFP1-PuUBL5 module in Populus ussuriensis in response to drought stress. PuUBL5 is accumulated in roots under unstressed conditions. The accumulated PuUBL5 interacts with PuZFP1 and mediates the degradation of PuZFP1 via the 26S protease pathway. However, PuUBL5 expression is inhibited under drought stress, thereby resulting in the accumulation of PuZFP1. The accumulated PuZFP1 is expressed and regulates root development in an auxin-dependent pathway. PuZFP1 inhibits the target gene PuWRKY46 in DZ, thereby inhibiting the emergence of LRP. Meanwhile, PuEGR1 is inhibited in EZ, thereby promoting cell elongation. EZ and DZ denote elongation zone and differentiated zone, respectively (Figure and footnote from Zhao et al. (2025), Fig. 9).
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