Endoplasmic reticulum stress controls PIN-LIKES abundance and thereby growth adaptation
Abstract: Extreme environmental conditions eventually limit plant growth [J. R. Dinneny, Annu. Rev. Cell Dev. Biol. 35, 1–19 (2019), N. Gigli-Bisceglia, C. Testerink, Curr. Opin. Plant Biol. 64, 102120 (2021)]. Here, we reveal a mechanism that enables multiple external cues to get integrated into auxin-dependent growth programs in Arabidopsis thaliana. Our forward genetics approach on dark-grown hypocotyls uncovered that an imbalance in membrane lipids enhances the protein abundance of PIN-LIKES (PILS) [E. Barbez et al., Nature 485, 119 (2012)] auxin transport facilitators at the endoplasmic reticulum (ER), which thereby limits nuclear auxin signaling and growth rates. We show that this subcellular response relates to ER stress signaling, which directly impacts PILS protein turnover in a tissue-dependent manner. This mechanism allows PILS proteins to integrate environmental input with phytohormone auxin signaling, contributing to stress-induced growth adaptation in plants
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Anmerkungen
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Proceedings of the National Academy of Sciences. - 120, 31 (2023) , e2218865120, ISSN: 1091-6490
- Ereignis
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Veröffentlichung
- (wo)
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Freiburg
- (wer)
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Universität
- (wann)
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2023
- Urheber
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Waidmann, Sascha
Béziat, Chloé
Ferreira Da Silva Santos, Jonathan
Feraru, Elena
Feraru, Mugurel I.
Sun, Lin
Noura, Seinab
Boutté, Yohann
Kleine-Vehn, Jürgen
- DOI
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10.1073/pnas.2218865120
- URN
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urn:nbn:de:bsz:25-freidok-2396454
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
- 14.08.2025, 10:56 MESZ
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Beteiligte
- Waidmann, Sascha
- Béziat, Chloé
- Ferreira Da Silva Santos, Jonathan
- Feraru, Elena
- Feraru, Mugurel I.
- Sun, Lin
- Noura, Seinab
- Boutté, Yohann
- Kleine-Vehn, Jürgen
- Universität
Entstanden
- 2023
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