ArticlePlant physiology2014
PINOID AGC kinases are necessary for phytochrome-mediated enhancement of hypocotyl phototropism in Arabidopsis.
Article in Plant physiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
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Who cites it
26 citing papers in PubMed, 44 citations in OpenAlex.
- Reversible phosphorylation of NPH3/RPT2-like proteins regulates phototropin receptor signaling.The Plant cell · 2026Article
- The protein kinases KIPK and KIPK-LIKE1 suppress overbending during negative hypocotyl gravitropic growth in Arabidopsis.The Plant cell · 2025Article
- Genome-Wide Analysis ofInternational journal of molecular sciences · 2025Article
- Protein phosphatase PP2C19 controls hypocotyl phototropism through the phosphorylation modification of NONPHOTOTROPIC HYPOCOTYL3 in Arabidopsis.Plant & cell physiology · 2025Article
- The action of enhancing weak light capture via phototropic growth and chloroplast movement in plants.Stress biology · 2022Review
- Article
- Subcellular trafficking and post-translational modification regulate PIN polarity in plants.Frontiers in plant science · 2022Review
- High-resolution imaging as a tool for identifying quantitative trait loci that regulate photomorphogenesis inAoB PLANTS · 2021Article
- Photoreceptors Regulate Plant Developmental Plasticity through Auxin.Plants (Basel, Switzerland) · 2020Review
- Plasma membrane receptor-like kinases and transporters are associated with 2,4-D resistance in wild radish.Annals of botany · 2020Article
- OsPINOID Regulates Stigma and Ovule Initiation through Maintenance of the Floral Meristem by Auxin Signaling.Plant physiology · 2019Article
- Phosphatidic Acid Directly Regulates PINOID-Dependent Phosphorylation and Activation of the PIN-FORMED2 Auxin Efflux Transporter in Response to Salt Stress.The Plant cell · 2019Article
- The Nuts and Bolts of PIN Auxin Efflux Carriers.Frontiers in plant science · 2019Review
- Involvement of PP6-type protein phosphatase in hypocotyl phototropism in Arabidopsis seedlings.Plant signaling & behavior · 2018Article
- Role of PINOID-mediated COP1 phosphorylation inProceedings of the National Academy of Sciences of the United States of America · 2017Article
- Dynamic PIN-FORMED auxin efflux carrier phosphorylation at the plasma membrane controls auxin efflux-dependent growth.Proceedings of the National Academy of Sciences of the United States of America · 2017Article
- Perturbation of Auxin Homeostasis and Signaling byFrontiers in plant science · 2017Article
- Alteration in Auxin Homeostasis and Signaling by Overexpression Of PINOID Kinase Causes Leaf Growth Defects inFrontiers in plant science · 2017Article
- Regulation of polar auxin transport by protein and lipid kinases.Journal of experimental botany · 2016Review
- Ethylene Is Not Responsible for Phytochrome-Mediated Apical Hook Exaggeration in Tomato.Frontiers in plant science · 2016Article
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Authors and funding
3 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Several members of the AGCVIII kinase subfamily, which includes PINOID (PID), PID2, and WAVY ROOT GROWTH (WAG) proteins, have previously been shown to phosphorylate PIN-FORMED (PIN) auxin transporters and control the auxin flow in plants. PID has been proposed as a key component of the phototropin signaling pathway that induces phototropic responses, although the responses were not significantly impaired in the pid single and pid wag1 wag2 triple mutants. This raises questions about the functional roles of the PID family in phototropic responses. Here, we investigated hypocotyl phototropism in the pid pid2 wag1 wag2 quadruple mutant in detail to clarify the roles of the PID family in Arabidopsis (Arabidopsis thaliana). The pid quadruple mutants exhibited moderate responses in continuous light-induced phototropism with a decrease in growth rates of hypocotyls and normal responses in pulse-induced phototropism. However, they showed serious defects in enhancements of pulse-induced phototropic curvatures and lateral fluorescent auxin transport by red light pretreatment. Red light pretreatment significantly reduced the expression level of PID, and the constitutive expression of PID prevented pulse-induced phototropism, irrespective of red light pretreatment. This suggests that the PID family plays a significant role in phytochrome-mediated phototropic enhancement but not the phototropin signaling pathway. Red light treatment enhanced the intracellular accumulation of PIN proteins in response to the vesicle-trafficking inhibitor brefeldin A in addition to increasing their expression levels. Taken together, these results suggest that red light preirradiation enhances phototropic curvatures by up-regulation of PIN proteins, which are not being phosphorylated by the PID family.
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