ArticlePlant biotechnology journal2016
Role of Arabidopsis AtPI4Kγ3, a type II phosphoinositide 4-kinase, in abiotic stress responses and floral transition.
Article in Plant biotechnology journal, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed, 49 citations in OpenAlex.
- Natural variation in Phosphatidylinositol 4-Kinase OsPI4Kγ7 and its interaction with OsLIC balance rice yield and latitudinal adaptation.Nature communications · 2026Article
- Mango pangenome reveals dramatic impacts of reference bias on population genomic analyses.Horticulture research · 2025Article
- Transcriptomic insights into the epigenetic modulation of turnip mosaic virus evolution in Arabidopsis thaliana.BMC genomics · 2024Article
- The MADS-box genesFrontiers in plant science · 2024Article
- Phosphoinositides in plant-pathogen interaction: trends and perspectives.Stress biology · 2023Review
- The Bro1-like domain-containing protein, AtBro1, modulates growth and abiotic stress responses in Arabidopsis.Frontiers in plant science · 2023Article
- Unravelling the molecular mechanism underlying drought stress response in chickpeaFrontiers in plant science · 2023Article
- Article
- An Arabidopsis mutant deficient in phosphatidylinositol-4-phosphate kinases ß1 and ß2 displays altered auxin-related responses in roots.Scientific reports · 2022Article
- Isoprenoid-Derived Metabolites and Sugars in the Regulation of Flowering Time: Does Day Length Matter?Frontiers in plant science · 2021Review
- Low Mannitol Concentrations inPlants (Basel, Switzerland) · 2020Article
- PI4Kγ2 Interacts with E3 Ligase MIEL1 to Regulate Auxin Metabolism and Root Development.Plant physiology · 2020Article
- Transcriptomic analysis of poco1, a mitochondrial pentatricopeptide repeat protein mutant in Arabidopsis thaliana.BMC plant biology · 2020Article
- LPIAT, aInternational journal of molecular sciences · 2020Article
- PECTIN ACETYLESTERASE9 Affects the Transcriptome and Metabolome and Delays Aphid Feeding.Plant physiology · 2019Article
- Nicotiana benthamiana phosphatidylinositol 4-kinase type II regulates chilli leaf curl virus pathogenesis.Molecular plant pathology · 2019Article
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Phosphoinositides (PIs) are essential metabolites which are generated by various lipid kinases and rapidly respond to a variety of environmental stimuli in eukaryotes. One of the precursors of important regulatory PIs, phosphatidylinositol (PtdIn) 4-phosphate, is synthesized by PtdIns 4-kinases (PI4K). Despite its wide distribution in eukaryotes, its role in plants remains largely unknown. Here, we show that the activity of AtPI4Kγ3 gene, an Arabidopsis (Arabidopsis thaliana) type II PtdIn 4-kinase, is regulated by DNA demethylation and some abiotic stresses. AtPI4Kγ3 is targeted to the nucleus and selectively bounds to a few PtdIns. It possessed autophosphorylation activity but unexpectedly had no detectable lipid kinase activity. Overexpression of AtPI4Kγ3 revealed enhanced tolerance to high salinity or ABA along with inducible expression of a host of stress-responsive genes and an optimal accumulation of reactive oxygen species. Furthermore, overexpressed AtPI4Kγ3 augmented the salt tolerance of bzip60 mutants. The ubiquitin-like domain of AtPI4Kγ3 is demonstrated to be essential for salt stress tolerance. Besides, AtPI4Kγ3-overexpressed plants showed a late-flowering phenotype, which was caused by the regulation of some flowering pathway integrators. In all, our results indicate that AtPI4Kγ3 is necessary for reinforcement of plant response to abiotic stresses and delay of the floral transition.
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