ArticlePlant communications2023
Arabidopsis ABCG14 forms a homodimeric transporter for multiple cytokinins and mediates long-distance transport of isopentenyladenine-type cytokinins.
Article in Plant communications, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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17 citing papers in PubMed, 35 citations in OpenAlex.
- Suppression of ZmJAZ12 Expression Modulates Jasmonic Acid and Salicylic Acid Signalling and Enhances Maize Resistance to Southern Corn Rust.Molecular plant pathology · 2026Article
- Towards an integrated molecular understanding of plant hormones.Journal of integrative plant biology · 2026Review
- Cytokinin receptor AHK3 influences leaf size by modulating trans-zeatin-type cytokinin levels in xylem.Plant & cell physiology · 2026Article
- Plant Regeneration: Influencing Factors, Regulatory Networks, and Epigenetic Mechanisms.International journal of molecular sciences · 2026Review
- OsPUP1 Modulates Cytokinin Distribution and Antioxidant Defense to Regulate Heat Stress Tolerance in Rice.Antioxidants (Basel, Switzerland) · 2026Article
- Cytokinin availability and chloroplast functional lifetime in senescing leaves.Frontiers in plant science · 2026Review
- Membrane transport of root-borne trans-zeatin riboside maintains the cytokinin homeostasis in shoots.Journal of experimental botany · 2025Article
- A Non-Specific Phytohormone Regulatory Network inPlants (Basel, Switzerland) · 2025Article
- Message hidden in α-helices-toward a better understanding of plant ABCG transporters' multispecificity.Plant physiology · 2025Article
- Laser dissection-assisted phloem transcriptomics highlights the metabolic and physiological changes accompanying clubroot disease progression in oilseed rape.The Plant journal : for cell and molecular biology · 2025Article
- A viral movement protein mediates host volatile biosynthesis to co-attract vectors and non-vectors and enhances viral infection.Frontiers in plant science · 2025Article
- The cytokinin efflux transporter ABCC4 participates in Arabidopsis root system development.Plant physiology · 2024Article
- ABCG Transporters in the Adaptation of Rice to Salt Stresses.International journal of molecular sciences · 2024Article
- ATP-binding cassette transporter TaABCG2 contributes to Fusarium head blight resistance by mediating salicylic acid transport in wheat.Molecular plant pathology · 2024Article
- Spatially distributed cytokinins: Metabolism, signaling, and transport.Plant communications · 2024Review
- Review
- Genome-wide association study reveals novel QTLs and candidate genes for panicle number in rice.Frontiers in genetics · 2024Article
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Authors and funding
12 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Cytokinins (CKs), primarily trans-zeatin (tZ) and isopentenyladenine (iP) types, play critical roles in plant growth, development, and various stress responses. Long-distance transport of tZ-type CKs meidated by Arabidopsis ATP-binding cassette transporter subfamily G14 (AtABCG14) has been well studied; however, less is known about the biochemical properties of AtABCG14 and its transporter activity toward iP-type CKs. Here we reveal the biochemical properties of AtABCG14 and provide evidence that it is also required for long-distance transport of iP-type CKs. AtABCG14 formed homodimers in human (Homo sapiens) HEK293T, tobacco (Nicotiana tabacum), and Arabidopsis cells. Transporter activity assays of AtABCG14 in Arabidopsis, tobacco, and yeast (Saccharomyces cerevisiae) showed that AtABCG14 may directly transport multiple CKs, including iP- and tZ-type species. AtABCG14 expression was induced by iP in a tZ-type CK-deficient double mutant (cypDM) of CYP735A1 and CYP735A2. The atabcg14 cypDM triple mutant exhibited stronger CK-deficiency phenotypes than cypDM. Hormone profiling, reciprocal grafting, and
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