ArticlePlant physiology2021
Gibberellin signaling mediates lateral root inhibition in response to K+-deprivation.
Article in Plant physiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 38 citations in OpenAlex.
- Context matters: coordinated transcriptional regulation and root plasticity under multinutrient conditions.The New phytologist · 2026Article
- Potassium Deficiency and Hormone Signalling in Plants.Plant, cell & environment · 2026Review
- Transcriptional regulation of root development in cacao: a genome-wide comparative analysis between zygotic and somatic embryo-derived seedlings.Frontiers in plant science · 2026Article
- Interaction of genes and hormones associated with germination in onion seeds under accelerated aging conditions.BMC plant biology · 2025Article
- Gibberellin deficiency uncouples shoot and root growth in tomato and alters morphology and carbon allocation.Planta · 2025Article
- Gibberellins: extending the Green Revolution.Journal of experimental botany · 2025Review
- TORC pathway intersects with a calcium sensor kinase network to regulate potassium sensing inProceedings of the National Academy of Sciences of the United States of America · 2023Article
- Ethylene response factor ERF022 is involved in regulating Arabidopsis root growth.Plant molecular biology · 2023Article
- Friends in Arms: Flavonoids and the Auxin/Cytokinin Balance in Terrestrialization.Plants (Basel, Switzerland) · 2023Review
- Effect of Potassium Deficiency on Physiological Responses and Anatomical Structure of Basil,Biology · 2022Article
- Modeling reveals posttranscriptional regulation of GA metabolism enzymes in response to drought and cold.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- Combined morpho-physiological, ionomic and transcriptomic analyses reveal adaptive responses of allohexaploid wheat (Triticum aestivum L.) to iron deficiency.BMC plant biology · 2022Article
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Authors and funding
4 authors at 1 institution in 1 country.
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Abstract
The potassium ion (K+) is vital for plant growth and development, and K+-deprivation leads to reduced crop yields. Here we describe phenotypic, transcriptomic, and mutant analyses to investigate the signaling mechanisms mediating root architectural changes in Arabidopsis (Arabidopsis thaliana) Columbia. We showed effects on root architecture are mediated through a reduction in cell division in the lateral root (LR) meristems, the rate of LR initiation is reduced but LR density is unaffected, and primary root growth is reduced only slightly. This was primarily regulated through gibberellic acid (GA) signaling, which leads to the accumulation of growth-inhibitory DELLA proteins. The short LR phenotype was rescued by exogenous application of GA but not of auxin or by the inhibition of ethylene signaling. RNA-seq analysis showed upregulation by K+-deprivation of the transcription factors JUNGBRUNNEN1 (JUB1) and the C-repeat-binding factor (CBF)/dehydration-responsive element-binding factor 1 regulon, which are known to regulate GA signaling and levels that regulate DELLAs. Transgenic overexpression of JUB1 and CBF1 enhanced responses to K+ stress. Attenuation of the reduced LR growth response occurred in mutants of the CBF1 target gene SFR6, implicating a role for JUB1, CBF1, and SFR6 in the regulation of LR growth in response to K+-deprivation via DELLAs. We propose this represents a mechanism to limit horizontal root growth in conditions where K+ is available deeper in the soil.
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