ArticleInternational journal of molecular sciences2020
The Arabidopsis RLCK VI_A2 Kinase Controls Seedling and Plant Growth in Parallel with Gibberellin.
Article in International journal of molecular sciences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 8 citations in OpenAlex.
- Arabidopsis MACP2 contributes to autophagy induction by modulating starvation-induced reactive oxygen species homeostasis.Advanced biotechnology · 2025Article
- PIF4-dependent 2-hydroxymelatonin and 3-hydroxymelatonin biosynthesis is involved in skotomorphogenic seedling growth in Arabidopsis thaliana.The Plant journal : for cell and molecular biology · 2025Article
- The REPLUMLESS Transcription Factor Controls the Expression of theInternational journal of molecular sciences · 2024Article
- Advances in the Molecular Mechanisms of Abscisic Acid and Gibberellins Functions in Plants.International journal of molecular sciences · 2021Article
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Authors and funding
9 authors at 3 institutions in 2 countries.
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Abstract
The plant-specific receptor-like cytoplasmic kinases (RLCKs) form a large, poorly characterized family. Members of the RLCK VI_A class of dicots have a unique characteristic: their activity is regulated by Rho-of-plants (ROP) GTPases. The biological function of one of these kinases was investigated using a T-DNA insertion mutant and RNA interference. Loss of RLCK VI_A2 function resulted in restricted cell expansion and seedling growth. Although these phenotypes could be rescued by exogenous gibberellin, the mutant did not exhibit lower levels of active gibberellins nor decreased gibberellin sensitivity. Transcriptome analysis confirmed that gibberellin is not the direct target of the kinase; its absence rather affected the metabolism and signalling of other hormones such as auxin. It is hypothesized that gibberellins and the RLCK VI_A2 kinase act in parallel to regulate cell expansion and plant growth. Gene expression studies also indicated that the kinase might have an overlapping role with the transcription factor circuit (PIF4-BZR1-ARF6) controlling skotomorphogenesis-related hypocotyl/cotyledon elongation. Furthermore, the transcriptomic changes revealed that the loss of
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