ArticleGenes & genomics2020
14-3-3 proteins contribute to leaf and root development via brassinosteroid insensitive 1 in Arabidopsis thaliana.
Article in Genes & genomics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 18 citations in OpenAlex.
- The 14-3-3 Protein SlTFT1 Accelerates Tomato Fruit Ripening by Binding and Stabilising YFT1 in the Ethylene Signalling Pathway.Plant biotechnology journal · 2025Article
- Mechanistic Insights into the Function of 14-3-3 Proteins as Negative Regulators of Brassinosteroid Signaling in Arabidopsis.Plant & cell physiology · 2024Article
- Identification of the 14-3-3 Gene Family in Bamboo and Characterization ofInternational journal of molecular sciences · 2022Article
- BnGF14-2c Positively Regulates Flowering via the Vernalization Pathway in Semi-Winter Rapeseed.Plants (Basel, Switzerland) · 2022Article
- The role of 14-3-3 proteins in plant growth and response to abiotic stress.Plant cell reports · 2022Review
- Stigma/Style Cell-Cycle Inhibitor 1, a Regulator of Cell Proliferation, Interacts With a Specific 14-3-3 Protein and Is Degraded During Cell Division.Frontiers in plant science · 2022Article
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundBrassinosteroids (BR) are essential growth hormone in plants. Various components involved in signal transduction pathway have been identified as targets of 14-3-3 phospho-binding proteins. Previously, we showed that 14-3-3 proteins directly interact with the Brassinosteroid Insensitive 1 (BRI1), the BR receptor kinase, and are also subject to phosphorylation in a BR-dependent manner.
objectiveIn this study, we aimed to examine a potential interplay between 14-3-3 proteins and BRI1 in plant growth.
methodsMorphological phenotypes of a T-DNA insertion mutant line, 14-3-3ψφε, defective in three 14-3-3 isoforms, psi, phi and epsilon, were characterized and compared with bri1-5 and two transgenic lines for BRI1, BRI1-Flag and BRI1-Flag (14-3-3ψφε). We also generated complementation lines carrying each of the three 14-3-3 genes and determined their differences in rosette growth.
resultsNo significant differences between the wild-type and 14-3-3ψφε seedlings were observed regardless of BR applications. However, BRI1-Flag (14-3-3ψφε) showed a significantly reduced cold tolerance and BR sensitivity in hypocotyl and root development when compared to BRI1-Flag. In addition, narrower leaf shape and smaller rosette size were observed in BRI1-Flag (14-3-3ψφε), while the mutant phenotypes were partially restored in the complementation lines, two of which with 14-3-3φ and 14-3-3ε showed the rosette growth comparable to BRI1-Flag.
conclusionTaken together, our results suggested that 14-3-3 proteins might positively regulate BRI1 activity and showed that 14-3-3 isoforms have different functional impacts in BR signaling.
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