ArticleThe Plant cell2024
The RPT2a-MET1 axis regulates TERMINAL FLOWER1 to control inflorescence meristem indeterminacy in Arabidopsis.
Article in The Plant cell, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 6 citations in OpenAlex.
- RPT2a-mediated degradation of WDR5a regulates flowering time in Arabidopsis.Plant cell reports · 2026Article
- The BnTFL1-BnJAM3-BnSWEETs Module Orchestrates Seed Storage Reserve Accumulation in Brassica napus.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- The transcription factor ANAC017 links mitochondrial retrograde signaling with the ubiquitin-proteasome system to control mitochondrial function in Arabidopsis.Plant communications · 2026Article
- Structure and autoinhibitory regulation of MET1 in the maintenance of plant CG methylation.The Plant cell · 2025Article
- "Two scoops, please!": Twin cryo-EM structures of an Arabidopsis thaliana DNA methyltransferase.The Plant cell · 2025Article
- Fine mapping of the dominant female sterility gene and novel model of hybrid seed production in cabbage (Brassica oleracea L. var. capitata).TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Dt1 interacts with HB40 to affect lateral root primordium development by regulating CDC48 in soybean.Plant biotechnology journal · 2025Article
- Construction of Shoot Apical Meristem cDNA Yeast Library ofCurrent issues in molecular biology · 2024Article
Corrections and comments
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Authors and funding
9 authors at 2 institutions in 2 countries.
Funding
Abstract
Plant inflorescence architecture is determined by inflorescence meristem (IM) activity and controlled by genetic mechanisms associated with environmental factors. In Arabidopsis (Arabidopsis thaliana), TERMINAL FLOWER1 (TFL1) is expressed in the IM and is required to maintain indeterminate growth, whereas LEAFY (LFY) is expressed in the floral meristems (FMs) formed at the periphery of the IM and is required to activate determinate floral development. Here, we address how Arabidopsis indeterminate inflorescence growth is determined. We show that the 26S proteasome subunit REGULATORY PARTICLE AAA-ATPASE 2a (RPT2a) is required to maintain the indeterminate inflorescence architecture in Arabidopsis. rpt2a mutants display reduced TFL1 expression levels and ectopic LFY expression in the IM and develop a determinate zigzag-shaped inflorescence. We further found that RPT2a promotes DNA METHYLTRANSFERASE1 degradation, leading to DNA hypomethylation upstream of TFL1 and high TFL1 expression levels in the wild-type IM. Overall, our work reveals that proteolytic input into the epigenetic regulation of TFL1 expression directs inflorescence architecture in Arabidopsis, adding an additional layer to stem cell regulation.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.