ArticlePlant & cell physiology2020
Proteasomal Degradation of Proteins Is Important for the Proper Transcriptional Response to Sulfur Deficiency Conditions in Plants.
Article in Plant & cell physiology, 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, 15 citations in OpenAlex.
- Post-Translational Modifications in Histones and Their Role in Abiotic Stress Tolerance in Plants.Proteomes · 2023Review
- The C-Terminal Region of SLIM1 Transcription Factor Is Required for Sulfur Deficiency Response.Plants (Basel, Switzerland) · 2022Article
- Sulfur signaling and starvation response in Arabidopsis.iScience · 2022Review
- Review
- Transcriptomic analysis at organ and time scale reveals gene regulatory networks controlling the sulfate starvation response of Solanum lycopersicum.BMC plant biology · 2020Article
- The Role of Selective Protein Degradation in the Regulation of Iron and Sulfur Homeostasis in Plants.International journal of molecular sciences · 2020Review
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
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Abstract
Plants are continuously exposed to different abiotic and biotic stresses; therefore, to protect themselves, they depend on the fast reprogramming of large gene repertoires to prioritize the expression of a given stress-induced gene set over normal cellular household genes. The activity of the proteasome, a large proteolytic complex that degrades proteins, is vital to coordinate the expression of such genes. Proteins are labeled for degradation by the action of E3 ligases that site-specifically alter their substrates by adding chains of ubiquitin. Recent publications have revealed an extensive role of ubiquitination in the utilization of nutrients. This study presents the transcriptomic profiles of sulfur-deficient rosettes and roots of Arabidopsis thaliana rpt2a mutant with proteasomal malfunction. We found that genes connected with sulfur metabolism are regulated to the lesser extent in rpt2a mutant while genes encoding transfer RNAs and small nucleolar RNAs are highly upregulated. Several genes encoding E3 ligases are specifically regulated by sulfur deficiency. Furthermore, we show that a key transcription factor of sulfur deficiency response, Sulfur LIMitation1, undergoes proteasomal degradation and is able to interact with F-box protein, EBF1.
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