ArticlePlant signaling & behavior2017
Thermospermine enhances translation of SAC51 and SACL1 in Arabidopsis.
Article in Plant signaling & behavior, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
7 citing papers in PubMed, 15 citations in OpenAlex.
- Decoding a polyamine signal to direct vascular fate: thermospermine meets the ribosome.Journal of experimental botany · 2026Article
- FERONIA Modulates Translational Buffering Capacity of Ribosome-Associated Gene Module in Salt-Stressed Tomato Roots.Plants (Basel, Switzerland) · 2026Article
- Polyamines as Quality Control Metabolites Operating at the Post-Transcriptional Level.Plants (Basel, Switzerland) · 2019Review
- Complexity and Conservation of Thermospermine-Responsive uORFs ofFrontiers in plant science · 2019Article
- Article
- Plant Vascular Tissues-Connecting Tissue Comes in All Shapes.Plants (Basel, Switzerland) · 2018Review
- Genome-wide analysis of basic helix-loop-helix (bHLH) transcription factors in Brachypodium distachyon.BMC genomics · 2017Article
Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The excessive xylem phenotype of acaulis5 (acl5), an Arabidopsis mutant defective in the synthesis of thermospermine, indicates that thermospermine is required for negative regulation of xylem differentiation. SAC51 was identified from a dominant suppressor of acl5, sac51-d, and encodes a basic helix-loop-helix (bHLH) protein. sac51-d has a premature termination codon in one of upstream open-reading frames (uORFs) of the SAC51 mRNA that is conserved among the SAC51 family members. Thermospermine may act to bypass the inhibitory effect of the uORF on main ORF translation. Another suppressor, sac57-d, also has a mutation in the conserved uORF of SACL3, a member of the SAC51 family. On the other hand, the double knockout of SAC51 and SACL3 is insensitive to thermospermine, suggesting their key role in the response to thermospermine. However, we found that thermospermine enhances mRNA translation of SAC51 and SACL1 but not of SACL2 and SACL3. Taken together with recent findings from other groups, we propose a mechanism by which thermospermine diffused from xylem precursor cells acts non-cell-autonomously to restrict their proliferation.
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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.