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The SAC51 Family Plays a Central Role in Thermospermine Responses in Arabidopsis.

Plant & cell physiology - 1 Aug 2016

Cai Qingqing, Fukushima Hiroko, Yamamoto Mai, Ishii Nami, Sakamoto Tomoaki, Kurata Tetsuya, Motose Hiroyasu, Takahashi Taku

Abstract excerpt

The acaulis5 (acl5) mutant of Arabidopsis thaliana is defective in the biosynthesis of thermospermine and shows a dwarf phenotype associated with excess xylem differentiation. SAC51 was identified from a dominant suppressor of acl5, sac51-d, and encodes a basic helix-loop-helix protein. The sac51-d mutant has a premature termination codon in an upstream open reading frame (uORF) that is conserved among all four...

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PMID: 27388339
DOI: 10.1093/pcp/pcw113

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 5 Sept 2026. Manifest publication-graph-cohort-2026-09-05.1.

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The SAC51 Family Plays a Central Role in Thermospermine Responses in Arabidopsis.PMID 27388339Read ↗

Suppression of the dwarf phenotype of an Arabidopsis mutant defective in thermospermine biosynthesis by a synonymous codon change in the SAC51 uORF.Semantic proximity Read ↗

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The dwarf phenotype of the Arabidopsis acl5 mutant is suppressed by a mutation in an upstream ORF of a bHLH gene.Semantic proximity Read ↗

Loss of function of an Arabidopsis homologue of JMJD6 suppresses the dwarf phenotype of acl5, a mutant defective in thermospermine biosynthesis.Semantic proximity Read ↗

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ACAULIS5, an Arabidopsis gene required for stem elongation, encodes a spermine synthase.Semantic proximity Read ↗

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