ArticleJournal of experimental botany2017
SnRK1 phosphorylation of FUSCA3 positively regulates embryogenesis, seed yield, and plant growth at high temperature in Arabidopsis.
Article in Journal of experimental botany, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 25 papers.
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Who cites it
25 citing papers in PubMed.
- A tree peony INDETERMINATE DOMAIN transcription factor PrIDD7 inhibits seed oil accumulation.Plant cell reports · 2026Article
- ZmAGA1 enhances seed germination through raffinose hydrolysis and ZmSnRK1α-mediated starch mobilization in maize.Genome biology · 2026Article
- Genome-Wide Identification ofPlants (Basel, Switzerland) · 2025Article
- Raffinose family oligosaccharide hydrolysis by alkaline α-galactosidase CsAGA2 controls seed development in cucumber.The Plant cell · 2025Article
- Differential metabolic reprogramming in developing soybean embryos in response to nutritional conditions and abscisic acid.Plant molecular biology · 2023Article
- Sugar starvation activates the OsSnRK1a-OsbHLH111/OsSGI1-OsTPP7 module to mediate growth inhibition of rice.Plant biotechnology journal · 2023Article
- Endosperm cellularization failure induces a dehydration-stress response leading to embryo arrest.The Plant cell · 2023Article
- ABA-induced phosphorylation of basic leucine zipper 29, ABSCISIC ACID INSENSITIVE 19, and Opaque2 by SnRK2.2 enhances gene transactivation for endosperm filling in maize.The Plant cell · 2022Article
- The MADS-domain factor AGAMOUS-Like18 promotes somatic embryogenesis.Plant physiology · 2022Article
- SnRK1 stimulates the histone H3K27me3 demethylase JMJ705 to regulate a transcriptional switch to control energy homeostasis.The Plant cell · 2021Article
- Temporal Control of Seed Development in Dicots: Molecular Bases, Ecological Impact and Possible Evolutionary Ramifications.International journal of molecular sciences · 2021Review
- Sweet Modifications Modulate Plant Development.Biomolecules · 2021Review
- The B3 domain-containing transcription factor ZmABI19 coordinates expression of key factors required for maize seed development and grain filling.The Plant cell · 2021Article
- Genomic Characterization and Expression Analysis of the SnRK Family Genes inPlants (Basel, Switzerland) · 2021Article
- PhosPhAt 4.0: An Updated Arabidopsis Database for Searching Phosphorylation Sites and Kinase-Target Interactions.Methods in molecular biology (Clifton, N.J.) · 2021Article
- Article
- Protein Phosphorylation in Plant Cell Signaling.Methods in molecular biology (Clifton, N.J.) · 2021Review
- Knowing When to Silence: Roles of Polycomb-Group Proteins in SAM Maintenance, Root Development, and Developmental Phase Transition.International journal of molecular sciences · 2020Review
- Stop the FUSS: BPCs RestrictThe Plant cell · 2020Article
- An abscisic acid-responsive protein interaction network for sucrose non-fermenting related kinase1 in abiotic stress response.Communications biology · 2020Article
Corrections and comments
- Erratum issued
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The transcription factor FUSCA3 (FUS3) acts as a major regulator of seed maturation in Arabidopsis. FUS3 is phosphorylated by the SnRK1 catalytic subunit AKIN10/SnRK1α1, which belongs to a conserved eukaryotic kinase complex involved in energy homeostasis. Here we show that AKIN10 and FUS3 share overlapping expression patterns during embryogenesis, and that FUS3 is phosphorylated by AKIN10 in embryo cell extracts. To understand the role of FUS3 phosphorylation, we generated fus3-3 plants carrying FUS3 phosphorylation-null (FUS3S>A) and phosphorylation-mimic (FUS3S>D) variants. While FUS3S>A and FUS3S>D rescued all the fus3-3 seed maturation defects, FUS3S>A showed reduced transcriptional activity and enhanced fus3-3 previously uncharacterized phenotypes. FUS3S>A embryos displayed increased seed abortion due to maternal FUS3S>A and delayed embryo development, which correlated with a strong decrease in seed yield (~50%). Accordingly, the akin10 and akin11 mutants displayed a frequency of seed abortion similar to fus3-3. When plants were grown at elevated temperature, most phenotypes were exaggerated in FUS3S>A plants, and progeny seedlings overall grew poorly, suggesting that phosphorylation of FUS3 plays an important role during early embryogenesis and under heat stress. Collectively, these results suggest that FUS3 phosphorylation and SnRK1 are required for embryogenesis and integration of environmental cues to ensure the survival of the progeny.
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