KELCH F-BOX protein positively influences Arabidopsis seed germination by targeting PHYTOCHROME-INTERACTING FACTOR1

Majee, Manoj; Kumar, Santosh; Kathare, Praveen Kumar; Wu, Shuiqin; Gingerich, Derek J.; Nayak, Nihar R.; Salaita, Louai; Dinkins, Randy D.; Martin, Kathleen M.; Goodin, Michael M.; Dirk, Lynnette M.A.; Lloyd, Taylor D.; Zhu, Ling; Chappell, Joseph; Hunt, Arthur G.; Vierstra, Richard D.; Downie, A. Bruce

doi:10.1073/pnas.1711919115

Cited by 61 publications

(50 citation statements)

References 92 publications

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“…PIF1 is also known to be regulated by de-etiolated 1 (DET1) that functions upstream of HFR1, a key positive transcriptional regulator of seed germination [39]. A KELCH F-box protein, CTG10 (cold temperature germinating 10) can bind to PIF1, negatively influencing PIF1 stability, stimulating the completion of germination [40]. In addition to HFR1 and CTG10, two jumonji C-domain containing histone demethylases, JMJ20 and JMJ22, acting redundantly as positive regulators of germination through the interaction with SOM, have been discovered.…”

Section: Seed Germinationmentioning

confidence: 99%

Regulation of Photomorphogenic Development by Plant Phytochromes

Tripathi

Hoang

Han

et al. 2019

IJMS

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Photomorphogenesis and skotomorphogenesis are two key events that control plant development, from seed germination to flowering and senescence. A group of wavelength-specific photoreceptors, E3 ubiquitin ligases, and various transcription factors work together to regulate these two critical processes. Phytochromes are the main photoreceptors in plants for perceiving red/far-red light and transducing the light signals to downstream factors that regulate the gene expression network for photomorphogenic development. In this review, we highlight key developmental stages in the life cycle of plants and how phytochromes and other components in the phytochrome signaling pathway play roles in plant growth and development.

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Section: Seed Germinationmentioning

confidence: 99%

Regulation of Photomorphogenic Development by Plant Phytochromes

Tripathi

Hoang

Han

et al. 2019

IJMS

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“…The successful transition from embryos to seedlings is a well-regulated process inside seeds that is dictated by various environmental cues, particularly light. Recently, an FBP, COLD TEMPERATURE-GERMINATING-10 (CTG10), has been identified as a modulator for seed germination by negatively regulating PHYTOCHROME-INTERACTING FACTOR 1 (PIF1) in Arabidopsis (Majee et al 2018). PIF1 is responsible for interrupting completion of seed germination in the dark by promoting the transcription of genes responsible for decreasing GA sensitivity, REPRESSOR OF GA1-3 (RGA) and GA-INSENSITIVE (GAI) (Oh et al 2007).…”

Section: Seed Germinationmentioning

confidence: 99%

“…PIF1 is responsible for interrupting completion of seed germination in the dark by promoting the transcription of genes responsible for decreasing GA sensitivity, REPRESSOR OF GA1-3 (RGA) and GA-INSENSITIVE (GAI) (Oh et al 2007). Majee et al (2018) demonstrated an increase in germination efficiency and facilitated loss of PIF1 protein in the CTG10-overexpression (CTG10-OE) plant line under light conditions. The physical interaction between CTG10 and PIF1 is supported by the results of yeast two-hybrid, BiFC, and co-immunoprecipitation assays, providing a biochemical and molecular basis for the role of CTG10 in PIF1 regulation.…”

Section: Seed Germinationmentioning

confidence: 99%

Diverse and dynamic roles of F-box proteins in plant biology

Hamid

Ahmad-Fauzi

Zainal

et al. 2020

Planta

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The SCF complex is a widely studied multi-subunit ring E3 ubiquitin ligase that tags targeted proteins with ubiquitin for protein degradation by the ubiquitin 26S-proteasome system (UPS). The UPS is an important system that generally keeps cellular events tightly regulated by purging misfolded or damaged proteins and selectively degrading important regulatory proteins. The specificity of this post-translational regulation is controlled by F-box proteins (FBPs) via selective recognition of a protein-protein interaction motif at the C-terminal domain. Hence, FBPs are pivotal proteins in determining the plant response in multiple scenarios. It is not surprising that the FBP family is one of the largest protein families in the plant kingdom. In this review, the roles of FBPs, specifically in plants, are compiled to provide insights into their involvement in secondary metabolites, plant stresses, phytohormone signalling, plant developmental processes and miRNA biogenesis. Keywords Ubiquitin 26S-proteasome system (UPS) • SCF complex • F-box protein (FBP) • Plant stresses • Phytohormone signalling • Secondary metabolites • Plant development • miRNA

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“…In this process, several transcriptional factors prevent PIF1 from binding to its target genes and promote seed germination, such as LONG HYPOCOTYL IN FAR-RED1 (HFR1) and HECATE2 (HEC2) (Shi et al 2013;Zhu et al 2016). Two E3 ubiquitin ligases, CONSTITUTIVE PHOTOMORPHOGENEIC1-SUPPRESSOR OF PHYA (COP1-SPA) complex and KELCH F-box protein COLD TEMPERATURE GERMINATING10 (CTG10), accelerate PIF1 destruction and subsequent seed germination (Zhu et al 2015;Majee et al 2018). In contrast, DE-ETIOLATED1 (DET1) and COP10 protein promote the accumulation of PIF1 in repressing seed germination (Shi et al 2015).…”

Section: Introductionmentioning

confidence: 99%

PIF1 and RVE1 form a transcriptional feedback loop to control light‐mediated seed germination in Arabidopsis

Yang

Jiang

Jing

et al. 2020

JIPB

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The phytochrome B (phyB) photoreceptor plays a major role that inputs light signals to regulate seed dormancy and germination. PHYTOCHROME‐INTERACTING FACTOR1 (PIF1) is a key transcription factor repressing phyB‐mediated seed germination, while REVEILLE1 (RVE1) factor functions as a curial regulator in controlling both seed dormancy and germination. However, the relationship between the PIF1‐ and RVE1‐modulated signaling pathways remains mostly unknown. Here, we find that PIF1 physically interacts with RVE1. Genetic analysis indicates that RVE1 inhibition on seed germination requires PIF1; reciprocally, the repressive effect of PIF1 is partially dependent on RVE1. Strikingly, PIF1 and RVE1 directly bind to the promoter and activate the expression of each other. Furthermore, PIF1 and RVE1 coordinately regulate the transcription of many downstream genes involved in abscisic acid and gibberellin pathways. Moreover, PIF1 enhances the DNA‐binding ability and transcriptional repression activity of RVE1 in regulating GIBBERELLIN 3‐OXIDASE2, and RVE1 promotes PIF1's DNA‐binding ability in modulating ABSCISIC ACID‐INSENSITIVE3 expression. Thus, this study demonstrates that PIF1 and RVE1 form a transcriptional feedback loop that coordinately inhibits seed germination, providing a mechanistic understanding of how phyB‐mediated light signal is transduced to the seeds.

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KELCH F-BOX protein positively influences Arabidopsis seed germination by targeting PHYTOCHROME-INTERACTING FACTOR1

Cited by 61 publications

References 92 publications

Regulation of Photomorphogenic Development by Plant Phytochromes

Regulation of Photomorphogenic Development by Plant Phytochromes

Diverse and dynamic roles of F-box proteins in plant biology

PIF1 and RVE1 form a transcriptional feedback loop to control light‐mediated seed germination in Arabidopsis

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