<i>Arabidopsis</i> small ubiquitin‐related modifier protease ASP1 positively regulates abscisic acid signaling during early seedling development

Wang, Qiongli; Qu, Gao-Ping; Kong, Xiangxiong; Yan, Yan; Li, Jigang; Jin, Jing Bo

doi:10.1111/jipb.12669

Cited by 26 publications

(21 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In spf1-1 , mutant plants ABI5 and MYB30 accumulate to greater levels than in WT. SPF1 transcription increases in ABA treated seeds, but not in seedlings (Wang et al, 2018).…”

Section: Role Of Sumo Proteases In Plant Hormonal Pathwaysmentioning

confidence: 99%

See 1 more Smart Citation

Dealing With Stress: A Review of Plant SUMO Proteases

Morrell

Sadanandom

2019

Front. Plant Sci.

View full text Add to dashboard Cite

The SUMO system is a rapid dynamic post-translational mechanism employed by eukaryotic cells to respond to stress. Plant cells experience hyperSUMOylation of substrates in response to stresses such as heat, ethanol, and drought. Many SUMOylated proteins are located in the nucleus, SUMOylation altering many nuclear processes. The SUMO proteases play two key functions in the SUMO cycle by generating free SUMO; they have an important role in regulating the SUMO cycle, and by cleaving SUMO off SUMOylated proteins, they provide specificity to which proteins become SUMOylated. This review summarizes the broad literature of plant SUMO proteases describing their catalytic activity, domains and structure, evolution, localization, and response to stress and highlighting potential new areas of research in the future.

show abstract

“…In spf1-1 , mutant plants ABI5 and MYB30 accumulate to greater levels than in WT. SPF1 transcription increases in ABA treated seeds, but not in seedlings (Wang et al, 2018).…”

Section: Role Of Sumo Proteases In Plant Hormonal Pathwaysmentioning

confidence: 99%

“…Transcription of the SUMO proteases may also react to stimulus—for example, SPF1 transcript levels increase in response to ABA (Wang et al, 2018). However, largely the transcriptional regulation and post translational modification of these proteins are not well understood.…”

Section: Future Researchmentioning

confidence: 99%

Dealing With Stress: A Review of Plant SUMO Proteases

Morrell

Sadanandom

2019

Front. Plant Sci.

View full text Add to dashboard Cite

show abstract

“…When the plant senses stress signals during periods of dehydration and osmotic stress, the endogenous ABA levels increase to promote stomatal closure, reducing the transpiration rate (Hirayama and Shinozaki, 2007;Cutler et al, 2010;Wu et al, 2019). ABA is not only involved in the response to various environmental challenges, including salinity, freezing, water deficit, wounding, and pathogen attack, but also plays a role in a wide range of developmental processes, such as seed germination, early seedling development, and reproduction (Finkelstein et al, 2002;Huang et al, 2008;Cutler et al, 2010;Cao et al, 2011;Hauser et al, 2011;Qi et al, 2018;Wang et al, 2018).…”

mentioning

confidence: 99%

The GIGANTEA-ENHANCED EM LEVEL Complex Enhances Drought Tolerance via Regulation of Abscisic Acid Synthesis

et al. 2020

View full text Add to dashboard Cite

Drought is one of the most critical environmental stresses limiting plant growth and crop productivity. The synthesis and signaling of abscisic acid (ABA), a key phytohormone in the drought stress response, is under photoperiodic control. GIGANTEA (GI), a key regulator of photoperiod-dependent flowering and the circadian rhythm, is also involved in the signaling pathways for various abiotic stresses. In this study, we isolated ENHANCED EM LEVEL (EEL)/basic Leu zipper 12, a transcription factor involved in ABA signal responses, as a GI interactor in Arabidopsis (Arabidopsis thaliana). The diurnal expression of 9-CIS-EPOXYCAROTENOID DIOXYGENASE 3 (NCED3), a rate-limiting ABA biosynthetic enzyme, was reduced in the eel, gi-1, and eel gi-1 mutants under normal growth conditions. Chromatin immunoprecipitation and electrophoretic mobility shift assays revealed that EEL and GI bind directly to the ABA-responsive element motif in the NCED3 promoter. Furthermore, the eel, gi-1, and eel gi-1 mutants were hypersensitive to drought stress due to uncontrolled water loss. The transcript of NCED3, endogenous ABA levels, and stomatal closure were all reduced in the eel, gi-1, and eel gi-1 mutants under drought stress. Our results suggest that the EEL-GI complex positively regulates diurnal ABA synthesis by affecting the expression of NCED3, and contributes to the drought tolerance of Arabidopsis.

show abstract

“…Interestingly, the stability of DREB2A is also increased by heat shock-induced SUMOylation of DREB2A, indicating a positive regulation of SUMO in heat tolerance [70,122]. SUMOylation of a potential target protein has been shown to suppress the function of ubiquitylation [123,124]. Hence, SUMOylation may tune the degradation of DREB2A in A recently identified 30 amino acid negative regulatory domain (NRD) adjacent to the ERF/AP2 DNA-binding domain of DREB2A is the site of posttranslational modification.…”

Section: Multiple Ups Routes Acting Upon Dreb2a-mediated Stress Tolermentioning

confidence: 99%

The Ubiquitin Switch in Plant Stress Response

Doroodian

Hua

2021

Plants

View full text Add to dashboard Cite

Ubiquitin is a 76 amino acid polypeptide common to all eukaryotic organisms. It functions as a post-translationally modifying mark covalently linked to a large cohort of yet poorly defined protein substrates. The resulting ubiquitylated proteins can rapidly change their activities, cellular localization, or turnover through the 26S proteasome if they are no longer needed or are abnormal. Such a selective modification is essential to many signal transduction pathways particularly in those related to stress responses by rapidly enhancing or quenching output. Hence, this modification system, the so-called ubiquitin-26S proteasome system (UPS), has caught the attention in the plant research community over the last two decades for its roles in plant abiotic and biotic stress responses. Through direct or indirect mediation of plant hormones, the UPS selectively degrades key components in stress signaling to either negatively or positively regulate plant response to a given stimulus. As a result, a tightly regulated signaling network has become of much interest over the years. The ever-increasing changes of the global climate require both the development of new crops to cope with rapid changing environment and new knowledge to survey the dynamics of ecosystem. This review examines how the ubiquitin can switch and tune plant stress response and poses potential avenues to further explore this system.

show abstract

Arabidopsis small ubiquitin‐related modifier protease ASP1 positively regulates abscisic acid signaling during early seedling development

Cited by 26 publications

References 52 publications

Dealing With Stress: A Review of Plant SUMO Proteases

Dealing With Stress: A Review of Plant SUMO Proteases

The GIGANTEA-ENHANCED EM LEVEL Complex Enhances Drought Tolerance via Regulation of Abscisic Acid Synthesis

The Ubiquitin Switch in Plant Stress Response

Contact Info

Product

Resources

About