SES1 positively regulates heat stress resistance in Arabidopsis

Guan, Peiyan; Wang, Jun; Xie, Chen; Wu, Changai; Yang, Guodong; Ke, Yan; Zhang, Shizhong; Zheng, Chengchao; Huang, Jinguang

doi:10.1016/j.bbrc.2019.04.015

Cited by 7 publications

(6 citation statements)

References 54 publications

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“…Sensitivity to Salt 1 (SES1) was identified in a screening looking for mutants sensitive to salt and has been found to alleviate heat stress and salt stress in plants at the same time it acts as an ER molecular chaperone (Guan et al, 2018(Guan et al, , 2019. Mutant plants on ses1 exhibit a higher expression of ER chaperones and other proteostasis related components under salt and heat stress conditions compared to wild type plants, but in neither case, the overexpression of this gene confers a higher tolerance to these stresses to plants (Guan et al, 2018(Guan et al, , 2019. It also contains an ERSE-L-like element on its promoter region, which was proven to be able to bind to bZIP17 (Guan et al, 2018) and bZIP28 (Guan et al, 2019), indicating that bZIP17 and bZIP28 could be responsible for SES1 expression during salt and heat stress, respectively.…”

Section: Other Endoplasmic Reticulum Chaperones and Co-chaperones Involved In Abiotic Stressmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Mutant plants on ses1 exhibit a higher expression of ER chaperones and other proteostasis related components under salt and heat stress conditions compared to wild type plants, but in neither case, the overexpression of this gene confers a higher tolerance to these stresses to plants ( Guan et al, 2018 , 2019 ). It also contains an ERSE-L-like element on its promoter region, which was proven to be able to bind to bZIP17 ( Guan et al, 2018 ) and bZIP28 ( Guan et al, 2019 ), indicating that bZIP17 and bZIP28 could be responsible for SES1 expression during salt and heat stress, respectively. An attractive proposal is that a heterodimer formed by bZIP17 and bZIP28 could potentially bind to SES1 and activate its expression under abiotic stress conditions ( Guan et al, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

“…It also contains an ERSE-L-like element on its promoter region, which was proven to be able to bind to bZIP17 ( Guan et al, 2018 ) and bZIP28 ( Guan et al, 2019 ), indicating that bZIP17 and bZIP28 could be responsible for SES1 expression during salt and heat stress, respectively. An attractive proposal is that a heterodimer formed by bZIP17 and bZIP28 could potentially bind to SES1 and activate its expression under abiotic stress conditions ( Guan et al, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

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The Endoplasmic Reticulum Role in the Plant Response to Abiotic Stress

Reyes-Impellizzeri

Moreno

2021

Front. Plant Sci.

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The endoplasmic reticulum (ER) is the organelle where one third of the proteins of a cell are synthetized. Several of these proteins participate in the signaling and response of cells, tissues, or from the organism to the environment. To secure the proper synthesis and folding of these proteins, or the disposal of unfolded or misfolded proteins, the ER has different mechanisms that interact and regulate each other. These mechanisms are known as the ER quality control (ERQC), ER-associated degradation (ERAD) and the unfolded protein response (UPR), all three participants of the maintenance of ER protein homeostasis or proteostasis. Given the importance of the client proteins of these ER mechanisms in the plant response to the environment, it is expected that changes or alterations on their components have an impact on the plant response to environmental cues or stresses. In this mini review, we focus on the impact of the alteration of components of ERQC, ERAD and UPR in the plant response to abiotic stresses such as drought, heat, osmotic, salt and irradiation. Also, we summarize findings from recent publications looking for a connection between these processes and their possible client(s) proteins. From this, we observed that a clear connection has been established between the ERAD and UPR mechanisms, but evidence that connects ERQC components to these both processes or their possible client(s) proteins is still lacking. As a proposal, we suggest the use of proteomics approaches to uncover the identity of these proteins and their connection with ER proteostasis.

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Section: Other Endoplasmic Reticulum Chaperones and Co-chaperones Involved In Abiotic Stressmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The Endoplasmic Reticulum Role in the Plant Response to Abiotic Stress

Reyes-Impellizzeri

Moreno

2021

Front. Plant Sci.

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“…Previous studies focused on low potassium and NaCl stress, but the molecular mechanism underlying high KCl stress is still limited. Prior studies reported that SENSITIVE TO SALT1 ( SES1 ) encodes an ER-localized molecular chaperone and plays important roles in salt and heat stress ( Guan et al, 2018 ; Guan et al, 2019 ). The ses1-1 is an EMS-induced mutant with a G-to-A transition at nucleotide 217 within the coding region of AT4G29520 and the ses1-2 is a T-DNA insertion mutant (GABI_944F02).…”

Section: Introductionmentioning

confidence: 99%

SES1 is vital for seedling establishment and post-germination growth under high-potassium stress conditions in Arabidopsis thaliana

Guan

Xie

Zhao

et al. 2022

PeerJ

Self Cite

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Background The potassium ion (K+) plays an important role in maintaining plant growth and development, while excess potassium in the soil can cause stress to plants. The understanding of the molecular mechanism of plant’s response to high KCl stress is still limited. Methods At the seed stage, wild type (WT) and SENSITIVE TO SALT1 (SES1) mutants were exposed to different concentrations of potassium treatments. Tolerance was assayed as we compared their performances under stress using seedling establishment rate and root length. Na+content, K+content, and K+/Na+ ratio were determined using a flame atomic absorption spectrometer. In addition, the expressions of KCl-responding genes and ER stress-related genes were also detected and analyzed using qRT-PCR. Results SES1 mutants exhibited seedling establishment defects under high potassium concentration conditions and exogenous calcium partially restored the hypersensitivity phenotype of ses1 mutants. The expression of some K+ transporter/channel genes were higher in ses1-2, and the ratio of potassium to sodium (K+/Na+) in ses1-2 roots decreased after KCl treatment compared with WT. Further analysis showed that the ER stress marker genes were dramatically induced by high K+ treatment and much higher expression levels were detected in ses1-2, indicating ses1-2 suffers a more serious ER stress than WT, and ER stress may influence the seedling establishment of ses1-2 under high KCl conditions. Conclusion These results strongly indicate that SES1 is a potassium tolerance relevant molecule that may be related to maintaining the seedling K+/Na+ balance under high potassium conditions during seedling establishment and post-germination growth. Our results will provide a basis for further studies on the biological roles of SES1 in modulating potassium uptake, transport, and adaptation to stress conditions.

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MaizeHEAT UP-REGULATED GENE 1plays vital roles in heat stress tolerance

Xie

Liu

et al. 2022

Journal of Experimental Botany

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Increasing temperature is one of the major threats to global maize growth and yield. Under heat stress condition, the intracellular protein homeostasis is seriously disturbed, leading to accumulation of abnormally folded proteins especially in the endoplasmic reticulum (ER). Molecular chaperones are vital players in preventing protein aggregation and in renaturation process. However, heat stress tolerance associated chaperones are not well documented in maize. Here, we characterized the biological roles of Heat Up-regulated Gene 1 (ZmHUG1) in maize. ZmHUG1 encodes a thermo inducible holdase type molecular chaperone localized in the ER. Knockout mutant of ZmHUG1 exhibited remarkably enhanced sensitivity to heat stress. Accordingly, much severe ER stress occurred in the zmhug1 mutant under high temperature treatment. Maize Prenylated Rab Acceptor 1.C1 (ZmPRA1.C1) was identified as a client of ZmHUG1 and heat induced aggregation of ZmPRA1.C1 was obviously accelerated in zmhug1 mutant. Furthermore, the expression of ZmHUG1 was rapidly transactivated by ER stress sensor basic leucine zipper domain 60 (bZIP60) when heat stress occurred. This study reveals a ZmHUG1 based thermo protective mechanism in maize.

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SES1 positively regulates heat stress resistance in Arabidopsis

Cited by 7 publications

References 54 publications

The Endoplasmic Reticulum Role in the Plant Response to Abiotic Stress

The Endoplasmic Reticulum Role in the Plant Response to Abiotic Stress

SES1 is vital for seedling establishment and post-germination growth under high-potassium stress conditions in Arabidopsis thaliana

MaizeHEAT UP-REGULATED GENE 1plays vital roles in heat stress tolerance

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