Cell wall β-1,4-galactan regulated by the BPC1/BPC2-GALS1 module aggravates salt sensitivity in Arabidopsis thaliana

Yan, Jingwei; Liu, Ya; Yang, Lan; He, Huan; Huang, Yun; Fang, Lin; Scheller, Henrik Vibe; Jiang, Mingyi; Zhang, Aying

doi:10.1016/j.molp.2020.11.023

Cited by 66 publications

(53 citation statements)

References 64 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This process is transcriptionally regulated. BARLEY B RECOMBINANT/BASIC PENTACYSTEINE transcription factors BPC1/BPC2 repress the expression of GALS1 and positively regulate plant salt tolerance [ 118 ].…”

Section: Regulation Of Plant Response To Salt Stressmentioning

confidence: 99%

Regulation of Plant Responses to Salt Stress

Zhao

Zhang

Liu

et al. 2021

IJMS

551

290

View full text Add to dashboard Cite

Salt stress is a major environmental stress that affects plant growth and development. Plants are sessile and thus have to develop suitable mechanisms to adapt to high-salt environments. Salt stress increases the intracellular osmotic pressure and can cause the accumulation of sodium to toxic levels. Thus, in response to salt stress signals, plants adapt via various mechanisms, including regulating ion homeostasis, activating the osmotic stress pathway, mediating plant hormone signaling, and regulating cytoskeleton dynamics and the cell wall composition. Unraveling the mechanisms underlying these physiological and biochemical responses to salt stress could provide valuable strategies to improve agricultural crop yields. In this review, we summarize recent developments in our understanding of the regulation of plant salt stress.

show abstract

Section: Regulation Of Plant Response To Salt Stressmentioning

confidence: 99%

Regulation of Plant Responses to Salt Stress

Zhao

Zhang

Liu

et al. 2021

IJMS

551

290

View full text Add to dashboard Cite

show abstract

“…Except for positive role in enhancing plant salt stress tolerance, some enzymes also play negative roles in plant salt stress tolerance. The overexpression of Arabidopsis b-1,4-galactan synthase GALACTAN SYNTHASE 1 (GALS1) decreased Arabidopsis salt tolerance (Yan et al, 2021).…”

Section: Oscsld4 Plays a Positive Role In Enhancing Rice Salinity Str...mentioning

confidence: 99%

Cellulose synthase‐like protein OsCSLD4 plays an important role in the response of rice to salt stress by mediating abscisic acid biosynthesis to regulate osmotic stress tolerance

Zhao

Wang

et al. 2021

Plant Biotechnology Journal

View full text Add to dashboard Cite

Cell wall polysaccharide biosynthesis enzymes play important roles in plant growth, development and stress responses. The functions of cell wall polysaccharide synthesis enzymes in plant growth and development have been well studied. In contrast, their roles in plant responses to environmental stress are poorly understood. Previous studies have demonstrated that the rice cell wall cellulose synthase-like D4 protein (OsCSLD4) is involved in cell wall polysaccharide synthesis and is important for rice growth and development. This study demonstrated that the OsCSLD4 function-disrupted mutant nd1 was sensitive to salt stress, but insensitive to abscisic acid (ABA). The expression of some ABA synthesis and response genes was repressed in nd1 under both normal and salt stress conditions. Exogenous ABA can restore nd1-impaired salt stress tolerance. Moreover, overexpression of OsCSLD4 can enhance rice ABA synthesis gene expression, increase ABA content and improve rice salt tolerance, thus implying that OsCSLD4-regulated rice salt stress tolerance is mediated by ABA synthesis. Additionally, nd1 decreased rice tolerance to osmotic stress, but not ion toxic tolerance. The results from the transcriptome analysis showed that more osmotic stress-responsive genes were impaired in nd1 than salt stress-responsive genes, thus indicating that OsCSLD4 is involved in rice salt stress response through an ABAinduced osmotic response pathway. Intriguingly, the disruption of OsCSLD4 function decreased grain width and weight, while overexpression of OsCSLD4 increased grain width and weight. Taken together, this study demonstrates a novel plant salt stress adaptation mechanism by which crops can coordinate salt stress tolerance and yield.

show abstract

“…For example, salt stress induces the accumulation of β-1,4-galactan in root cell walls through the up-regulation the of galactan synthase 1 (GALS1) gene. Based on a genetic screening, two transcription factors basic pentacysteine 1 (BPC1) and BPC2 were identified that directly bind to the promoter of the GALS1 gene and repress its expression [28]. The expression of BPC1 and BPC2 genes is significantly reduced under salt stress.…”

Section: Transcriptional Regulation Of Cell Wall-associated Genes Under Salt Stressmentioning

confidence: 99%

“…The expression of BPC1 and BPC2 genes is significantly reduced under salt stress. The bpc1 bpc2 double mutant, in which the accumulation of β-1,4-galactan is elevated under salt stress compared with the wild type, exhibits increased salt tolerance [28]. Oryza sativa MULTIPASS (OsMPS) encodes an R2R3-type MYB transcription factor in rice.…”

Section: Transcriptional Regulation Of Cell Wall-associated Genes Under Salt Stressmentioning

confidence: 99%

Maintenance of Cell Wall Integrity under High Salinity

Liu

Zhang

Long

et al. 2021

IJMS

View full text Add to dashboard Cite

Cell wall biosynthesis is a complex biological process in plants. In the rapidly growing cells or in the plants that encounter a variety of environmental stresses, the compositions and the structure of cell wall can be dynamically changed. To constantly monitor cell wall status, plants have evolved cell wall integrity (CWI) maintenance system, which allows rapid cell growth and improved adaptation of plants to adverse environmental conditions without the perturbation of cell wall organization. Salt stress is one of the abiotic stresses that can severely disrupt CWI, and studies have shown that the ability of plants to sense and maintain CWI is important for salt tolerance. In this review, we highlight the roles of CWI in salt tolerance and the mechanisms underlying the maintenance of CWI under salt stress. The unsolved questions regarding the association between the CWI and salt tolerance are discussed.

show abstract

Cell wall β-1,4-galactan regulated by the BPC1/BPC2-GALS1 module aggravates salt sensitivity in Arabidopsis thaliana

Cited by 66 publications

References 64 publications

Regulation of Plant Responses to Salt Stress

Regulation of Plant Responses to Salt Stress

Cellulose synthase‐like protein OsCSLD4 plays an important role in the response of rice to salt stress by mediating abscisic acid biosynthesis to regulate osmotic stress tolerance

Maintenance of Cell Wall Integrity under High Salinity

Contact Info

Product

Resources

About