CC-type glutaredoxin, OsGrx_C7 plays a crucial role in enhancing protection against salt stress in rice

Verma, Pankaj; Verma, Shikha; Tripathi, Rudra Deo; Pandey, Nalini; Chakrabarty, Debasis

doi:10.1016/j.jbiotec.2021.02.008

Cited by 20 publications

(8 citation statements)

References 55 publications

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“…Overexpression of OsGRX8 enhanced tolerance to various abiotic stresses such as salinity, osmotic and oxidative stress in transgenic Arabidopsis , while repression of OsGRX8 by RNAi in rice caused a dramatically seed germination inhibition under mannitol treatment [ 16 ]. A rice CC-type GRX, OsGRX_C7 plays a positive response in salt induced stress by regulating the expression of transports engaged in Na + homeostasis [ 17 ]. Moreover, OsGRX_C7 is also involving in arsenic tolerance by altering the transcript of NIPs [ 18 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

Role of cassava CC-type glutaredoxin MeGRXC3 in regulating sensitivity to mannitol-induced osmotic stress dependent on its nuclear activity

Ruan

Guo

et al. 2022

BMC Plant Biol

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Background We previously identified six drought-inducible CC-type glutaredoxins in cassava cultivars, however, less is known about their potential role in the molecular mechanism by which cassava adapted to abiotic stress. Results Herein, we investigate one of cassava drought-responsive CC-type glutaredoxins, namely MeGRXC3, that involved in regulation of mannitol-induced inhibition on seed germination and seedling growth in transgenic Arabidopsis. MeGRXC3 overexpression up-regulates several stress-related transcription factor genes, such as PDF1.2, ERF6, ORA59, DREB2A, WRKY40, and WRKY53 in Arabidopsis. Protein interaction assays show that MeGRXC3 interacts with Arabidopsis TGA2 and TGA5 in the nucleus. Eliminated nuclear localization of MeGRXC3 failed to result mannitol-induced inhibition of seed germination and seedling growth in transgenic Arabidopsis. Mutation analysis of MeGRXC3 indicates the importance of conserved motifs for its transactivation activity in yeast. Additionally, these motifs are also indispensable for its functionality in regulating mannitol-induced inhibition of seed germination and enhancement of the stress-related transcription factors in transgenic Arabidopsis. Conclusions MeGRXC3 overexpression confers mannitol sensitivity in transgenic Arabidopsis possibly through interaction with TGA2/5 in the nucleus, and nuclear activity of MeGRXC3 is required for its function.

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Section: Introductionmentioning

confidence: 99%

Role of cassava CC-type glutaredoxin MeGRXC3 in regulating sensitivity to mannitol-induced osmotic stress dependent on its nuclear activity

Ruan

Guo

et al. 2022

BMC Plant Biol

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“…Glutaredoxins ( GRXs ) are a class of oxidoreductase which are reduced by glutathione [ 33 , 34 ], and exert various functions in plants, such as regulation of [Fe-S] assembly, Krebs cycle, Calvin cycle and signaling pathway, plant response to phytohormones, etc. [ 35 ]. Previous studies demonstrated silencing the expression of GRXs genes in plants reduced tolerance to abiotic stress, whereas overexpression of GRXs genes exhibited an opposite function [ 36 – 38 ].…”

Section: Discussionmentioning

confidence: 99%

Application of RNA sequencing to understand the response of rice seedlings to salt-alkali stress

Ren

Fan

et al. 2023

BMC Genomics

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Background Salt-alkali stress represents one of the most stressful events with deleterious consequences for plant growth and crop productivity. Despite studies focusing on the effects of salt-alkali stress on morphology and physiology, its molecular mechanisms remain unclear. Here, we employed RNA-sequencing (RNA-seq) to understand how Na2CO3 stress inhibits rice seedling growth. Results Na2CO3 stress significantly inhibited the growth of rice seedlings. Through RNA-seq, many differentially expressed genes (DEGs) were shown to be potentially involved in the rice seedling response to salt-alkali stress. After 1-day and 5-day treatments, RNA-seq identified 1780 and 2315 DEGs in the Na2CO3-treated versus -untreated rice seedling shoots, respectively. According to the gene ontology enrichment and the Kyoto Encylopedia of Genes and Genomes annotation of DEGs, the growth-inhibition processes associated with salt-alkali stress involve a myriad of molecular events, including biosynthesis and metabolism, enzyme activity, and binding, etc. Conclusion Collectively, the transcriptome analyses in the present work revealed several potential key regulators of plant response to salt-alkali stress, and might pave a way to improve salt-alkali stress tolerance in rice.

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“…Glutaredoxin also play important role in stress tolerance through redox state of cell, redox dependent pathway regulation, and also improve nutrient uptake. In rice root, glutaredoxin improved arsenic ( Verma et al., 2020 ) and salinity ( Verma et al., 2021 ) stress tolerance. In Arabidopsis root, glutaredoxin improved nitrogen uptake and ammonium stress tolerance ( Patterson et al., 2016 ).…”

Section: Discussionmentioning

confidence: 99%

Chromosome groups 5, 6 and 7 harbor major quantitative trait loci controlling root traits in bread wheat (Triticum aestivum L.)

et al. 2023

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Identifying genomic regions for root traits in bread wheat can help breeders develop climate-resilient and high-yielding wheat varieties with desirable root traits. This study used the recombinant inbred line (RIL) population of Synthetic W7984 × Opata M85 to identify quantitative trait loci (QTL) for different root traits such as rooting depth (RD), root dry mass (RM), total root length (RL), root diameter (Rdia) and root surface areas (RSA1 for coarse roots and RSA2 for fine roots) under controlled conditions in a semi-hydroponic system. We detected 14 QTL for eight root traits on nine wheat chromosomes; we discovered three QTL each for RD and RSA1, two QTL each for RM and RSA2, and one QTL each for RL, Rdia, specific root length and nodal root number per plant. The detected QTL were concentrated on chromosome groups 5, 6 and 7. The QTL for shallow RD (Q.rd.uwa.7BL: Xbarc50) and high RM (Q.rm.uwa.6AS: Xgwm334) were validated in two independent F2 populations of Synthetic W7984 × Chara and Opata M85 × Cascade, respectively. Genotypes containing negative alleles for Q.rd.uwa.7BL had 52% shallower RD than other Synthetic W7984 × Chara population lines. Genotypes with the positive alleles for Q.rm.uwa.6AS had 31.58% higher RM than other Opata M85 × Cascade population lines. Further, we identified 21 putative candidate genes for RD (Q.rd.uwa.7BL) and 13 for RM (Q.rm.uwa.6AS); TraesCS6A01G020400, TraesCS6A01G024400 and TraesCS6A01G021000 identified from Q.rm.uwa.6AS, and TraesCS7B01G404000, TraesCS7B01G254900 and TraesCS7B01G446200 identified from Q.rd.uwa.7BL encoded important proteins for root traits. We found germin-like protein encoding genes in both Q.rd.uwa.7BL and Q.rm.uwa.6AS regions. These genes may play an important role in RM and RD improvement. The identified QTL, especially the validated QTL and putative candidate genes are valuable genetic resources for future root trait improvement in wheat.

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CC-type glutaredoxin, OsGrx_C7 plays a crucial role in enhancing protection against salt stress in rice

Cited by 20 publications

References 55 publications

Role of cassava CC-type glutaredoxin MeGRXC3 in regulating sensitivity to mannitol-induced osmotic stress dependent on its nuclear activity

Role of cassava CC-type glutaredoxin MeGRXC3 in regulating sensitivity to mannitol-induced osmotic stress dependent on its nuclear activity

Application of RNA sequencing to understand the response of rice seedlings to salt-alkali stress

Chromosome groups 5, 6 and 7 harbor major quantitative trait loci controlling root traits in bread wheat (Triticum aestivum L.)

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