Effect of seed priming with spermine/spermidine on transcriptional regulation of stress-responsive genes in salt-stressed seedlings of an aromatic rice cultivar

Paul, Saikat; Roychoudhury, Aryadeep

doi:10.1016/j.plgene.2017.05.007

Cited by 27 publications

(8 citation statements)

References 66 publications

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“…These observations can be explained in light of the involvement of GSH in T(SH)2) synthesis catalyzed with trypanothione synthetase [31] and the role of T(SH) 2 in H 2 O 2 detoxification, with simultaneous indirect synthesis of deoxyribonucleotide catalyzed with ribonucleotide reductases [31,32]. In agreement with our results, the SPS gene was upregulated in response to salt stress in Medicago truncatula [81], Gobindobhog rice [82], and Citrus aurantium [83]. Similar to our results, the upregulation of the RDS-M gene, accompanied with increase in lipid peroxidation, was recorded in Larix olgensis under drought stress [80].…”

Section: Discussionsupporting

confidence: 91%

Salt Priming as a Smart Approach to Mitigate Salt Stress in Faba Bean (Vicia faba L.)

Nasrallah

Atia

El-Maksoud

et al. 2022

Plants

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The present investigation aims to highlight the role of salt priming in mitigating salt stress on faba bean. In the absence of priming, the results reflected an increase in H2O2 generation and lipid peroxidation in plants subjected to 200 mM salt shock for one week, accompanied by a decline in growth, photosynthetic pigments, and yield. As a defense, the shocked plants showed enhancements in ascorbate peroxidase (APX), catalase (CAT), glutathione reductase (GR), peroxidase (POX), and superoxide dismutase (SOD) activities. Additionally, the salt shock plants revealed a significant increase in phenolics and proline content, as well as an increase in the expression levels of glutathione (GSH) metabolism-related genes (the L-ascorbate peroxidase (L-APX) gene, the spermidine synthase (SPS) gene, the leucyl aminopeptidase (LAP) gene, the aminopeptidase N (AP-N) gene, and the ribonucleo-side-diphosphate reductase subunit M1 (RDS-M) gene). On the other hand, priming with increasing concentrations of NaCl (50–150 mM) exhibited little significant reduction in some growth- and yield-related traits. However, it maintained a permanent alert of plant defense that enhanced the expression of GSH-related genes, proline accumulation, and antioxidant enzymes, establishing a solid defensive front line ameliorating osmotic and oxidative consequences of salt shock and its injurious effect on growth and yield.

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Section: Discussionsupporting

confidence: 91%

Salt Priming as a Smart Approach to Mitigate Salt Stress in Faba Bean (Vicia faba L.)

Nasrallah

Atia

El-Maksoud

et al. 2022

Plants

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“…The Spd treatment (1.0 mM) effectively reversed this response in all three cultivars of G. jamesonii reducing the MDA contents of white, pink, and yellow. This observation is in similarity to stress studies in rice [28], citrus [4], Zoysia grass [29], and bluegrass [24]. This might be due to the action of PAs which help maintain membrane integrity and prevent cellular leakage by decreasing the peroxidation of lipids by ROS, thereby decreasing the levels of accumulated MDA.…”

Section: Content Of Mda In Three Varieties Of G Jamesonii On Nacl And...supporting

confidence: 80%

Insights into the impact of spermidine in reducing salinity stress in Gerbera jamesonii

Uzma¹,

Talla²,

Mamidala³

2023

J App Biol Biotech

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The present study was carried out to investigate the role of spermidine (Spd) in alleviating salinity stress in an ornamental plant, Gerbera jamesonii cv Bolus ex Hook. f. From our laboratory studies, we could establish that G. jamesonii plants grown in a polyhouse are hugely exposed to salts due to repeated fertigation and differ in their sensitivity toward salt stress. In the present study, we have assessed changes in the salinity tolerance levels across G. jamesonii genotypes when treated with exogenous supplementation of Spd. The sodium chloride (NaCl) sensitive (white), moderately sensitive (pink), and tolerant (yellow) G. jamesonii varieties were subjected to 200 mM NaCl treatment followed by an exogenous foliar spray of Spd (1.0 mM). Our findings revealed that Spd treatment increased leaf growth, soluble protein, proline, chlorophyll content and lowered lipid peroxidation, and hydrogen peroxide accumulation. Enhanced enzyme activities of superoxide dismutase, catalase, ascorbate peroxidase, and glutathione reductase following treatment with Spd suggest its role in conferring salt tolerance in G. jamesonii genotypes. Supplementation of 1.0 mM Spd has drastically improved efficiency of photosynthesis by minimizing salt stress initiated cellular injury by scavenging highly reactive oxygen radicals.

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“…On the contrary, in case of roots, priming with spermidine and spermine increased BADH1 transcript accumulation in Nonabokra, while it decreased gene expression in IR-64 roots exposed to 75 mM NaCl [134]. Polyamine priming of salt stressed-seedlings likewise enhanced BADH1 expression in the shoots and roots of another salt-sensitive, aromatic rice cultivar, Gobindobhog [135]. All these results clearly show the cross-talk between PAs and GB-biosynthesis machinery in rice under salt stress.…”

Section: Polyaminesmentioning

confidence: 81%

Targeting Glycinebetaine for Abiotic Stress Tolerance in Crop Plants: Physiological Mechanism, Molecular Interaction and Signaling

Hasanuzzaman¹,

Banerjee²,

Bhuyan³

et al. 2019

Phyton

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In the era of climate change, abiotic stresses (e.g., salinity, drought, extreme temperature, flooding, metal/metalloid(s), UV radiation, ozone, etc.) are considered as one of the most complex environmental constraints that restricts crop production worldwide. Introduction of stress-tolerant crop cultivars is the most auspicious way of surviving this constraint, and to produce these types of tolerant crops. Several bioengineering mechanisms involved in stress signaling are being adopted in this regard. One example of this kind of manipulation is the osmotic adjustment. The quarternary ammonium compound glycinebetaine (GB), also originally referred to as betaine is a methylated glycine derivative. Among the betaines, GB is the most abundant one in plants, which is mostly produced in response to dehydration caused by different abiotic stresses like drought, salinity, and extreme temperature. Glycinebetaine helps in decreased accumulation and detoxification of ROS, thereby restoring photosynthesis and reducing oxidative stress. It takes part in stabilizing membranes and macromolecules. It is also involved in the stabilization and protection of photosynthetic components, such as ribulose-1, 5-bisphosphate carboxylase/oxygenase, photosystem II and quarternary enzyme and protein complex structures under environmental stresses. Glycinebetaine was found to perform in chaperone-induced protein disaggregation. In addition, GB can confer stress tolerance in very low concentrations, and it acts in activating defense responsive genes with stress protection. Recently, field application of GB has also shown protective effects against environmental adversities increasing crop yield and quality. In this review, we will focus on the role of GB in conferring abiotic stress tolerance and the possible ways to engineer GB biosynthesis in plants.

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Effect of seed priming with spermine/spermidine on transcriptional regulation of stress-responsive genes in salt-stressed seedlings of an aromatic rice cultivar

Cited by 27 publications

References 66 publications

Salt Priming as a Smart Approach to Mitigate Salt Stress in Faba Bean (Vicia faba L.)

Salt Priming as a Smart Approach to Mitigate Salt Stress in Faba Bean (Vicia faba L.)

Insights into the impact of spermidine in reducing salinity stress in Gerbera jamesonii

Targeting Glycinebetaine for Abiotic Stress Tolerance in Crop Plants: Physiological Mechanism, Molecular Interaction and Signaling

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