Chilling-induced oxidative stress and polyamines regulatory role in two wheat varieties

Kader, Dina Z. Abdel; Saleh, Amal; Elmeleigy, Sayed A.; Dosoky, Noura S.

doi:10.1016/s1658-3655(12)60034-x

Cited by 24 publications

(9 citation statements)

References 72 publications

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“…Xu et al [36] found that priming improved the chilling tolerance in tobacco during seed germination and seedling growth by the activation of the antioxidant system in the plant tissues. In the current study, the results are consistent with those revealed by Kader et al [29] who demonstrated increased oxidative damage in wheat due to excessive generation of hydrogen peroxide due to chilling stress. AsA proved effective in improving the TAC (increasing it by 2 folds and decreasing TOC to the half, minimizing the oxidative damage in the present study (Figure 3).…”

Section: Oxidative Damage and Antioxidant Capacitysupporting

confidence: 93%

“…Under low temperature, disturbance in seedling morphology is a secondary expression of chilling-induced damage to cell organelles and its interference with key physiological processes [8]. Chilling stress might have reduced the growth of the seedling by suppressing cell elongation and division or/and metabolic imbalance in plant tissues [29].…”

Section: Discussionmentioning

confidence: 99%

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Exogenous Ascorbic Acid Induced Chilling Tolerance in Tomato Plants Through Modulating Metabolism, Osmolytes, Antioxidants, and Transcriptional Regulation of Catalase and Heat Shock Proteins

Elkelish

Qari

Mazrou

et al. 2020

Plants

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Chilling, a sort of cold stress, is a typical abiotic ecological stress that impacts the development as well as the growth of crops. The present study was carried to investigate the role of ascorbic acid root priming in enhancing tolerance of tomato seedlings against acute chilling stress. The treatments included untreated control, ascorbic acid-treated plants (AsA; 0.5 mM), acute chilling-stressed plants (4 °C), and chilling stressed seedlings treated by ascorbic acid. Exposure to acute chilling stress reduced growth in terms of length, fresh and dry biomass, pigment synthesis, and photosynthesis. AsA was effective in mitigating the injurious effects of chilling stress to significant levels when supplied at 0.5 mM concentrations. AsA priming reduced the chilling mediated oxidative damage by lowering the electrolyte leakage, lipid peroxidation, and hydrogen peroxide. Moreover, up regulating the activity of enzymatic components of the antioxidant system. Further, 0.5 mM AsA proved beneficial in enhancing ions uptake in normal and chilling stressed seedlings. At the gene expression level, AsA significantly lowered the expression level of CAT and heat shock protein genes. Therefore, we theorize that the implementation of exogenous AsA treatment reduced the negative effects of severe chilling stress on tomato.

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Section: Oxidative Damage and Antioxidant Capacitysupporting

confidence: 93%

Section: Discussionmentioning

confidence: 99%

Exogenous Ascorbic Acid Induced Chilling Tolerance in Tomato Plants Through Modulating Metabolism, Osmolytes, Antioxidants, and Transcriptional Regulation of Catalase and Heat Shock Proteins

Elkelish

Qari

Mazrou

et al. 2020

Plants

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“…Thereafter, Rubisco degradation products appear in the vacuoles (178). This process is important in young (336) as well as senescing leaves (172,247,306). However, if Rubisco breakdown is blocked by the constitutive ectopic expression of a Cys proteinase inhibitor, then the protein accumulates and activity is increased during stress and natural senescence, suggesting that the Rubisco turnover process has feedback mechanisms related to the reversible redox modulation of Cys residues (336).…”

Section: Processing Of Oxidized Proteinsmentioning

confidence: 99%

Redox Regulation in Photosynthetic Organisms: Signaling, Acclimation, and Practical Implications

Foyer

Noctor

2009

Antioxidants & Redox Signaling

1,203

831

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Reactive oxygen species (ROS) have multifaceted roles in the orchestration of plant gene expression and gene-product regulation. Cellular redox homeostasis is considered to be an "integrator" of information from metabolism and the environment controlling plant growth and acclimation responses, as well as cell suicide events. The different ROS forms influence gene expression in specific and sometimes antagonistic ways. Low molecular antioxidants (e.g., ascorbate, glutathione) serve not only to limit the lifetime of the ROS signals but also to participate in an extensive range of other redox signaling and regulatory functions. In contrast to the low molecular weight antioxidants, the "redox" states of components involved in photosynthesis such as plastoquinone show rapid and often transient shifts in response to changes in light and other environmental signals. Whereas both types of "redox regulation" are intimately linked through the thioredoxin, peroxiredoxin, and pyridine nucleotide pools, they also act independently of each other to achieve overall energy balance between energy-producing and energy-utilizing pathways. This review focuses on current knowledge of the pathways of redox regulation, with discussion of the somewhat juxtaposed hypotheses of "oxidative damage" versus "oxidative signaling," within the wider context of physiological function, from plant cell biology to potential applications.

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“…In the cassava genome, Manes.04G135000 is annotated as oxidative stress 3. Low-temperature/chilling-induced oxidative stress has been reported in wheat cultivars [60]. Thus far, there are no annotated and characterized oxidative stress-responsive cassava lncRNAs.…”

Section: Functional Analysis Of Potential Novel Lncrnas Involved In Cmentioning

confidence: 99%

Genomic and Transcriptomic Analysis Identified Novel Putative Cassava lncRNAs Involved in Cold and Drought Stress

Suksamran

Saithong

Thammarongtham

et al. 2020

Genes

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Long non-coding RNAs (lncRNAs) play important roles in the regulation of complex cellular processes, including transcriptional and post-transcriptional regulation of gene expression relevant for development and stress response, among others. Compared to other important crops, there is limited knowledge of cassava lncRNAs and their roles in abiotic stress adaptation. In this study, we performed a genome-wide study of ncRNAs in cassava, integrating genomics- and transcriptomics-based approaches. In total, 56,840 putative ncRNAs were identified, and approximately half the number were verified using expression data or previously known ncRNAs. Among these were 2229 potential novel lncRNA transcripts with unmatched sequences, 250 of which were differentially expressed in cold or drought conditions, relative to controls. We showed that lncRNAs might be involved in post-transcriptional regulation of stress-induced transcription factors (TFs) such as zinc-finger, WRKY, and nuclear factor Y gene families. These findings deepened our knowledge of cassava lncRNAs and shed light on their stress-responsive roles.

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Chilling-induced oxidative stress and polyamines regulatory role in two wheat varieties

Cited by 24 publications

References 72 publications

Exogenous Ascorbic Acid Induced Chilling Tolerance in Tomato Plants Through Modulating Metabolism, Osmolytes, Antioxidants, and Transcriptional Regulation of Catalase and Heat Shock Proteins

Exogenous Ascorbic Acid Induced Chilling Tolerance in Tomato Plants Through Modulating Metabolism, Osmolytes, Antioxidants, and Transcriptional Regulation of Catalase and Heat Shock Proteins

Redox Regulation in Photosynthetic Organisms: Signaling, Acclimation, and Practical Implications

Genomic and Transcriptomic Analysis Identified Novel Putative Cassava lncRNAs Involved in Cold and Drought Stress

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