The Roles of Environmental Factors in Regulation of Oxidative Stress in Plant

BioMed Research International, Journal Year: 2019, Volume and Issue: 2019, P. 1 - 11

Published: May 8, 2019

Exposure to a variety of environmental factors such as salinity, drought, metal toxicity, extreme temperature, air pollutants, ultraviolet-B (UV-B) radiation, pesticides, and pathogen infection leads subject oxidative stress in plants, which turn affects multiple biological processes via reactive oxygen species (ROS) generation. ROS include hydroxyl radicals, singlet oxygen, hydrogen peroxide the plant cells activates signaling pathways leading some changes physiological, biochemical, molecular mechanisms cellular metabolism. Excessive ROS, however, cause stress, state imbalance between production neutralization free radicals by antioxidants, resulting damage components including lipids, nucleic acids, metabolites, proteins, finally death plants. Thus, maintaining physiological level is crucial for aerobic organisms, relies on combined operation enzymatic nonenzymatic antioxidants. In order improve plants’ tolerance towards harsh environment, it vital reinforce comprehension antioxidant systems. this review, recent findings metabolism well antioxidative defense machinery are briefly updated. The latest differential regulation antioxidants at levels under adverse environment also discussed here.

Language: Английский

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Oxidative Stress and Antioxidant Metabolism under Adverse Environmental Conditions: a Review

The Botanical Review, Journal Year: 2020, Volume and Issue: 87(4), P. 421 - 466

Published: Dec. 1, 2020

Language: Английский

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The Role of Plant Growth-Promoting Bacteria in Alleviating the Adverse Effects of Drought on Plants

Biology, Journal Year: 2021, Volume and Issue: 10(6), P. 520 - 520

Published: June 11, 2021

Plant growth-promoting bacteria play an essential role in enhancing the physical, chemical and biological characters of soils by facilitating nutrient uptake water flow, especially under abiotic stress conditions, which are major constrains to agricultural development production. Drought is one most harmful perhaps severe problem facing sustainability, leading a shortage crop productivity. affects plant growth causing hormonal membrane stability perturbations, imbalance physiological disorders. Furthermore, drought causes remarkable decrease leaf numbers, relative content, sugar yield, root chlorophyll b ascorbic acid concentrations. However, concentrations total phenolic compounds, electrolyte leakage, lipid peroxidation, amounts proline, reactive oxygen species considerably increased because stress. This negative impact can be eliminated using (PGPB). Under application PGPB improve adjusting balance, maintaining status producing regulators. positively biochemical characteristics, resulting photosynthetic pigments acid. Conversely, leakage compounds decreased presence PGPB. The current review gives overview on plants pivotal mitigating effects antioxidant defense systems increasing yield sustainable agriculture.

Language: Английский

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miRNAs for crop improvement

Plant Physiology and Biochemistry, Journal Year: 2023, Volume and Issue: 201, P. 107857 - 107857

Published: June 24, 2023

Climate change significantly impacts crop production by inducing several abiotic and biotic stresses. The increasing world population, their food industrial demands require focused efforts to improve plants ensure sustainable production. Among various modern biotechnological tools, microRNAs (miRNAs) are one of the fascinating tools available for improvement. miRNAs belong a class small non-coding RNAs playing crucial roles in numerous biological processes. MiRNAs regulate gene expression post-transcriptional target mRNA degradation or translation repression. Plant have essential plant development stress tolerance. In this review, we provide propelling evidence from previous studies conducted around one-stop review progress made breeding stress-smart future plants. Specifically, summary reported genes improvement growth development, We also highlight miRNA-mediated engineering sequence-based technologies identification stress-responsive miRNAs.

Language: Английский

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GhWRKY207 improves drought tolerance through promoting the expression of GhCSD3 and GhFSD2 in Gossypium hirsutum

Plant Science, Journal Year: 2025, Volume and Issue: unknown, P. 112392 - 112392

Published: Jan. 1, 2025

Language: Английский

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Genome-wide identification and characterization of abiotic-stress responsive SOD (superoxide dismutase) gene family in Brassica juncea and B. rapa

BMC Genomics, Journal Year: 2019, Volume and Issue: 20(1)

Published: March 19, 2019

Abiotic stresses like drought, heat, cold and salinity cause major productivity loss in the rapeseed-mustard crops (Brassica). Major efforts have been made past to identify genes that provide resistance against such stresses. Superoxide dismutase (SOD) proteins, member of metallo-enzyme family play vital role protecting plants abiotic In present study, genome-wide analysis stress responsive SOD gene has done B. juncea rapa. A total 29 18 were identified rapa respectively chromosome location mapping indicated their wide distribution across genome. On basis domain composition, SODs phylogenetically classified into sub-groups which was also substantiated by structure sub-cellular locations proteins. Functional annotation Gene Ontology (GO) result corroborated cis-regulatory elements promoter region genes. Based on FPKM SRA data available for heat salt stress, we 14 10 respectively. The differential expression under drought abiotic-stress through quantitative Real Time PCR. We could help improving plant tolerance This first study describe juncea, results will laying basic ground future work cloning functional validation during leading Brassica crop improvement.

Language: Английский

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Genome-Wide Analysis and Expression Profile of Superoxide Dismutase (SOD) Gene Family in Rapeseed (Brassica napus L.) under Different Hormones and Abiotic Stress Conditions

Antioxidants, Journal Year: 2021, Volume and Issue: 10(8), P. 1182 - 1182

Published: July 25, 2021

Superoxide dismutase (SOD) is an important enzyme that acts as the first line of protection in plant antioxidant defense system, involved eliminating reactive oxygen species (ROS) under harsh environmental conditions. Nevertheless, SOD gene family was yet to be reported rapeseed (Brassica napus L.). Thus, a genome-wide investigation carried out identify genes. The present study recognized 31 BnSOD genes genome, including 14 BnCSDs, 11 BnFSDs, and six BnMSDs. Phylogenetic analysis revealed from other closely related were clustered into three groups based on binding domain with high bootstrap values. systemic exposed BnSODs experienced segmental duplications. Gene structure motif specified most displayed relatively well-maintained exon–intron configuration within same group. Moreover, we identified five hormones four stress- several light-responsive cis-elements promoters BnSODs. Thirty putative bna-miRNAs seven families also predicted, targeting 13 ontology annotation outcomes confirm role different stress stimuli, cellular oxidant detoxification processes, metal ion activities, activity, components. Twelve exhibited higher expression profiles numerous developmental tissues, i.e., root, leaf, stem, silique. qRT-PCR profiling showed eight (BnCSD1, BnCSD3, BnCSD14, BnFSD4, BnFSD5, BnFSD6, BnMSD2, BnMSD10) significantly up-regulated (ABA, GA, IAA, KT) abiotic (salinity, cold, waterlogging, drought) treatments. predicted 3D structures discovered comparable conserved protein structures. In short, our findings deliver foundation for additional functional investigations breeding programs.

Language: Английский

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ROS status and antioxidant enzyme activities in response to combined temperature and drought stresses in barley

Acta Physiologiae Plantarum, Journal Year: 2021, Volume and Issue: 43(8)

Published: July 6, 2021

Language: Английский

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Plant Salinity Stress Response and Nano-Enabled Plant Salt Tolerance

Frontiers in Plant Science, Journal Year: 2022, Volume and Issue: 13

Published: March 22, 2022

The area of salinized land is gradually expanding cross the globe. Salt stress seriously reduces yield and quality crops endangers food supply to meet demand increased population. mechanisms underlying nano-enabled plant tolerance were discussed, including (1) maintaining ROS homeostasis, (2) improving plant’s ability exclude Na + retain K , (3) production nitric oxide, (4) increasing α-amylase activities increase soluble sugar content, (5) decreasing lipoxygenase reduce membrane oxidative damage. possible commonly employed such as alleviating damage ion homeostasis highlighted. Further, role phytohormones molecular in salt discussed. Overall, this review paper aims help researchers from different field science nanoscience better understand new approaches address salinity issues agriculture.

Language: Английский

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Characterization of SOD and GPX Gene Families in the Soybeans in Response to Drought and Salinity Stresses

Antioxidants, Journal Year: 2022, Volume and Issue: 11(3), P. 460 - 460

Published: Feb. 25, 2022

Plant stresses causing accumulation of reactive oxidative species (ROS) are scavenged by effective antioxidant defense systems. Therefore, the present study performed genome-wide identification superoxide dismutase (SOD) and glutathione peroxidase (GPX) gene families in cultivated wild soybeans, 11 other legume species. We identified a total 101 95 genes SOD GPX, respectively, across thirteen The highest numbers SODs GPXs were (Glycine max) soja). A comparative phylogenetic revealed homology among soybeans relative to legumes. exon/intron structure, motif synteny blocks conserved both soybean According Ka/Ks, purifying selection played major evolutionary role these families, segmental duplication driving force for expansion. In addition, qRT-PCR analysis G. max soja GPX significant differential expression response oxidative, drought salinity root tissue. conclusion, our provides new insights evolution legumes, resources further functional characterization multiple stresses.

Language: Английский

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