Plants’ Response Mechanisms to Salinity Stress

Plants, Год журнала: 2023, Номер 12(12), С. 2253 - 2253

Опубликована: Июнь 8, 2023

Soil salinization is a severe abiotic stress that negatively affects plant growth and development, leading to physiological abnormalities ultimately threatening global food security. The condition arises from excessive salt accumulation in the soil, primarily due anthropogenic activities such as irrigation, improper land uses, overfertilization. presence of Na⁺, Cl-, other related ions soil above normal levels can disrupt cellular functions lead alterations essential metabolic processes seed germination photosynthesis, causing damage tissues even death worst circumstances. To counteract effects stress, plants have developed various mechanisms, including modulating ion homeostasis, compartmentalization export, biosynthesis osmoprotectants. Recent advances genomic proteomic technologies enabled identification genes proteins involved salt-tolerance mechanisms. This review provides short overview impact salinity on underlying mechanisms salt-stress tolerance, particularly salt-stress-responsive associated with these aims at summarizing recent our understanding tolerance providing key background knowledge for improving crops' which could contribute yield quality enhancement major crops grown under saline conditions or arid semiarid regions world.

Язык: Английский

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Dynamic regulation of DNA methylation and histone modifications in response to abiotic stresses in plants

Journal of Integrative Plant Biology, Год журнала: 2022, Номер 64(12), С. 2252 - 2274

Опубликована: Сен. 23, 2022

DNA methylation and histone modification are evolutionarily conserved epigenetic modifications that crucial for the expression regulation of abiotic stress-responsive genes in plants. Dynamic changes gene levels can result from modifications. In last two decades, how machinery regulates stress responses plants has been extensively studied. Here, based on recent publications, we review impact response to stresses such as drought, abscisic acid, high salt, extreme temperature, nutrient deficiency or toxicity, ultraviolet B exposure. We also roles mechanisms formation transgenerational memory. posit a better understanding underpinnings may facilitate design more stress-resistant -resilient crops, which is essential coping with global warming environments.

Язык: Английский

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Nanowonders in agriculture: Unveiling the potential of nanoparticles to boost crop resilience to salinity stress

The Science of The Total Environment, Год журнала: 2024, Номер 925, С. 171433 - 171433

Опубликована: Март 6, 2024

Язык: Английский

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Epigenetic regulation of abiotic stress responses in plants

Biochimica et Biophysica Acta (BBA) - General Subjects, Год журнала: 2024, Номер 1868(9), С. 130661 - 130661

Опубликована: Июнь 15, 2024

Язык: Английский

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Role of Epigenetics in Modulating Phenotypic Plasticity against Abiotic Stresses in Plants

International Journal of Genomics, Год журнала: 2022, Номер 2022, С. 1 - 13

Опубликована: Июнь 14, 2022

Plants being sessile are always exposed to various environmental stresses, and overcome these modifications at the epigenetic level can prove vital for their long-term survival. Epigenomics refers large-scale study of marks on genome, which include covalent histone tails (acetylation, methylation, phosphorylation, ubiquitination, small RNA machinery). Studies based epigenetics have evolved over years especially in understanding mechanisms transcriptional posttranscriptional levels plants against stimuli. Epigenomic changes through induced methylation specific genes that lead expression help stress conditions. Recent studies suggested epigenomics has a significant potential crop improvement plants. By induction modulation cellular processes like DNA modification, biogenesis noncoding RNAs, plant genome be activated achieving quicker response stresses. Epigenetic allow them adjust under varied stresses by modulating phenotypic plasticity same time ensure quality yield crops. The epigenome helps adapt during pre- postdevelopmental processes. variation different organisms exhibits variable responses. also occur sequentially genome. Various indicated environmentally stimulated epimutations produce responses differentially methylated regions (DMR) play major role management conditions Besides, it been observed cause closely associated with modifications. However, relationship between is still debatable. In this review, we will discussing factors modulate abiotic

Язык: Английский

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Plant transcriptional memory and associated mechanism of abiotic stress tolerance

Plant Physiology and Biochemistry, Год журнала: 2023, Номер 201, С. 107917 - 107917

Опубликована: Июль 27, 2023

Язык: Английский

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Echoes of a Stressful Past: Abiotic Stress Memory in Crop Plants towards Enhanced Adaptation

Agriculture, Год журнала: 2023, Номер 13(11), С. 2090 - 2090

Опубликована: Ноя. 2, 2023

Plants can develop stress memory as a response to various abiotic stresses, but the underlying mechanisms are not yet fully understood. Most of knowledge concerning development and inheritance in plants is primarily based on research model plant Arabidopsis. While shared exist across species, it crucial expand our understanding epigenetic regulation crops. Stress priming, or prior exposure mild stress, enhance plant’s adaptation future events memory. During undergo physiological, biochemical, molecular, changes that be transient maintained throughout their lifespan, some cases, these also inherited by offspring. In this review, we present current state priming-induced agronomically important crops towards resilience. The most prominent namely, heat, cold, salt, drought, waterlogging, highlighted relation cis-/trans-priming at intra-, inter-, transgenerational levels. cost for developing along with duration imprints fading discussed. This review particularly era climate change, which necessitates agricultural sustainability strategies.

Язык: Английский

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Effects of Salinity Stress on Growth and Physiological Parameters and Related Gene Expression in Different Ecotypes of Sesuvium portulacastrum on Hainan Island

Genes, Год журнала: 2023, Номер 14(7), С. 1336 - 1336

Опубликована: Июнь 25, 2023

We conducted a study to examine the growth and physiological changes in 12 different ecotypes of Sesuvium portulacastrum collected from Hainan Island China. These were subjected concentrations (0, 200, 400, 600 mmol/L) sodium chloride (NaCl) salt stress for 14 days. also analyzed expression metabolic genes related response. Under low stress, indicators such as plant height region K (0 mmol/L: 45% highest at 200 80%), internode length 0.38, 0.87, 400 0.25, 1.35), well leaf area, relative water content, fresh weight, dry weight exhibited an overall increasing trend with increase concentration. However, concentration increased, these showed decreasing trend. Proline malondialdehyde contents increased higher concentrations. When NaCl was mmol/L, MDA content leaves regions E (196.23%), F (94.28%), J (170.10%), (136.08%) compared control group, respectively. Most materials demonstrated significant decrease chlorophyll a, b, total group. Furthermore, ratio b (Rab) varied among materials. Using principal component analysis, we identified three (L Xinglong Village, Danzhou City; B Shuigoupo Lingshui County; Haidongfang Park, Dongfang City) that represented high, medium, tolerance levels, respectively, based on above indexes. To further investigate transcriptional level, employed qRT-PCR. The results SpP5CS1, SpLOX1, SpLOX1 concentrations, which corresponded accumulation proline SpCHL1a SpCHL1b did not exhibit consistent pattern. This contributes our understanding mechanism true halophyte S. portulacastrum, providing solid theoretical foundation research this field.

Язык: Английский

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To live or let die? Epigenetic adaptations to climate change—a review

Current Zoology, Год журнала: 2024, Номер 10(1)

Опубликована: Янв. 1, 2024

Anthropogenic activities are responsible for a wide array of environmental disturbances that threaten biodiversity. Climate change, encompassing temperature increases, ocean acidification, increased salinity, droughts, and floods caused by frequent extreme weather events, represents one the most significant alterations. These drastic challenges pose ecological constraints, with over million species expected to disappear in coming years. Therefore, organisms must adapt or face potential extinctions. Adaptations can occur not only through genetic changes but also non-genetic mechanisms, which often confer faster acclimatization wider variability ranges than their counterparts. Among these mechanisms epigenetics defined as study molecules perpetuate alternative gene activity states context same DNA sequence. Epigenetics has received attention past decades, epigenetic sensitive cues, epimutations spread populations mutations. Epimutations be neutral, deleterious, adaptative transmitted subsequent generations, making them crucial factors both long- short-term responses fluctuations, such climate change. In this review, we compile existing evidence involvement adaptation change discuss derived perspectives remaining field epigenetics.

Язык: Английский

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Insights into the Epigenetic Basis of Plant Salt Tolerance

International Journal of Molecular Sciences, Год журнала: 2024, Номер 25(21), С. 11698 - 11698

Опубликована: Окт. 31, 2024

The increasing salinity of agricultural lands highlights the urgent need to improve salt tolerance in crops, a critical factor for ensuring food security. Epigenetic mechanisms are pivotal plant adaptation stress. This review elucidates complex roles DNA methylation, histone modifications, variants, and non-coding RNAs fine-tuning gene expression response It emphasizes how heritable changes, which do not alter sequence but significantly impact phenotype, contribute this adaptation. methylation is notably prevalent under high-salinity conditions associated with changes that enhance resilience salt. Modifications histones, including both acetylation, directly linked regulation salt-tolerance genes. presence such as H2A.Z, altered stress, promoting environments. Additionally, RNAs, miRNAs lncRNAs, intricate regulatory network also underscores importance understanding these epigenetic developing stress memory enhancing tolerance.

Язык: Английский

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