Drought Tolerance in Plants: Physiological and Molecular Responses

Plants, Journal Year: 2024, Volume and Issue: 13(21), P. 2962 - 2962

Published: Oct. 23, 2024

Drought, a significant environmental challenge, presents substantial risk to worldwide agriculture and the security of food supplies. In response, plants can perceive stimuli from their environment activate defense pathways via various modulating networks cope with stress. Drought tolerance, multifaceted attribute, be dissected into distinct contributing mechanisms factors. Osmotic stress, dehydration dysfunction plasma endosome membranes, loss cellular turgidity, inhibition metabolite synthesis, energy depletion, impaired chloroplast function, oxidative stress are among most critical consequences drought on plant cells. Understanding intricate interplay these physiological molecular responses provides insights adaptive strategies employ navigate through Plant cells express withstand reverse effects These include osmotic adjustment preserve turgor, synthesis protective proteins like dehydrins, triggering antioxidant systems counterbalance A better understanding tolerance is crucial for devising specific methods improve crop resilience promote sustainable agricultural practices in environments limited water resources. This review explores employed by address challenges

Language: Английский

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Insights into Salinity Tolerance in Wheat

Genes, Journal Year: 2024, Volume and Issue: 15(5), P. 573 - 573

Published: April 29, 2024

Salt stress has a detrimental impact on food crop production, with its severity escalating due to both natural and man-made factors. As one of the most important crops, wheat is susceptible salt stress, resulting in abnormal plant growth reduced yields; therefore, damage from should be great concern. Additionally, utilization land coastal areas warrants increased attention, given diminishing supplies fresh water arable land, demand for wheat. A comprehensive understanding physiological molecular changes under can offer insights into mitigating adverse effects In this review, we summarized genes mechanisms involved ion transport, signal transduction, enzyme hormone regulation, response based processes Then, surveyed latest progress improving tolerance through breeding, exogenous applications, microbial pathways. Breeding efficiency improved combination gene editing multiple omics techniques, which fundamental strategy dealing stress. Possible challenges prospects process were also discussed.

Language: Английский

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WRKY Transcription Factor Responses and Tolerance to Abiotic Stresses in Plants

Published: June 3, 2024

Plants are subjected to abiotic stresses throughout their developmental period. Abiotic include drought, salt, heat, cold, heavy metals, nutritional element and oxidative stresses. Improving plant response various environmental is critical for survival perpetuation. The WRKY transcription factors have special structure (WRKY structural domains), which enable different transcriptional regulatory functions. can not only regulate growth development by regulating phytohormone signalling pathways, but also promote or suppress the expression of downstream genes binding W-box [TGACCA/TGACCT] in promoters target genes. In addition, interact with other families defence responses stresses, self-regulate recognizing W-boxes own However, recent years, research reviews on roles higher plants scarce shallow. this review, we focus classification factors, as well identification molecular mechanisms involved improve tolerance ability stress look forward future directions, a view providing theoretical support genetic improvement crop tolerance.

Language: Английский

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WRKY Transcription Factor Responses and Tolerance to Abiotic Stresses in Plants

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(13), P. 6845 - 6845

Published: June 21, 2024

Plants are subjected to abiotic stresses throughout their developmental period. Abiotic include drought, salt, heat, cold, heavy metals, nutritional elements, and oxidative stresses. Improving plant responses various environmental is critical for survival perpetuation. WRKY transcription factors have special structures (WRKY structural domains), which enable the different transcriptional regulatory functions. can not only regulate stress growth development by regulating phytohormone signalling pathways but also promote or suppress expression of downstream genes binding W-box [TGACCA/TGACCT] in promoters target genes. In addition, interact with other families defence self-regulate recognising W-boxes own However, recent years, research reviews on roles higher plants been scarce shallow. this review, we focus structure classification factors, as well identification molecular mechanisms involved response stresses, improve tolerance ability under stress, look forward future directions, a view providing theoretical support genetic improvement crop tolerance.

Language: Английский

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Metal transport proteins and transcription factor networks in plant responses to cadmium stress

Plant Cell Reports, Journal Year: 2024, Volume and Issue: 43(9)

Published: Aug. 17, 2024

Language: Английский

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Regulatory mechanism analysis of signal transduction genes during rapeseed (Brassica napus L.) germination under aluminum stress using WGCNA combination with QTL

Frontiers in Plant Science, Journal Year: 2025, Volume and Issue: 16

Published: Jan. 31, 2025

As soil becomes more acidic, aluminum toxicity has emerged as a key issue impacting seed germination and crop productivity in such environments. Therefore, it is urgent to investigate the mechanism of influence stress on germination. In this study, we focused one major bioenergy crops-rapeseed. Seeds aluminum-sensitive (S) aluminum-resistant (R) lines screened from recombinant inbred (RILs) population rapeseed were treated with 80 µg·ml-1 AlCl3 (ST, RT). Purified water served control (SC, RC). On 3rd, 5th, 7th day after treatment, root tissue was collected for transcriptome sequencing. Utilizing MapMan software, genes showing differential expression S R assigned signaling pathway, resulting identification 1036 genes. By weighted gene co-expression network analysis (WGCNA), five co-expressed modules associated discovered. A total 332 candidate by combining related signal transduction pathways module hub Among them, 26 located quantitative trait loci (QTL) confidence intervals germination-related traits under stress, primarily distributed 11 QTL regions, qRDW-A09-1, qRDW-A10-1 qRGV-A01-2, they relative length (RRL), dry weight (RDW), vigor (RGV) bud (RBL). The roles included transcription regulation, protein production, redox processes, hormone signaling, cell wall alteration, calcium-based transmission. Compared line, line exhibited quicker stronger activation transduction, suggesting that responsive stress. This research offers an empirical basis identifying varieties investigating molecular regulation tolerance during

Language: Английский

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Combining Physiology and Transcriptome to Reveal Mechanisms of Hosta ‘Golden Cadet’ in Response to Alkali Stress

Plants, Journal Year: 2025, Volume and Issue: 14(4), P. 593 - 593

Published: Feb. 15, 2025

As an ornamentally and medicinally worthy plant, Hosta plantaginea (Lam.) Aschers. has the adapted capacity to survive cold temperate monsoon climates in Northeastern China. However, its use is limited by soil alkalization of urban gardens. Our pre-experiment found that ‘Golden Cadet’ potential be alkali-tolerant. Hence, tissue-cultured seedlings were used as experimental material. Its related growth, physiology, transcripts examined reveal molecular mechanism response alkali stress. The results show development was affected In comparison with control, malondialdehyde (MDA) content increased 4.28-fold at 24th hour, superoxide dismutase (SOD) activity 49% 6th peroxidase (POD) soluble sugar (SS) 67% 30% 12th respectively. RNA-seq analysis revealed gene expressions 0 h, 6 12 21 h 48 differed after 200 mmol/L NaHCO3 treatment. During under stress, 2366 differentially expressed genes found. transcription factors MYB, AP2/ERF, WRKY activated genes. KEGG phytohormone signaling pathways, starch sucrose metabolism, phenylpropane production summary, can reduce membrane damage improving osmoregulation antioxidant capacity, increase regulate biosynthesis activating inducing signaling, mitigating effects toxicity. These findings guide investigation into tolerance plants, screening genes, selecting breeding novel alkali-tolerant cultivars.

Language: Английский

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Genome-Wide Identification and Expression of the AP2/ERF Gene Family in Morus notabilis

Forests, Journal Year: 2024, Volume and Issue: 15(4), P. 697 - 697

Published: April 13, 2024

The AP2/ERF gene family, referring to an exclusive class of transcription factors unique plants, is involved in various biological processes, including plant growth and responses environmental stresses like high salt drought. In this study, the M. notabilis was comprehensively identified bioinformatically analyzed based on genomic data notabilis. 106 members MnAP2/ERF family were genome categorized into five subfamilies: ERF, AP2, DREB, RAV, Soloist, with ERF subfamily representing 80.19% total. observed be distributed six chromosomes Members exhibited obvious differences amino acid number, molecular weight, isoelectric point, other properties. Approximately 68.87% proteins acidic, all exhibiting hydrophilic characteristics. Differences conserved sequences arrangement AP2 domains among distinct subfamilies, genes same sharing similar domain compositions. There 47 without untranslated regions 44 two regions. upstream functions promoters concentrated light reactions hormones. Evolutionarily, significant structural identified, 28 could interact each other. Moreover, 35 22 fragment repeat events, 55 84 AtAP2/ERF showed collinearity. expression significantly different parts, indicating that these physiological activities. These results established a theoretical foundation for investigating functional evolutionary aspects notabilis, as well exploring root morphogenesis Additionally, study contributes basis improvement cultivar stress resistance

Language: Английский

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Citrus transcription factor CsERF1 is involved in the response to citrus tristeza disease

Frontiers in Plant Science, Journal Year: 2025, Volume and Issue: 15

Published: Jan. 14, 2025

Citrus tristeza virus (CTV) is a threat to the citrus production and causes severe economic losses industry. Ethylene response factors (ERFs) play important roles in plant growth stress responses. Although ERF genes have been widely studied model plants, little known about their role biological responses fruit trees, such as citrus. CsERF1 belongs AP2/ERF transcription factor family. To determine of on CTV resistance effects exongenous hormone application citrus, expression related was quantitatively analyzed by quantitative reverse polymerase chain reaction (RT-qPCR) this study. The profile showed that level roots significantly lower under infection than healthy while stems increased. responded exogenous salicylic acid (SA) methyl jasmonate (MeJA) treatments. titer RNAi-CsERF1 transgenic sweet orange plants Furthermore, CsERF1-overexpressing exhibited differential involved jasmonic (JA) SA signaling. These results suggest mediates regulating JA signaling pathways. study provide new clues defence against CTV. It great significance create germplasm resources resistant recession disease.

Language: Английский

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Molecular Mechanisms of Cold Stress Response in Cotton: Transcriptional Reprogramming and Genetic Strategies for Tolerance

Plant Science, Journal Year: 2025, Volume and Issue: unknown, P. 112390 - 112390

Published: Jan. 1, 2025

Language: Английский

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