Physiology and Molecular Biology of Plants最新文献

{"title":"Thyme and cumin eones: a safe and effective strategy for controlling <i>Alternaria radicina</i> in coriander, enhancing growth, and reducing cytotoxicity.","authors":"Seham M A El-Gamal, Ehsan M Rashad, WesamEldin I A Saber, Abdulaziz A Al-Askar, Yosra A Helmy, Khalid M Ghoneem, Amira A Ibrahim","doi":"10.1007/s12298-025-01650-x","DOIUrl":"10.1007/s12298-025-01650-x","url":null,"abstract":"<p><p>To investigate the potential of thyme and cumin essential oil nanoemulsions (EONEs) for controlling <i>Alternaria radicina</i>, a newly emerged fungal disease of coriander, this study explored their efficacy and impact on plant growth. The use of EONEs represents a novel approach for simultaneous disease management and growth promotion, but research on this topic is limited. This study is the first to evaluate EONEs for controlling <i>A. radicina</i> in coriander. Foliar application of thyme and cumin EOs resulted in significant in vitro fungicidal activity, reducing fungal enzyme activity and <i>A. radicina</i> growth. Both EONEs at 75/100 mL effectively controlled the disease in field trials. Furthermore, 50 µL/100 mL EONEs increased coriander growth parameters such as plant height, branching, and fresh weight. Compared with the control, Thyme EONEs were superior in terms of increasing oil content, seed yield, and overall oil yield. The chromosomal aberration study revealed a dose-dependent effect of EONEs, with lower concentrations exhibiting less cytotoxicity than fungicides. This study introduces thyme and cumin EOs as novel, effective, and safe alternatives to chemical fungicides for <i>A. radicina</i> control.</p>","PeriodicalId":20148,"journal":{"name":"Physiology and Molecular Biology of Plants","volume":"31 12","pages":"2163-2184"},"PeriodicalIF":3.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12715093/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145805191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dynamics of redox imbalance, antioxidant defense network, and regulation of aquaporin-mediated water transport in contrasting maize (<i>Zea mays</i> L.) genotypes in response to drought stress.","authors":"Pratyush Kanti Ghosh, Shrabani Saha, Mrinmay Tarafder, Ayan Adhikari, Arun Kumar Shaw, Doyel Roy, Sampad Choubey, Ditsa Bhattacharya, Debapriya Basuli, Narayan Bhowmick, Sankhajit Roy, Zahed Hossain","doi":"10.1007/s12298-025-01684-1","DOIUrl":"https://doi.org/10.1007/s12298-025-01684-1","url":null,"abstract":"<p><p>Drought is one of the severe environmental stressors that drastically impair plant growth and yield. In this study, we have screened diverse maize genotypes and selected PMI-PV9 and PMI-PV4 as drought-tolerant and drought-sensitive maize inbred lines, respectively. Expression of aquaporins and dehydrin, relative water content, membrane damage, ROS generation, osmolytes accumulation, ABA level, stomatal behaviour, and modulation of ascorbate-glutathione cycle were compared among the selected maize genotypes to better understand the plant drought stress response mechanisms. Upon drought exposure, PMI-PV9 genotype exhibited better seedling growth over PMI-PV4 plants. Enhanced expression of <i>ZmPIP1;1</i> <i>,</i> <i>ZmPIP1;3,</i> and <i>ZmTIP2;1</i> transporters, <i>DHN1</i> and <i>DREB1</i> might render the PMI-PV9 plants more efficient to withstand the drought condition by regulating ion-water homeostasis, maintaining cell turgidity and membrane stability. In a nutshell, our findings suggest that the disruption in cellular redox equilibrium due to meagre antioxidant defence mechanism might be the prime reason behind the oxidative burst leading poor performance of PMI-PV4 plants under water deficit condition. To our best knowledge, this is the first study that simultaneously integrates redox homeostasis, aquaporin regulation, and dehydrin expression to deepen our understanding of drought tolerance mechanisms in contrasting maize genotypes. Overall, the present investigation highlights PMI-PV9 as a promising parental line for breeding program to develop high-yielding maize hybrids with enhanced drought tolerance.</p><p><strong>Graphical abstract: </strong></p><p><strong>Supplementary information: </strong>The online version contains supplementary material available at 10.1007/s12298-025-01684-1.</p>","PeriodicalId":20148,"journal":{"name":"Physiology and Molecular Biology of Plants","volume":"31 12","pages":"2231-2253"},"PeriodicalIF":3.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12714685/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145805479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction: Citrulline enhances salinity tolerance via photosynthesis, redox balance, osmotic and hormonal regulation, and nutrient assimilation in sunflower (<i>Helianthus annuus</i> L.).","authors":"Umer Farooq, Muhammad Arslan Ashraf, Rizwan Rasheed","doi":"10.1007/s12298-025-01683-2","DOIUrl":"10.1007/s12298-025-01683-2","url":null,"abstract":"<p><p>[This corrects the article DOI: 10.1007/s12298-025-01626-x.].</p>","PeriodicalId":20148,"journal":{"name":"Physiology and Molecular Biology of Plants","volume":"31 12","pages":"2255-2256"},"PeriodicalIF":3.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12715056/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145805514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The <i>StTNLC7G2T1</i> enhances resistance to biotic stress in <i>Arabidopsis</i> via pathogen triggered immunity.","authors":"Namo Dubey, L Mathan, Sidharth Patidar, Kunal Singh","doi":"10.1007/s12298-025-01681-4","DOIUrl":"https://doi.org/10.1007/s12298-025-01681-4","url":null,"abstract":"<p><p>The nucleotide binding site-leucine rich repeat (NBS-LRR) gene family is widely recognized for playing prominent role in plant defence against diverse pathogens. One such member, <i>StTNLC7G2T1</i> (<i>PGSC0003DMC400041857</i>) from the cultivated potato (<i>Solanum</i> <i>tuberosum</i>) variety Kufri Jyoti was functionally characterized to investigate its role in plant immunity. Transgenic <i>Arabidopsis</i> plants were raised expressing <i>StTNLC7G2T1</i> (<i>OEStTNLC7G2T1</i>) exhibiting significantly enhanced resistance to fungal pathogen <i>Alternaria</i> <i>brassicicola</i> and bacterial pathogen <i>Pseudomonas</i> <i>syringae</i> pv. tomato DC3000. Compared to wild-type (Col-0) plants, these transgenic lines showed induced callose deposition at infection sites, suggesting a strengthened cell wall-mediated defence response. The <i>OEStTNLC7G2T1</i> plants maintained photosynthetic efficiency under pathogen attack, potentially contributing to improved overall plant health and resilience. The transcript expression patterns revealed significant modulation of genes associated with Salicylic acid (SA) and Jasmonic acid (JA) mediated defence responses (<i>PR1</i>, <i>PR2</i>, <i>NPR1</i>, <i>VSP2</i>, <i>PDF1.</i>2 and <i>MYC2</i>), indicating that <i>StTNLC7G2T1</i> may enhance plant immunity by influencing hormone signaling pathways. The observed increase in callose accumulation and the expression profile of select genes revealed that transgenic <i>StTNLC7G2T1</i> confers pathogen-triggered immunity in <i>Arabidopsis</i> via enhanced basal defense.</p><p><strong>Supplementary information: </strong>The online version contains supplementary material available at 10.1007/s12298-025-01681-4.</p>","PeriodicalId":20148,"journal":{"name":"Physiology and Molecular Biology of Plants","volume":"31 12","pages":"2217-2229"},"PeriodicalIF":3.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12714681/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145805121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nitric oxide: a strong inducer of increased production of bioactive compounds in cell and organ cultures.","authors":"Hosakatte Niranjana Murthy, Kadanthottu Sebastian Joseph, Kee Yoeup Paek, So-Young Park","doi":"10.1007/s12298-025-01679-y","DOIUrl":"10.1007/s12298-025-01679-y","url":null,"abstract":"<p><strong>Abstract: </strong>Specialized metabolites/secondary metabolies such phenolics, terpenoids, alkaloids, and sulphur-containing compounds are abundant in medicinal plants and have priceless therapeutic qualities. Plant cell, tissue, and organ cultures are used to produce valuable specialized metabolites that are used as pharmaceuticals, nutraceuticals, and natural coloring agents. Various strategies are utilized for the production of specialized compounds in vitro and the elicitation of cultures using biotic and abiotic elicitors is of novel technology. In recent years, nitric oxide (NO) donors such as sodium nitroprusside, <i>S</i>-introso-N-acetylpenicillamine, <i>S</i>-nirtosoglutathone, and diethylamine NONOate have been utilized for eliciting the plant cell, tissue, and organ cultures. Several reports exist in the literature NO works as a potent elicitor in enhancing the accumulation of specialized metabolites in cell and organ cultures. The objective of the current study was to evaluate NO as an elicitor and summarize the advantages and limitations of NO for the production of specialized metabolites in vitro. The mechanism of NO-induced elicitation has been exemplified using several successful examples.</p><p><strong>Graphical abstract: </strong></p>","PeriodicalId":20148,"journal":{"name":"Physiology and Molecular Biology of Plants","volume":"31 12","pages":"2087-2099"},"PeriodicalIF":3.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12714683/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145804808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hydrogen peroxide is a central ROS regulator in plant immunity.","authors":"Archana Pathak, Ashutosh Kumar, Aakanksha Wany","doi":"10.1007/s12298-025-01673-4","DOIUrl":"https://doi.org/10.1007/s12298-025-01673-4","url":null,"abstract":"<p><p>Hydrogen peroxide (H₂O₂) is steadily gaining more attention in the field of molecular biology research as it has a crucial dual role in regulation and control of biological processes, including programmed cell death, development, growth, cell cycle, hormone signaling, biotic and abiotic stress responses. However, when kept at comparatively low concentrations, H₂O₂ acts as a signaling molecule and in many aspects, resembles phytohormones. We examined current developments in H₂O₂ signaling distinct to each cellular compartment and those that are cross-compartmental also. Toxicity due to excessive reactive oxygen species (ROS), plants have adaptive ameliorated complex antioxidative defense mechanism that includes both enzymatic and non-enzymatic components which either scavenge ROS or prevent their detrimental effects on biomolecules. We also summarize the indispensable roles of H₂O₂, transcription factor genes involved in plant defense, its crosstalk with phytohormones and other metabolites of plant defense such as jasmonic acid, ethylene and salicylic acid. In conclusion, we enlist the most challenging current issues in the study of plant ROS biology, w.r.t visualization/imaging, and the necessity of further clarifying the mechanisms that enable multiple signal coordination, sensing, and signaling specialization<b>.</b></p>","PeriodicalId":20148,"journal":{"name":"Physiology and Molecular Biology of Plants","volume":"31 12","pages":"2061-2085"},"PeriodicalIF":3.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12714686/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145804758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fruit-specific expression of <i>SlDREB3</i> enhances the post-harvest life of fruits in tomato and overcomes abnormalities in seed germination and vegetative growth.","authors":"Rakhi Prabhakar, Rashmi Singh, Asmita Gupta, Rambir Singh, Aniruddha P Sane","doi":"10.1007/s12298-025-01676-1","DOIUrl":"10.1007/s12298-025-01676-1","url":null,"abstract":"<p><p>Fruit softening is an integral component of ripening and involves the disassembly of wall components by various enzymes. Excessive softening results in large scale post-harvest losses of commercial fruits. We had previously identified <i>SlDREB3</i> as an activator that reduced ABA levels and responses, leading to early seed germination and delayed fruit ripening/softening when expressed constitutively. Surprisingly, constitutive expression of <i>SlDREB3</i> also affected seedling establishment causing yellowing and death of almost 50% of the seedlings, besides reducing growth of the surviving plants and imparting drought susceptibility. To overcome this problem, <i>SlDREB3</i> was expressed under the fruit-specific <i>2A11</i> promoter. Expression of <i>pSl2A11::SlDREB3</i> in transgenic tomato plants eliminated the germination and vegetative growth defects of constitutive expression. All transgenic lines showed normal germination and normal vegetative growth. Reproductive stage effects of SlDREB3 action were enhanced with ripening being delayed by six days in <i>pSl2A11::SlDREB3</i> fruits and associated with delayed/reduced expression of most genes governing ethylene biosynthesis, ripening regulation and softening. Importantly, post-harvest fruit deterioration, as seen by loss of structure, showed a delay of almost ten days in <i>pSl2A11::SlDREB3</i> lines over the control. SlDREB3 directly binds the promoter of the ABA degradation gene <i>SlCYP707A3</i> leading to higher transcript levels that delay ripening. The studies show that the ability of SlDREB3 to delay ripening and softening is enhanced when expressed under the tomato <i>2A11</i> promoter compared to the constitutive promoter but associated with none of the vegetative growth defects of constitutive expression.</p><p><strong>Supplementary information: </strong>The online version contains supplementary material available at 10.1007/s12298-025-01676-1.</p>","PeriodicalId":20148,"journal":{"name":"Physiology and Molecular Biology of Plants","volume":"31 12","pages":"2145-2161"},"PeriodicalIF":3.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12715087/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145804771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative study on chemical characteristics of aromatic volatile organic compounds (VOCs) and gene expression in scented and non-scented <i>Rosa Hybrida</i> cultivars.","authors":"P R Jadhav, T P Ahammed Shabeer, R S Yadav, A Dhole, R G Kale, D V S Raju, B Ghosh, K Banerjee, K V Prasad, P G Kawar","doi":"10.1007/s12298-025-01664-5","DOIUrl":"https://doi.org/10.1007/s12298-025-01664-5","url":null,"abstract":"<p><p>Hybrid teas, celebrated for their elegance and vivid colors, stand as the most cherished class of roses. Their aromatic and diverse varieties have significantly influenced the development of today's beloved tea-scented roses. This study investigates the volatile organic compounds (VOCs) and gene expression patterns associated with fragrance production in fragrant and non-fragrant rose cultivars. A total of 253 VOCs, including 29 major compounds, were identified, with significant contributions from terpenoids, aromatic hydrocarbons, and esters. Fragrant cultivars displayed high concentrations of phenylethyl alcohol, citronellol, and geranic acid, while non-fragrant cultivars exhibited elevated levels of benzyl alcohol and phenylethyl acetate. Chemometric analyses, including Principal Component Analysis (PCA) and Partial Least Squares Discriminant Analysis (PLS-DA), revealed distinct volatile profiles between fragrant and non-fragrant cultivars. The presence of key compounds such as 3,5-dimethoxytoluene (DMT) and phenylethyl alcohol was strongly associated with fragrance. Gene expression analysis highlighted the role of several biosynthetic genes, including <i>RhNUDX1</i>, <i>RhGGPPS</i>, and <i>RhHMGCR</i>, in the production of monoterpenes and aromatic alcohols, with differential expression patterns observed between fragrant and non-fragrant cultivars. Notably, the expression of <i>RhOOMT</i> was positively correlated with the presence of DMT, a key scent compound. These findings underscore the complex genetic and metabolic pathways involved in rose fragrance and provide insights into the molecular basis of scent production, which could inform future rose breeding programs aimed at enhancing fragrance.</p><p><strong>Supplementary information: </strong>The online version contains supplementary material available at 10.1007/s12298-025-01664-5.</p>","PeriodicalId":20148,"journal":{"name":"Physiology and Molecular Biology of Plants","volume":"31 11","pages":"1913-1927"},"PeriodicalIF":3.3,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12618764/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145541813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Anthocyanins in action: physiological, biochemical, and molecular strategies for mitigating climatic stress in eco-friendly crop production.","authors":"Hadiqa Anum, Shumila Ishfaq, Rui-Feng Cheng, Yu-Xin Tong","doi":"10.1007/s12298-025-01652-9","DOIUrl":"https://doi.org/10.1007/s12298-025-01652-9","url":null,"abstract":"<p><p>Climate change has imposed severe abiotic stresses, such as high temperatures, drought, salinity, and ultraviolet (UV) radiation, on crops, posing a serious threat to global food security. In this context, anthocyanins, a class of water-soluble pigments from the flavonoid family, have emerged as multifunctional compounds critical for eco-friendly crop resilience. These pigments help plants mitigate oxidative damage, maintain photosynthetic efficiency, and adapt to harsh environmental cues. The biosynthesis of anthocyanins is regulated by complex genetic and biochemical pathways that respond dynamically to environmental stress signals, particularly those related to abiotic stress conditions. Recent advances in genome editing technologies, such as CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats)-Cas systems, along with metabolic engineering, have opened new avenues to modulate anthocyanin biosynthesis, thereby enhancing plant tolerance to climate-induced stresses. However, to fully harness their potential, targeted innovations in anthocyanin-based genetic engineering, metabolic optimization, and breeding strategies are essential for promoting crop improvement and ensuring sustainable agriculture. This review highlights the protective functions of anthocyanins, including their roles as antioxidants, metal chelators, and signalling molecules, while also emphasising the complex transcriptional, hormonal, and epigenetic controls of their biosynthesis. By integrating anthocyanin-focused biotechnology and breeding tools, this work offers a roadmap for developing stress-resilient, climate-smart crops, strengthening global food security amid environmental change.</p>","PeriodicalId":20148,"journal":{"name":"Physiology and Molecular Biology of Plants","volume":"31 11","pages":"1831-1851"},"PeriodicalIF":3.3,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12618802/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145541866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Molecular characterization and expression of sucrose transporters (<i>SUT</i>s) in response to water deficit in tomato and effects of <i>Rin</i> and <i>Nr</i> mutations.","authors":"Ana C O Barbosa, Glaucia C B Silva, Dilson S Rocha, Maria L do C Santos, Paulo H G A de Oliveira, Aline A Cavalari, Marcio G C Costa","doi":"10.1007/s12298-025-01668-1","DOIUrl":"https://doi.org/10.1007/s12298-025-01668-1","url":null,"abstract":"<p><p>This study investigated the molecular features and gene expression of tomato sucrose transporters (<i>SUTs</i>) in response to water deficit and the effects of ripening mutations <i>rin</i> and <i>Nr</i>. In silico analyses were carried out to characterize the amino acid sequences, conserved domains and gene structure of the <i>SlSUTs</i>. Wild-type (<i>WT</i>) and two near isogenic lines (NILs) of Micro-Tom harbouring the <i>rin</i> and <i>Nr</i> mutations were subjected to control and water deficit treatments and physiological and molecular analyses were carried out, including leaf gas exchange, antioxidant enzyme activity, soluble sugars concentration, and <i>SUT</i> gene expression in different source-sink organs. The results showed that the <i>SlSUT</i> genes are structurally conserved but variable in sequences, suggesting functional specialization within this gene family. Plant phenotyping revealed a metabolic adjustment of tomato plants grown under water deficit, including an increase in the concentration of soluble sugars in fruits and leaves. <i>SlSUT1</i> and <i>SlSUT4</i> were responsive to water deficit mainly in leaves and fruits, with such responses being annulled in leaves by the <i>rin</i> mutation. In addition, <i>SlSUT4</i> was down-regulated by water deficit in roots, irrespective of the genotype, and showed a co-regulated expression with <i>SlETR2</i>. <i>SlSUT2</i> was also induced by water-deficit in leaves and fruits, with the <i>Nr</i> mutation making it responsive also in roots. Collectively, these data indicate that <i>SlSUT</i> genes are structurally conserved but functionally distinct, exhibiting a differentially regulated expression in response to water deficit and <i>RIN</i> and <i>Nr</i> signaling in different source-sink organs.</p><p><strong>Supplementary information: </strong>The online version contains supplementary material available at 10.1007/s12298-025-01668-1.</p>","PeriodicalId":20148,"journal":{"name":"Physiology and Molecular Biology of Plants","volume":"31 11","pages":"1963-1978"},"PeriodicalIF":3.3,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12618796/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145541819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}