Physiologia plantarum最新文献

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Genome-Wide Association Study in European Beech (Fagus sylvatica L.) for Drought Stress Related Traits. 欧洲山毛榉干旱胁迫相关性状的全基因组关联研究。
IF 4 2区 生物学
Physiologia plantarum Pub Date : 2026-09-01 DOI: 10.1111/ppl.71120
Mila Tost, Ourania Grigoriadou-Zormpa, Selina Wilhelmi, Timothy Beissinger, Mehdi Ben Targem, Markus Müller, Henning Wildhagen, Alexandru Lucian Curtu, Oliver Gailing
{"title":"Genome-Wide Association Study in European Beech (Fagus sylvatica L.) for Drought Stress Related Traits.","authors":"Mila Tost, Ourania Grigoriadou-Zormpa, Selina Wilhelmi, Timothy Beissinger, Mehdi Ben Targem, Markus Müller, Henning Wildhagen, Alexandru Lucian Curtu, Oliver Gailing","doi":"10.1111/ppl.71120","DOIUrl":"10.1111/ppl.71120","url":null,"abstract":"<p><p>Genome-wide association studies (GWAS) aim to identify loci associated with different traits, which could be evaluated in subsequent studies and later be prioritized in individual and seed stand selection. In trees, traits are measured at maturity or are only available after a long time, and juvenile-mature correlations are often unknown. Therefore, it is a promising approach to study natural populations directly. Data were collected from approximately 100 adult beech trees per stand in five locations in the Postăvarul Massif, South-Eastern Romanian Carpathians (Carpații de Curbură) along an altitudinal gradient associated with precipitation and temperature. We performed GWAS on 610,678 single-nucleotide polymorphisms (SNPs) using PLINK and Genome-wide Efficient Mixed Model Association (GEMMA) to identify SNP markers associated with drought-stress-related traits. Even though this study used a natural population, we found very interesting associations while accounting for environmental heterogeneity along the altitudinal gradient. A total of 88 markers were associated with stomatal density. Seventy-two markers are located on chromosome 10 in a region spreading from ~5.48 to 13.67 Mb. We found five gene annotations in this region that are thought to play a role in controlling stomatal density in Arabidopsis. All markers within this region exhibit similar allele frequencies, which indicate a connection to stomatal density and the altitudinal gradient. This entire region may be under joint selection for stomatal features. Our research provides insights into the genetic architecture of various drought-stress traits in the studied population.</p>","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"178 5","pages":"e71120"},"PeriodicalIF":4.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13598277/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149025815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nano-Iron Alleviates Carbohydrate Deficiency and Improves Yield of Soybean Under Saline-Alkali Stress by Regulating Photosynthetic Carbon Assimilation. 纳米铁通过调节光合碳同化,缓解盐碱胁迫下大豆碳水化合物缺乏,提高产量
IF 4 2区 生物学
Physiologia plantarum Pub Date : 2026-09-01 DOI: 10.1111/ppl.71078
Hou Jialin, Chen Suyu, Du Yanli, Cao Liang, Zhang Yuxian, Zhao Qiang
{"title":"Nano-Iron Alleviates Carbohydrate Deficiency and Improves Yield of Soybean Under Saline-Alkali Stress by Regulating Photosynthetic Carbon Assimilation.","authors":"Hou Jialin, Chen Suyu, Du Yanli, Cao Liang, Zhang Yuxian, Zhao Qiang","doi":"10.1111/ppl.71078","DOIUrl":"10.1111/ppl.71078","url":null,"abstract":"<p><p>In salinized soils, high salt and pH inhibit iron availability via chelation and ion competition, inducing iron deficiency stress in plants. Compared with traditional iron fertilizers, nano-iron has characteristics like easy absorption and targeted slow release, showing great potential in improving plants' saline-alkali tolerance. Herein, a spherical-like nano-iron (average particle size of 20-50 nm, zeta potential of -25 mV, and with oxide layer) was synthesized. Soybean cultivars Hefeng 50 (HF50) and Henong 95 (HN95) were grown in pots filled with soil treated with mixed saline-alkali solution (NaCl: Na<sub>2</sub>SO<sub>4</sub>: Na<sub>2</sub>CO<sub>3</sub>: NaHCO<sub>3</sub> = 1: 9: 1: 9, pH = 8.9) to investigate the effects of foliar application of 0-300 mg l<sup>-1</sup> nano-iron on soybean growth. Foliar nano-iron significantly alleviated saline-alkali stress induced growth inhibition, with 200 mg l<sup>-1</sup> as the optimal concentration. Nano-iron enhanced antioxidant enzymes activities in soybean leaves and roots under saline-alkali stress, reduced cellular H<sub>2</sub>O<sub>2</sub> and O<sub>2</sub> <sup>-</sup> contents, mitigated membrane lipid peroxidation, and improved osmotic adjustment capacity. It up-regulated the expression levels of genes related to chlorophyll biosynthesis, light absorption, electron transport, and carbohydrate metabolism, increased chlorophyll content, promoted the efficiency of light absorption and utilization in soybean leaves, accelerated carbohydrate biosynthesis, and provided a material and substrate basis for plant stress-resistant physiological regulation. Ultimately, the 200 mg l<sup>-1</sup> nano-iron treatment significantly increased the number of seeds per plant, seed weight per plant, and 100-seed weight of both soybean cultivars. This study provides the basis for developing nano-iron-based soybeans saline-alkali tolerant cultivation technologies.</p>","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"178 5","pages":"e71078"},"PeriodicalIF":4.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13523002/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148841019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
AaMYB17 Regulates the Biosynthesis of Anthocyanins in the Fruit of Actinidia arguta. AaMYB17调控软枣猕猴桃果实花青素的生物合成。
IF 4 2区 生物学
Physiologia plantarum Pub Date : 2026-09-01 DOI: 10.1111/ppl.71111
Xiang Chen, Wenhui Li, Xinrui Liu, Changjia Zhao, Yanbo Guo, Zhongyong Ma, Lihua Zhang, Wanda Liu, Deguo Han, Xingguo Li
{"title":"AaMYB17 Regulates the Biosynthesis of Anthocyanins in the Fruit of Actinidia arguta.","authors":"Xiang Chen, Wenhui Li, Xinrui Liu, Changjia Zhao, Yanbo Guo, Zhongyong Ma, Lihua Zhang, Wanda Liu, Deguo Han, Xingguo Li","doi":"10.1111/ppl.71111","DOIUrl":"https://doi.org/10.1111/ppl.71111","url":null,"abstract":"<p><p>To reveal the relationship of anthocyanin biosynthesis in Actinidia arguta, we cloned a typical R2R3-MYB transcription factor-AaMYB17 gene from the cultivar \"Dahongpao.\" Expression analysis showed that AaMYB17 was significantly negatively correlated with anthocyanin accumulation and the expression of most of the structural genes in the anthocyanin biosynthetic pathway. Functional verification using transient overexpression, virus-induced gene silencing (VIGS), and heterologous expression in Arabidopsis thaliana and tomato demonstrated that AaMYB17 acts as a broad-spectrum repressor that significantly inhibits anthocyanin biosynthesis and downregulates related structural genes. We performed dual-luciferase and GUS assays, which confirmed that AaMYB17 can bind to the key anthocyanin biosynthesis gene AaANS, repress its expression, and thereby inhibit anthocyanin accumulation. This work clarifies the molecular basis through which AaMYB17 negatively regulates anthocyanin biosynthesis in Actinidia arguta. These findings also supply important gene resources and theoretical support for the molecular breeding of Actinidia arguta fruits with improved anthocyanin contents.</p>","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"178 5","pages":"e71111"},"PeriodicalIF":4.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149169962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Temperature Stress Resilience in Polar Chlamydomonas Is Regulated by Acclimation to Light and Salinity: Implications for Survival in a Changing World. 极地衣藻的温度应激恢复能力是由光和盐的适应调节的:在不断变化的世界中生存的意义。
IF 4 2区 生物学
Physiologia plantarum Pub Date : 2026-09-01 DOI: 10.1111/ppl.71149
Pomona Osmers, Allison Szenasi, Laura Kostyniuk, Nicholas Bradette, Marina Cvetkovska
{"title":"Temperature Stress Resilience in Polar Chlamydomonas Is Regulated by Acclimation to Light and Salinity: Implications for Survival in a Changing World.","authors":"Pomona Osmers, Allison Szenasi, Laura Kostyniuk, Nicholas Bradette, Marina Cvetkovska","doi":"10.1111/ppl.71149","DOIUrl":"10.1111/ppl.71149","url":null,"abstract":"<p><p>Aquatic algae are key primary producers in the Arctic and Antarctic, yet how cold-water species respond to environmental change is poorly understood. The polar regions are increasingly exposed to frequent heat waves, leading to declining ice cover, increasing light availability, and decreasing salinity in polar waters. We compared three phylogenetically related but geographically distant polar Chlamydomonas species to test how habitat history shapes algal responses to light, salinity, and temperature stress. We assessed the growth, morphology, and photochemistry of psychrophilic Chlamydomonas acclimated to native-like (lower light, higher salinity) and climate-shifted (higher light, lower salinity) conditions. Next, we exposed acclimated cultures to heat shock and observed how acclimation affects algal temperature stress resilience. All three species acclimated to climate-shifted conditions grew rapidly but showed the greatest sensitivity to temperature stress, with a rapid loss of viability and photosynthetic efficiency. In contrast, slow-growing cultures acclimated to native-like conditions exhibited significantly greater resilience to temperature stress. Our work is the first to directly link light and salinity acclimation with temperature resilience in psychrophilic algae, suggesting that fast-growing polar green algae may be particularly vulnerable to increasingly frequent heat waves, with major implications for primary productivity in polar environments.</p>","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"178 5","pages":"e71149"},"PeriodicalIF":4.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13665597/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149183835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Antimycin A Improves Heat Tolerance in Creeping Bentgrass by Suppressing Nighttime Respiration and Reprogramming Carbon and Nitrogen Metabolism. 抗霉素A通过抑制夜间呼吸和重编程碳氮代谢提高匍匐弯草的耐热性。
IF 4 2区 生物学
Physiologia plantarum Pub Date : 2026-09-01 DOI: 10.1111/ppl.71151
Amir Abbas, Stephanie Rossi, Bingru Huang
{"title":"Antimycin A Improves Heat Tolerance in Creeping Bentgrass by Suppressing Nighttime Respiration and Reprogramming Carbon and Nitrogen Metabolism.","authors":"Amir Abbas, Stephanie Rossi, Bingru Huang","doi":"10.1111/ppl.71151","DOIUrl":"https://doi.org/10.1111/ppl.71151","url":null,"abstract":"<p><p>High temperature causes an increase in plant respiration, which may contribute to growth decline under heat stress. The objectives of this study were to investigate whether suppressing heat-elevated dark respiration with a respiration inhibitor, antimycin A (AA), could improve heat tolerance and alter carbon and nitrogen-containing metabolite pools in creeping bentgrass (Agrostis stolonifera \"Penncross\"). Plants received water or foliar AA under 25°C/15°C or 35°C/35°C day/night conditions for 35 days. Turf quality, photosynthesis (Pn), and nighttime respiration (Rn) were measured weekly, and leaf metabolites were analyzed at Day 35. Under 35°C/35°C, AA-treated plants maintained higher turf quality from Days 14-35, higher Pn, and lower Rn than plants not treated with AA. AA treatment increased the relative levels of glucose, cellobiose, and multiple amino acids, including proline, glutamine, asparagine, and γ-aminobutyric acid. Pyruvate and shikimate increased, whereas α-ketoglutarate decreased; malate and isocitrate did not differ significantly. By combining physiological measurements with metabolite profiling, this study identifies carbohydrate conservation and changes in carbon and nitrogen metabolism as potential contributors to AA-associated heat tolerance in creeping bentgrass.</p>","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"178 5","pages":"e71151"},"PeriodicalIF":4.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149228612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Auxin, Strigolactones, and Nitric Oxide Coordinate Lateral Root Development in Rice During Early Interaction With Rhizophagus irregularis. 生长素、独角麦内酯和一氧化氮在水稻与不规则食根菌早期相互作用中协调侧根发育。
IF 4 2区 生物学
Physiologia plantarum Pub Date : 2026-09-01 DOI: 10.1111/ppl.71099
Giulia Raffaele, Marilena Ronzan, Emanuela Del Dottore, Jian You Wang, Paolo Bianchini, Alberto Diaspro, Carlo Filippeschi, Salim Al-Babili, Laura De Gara, Barbara Mazzolai
{"title":"Auxin, Strigolactones, and Nitric Oxide Coordinate Lateral Root Development in Rice During Early Interaction With Rhizophagus irregularis.","authors":"Giulia Raffaele, Marilena Ronzan, Emanuela Del Dottore, Jian You Wang, Paolo Bianchini, Alberto Diaspro, Carlo Filippeschi, Salim Al-Babili, Laura De Gara, Barbara Mazzolai","doi":"10.1111/ppl.71099","DOIUrl":"10.1111/ppl.71099","url":null,"abstract":"<p><p>Arbuscular mycorrhizal fungi (AMF) form symbiotic associations with plant roots, profoundly shaping root system architecture (RSA) and influencing nutrient acquisition in crops. This modulation begins during the early pre-symbiotic stage, when plants and fungi interact without physical contact. Root formation is orchestrated by signaling molecules, including hormones such as auxin (IAA) and strigolactones (SLs), as well as reactive nitrogen species such as nitric oxide (NO). However, the mechanisms by which AMF spores modulate these pathways to influence root development in rice remain largely unexplored. Here, we investigated the effects of Rhizophagus irregularis spores on root formation in Oryza sativa L., focusing on IAA, SLs, and NO modulation. Exposure to both live and autoclaved spores enhanced lateral root formation in adventitious roots, whereas only live spores promoted elongation and secondary branching of large lateral roots (LLRs), a rice-specific feature. These effects were correlated with increased IAA levels, transcriptomic changes, and decreased SL accumulation, revealing an integrated signaling network controlling LLR development. Histochemical analyses revealed NO accumulation in the root elongation zone and apex, accompanied by the upregulation of the high-affinity nitrate transporter OsNRT2.1 in LLRs. Together, our findings reveal a root-type-specific involvement of IAA, SLs, and NO in shaping RSA during the pre-symbiotic stage of AMF interactions. This study provides new insights into early signaling events that mediate host discrimination and regulate root architecture during the pre-symbiotic phase of AMF establishment.</p>","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"178 5","pages":"e71099"},"PeriodicalIF":4.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13553156/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148913068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Long-Term Irrigation History Provides Evidence for Drought Memory in Clonally Propagated Grapevines During Water Deficit and Recovery. 长期灌溉历史为无性系葡萄在缺水和恢复期间的干旱记忆提供了证据。
IF 4 2区 生物学
Physiologia plantarum Pub Date : 2026-09-01 DOI: 10.1111/ppl.71130
João de Deus, Miguel Damásio, Ana Rodrigues, José Silvestre, Luisa Carvalho, Olfa Zarrouk
{"title":"Long-Term Irrigation History Provides Evidence for Drought Memory in Clonally Propagated Grapevines During Water Deficit and Recovery.","authors":"João de Deus, Miguel Damásio, Ana Rodrigues, José Silvestre, Luisa Carvalho, Olfa Zarrouk","doi":"10.1111/ppl.71130","DOIUrl":"https://doi.org/10.1111/ppl.71130","url":null,"abstract":"<p><p>Grapevine adapts to water stress through complex hydraulic and growth adjustments, with its recovery capacity being a key component of drought tolerance. Recurrent drought can induce an acquired \"water stress memory\" (priming), altering a genotype's response to future stress. We investigated whether drought responses in grapevine progenies are more shaped by genetic background or environmental history. Primed (NI) and non-primed (FI) progenies of two varieties: Trincadeira (isohydric) and Castelão (anisohydric) were exposed to well-watered (WW) and water stress (WS) conditions, followed by recovery. Over 2 weeks, we monitored plant water status, canopy growth, biomass, transpiration, hydraulic conductance, leaf gas-exchange, stomatal conductance kinetics, chlorophyll and wax content, and leaf temperature. Water stress increased root area only in FI progenies, whereas in NI progenies, fine root proliferation was more linked to past stress than to immediate water stress. Drought memory shifted NI plants towards a less conservative water-use strategy, with reduced water-use efficiency, higher stomatal conductance, and increased transpiration. In Trincadeira, priming enhanced circadian stomatal control, maximizing daytime opening and nighttime closure, while in Castelão it increased stomatal sensitivity to vapor pressure deficit. Leaf temperature differences between genetic backgrounds emerged earlier than stomatal conductance changes. Photosynthesis decline under WS was greater in FI than NI progenies, and primed plants recovered faster, indicating a compensatory recovery effect. Our results demonstrate that drought memory shifts plants towards a less conservative water-use strategy while ensuring photosynthetic capacity, confirming that long-term water stress induces a background memory in grapevine, which is transmitted across vegetatively propagated generations and enhances progeny responses to drought.</p>","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"178 5","pages":"e71130"},"PeriodicalIF":4.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149075601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Metabolic Reprogramming in Cucumis metuliferus Roots and Rhizosphere Identifies Candidate Metabolites That Reduce Meloidogyne incognita Infection. 黄瓜根和根际代谢重编程鉴定候选代谢物减少不明嗜根腺成虫感染
IF 4 2区 生物学
Physiologia plantarum Pub Date : 2026-09-01 DOI: 10.1111/ppl.71135
Xin Guo, Shuai Wang, Jisong Qu, Hao Chen, Zongqing Li, Xinzhe Li, Shunyi Wang, Shuhong Zhang, Zhiqun Chen, Guifang Feng, Jingjing Liu, Xu Zhang
{"title":"Metabolic Reprogramming in Cucumis metuliferus Roots and Rhizosphere Identifies Candidate Metabolites That Reduce Meloidogyne incognita Infection.","authors":"Xin Guo, Shuai Wang, Jisong Qu, Hao Chen, Zongqing Li, Xinzhe Li, Shunyi Wang, Shuhong Zhang, Zhiqun Chen, Guifang Feng, Jingjing Liu, Xu Zhang","doi":"10.1111/ppl.71135","DOIUrl":"https://doi.org/10.1111/ppl.71135","url":null,"abstract":"<p><p>Root-knot nematode causes severe yield losses in cucumber and other cucurbits. The wild relative Cucumis metuliferus exhibits strong resistance, but the metabolic basis of this resistance and the potential of resistance-associated metabolites to protect susceptible crops remains poorly understood. Here, we compared host status, phenolic content, and untargeted metabolomes of roots and rhizosphere soils of C. metuliferus and C. sativus upon Meloidogyne incognita infection. C. metuliferus showed delayed nematode development, fewer galls, and a lower reproduction factor compared with C. sativus, accompanied by higher constitutive phenolic levels in mock-inoculated plants and phenolic levels at 7, 14, 21, and 28 days after inoculation. Untargeted metabolomics revealed that C. metuliferus underwent more extensive metabolic reprogramming than C. sativus, with 72 root-specific and 45 rhizosphere-specific differential metabolites enriched mainly in linolenic acid metabolism and dominated by lipids and organic acids. Six C. metuliferus-specific up-regulated metabolites (arginine, phenylacetic acid, proline, hydroxyproline, malic acid, maleic acid) were selected for functional validation. When exogenously applied to C. sativus seedlings under nematode stress, these metabolites were associated with enhanced shoot growth and biomass accumulation. Among them, arginine, hydroxyproline, and maleic acid were consistently associated with reduced root gall formation. Our findings demonstrate that C. metuliferus mounts a resistance phenotype through extensive root and rhizosphere metabolic reprogramming, and that specific up-regulated metabolites from this resistant species can both promote cucumber growth and reduce M. incognita infection. These metabolites represent promising candidates but require further field validation and formulation studies before being developed into sustainable nematode management strategies.</p>","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"178 5","pages":"e71135"},"PeriodicalIF":4.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149075607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Metabolic Trade-Off Between Carbon and Phenylpropanoid Pathways in Wheat Under Saline-Alkali Stress Revealed by Multi-Omics Analysis. 盐碱胁迫下小麦碳和苯丙素代谢途径的多组分析
IF 4 2区 生物学
Physiologia plantarum Pub Date : 2026-09-01 DOI: 10.1111/ppl.71101
Kangning Li, Hengxin Xuan, Cheng Li
{"title":"Metabolic Trade-Off Between Carbon and Phenylpropanoid Pathways in Wheat Under Saline-Alkali Stress Revealed by Multi-Omics Analysis.","authors":"Kangning Li, Hengxin Xuan, Cheng Li","doi":"10.1111/ppl.71101","DOIUrl":"10.1111/ppl.71101","url":null,"abstract":"<p><p>Wheat production is severely limited by soil salinity-alkalinity, yet the molecular mechanisms governing seed germination under such stress remain largely unelucidated. This study employed integrated transcriptomics, metabolomics, and WGCNA to decipher the adaptation strategies of germinating wheat seeds to gradient saline-alkali stress. Our results showed that stress induced a functional differentiation in carbon metabolism: fructose and mannose metabolism was enhanced, whereas starch and sucrose metabolism was inhibited. Concurrently, the phenylpropanoid defense network was differentially regulated, with the upstream backbone suppressed but the downstream stilbenoid biosynthesis branch specifically activated. WGCNA identified a core co-expression module (MEblue) enriched in these pathways, from which nine candidate hub genes, including SNL3 and TPS1, were identified based on their strong correlations with key metabolites. These findings provide crucial candidate gene targets for molecular breeding of saline-alkali tolerant wheat.</p>","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"178 5","pages":"e71101"},"PeriodicalIF":4.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13557833/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148920118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analysis of Growth and Physiological Response Characteristics of Suaeda salsa Under Compound Stress. 复合胁迫下沙特阿拉伯生长及生理响应特性分析。
IF 4 2区 生物学
Physiologia plantarum Pub Date : 2026-09-01 DOI: 10.1111/ppl.71063
Xiaofeng Gao, Luyi Cai, Ruitong Jiang, Jiaxin Wu, Yifei Shen, Zenan Zha, Jingwen Wang, Hailong Wu, Meiqin Wu, Jianheng Zhang, Weidong Wang, Peimin He
{"title":"Analysis of Growth and Physiological Response Characteristics of Suaeda salsa Under Compound Stress.","authors":"Xiaofeng Gao, Luyi Cai, Ruitong Jiang, Jiaxin Wu, Yifei Shen, Zenan Zha, Jingwen Wang, Hailong Wu, Meiqin Wu, Jianheng Zhang, Weidong Wang, Peimin He","doi":"10.1111/ppl.71063","DOIUrl":"https://doi.org/10.1111/ppl.71063","url":null,"abstract":"<p><p>This investigation examines the physiological and ecological adaptation mechanisms of Suaeda salsa, a halophytic plant, in response to multifaceted environmental stresses prevalent in coastal saline-alkali wetlands. Using a three-factor, three-level orthogonal experimental design, we evaluated the combined effects of temperature (15°C, 20°C, 25°C), light intensity (25, 50, 100 μmol m<sup>-2</sup> s<sup>-1</sup>), and salinity (0, 200, 400 mM NaCl) on plant performance. Temperature emerged as the dominant factor influencing growth, photosynthetic efficiency, and betacyanin accumulation. The highest growth rate and betacyanin content were observed under low temperature (15°C), high light (100 μmol m<sup>-2</sup> s<sup>-1</sup>), and moderate salinity (200 mM NaCl). Chlorophyll content was highest under moderate temperature (20°C) and low light (25 μmol m<sup>-2</sup> s<sup>-1</sup>). Y(II) and qP peaked under low temperature (15°C) and high light (100 μmol m<sup>-2</sup> s<sup>-1</sup>). Notably, chlorophyll content was highest under moderate temperature and low light, whereas betacyanin accumulation was highest under low temperature and high light. Positive correlations were observed between betacyanin content and both photosynthetic efficiency (Y(II), qP, F<sub>v</sub>/F<sub>m</sub>) and AGR. The interactive effects among the three factors were predominantly additive under the tested conditions, indicating that the main effects of temperature, light, and salinity largely acted independently on most physiological traits. Temperature consistently exhibited the largest effect size for all measured traits ( <math> <mrow><msubsup><mi>η</mi> <mi>p</mi> <mn>2</mn></msubsup> </mrow> </math>  = 0.588-0.773). Overall, this study provides a physiological basis for optimizing S. salsa restoration in coastal saline-alkali wetlands.</p>","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"178 5","pages":"e71063"},"PeriodicalIF":4.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149063815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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