Physiologia plantarum最新文献_第8页

Mixed Cultivation With Siberian Alder Worsens the Negative Impact of Salt Exposure on Growth and Major Physiological Processes of Black Locust Plants. 与西伯利亚桤木混作加重了盐暴露对刺槐植株生长和主要生理过程的负面影响。

IF 3.6 2区生物学

Physiologia plantarum Pub Date : 2025-09-01 DOI: 10.1111/ppl.70494

Sumei Li, Ruijie Zhang, Qiuling Hui, Heinz Rennenberg, Bin Hu

{"title":"Mixed Cultivation With Siberian Alder Worsens the Negative Impact of Salt Exposure on Growth and Major Physiological Processes of Black Locust Plants.","authors":"Sumei Li, Ruijie Zhang, Qiuling Hui, Heinz Rennenberg, Bin Hu","doi":"10.1111/ppl.70494","DOIUrl":"https://doi.org/10.1111/ppl.70494","url":null,"abstract":"Salinity is a major threat that can greatly affect the growth and development of plants. Mixed planting has been shown to effectively improve the salinity tolerance of tree species. However, it is still unknown whether admixing alder trees promotes the growth and development of N2-fixing Robinia pseudoacacia on saline soil. To address this question, single-planted Robinia seedlings and Robinia seedlings mixed with Siberian alder (Alnus hirsuta Turcz. ex Rupr.) were subjected to salt exposure, and growth parameters, photosynthetic characteristics, cation contents and ratios, osmoregulation by compatible solutes, and antioxidant metabolism were analyzed. The results showed that salt exposure significantly reduced whole-plant biomass, net photosynthesis rate, total chlorophyll content, and nodule nitrogenase activity of Robinia at both single and mixed planting with Siberian alder. Salt exposure significantly increased the accumulation of Na+, malondialdehyde, and hydrogen peroxide in the leaves of both single and mixed planted Robinia. Under salt exposure, mixed planting significantly inhibited the growth and nitrogen fixation capacity of Robinia due to interspecific competition, indicated by reduced biomass accumulation and photosynthetic efficiency compared with single planting. In addition, mixed planting exacerbated Na+ toxicity in Robinia roots and enhanced oxidative stress in Robinia leaves and roots, indicated by elevated hydrogen peroxide contents. These results indicate that mixing Robinia with Siberian alder at the seedling stage not only inhibits the nitrogen fixation capacity of Robinia but also reduces its salinity tolerance. They provide an important theoretical reference for the establishment of mixed Robinia forests at the seedling stage, particularly in salinized soils.","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 5","pages":"e70494"},"PeriodicalIF":3.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144965079","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 Gradients Determine Reproductive Development in Pea (Pisum sativum). 生长素梯度对豌豆生殖发育的影响。

IF 3.6 2区生物学

Physiologia plantarum Pub Date : 2025-09-01 DOI: 10.1111/ppl.70497

Dilini D Adihetty, Harleen Kaur, Charitha P A Jayasinghege, Dennis M Reinecke, Jocelyn A Ozga

{"title":"Auxin Gradients Determine Reproductive Development in Pea (Pisum sativum).","authors":"Dilini D Adihetty, Harleen Kaur, Charitha P A Jayasinghege, Dennis M Reinecke, Jocelyn A Ozga","doi":"10.1111/ppl.70497","DOIUrl":"10.1111/ppl.70497","url":null,"abstract":"Auxins are involved in the regulation of fruit set and development; however, the role of IAA is unclear in pea (Pisum sativum) since the endogenous auxin 4-Cl-IAA appears to be the auxin stimulating ovary (pericarp) growth. To further understand the role of auxins during fruit development, auxin localization, quantitation, transport, and gene expression activity were assessed in this model legume species. IAA levels and auxin activity (DR5::β-Glucuronidase [GUS] staining and enzyme activity) were substantially reduced in the pericarp vascular tissues, pedicels, and peduncles of fruit upon seed removal, reflecting auxin transport streams derived from the seeds through these tissues. Seed removal modified auxin response factor PsARF7/19, PsARF8, and PsARF5 transcript levels in the pericarp and attachment tissues in a manner suggesting tissue-specific regulation of their expression by auxin and ethylene. Pericarp application of polar auxin transport inhibitor N-1-naphthylphthalamic acid (NPA) increased auxin (DR5::GUS staining/enzyme) activity within pericarps of seeded, but not deseeded fruits, and NPA application to the peduncle modified IAA levels and DR5::GUS staining/enzyme activity, suggesting polar auxin transport from the seeds to surrounding tissues. However, the NPA application did not induce parthenocarpic fruit growth as in other model species. These data support that in pea, auxin is transported from the seeds to adjacent tissues at least partially through NPA-sensitive pathways, that seed-derived IAA plays a role in maintaining auxin gradients through the pericarp and attachment tissues likely for establishing the seed as a major sink, and that auxin and ethylene pathways interact to determine the fate of fruit development.","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 5","pages":"e70497"},"PeriodicalIF":3.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12420533/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145030379","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

Combined Soil and Atmospheric Cadmium Stresses: Cadmium Accumulation and Physiological Responses in Nicotiana tabacum L. 土壤和大气镉复合胁迫：烟草镉的积累和生理响应。

IF 3.6 2区生物学

Physiologia plantarum Pub Date : 2025-09-01 DOI: 10.1111/ppl.70484

Peidang Fan, Hang Shi, Huaxin Ling, Bo Li, Fumo Yang, Chengtao Huang, Liuyi Zhang

{"title":"Combined Soil and Atmospheric Cadmium Stresses: Cadmium Accumulation and Physiological Responses in Nicotiana tabacum L.","authors":"Peidang Fan, Hang Shi, Huaxin Ling, Bo Li, Fumo Yang, Chengtao Huang, Liuyi Zhang","doi":"10.1111/ppl.70484","DOIUrl":"https://doi.org/10.1111/ppl.70484","url":null,"abstract":"Cadmium (Cd) pollution threatens agricultural ecosystems and human health, yet the combined impacts of atmospheric and soil Cd exposure on plant accumulation dynamics remain underexplored. The investigation focuses on the two main Cd uptake routes, soil-root and atmosphere-leaf, in Nicotiana tabacum L., a commercial crop with a notable ability to hyperaccumulate Cd. Controlled experiments were conducted to simulate realistic exposure conditions, providing insights into how these pathways interact and influence Cd accumulation in plants. The key findings revealed that soil was the dominant Cd source (88.29%-92.63%), while atmospheric deposition contributed 3.54%-7.36%, with leaves acting as the primary sink (> 70% of total Cd). Subcellular distribution identified the cell walls (48%-75%) and vacuoles (21%-50%) as critical sequestration sites, mediated by pectin binding and phytochelatin-Cd complexes. Low atmospheric Cd enhanced biomass (10%) and antioxidant activity, whereas combined high stress (AHSH group) suppressed growth (plant height (PH) 18%, root length (RL) 26%) and chlorophyll synthesis (29%), alongside oxidative stress escalation (H2O2 53%, MDA 147%). Antioxidant enzymes (SOD, CAT, APX) exhibited threshold-dependent responses, being stimulated at low Cd levels but suppressed at high doses, which indicates limits to the detoxification capacity. These results underscore atmospheric Cd as a non-negligible risk factor in tobacco-growing regions, advocating for integrated soil-air monitoring frameworks to safeguard crop safety and ecosystem health.","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 5","pages":"e70484"},"PeriodicalIF":3.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144965145","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

Photoautotrophic Growth and the Transcriptome of the Halotolerant Model Microalga Dunaliella salina MCC43 Under Salt Stress. 耐盐模式杜氏微藻MCC43在盐胁迫下的光自养生长和转录组研究。

IF 3.6 2区生物学

Physiologia plantarum Pub Date : 2025-09-01 DOI: 10.1111/ppl.70545

Sakshi Singh, Prabhakar Singh, Nitesh Prasad, Savita Singh, Avinash Singh, Pankaj Kumar Singh, Arvind K Singh, Devashish Rath, Ravi K Asthana

{"title":"Photoautotrophic Growth and the Transcriptome of the Halotolerant Model Microalga Dunaliella salina MCC43 Under Salt Stress.","authors":"Sakshi Singh, Prabhakar Singh, Nitesh Prasad, Savita Singh, Avinash Singh, Pankaj Kumar Singh, Arvind K Singh, Devashish Rath, Ravi K Asthana","doi":"10.1111/ppl.70545","DOIUrl":"https://doi.org/10.1111/ppl.70545","url":null,"abstract":"Dunaliella salina is a geographically distinct, green alga without a rigid cell wall recognized as a model system for halotolerance. In this study, D. salina strains of the Indian origin isolated from the Sambhar Lake, Rajasthan, were initially cultured optimally at a 0.5 M NaCl level, and these cultures were exposed to 1-2 M NaCl for up to 2 h for transcriptomic analyses. The cells did not accumulate substantial levels of intracellular Na+. Reduced photosynthetic efficiency was observed at 2 h with an Fv/Fm ratio (~0.2) and thereafter reached a maximum on the 10th day. Concurrently, elevated levels of proline and malondialdehyde (MDA) were also detected at higher salt concentrations, suggesting the initiation of a stress response. The transcriptomic study revealed that amino acid biosynthesis pathways, along with pyruvate and carbohydrate metabolism-related genes, were significantly enriched in 0.5 M versus 2 M NaCl-grown D. salina cells at 2 h. Downregulated genes were mainly related to cytoskeletal and microtubule proteins as owing to the loss of flagellar structures at 2 h. There was a change in the carbon flux because of the upregulation of key genes concerned with glyoxylate and TCA cycles, along with fatty acid metabolism, contributing to the remodeling of membrane lipids, thereby supporting membrane integrity. The upregulated differentially expressed genes (DEGs) were validated through qRT-PCR for the photosynthetic apparatus, antioxidative defense, ion homeostasis, and protein translocation and folding. The metabolomic profile under long-term (10th day) acclimation showed the upregulation of secondary metabolites and sterols. Therefore, the altered expression of genes indicated that D. salina strains tolerated elevated salt levels in a specified adaptive process to attain metabolic readjustments.","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 5","pages":"e70545"},"PeriodicalIF":3.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145177509","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

Evaluation of Saline-Alkali Tolerance of Oenothera L. Germplasms and Their Morpho-Physiological Responses to Saline-Alkali Stress. 酒花种质耐盐碱性评价及其对盐碱胁迫的形态生理响应。

IF 3.6 2区生物学

Physiologia plantarum Pub Date : 2025-09-01 DOI: 10.1111/ppl.70541

Siyao Chen, Yanjie Li, Wenlong Zhang, Huizhen Shen, Siyu Wang, Rui Wang, Haiyan Li

{"title":"Evaluation of Saline-Alkali Tolerance of Oenothera L. Germplasms and Their Morpho-Physiological Responses to Saline-Alkali Stress.","authors":"Siyao Chen, Yanjie Li, Wenlong Zhang, Huizhen Shen, Siyu Wang, Rui Wang, Haiyan Li","doi":"10.1111/ppl.70541","DOIUrl":"https://doi.org/10.1111/ppl.70541","url":null,"abstract":"Soil salinization is a severe abiotic stress that affects plant growth and development, leading to accelerated maturity and decreased production and quality. In the present study, we evaluated 170 Oenothera L. germplasms for saline-alkali tolerance by subjecting them to 150 mmol·L-1 saline-alkali stress (pH = 9.0). Germination parameters were analyzed, and comprehensive evaluation methods were used to assess their tolerance at the germination stage. Among the 170 germplasms, we identified 12 saline-alkali-tolerant and 34 saline-alkali-sensitive germplasms. Subsequently, 23 germplasms were further evaluated for saline-alkali tolerance at the seedling stage. While seedling growth was inhibited across all specimens, five saline-alkali-tolerant germplasms were ultimately selected through comprehensive evaluation methods. We further examined photosynthetic pigment levels, membrane permeability, antioxidant oxidases, osmotic regulators, and mineral content to determine the plants' response. Germplasms with a higher tolerance to saline-alkali stress can adapt by (i) maintaining or increasing chlorophyll content and delaying leaf senescence, (ii) using osmotic adjustment by maintaining stable osmotic potential, (iii) maintaining relatively stable electrical conductivity, (iv) enhancing antioxidant systems and maintaining a relatively low level of malondialdehyde, and (v) utilizing ion adjustment by promoting higher accumulation of Ca2+, Mg2+, and Mn2+ in the roots and ensuring higher ratios of K+/Na+, Ca2+/Na+, and Mg2+/Na+ in the leaves. These findings could serve as a valuable reference for future investigations of genetic mechanisms underlying saline-alkali tolerance in Oenothera L. species and provide a foundation for the conservation of germplasm resources, genetic improvement, and application of Oenothera L. species in saline-alkali environments.","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 5","pages":"e70541"},"PeriodicalIF":3.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145207340","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

Transcriptome Analysis Reveals the Mechanism of Early Branching of Balsa (Ochroma lagopus Swartz). Balsa （Ochroma lagopus Swartz）早期分支机制的转录组分析。

IF 3.6 2区生物学

Physiologia plantarum Pub Date : 2025-09-01 DOI: 10.1111/ppl.70509

Yiwen Qian, Xue Bai, Ping Huang, Lun Wang, Wanxian Zhu, Yiqing Su, Mingyong Tang

{"title":"Transcriptome Analysis Reveals the Mechanism of Early Branching of Balsa (Ochroma lagopus Swartz).","authors":"Yiwen Qian, Xue Bai, Ping Huang, Lun Wang, Wanxian Zhu, Yiqing Su, Mingyong Tang","doi":"10.1111/ppl.70509","DOIUrl":"https://doi.org/10.1111/ppl.70509","url":null,"abstract":"Balsa (Ochroma lagopus Swartz), the world's lightest wood and a crucial material in wind turbine blades, holds significant potential to contribute to carbon neutrality efforts when cultivated in tropical areas such as Xishuangbanna, China. However, balsa trees planted in Xishuangbanna exhibit early branching, resulting in reduced wood yield. Our study investigated the pivotal factors in regulating shoot apical dominance and branching by comparing an early-branching cultivar from Indonesia with a late-branching cultivar from Ecuador. Through transcriptome analysis, we found that the decreased expression of genes putatively involved in shoot apical meristem (SAM) activity, including putative orthologs of WUSCHEL (OlWUS-like), SHOOTMERISTEMLESS (OlSTM-like), and CLAVATA3 (OlCLV3-like), was associated with shoot apical dominance and lateral meristem development in early-branch cultivars. Additionally, the increased expression of flowering-related genes, including putative orthologs of FLOWERING LOCUS T (OlFT-like), LEAFY (OlLFY-like), and MADS-box genes, was implicated in flowering meristem formation and branch initiation. Notably, we identified a highly expressed OlFT-like gene that may participate in flowering and branching. Overexpression of OlFT-like in Jatropha curcas inhibited the longitudinal growth of the main stem, promoted branching, and intrinsically decreased the expression of genes involved in the control of meristematic activity (JcWUSa, JcWUSb, and JcCLV3). In summary, OlFT-like was identified as a key regulator of flowering and branching in balsa. Our in-depth understanding of the branching of perennials provides novel insights for the early screening of elite ecotypes and molecular breeding of balsa.","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 5","pages":"e70509"},"PeriodicalIF":3.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145030328","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

HvNF-YB7: A Key Regulator of the HvGSTF13.1-Mediated Glutathione Antioxidant System in Drought-Tolerant Barley. HvNF-YB7: hvgstf13.1介导的大麦谷胱甘肽抗氧化系统的关键调控因子

IF 3.6 2区生物学

Physiologia plantarum Pub Date : 2025-09-01 DOI: 10.1111/ppl.70516

Rui Pan, Badr Alharthi, Tiantian Wu, Lin Wang, Jingqiu Cheng, Sajid Fiaz

{"title":"HvNF-YB7: A Key Regulator of the HvGSTF13.1-Mediated Glutathione Antioxidant System in Drought-Tolerant Barley.","authors":"Rui Pan, Badr Alharthi, Tiantian Wu, Lin Wang, Jingqiu Cheng, Sajid Fiaz","doi":"10.1111/ppl.70516","DOIUrl":"10.1111/ppl.70516","url":null,"abstract":"Drought stress severely constrains barley yield and quality improvement. The Nuclear Factor Y (NF-Y) transcription factor family plays a crucial role in plant stress responses; however, its biological function and molecular regulatory mechanism in barley under drought stress remain unclear. This study integrated evolutionary analysis and transcriptomics to reveal the characteristics of the barley NF-Y gene family. Molecular biology experiments were employed to elucidate the drought response function and regulatory mechanism of the core gene HvNF-YB7. Phylogenetic analysis indicated evolutionary conservation and lineage-specific expansion patterns within the NF-Y gene family. The results found that HvNF-YB7 was induced 9.63-fold by drought in the tolerant wild barley genotype EC_S1. An 8-bp deletion variant in HvNF-YB7's promoter region created a CAAT-box cis-acting element, significantly enhancing its transcriptional activity under drought stress. Functional validation using transgenic overexpression significantly improved drought tolerance (e.g., fresh weight, water content), whereas silencing by virus-induced gene silencing (VIGS) exacerbated damage. This confirmed HvNF-YB7 as a key positive regulator. The yeast two-hybrid (Y2H) and RUBY-luciferase assay revealed that HvNF-YB7 forms a transcriptional complex by interacting with NF-YA3 and then recognizes and activates the CCAAT element in the promoter of HvGSTF13.1, a key gene in the glutathione metabolic pathway. This activation enhances glutathione (GSH)-mediated reactive oxygen species (ROS) scavenging capacity, effectively mitigating drought-induced oxidative damage. Our findings elucidate the \"HvNF-YB7-HvGSTF13.1-GSH\" pathway, which enhances barley drought tolerance, and provide a significant theoretical foundation and genetic resources for understanding its molecular basis.","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 5","pages":"e70516"},"PeriodicalIF":3.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145064802","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

Sucrose Enhances Adventitious Root Formation in Nitraria tangutorum Under Drought Stress via Hormonal Homeostasis and Hydrogen Peroxide Signaling. 蔗糖通过激素稳态和过氧化氢信号促进干旱胁迫下白刺不定根的形成。

IF 3.6 2区生物学

Physiologia plantarum Pub Date : 2025-09-01 DOI: 10.1111/ppl.70521

Dazhuang Qi, Huirong Xiao, Huihui Liu, Linlin Zheng, Yingchun Wang

{"title":"Sucrose Enhances Adventitious Root Formation in Nitraria tangutorum Under Drought Stress via Hormonal Homeostasis and Hydrogen Peroxide Signaling.","authors":"Dazhuang Qi, Huirong Xiao, Huihui Liu, Linlin Zheng, Yingchun Wang","doi":"10.1111/ppl.70521","DOIUrl":"https://doi.org/10.1111/ppl.70521","url":null,"abstract":"The robust adventitious root (AR) system of Nitraria tangutorum facilitates its adaptation to drought stress; however, the molecular mechanisms governing AR formation during drought remain unclear. In this study, we demonstrated that a sucrose (40 g L-1) treatment of N. tangutorum explants for 48 h significantly increased the rate of AR development from 36% in the untreated control group to 100%. Transcriptome analysis revealed sucrose exerts a significant influence on H2O2 homeostasis and hormone signal transduction pathways. Sucrose treatment promoted IAA biosynthesis through the upregulation of TSA, TSB, and YUC genes and suppressed gibberellin (GA) and cytokinin biosynthesis by downregulating CPS, GA3ox, GA20ox, and LOG. Moreover, sucrose induced abscisic acid (ABA) and salicylic acid (SA) accumulation while reducing JA-Ile, and activated H2O2 signaling through the upregulation of RBOH. Exogenous H2O2 (1-8 mM) mimicked the effects of sucrose; however, this effect was abolished by the auxin transport inhibitor TIBA, indicating that the effects of H2O2 depend on auxin signaling. These results reflect that sucrose acts as an energy substrate as well as a signaling molecule to coordinate hormonal interactions and redox signaling during drought-adaptive AR formation.","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 5","pages":"e70521"},"PeriodicalIF":3.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145075950","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

A Comprehensive Analysis of Transcriptomics and Metabolomics Revealed LcMYC4 Regulating LcDXS3 to Promote Terpenoid Biosynthesis in Litsea cubeba. 转录组学和代谢组学综合分析揭示LcMYC4调控LcDXS3促进山苍子萜类生物合成。

IF 3.6 2区生物学

Physiologia plantarum Pub Date : 2025-09-01 DOI: 10.1111/ppl.70518

Jiahui Yang, Feifei Ni, Yicun Chen, Ming Gao, Yunxiao Zhao, Yangdong Wang

{"title":"A Comprehensive Analysis of Transcriptomics and Metabolomics Revealed LcMYC4 Regulating LcDXS3 to Promote Terpenoid Biosynthesis in Litsea cubeba.","authors":"Jiahui Yang, Feifei Ni, Yicun Chen, Ming Gao, Yunxiao Zhao, Yangdong Wang","doi":"10.1111/ppl.70518","DOIUrl":"https://doi.org/10.1111/ppl.70518","url":null,"abstract":"Terpenoids are present in many plant species and confer various biological activities. Litsea cubeba, a traditional Chinese medicinal plant, exhibits antibacterial, antioxidant, and anti-tumor properties, primarily due to its terpenoid constituents. As important secondary metabolites, terpenoid biosynthesis is often influenced by hormonal treatments; however, the molecular mechanisms underlying hormone-induced terpenoid synthesis remain unclear. This study elucidates the regulatory mechanisms of terpenoid biosynthesis in L. cubeba under jasmonic acid (JA) treatment through comprehensive transcriptome analysis and gene functional characterization. Notably, terpene content in L. cubeba fruit increased substantially within 6 h following JA treatment. Transcriptome analysis revealed that JA signaling and terpenoid biosynthesis genes were significantly upregulated and co-expressed following JA induction. LcMYC4, a core gene in JA signal transduction, exhibited an expression pattern similar to that of LcDXS3, a key enzyme in the terpenoid precursor synthesis pathway. Overexpression of LcMYC4 significantly enhanced terpenoid accumulation in L. cubeba, and this increase in LcMYC4 expression was accompanied by a significant upregulation of LcDXS3 expression. Besides, LcMYC4 directly binds the LcDXS3 promoter and activates its expression. In summary, this study provides insight into the mechanisms of JA-induced terpenoid synthesis in L. cubeba.","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 5","pages":"e70518"},"PeriodicalIF":3.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145075969","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

Moisture Matters: How Water Shapes Pest Invasions and Disease Outbreaks? 水分问题：水如何影响害虫入侵和疾病爆发？

IF 3.6 2区生物学

Physiologia plantarum Pub Date : 2025-09-01 DOI: 10.1111/ppl.70525

Maroa Mohammed Al-Aisaee, Muhammad Amjad Ali, Ahmad Nawaz, Abdullah M Al-Sadi, Muhammad Farooq

{"title":"Moisture Matters: How Water Shapes Pest Invasions and Disease Outbreaks?","authors":"Maroa Mohammed Al-Aisaee, Muhammad Amjad Ali, Ahmad Nawaz, Abdullah M Al-Sadi, Muhammad Farooq","doi":"10.1111/ppl.70525","DOIUrl":"https://doi.org/10.1111/ppl.70525","url":null,"abstract":"Water availability and its distribution within plant tissues significantly influence photosynthesis, metabolism, transpiration, and crop susceptibility to pests and diseases. Both abiotic (e.g., drought, salinity, heat) and biotic stresses (e.g., insect pests, pathogens) disrupt plant water status, shaping plant responses across physiological, metabolic, and behavioral levels. These responses are highly variable and depend on stress intensity, plant adaptive capacity, pest or pathogen traits, and interactions with natural predators. This review presents the current understanding of the complex interplay between plant water dynamics, pest infestations, and disease development, with particular emphasis on their combined effects on crop resilience. Although considerable progress has been made in studying plant responses to individual abiotic or biotic stressors, the integrative role of water content in mediating plant-pest-pathogen interactions remains insufficiently explored. This review highlights how water stress can compromise plant structure and function, thereby increasing vulnerability to herbivory and infection. Critical research gaps are identified, particularly concerning simultaneous stress scenarios and the influence of soil properties on water-mediated responses. The review also examines the potential of advanced tools such as genome editing (CRISPR-Cas9), transcriptomics, and precision irrigation technologies for enhancing plant tolerance and reducing reliance on agrochemicals. The potential of biological control for mitigating pest pressure and alleviating water stress is discussed, including the use of natural enemies such as predatory insects and entomopathogenic fungi, which contribute to sustainable pest management. Overall, integrated water and pest management strategies are essential for maintaining crop productivity and resilience, particularly under the increasing challenges posed by climate change.","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 5","pages":"e70525"},"PeriodicalIF":3.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145086834","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