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Recent advances in response to environmental signals during Arabidopsis root development 拟南芥根系发育过程中对环境信号响应的最新进展
IF 6.1 2区 生物学
Plant Physiology and Biochemistry Pub Date : 2024-08-12 DOI: 10.1016/j.plaphy.2024.109037
{"title":"Recent advances in response to environmental signals during Arabidopsis root development","authors":"","doi":"10.1016/j.plaphy.2024.109037","DOIUrl":"10.1016/j.plaphy.2024.109037","url":null,"abstract":"<div><p>Plants grow by anchoring their roots in the soil, acquiring essential water and nutrients for growth, and interacting with other signaling factors in the soil. Root systems are crucial for both the basic growth and development of plants and their response to external environmental stimuli. Under different environmental conditions, the configuration of root systems in plants can undergo significant changes, with their strength determining the plant's ability to adapt to the environment. Therefore, understanding the mechanisms by which environmental factors regulate root development is essential for crop root architecture improvement and breeding for stress resistance. This paper summarizes the research progress in genetic regulation of root development of the model plant <em>Arabidopsis thaliana (L.) Heynh</em>. amidst diverse environmental stimuli over the past five years. Specifically, it focuses on the regulatory networks of environmental signals, encompassing light, energy, temperature, water, nutrients, and reactive oxygen species, on root development. Furthermore, it provides prospects for the application of root architecture improvement in crop breeding for stress resistance and nutrient efficiency.</p></div>","PeriodicalId":20234,"journal":{"name":"Plant Physiology and Biochemistry","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142012097","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
Multivariate characterization of salicylic acid and potassium induced physio-biochemical and phytoremediation responses in quinoa exposed to lead and cadmium contamination 暴露于铅和镉污染的藜麦中水杨酸和钾诱导的生理生化和植物修复反应的多元特征。
IF 6.1 2区 生物学
Plant Physiology and Biochemistry Pub Date : 2024-08-12 DOI: 10.1016/j.plaphy.2024.109029
{"title":"Multivariate characterization of salicylic acid and potassium induced physio-biochemical and phytoremediation responses in quinoa exposed to lead and cadmium contamination","authors":"","doi":"10.1016/j.plaphy.2024.109029","DOIUrl":"10.1016/j.plaphy.2024.109029","url":null,"abstract":"<div><p>The levels of soils pollutants such as lead (Pb) and cadmium (Cd) have significantly increased recently resulting in ecological disturbances and threatening crop production. Various amendments have been employed to enhance the tolerance of crops to withstand Cd and Pb stresses. However, the role of combined application of potassium (K) and of salicylic acid (SA) for Cd and Pb stress mitigation and phytoremediation by quinoa (Chenopodium quinoa Willd) has not been comprehended well. In the present study, the effect of 10 mM K and 0.1 mM SA was tested on the quinoa plants subjected to 250 μM Pb and/or 100 μM Cd. The Pb and Cd treatments were applied separately or together. Phytotoxicity induced by Pb and Cd resulted in drastic decrease (&gt;60%) in chlorophyll contents, stomatal conductance, and plant biomass. The collective treatment of Pb and Cd induced an increase in the concentration of hydrogen peroxide (13-fold) and lipid peroxidation (16-fold) that resulted in a 61% reduction in membrane stability. The application of 10 mM K and/or 0.1 mM SA was remarkable in mitigating the adverse effect of Pb and Cd. The reduction in plant biomass was 17% when 10 mM K and 0.1 mM SA were applied together under the combined treatment of both the metals. The simultaneous application of K and SA effectively mitigated oxidative stress by enhancing the activities of superoxide dismutase, peroxidase, ascorbate peroxidase, and catalase by 12, 10, 7 and 10-folds respectively. The positive effect of K and SA on these attributes resulted in a remarkable reduction in metal accumulation and translocation and lipid peroxidation. The stressed plants supplemented with K and SA exhibited a significant improvement in the membrane stability index, chlorophyll content, and stomatal conductance. This study concluded that the combined application of K and SA could be a good approach for reducing Pb and Cd phytotoxicity in quinoa and enhancing their phytostabilization potential in the contaminated soils.</p></div>","PeriodicalId":20234,"journal":{"name":"Plant Physiology and Biochemistry","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141976428","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
NRT2.1 mediates the reciprocal regulation of nitrate and NO/SNO in seedling leaves of Fraxinus mandshurica and Betula platyphylla NRT2.1 在梣树和桦树幼苗叶片中介导硝酸盐和 NO/SNO 的相互调控
IF 6.1 2区 生物学
Plant Physiology and Biochemistry Pub Date : 2024-08-10 DOI: 10.1016/j.plaphy.2024.109024
{"title":"NRT2.1 mediates the reciprocal regulation of nitrate and NO/SNO in seedling leaves of Fraxinus mandshurica and Betula platyphylla","authors":"","doi":"10.1016/j.plaphy.2024.109024","DOIUrl":"10.1016/j.plaphy.2024.109024","url":null,"abstract":"<div><p>Nitric oxide (NO) and S-nitrosothiol (SNO) are signal molecules and the products of nitrogen metabolism. Nitrate (NO<sub>3</sub><sup>−</sup>) is the main nitrogen source, and nitrate transporters (NRTs) are responsible for NO<sub>3</sub><sup>−</sup> absorption or transport. However, the interactive effect between NO<sub>3</sub><sup>−</sup>/NRT and NO/SNO in tree plants remains ambiguous. In the present study, 25 mmol L<sup>−1</sup> NO<sub>3</sub><sup>−</sup> and 1 mmol L<sup>−1</sup> NO donor sodium nitroprusside (SNP) treatment that was conducted for 24 h enhanced NO/SNO and NO<sub>3</sub><sup>−</sup> metabolism, whereas 2.5 mmol L<sup>−1</sup> NO<sub>3</sub><sup>−</sup> and 80 μmol L<sup>−1</sup> N6022 (a compound that increases SNO content) treatment reduced them in seedling leaves of <em>Fraxinus mandshurica</em> and <em>Betula platyphylla</em>. Among the nine NRT family members examined, the gene expression level of <em>NRT2.1</em> had a greater response to NO/SNO and NO<sub>3</sub><sup>−</sup> treatment in the seedling leaves of <em>F. mandshurica</em> and <em>B. platyphylla</em>. Meanwhile, <em>FmNRT2.1</em> mediated NO and SNO production in seedling leaves of <em>F. mandshurica</em> using <em>Agrobacterium</em>-mediated transient transformation. These findings shed light on the reciprocal regulation between NO<sub>3</sub><sup>−</sup> and NO/SNO in seedlings of <em>F. mandshurica</em> and <em>B. platyphylla</em>, and NRT2.1 may act as a key regulatory hub.</p></div>","PeriodicalId":20234,"journal":{"name":"Plant Physiology and Biochemistry","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141964474","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
Genome-wide analysis of Citrus medica ABC transporters reveals the regulation of fruit development by CmABCB19 and CmABCC10 柑橘 ABC 转运体的全基因组分析揭示了 CmABCB19 和 CmABCC10 对果实发育的调控作用
IF 6.1 2区 生物学
Plant Physiology and Biochemistry Pub Date : 2024-08-10 DOI: 10.1016/j.plaphy.2024.109027
{"title":"Genome-wide analysis of Citrus medica ABC transporters reveals the regulation of fruit development by CmABCB19 and CmABCC10","authors":"","doi":"10.1016/j.plaphy.2024.109027","DOIUrl":"10.1016/j.plaphy.2024.109027","url":null,"abstract":"<div><p>ATP-binding cassette (ABC) transporters are vital for plant growth and development as they facilitate the transport of essential molecules. Despite the family's significance, limited information exists about its functional distinctions in <em>Citrus medica.</em> Our study identified 119 genes encoding ABC transporter proteins in the <em>C. medica</em> genome. Through an evolutionary tree and qPCR analysis, two ABC genes, <em>CmABCB19</em> and <em>CmABCC10</em>, were implicated in <em>C. medica</em> fruit development, showing upregulation in normal fruits compared to malformed fruits. CmABCB19 was found to localize to the plasma membrane of <em>Nicotiana tabacum</em>, exhibiting indole-3-acetic acid (IAA) efflux activity in the yeast mutant strain <em>yap1</em>. CmABCC10, a tonoplast-localized transporter, exhibited efflux of diosmin, nobiletin, and naringin, with rutin influx in strain <em>ycf1</em>. Transgenic expression of <em>CmABCB19</em> and <em>CmABCC10</em> in <em>Arabidopsis thaliana</em> induced alterations in auxin and flavonoid content, impacting silique and seed size. This effect was attributed to the modulation of structural genes in the auxin biosynthesis (<em>YUC5/9, CYP79B2, CYP83B1, SUR1</em>) and flavonoid biosynthesis (<em>4CL2/3, CHS, CHI, FLS1/3</em>) pathways. In summary, the functional characterization of <em>CmABCB19</em> and <em>CmABCC10</em> illuminates auxin and flavonoid transport, offering insights into their interplay with biosynthetic pathways and providing a foundation for understanding the transporter's role in fruit development.</p></div>","PeriodicalId":20234,"journal":{"name":"Plant Physiology and Biochemistry","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141998406","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
Comparative proteomic analyses of potato leaves from field-grown plants grown under extremely long days 超长日照下田间种植马铃薯叶片的比较蛋白质组分析
IF 6.1 2区 生物学
Plant Physiology and Biochemistry Pub Date : 2024-08-10 DOI: 10.1016/j.plaphy.2024.109032
{"title":"Comparative proteomic analyses of potato leaves from field-grown plants grown under extremely long days","authors":"","doi":"10.1016/j.plaphy.2024.109032","DOIUrl":"10.1016/j.plaphy.2024.109032","url":null,"abstract":"<div><p>There are limited molecular data and few biomarkers available for studies of field-grown plants, especially for plants grown during extremely long days. In this study we present quantitative proteomics data from 3 years of field trials on potato, conducted in northern and southern Sweden and analyze over 3000 proteins per year of the study and complement the proteomic analysis with metabolomic and transcriptomic analyses. Small but consistent differences linked to the longer days (an average of four more hours of light per day) in northern Sweden (20 h light/day) compared to southern Sweden can be observed, with a high correlation between the mRNA determined by RNA-seq and protein abundances. The majority of the proteins with differential abundances between northern and southern Sweden could be divided into three groups: metabolic enzymes (especially GABA metabolism), proteins involved in redox metabolism, and hydrolytic enzymes. The observed differences in metabolic enzyme abundances corresponded well with untargeted metabolite data determined by GC and LC mass-spectrometry. We also analyzed differences in protein abundance between potato varieties that performed relatively well in northern Sweden in terms of yield with those that performed relatively less well. This comparison indicates that the proteins with higher abundance in the high-yield quotient group are more anabolic in their character, whereas the proteins with lower abundance are more catabolic. Our results create a base of information about potato “field-omics” for improved understanding of physiological and molecular processes in field-grown plants, and our data indicate that the potato plant is not generally stressed by extremely long days.</p></div>","PeriodicalId":20234,"journal":{"name":"Plant Physiology and Biochemistry","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0981942824007009/pdfft?md5=1a87dd310ea779c0de46846c4207f01a&pid=1-s2.0-S0981942824007009-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142044885","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
Genome-wide identification of the AP2/ERF gene family from Limonium bicolor and functional characterization of LbAP2/ERF32 under salt stress 盐胁迫下 Limonium bicolor 的 AP2/ERF 基因家族的全基因组鉴定和 LbAP2/ERF32 的功能特征。
IF 6.1 2区 生物学
Plant Physiology and Biochemistry Pub Date : 2024-08-09 DOI: 10.1016/j.plaphy.2024.109035
{"title":"Genome-wide identification of the AP2/ERF gene family from Limonium bicolor and functional characterization of LbAP2/ERF32 under salt stress","authors":"","doi":"10.1016/j.plaphy.2024.109035","DOIUrl":"10.1016/j.plaphy.2024.109035","url":null,"abstract":"<div><p>AP2<em>/</em>ERF transcription factors (TFs) play important roles in plant growth and development, plant morphogenesis and response to environmental stresses. However, their biological roles in recretohalophytes are still not fully revealed. <em>Limonium bicolor</em> L. is a typical recretohalophyte, which secretes excessive salt ions through the salt glands on the epidermis. Here, 64 <em>LbAP2/ERF</em> genes were identified in <em>L. bicolor</em> genome, which were unevenly distributed on the eight chromosomes. <em>Cis</em>-elements related to growth and development, stress response and phytohormone response are distributed in multiple <em>LbAP2/ERF</em> promoters. Expression analysis indicated that <em>LbAP2/ERF</em> genes responsed to NaCl, PEG and ABA. And the salt gland density, salt secretion of leaves and overall salt tolerance of <em>LbAP2/ERF32</em> silenced lines were significantly reduced. In agreement, the genes related to salt gland development and ion transport were significantly changed in <em>LbAP2/ERF32</em>-silenced lines. Our findings provided fundamental information on the structure and evolutionary relationship of <em>LbAP2/ERF</em> gene family in salt gland development and salt secretion of <em>L. bicolor</em> and gave theoretical guideline for further functional study of <em>LbAP2/ERF</em> genes in response to abiotic stress.</p></div>","PeriodicalId":20234,"journal":{"name":"Plant Physiology and Biochemistry","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141988694","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
Changes in hemicellulose metabolism in banana peel during fruit development and ripening 果实发育和成熟过程中香蕉皮中半纤维素代谢的变化
IF 6.1 2区 生物学
Plant Physiology and Biochemistry Pub Date : 2024-08-08 DOI: 10.1016/j.plaphy.2024.109025
{"title":"Changes in hemicellulose metabolism in banana peel during fruit development and ripening","authors":"","doi":"10.1016/j.plaphy.2024.109025","DOIUrl":"10.1016/j.plaphy.2024.109025","url":null,"abstract":"<div><p>Hemicellulose is key in determining the fate of plant cell wall in almost all growth and developmental stages. Nevertheless, there is limited knowledge regarding its involvement in the development and ripening of banana fruit. This study investigated changes in the temporal-spatial distribution of various hemicellulose components, hemicellulose content, activities of the main hydrolysis enzymes, and transcription level of the main hemicellulose-related gene families in banana peels. Both hemicellulose and xylan contents were positively correlated to the fruit firmness observed in our previous study. On the contrary, the xylanase activity was negatively correlated to xylan content and the fruit firmness. The vascular bundle cells, phloem, and cortex of bananas are abundant in xyloglucan, xylan, and mannan contents. Interestingly, the changes in the signal intensity of the CCRC-M104 antibody recognizing non-XXXG type xyloglucan are positively correlated to hemicellulose content. According to RNA-Seq analysis, xyloglucan and xylan-related genes were highly active in the early stages of growth, and the expression of <em>MaMANs</em> and <em>MaXYNs</em> increased as the fruit ripened. The abundance of plant hormonal and growth-responsive <em>cis</em>-acting elements was detected in the 2 kb upstream region of hemicellulose-related gene families. Interaction between hemicellulose and cell wall-specific proteins and MaKCBP1/2, MaCKG1, and MaHKL1 was found. The findings shed light on cell wall hemicellulose's role in banana fruit development and ripening, which could improve nutrition, flavor, and reduce postharvest fruit losses.</p></div>","PeriodicalId":20234,"journal":{"name":"Plant Physiology and Biochemistry","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141978792","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
Comparative phenotypic and transcriptomic analysis reveals genotypic differences in nitrogen use efficiency in sorghum 表型和转录组比较分析揭示了高粱氮利用效率的基因型差异。
IF 6.1 2区 生物学
Plant Physiology and Biochemistry Pub Date : 2024-08-08 DOI: 10.1016/j.plaphy.2024.109028
{"title":"Comparative phenotypic and transcriptomic analysis reveals genotypic differences in nitrogen use efficiency in sorghum","authors":"","doi":"10.1016/j.plaphy.2024.109028","DOIUrl":"10.1016/j.plaphy.2024.109028","url":null,"abstract":"<div><p>Sorghum (<em>Sorghum</em> <em>bicolor</em> L.), a model for C<sub>4</sub> grass and an emerging biofuel crop, is known for its robust tolerance to low input field. However, the focus on enhancing nitrogen use efficiency (NUE) in sorghum under low nitrogen (N) conditions has been limited. This study conducted hydroponic experiments and field trials with two sorghum inbred lines, contrasting in their N efficiency: the N-efficient (398B) and the N-inefficient (CS3541) inbred lines. The aim was to analyze the key factors influencing NUE by integrating phenotypic, physiological, and multi-omics approaches under N deficiency conditions. The field experiments revealed that 398B displayed superior NUE and yield performance compared to CS3541. In hydroponic experiments, the growth of 398B outperformed CS3541 following N deficiency, attributing to its higher photosynthetic and sustaining activity of N metabolism-related enzymes. Genomic and transcriptomic integration highlighted fewer genomic diversities and alterations in global gene expression in 398B, which were likely contributor to its high NUE. Additionally, co-expression network analysis suggested the involvement of key genes which impact N uptake efficiency (NUpE) and N utilization efficiency (NUtE) in both lines, such as an N transporter, <em>Sobic.003G371000.v3.2leaf</em> <em>(NPF5.10)</em> and a transcription factor, <em>Sobic.002G202800.v3.2leaf</em> <em>(WRKY)</em> in bolstering NUE under low-N stress. The findings collectively suggested that 398B achieved higher NUpE and NUtE, effectively coordinating photosynthesis and N metabolism to enhance NUE. The candidate genes regulating N uptake and utilization efficiencies could provide valuable insights for developing sorghum breeds with improved NUE, contributing to sustainable agricultural practices and bioenergy crop development.</p></div>","PeriodicalId":20234,"journal":{"name":"Plant Physiology and Biochemistry","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141988693","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
Melatonin and copper oxide nanoparticles synergistically mitigate clubroot disease and enhance growth dynamics in Brassica rapa 褪黑素和氧化铜纳米颗粒可协同缓解甘蓝型大白菜的根瘤病并增强其生长动力。
IF 6.1 2区 生物学
Plant Physiology and Biochemistry Pub Date : 2024-08-08 DOI: 10.1016/j.plaphy.2024.109020
{"title":"Melatonin and copper oxide nanoparticles synergistically mitigate clubroot disease and enhance growth dynamics in Brassica rapa","authors":"","doi":"10.1016/j.plaphy.2024.109020","DOIUrl":"10.1016/j.plaphy.2024.109020","url":null,"abstract":"<div><p>Clubroot, a devastating soil borne disease affecting 30%∼50% of Brassicaceae crops worldwide, lacks effective control measures. In the present study, we explored the potential of melatonin (MT) and copper oxide nanoparticle (CuO-NPs) in mitigating clubroot severity in the <em>Brassica rapa</em> ssp. <em>p</em><em>ekinensis</em>. Following 18 h priming with MT, CuO-NPs, or both seeds were grown in controlled environment using synthetic potting mix. Inoculated with <em>Plasmodiophora brassicae</em> spores on 5th day, followed by a soil drench phyto-nano treatment with a week interval. Plants were assessed for various health and growth indices including disease, biometrics, photosynthesis, reactive oxygen species (ROS), antioxidant enzyme activity, hormones and genes expression at onset of secondary clubroot infection using established protocols. Statistical analysis employed ANOVA with Fisher's LSD for significance assessment (<em>P</em> &lt; 0.05). Our results revealed that seed priming with both MT (50 μMol/L) and CuO-NPs (200 mg/L), followed by soil drenching significantly reduced clubroot incidence (38%) and disease index (57%), compared to control treatments. This synergistic effect was associated with enhanced plant growth (shoots: 48% and roots: 59%). Plants treated with both MT and CuO-NPs showed robust antioxidant defenses, significantly increased superoxide dismutase (SOD (25/29%)), catalase (CAT (83/55%)), and ascorbate peroxidase (APX (83/46%)) activity in both shoots/roots, respectively, compared to infected control. Notably, salicylic acid and jasmonic acid levels doubled in treated plants, while stress hormone abscisic acid (ABA) decreased by 80% in roots and 21% in shoots. Gene expression analysis corroborated these findings, showing that the combined treatment activated antioxidant defense genes (<em>SOD, APX</em> and <em>CAT</em>) by 1.9–7.2-fold and upregulated hormone signaling genes <em>JAZ1</em> (7.8-fold), <em>MYC2</em> (3.9-fold) and <em>SABP2</em> (36-fold). Conversely, ABA biosynthesis genes (<em>ABA1</em> and <em>NCED1</em>) were downregulated up to 7.2-fold, while plant resistance genes <em>NPR1, PRB1</em> and <em>PDF1.2</em> were dramatically increased by up to 6.3-fold compared to infected plants. Overall, our combined treatment approach significantly reduces clubroot severity in <em>B. rapa</em> via enhanced antioxidant defenses, improved ROS scavenging, coordinated hormonal regulation and increased pathogen response genes. This study offers promising strategy for developing effective control measures against clubroot in susceptible cruciferous crops.</p></div>","PeriodicalId":20234,"journal":{"name":"Plant Physiology and Biochemistry","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0981942824006880/pdfft?md5=934107b3b93529dfb7c18a8c8198ffa5&pid=1-s2.0-S0981942824006880-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141917393","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
Regulation of ginseng adventitious root growth in Panax ginseng by the miR156-targeted PgSPL24-09 transcription factors 人参不定根生长受 miR156 靶向 PgSPL24-09 转录因子的调控
IF 6.1 2区 生物学
Plant Physiology and Biochemistry Pub Date : 2024-08-08 DOI: 10.1016/j.plaphy.2024.109026
{"title":"Regulation of ginseng adventitious root growth in Panax ginseng by the miR156-targeted PgSPL24-09 transcription factors","authors":"","doi":"10.1016/j.plaphy.2024.109026","DOIUrl":"10.1016/j.plaphy.2024.109026","url":null,"abstract":"<div><p>MicroRNA (miRNA) is a class of non-coding endogenous small-molecule, single-stranded RNAs, and it is involved in post-transcriptional gene expression regulation in plants and plays an important role in plant growth and development. Among them, miRNA156 regulates members of target <em>SPL</em> gene family and thus participates in plant growth and development, hormonal response and adversity stress. However, it has not been reported in ginseng. In this study, based on the previous analysis of the <em>SPL</em> gene family, the age-related and stably expressed <em>SPL</em> gene <em>PgSPL24-09</em> was obtained in roots. The binding site of miRNA156 to this gene was analyzed using target gene prediction tools, and the interactions between miRNA156 and <em>PgSPL24-09</em> gene were verified by dual luciferase reporter gene assay and RT-qPCR. At the same time, miRNA156 silencing vector and overexpression vector were constructed and transformed into ginseng adventitious roots and <em>Arabidopsis thaliana</em> to analyze the molecular mechanism of miRNA156-SPL module in regulating the growth of ginseng adventitious roots. This study provides a theoretical basis for the in-depth study of the molecular role of miRNAs in ginseng growth, and also lays the foundation for the study of the role of miRNA156-SPL module in regulating the growth and development of ginseng.</p></div>","PeriodicalId":20234,"journal":{"name":"Plant Physiology and Biochemistry","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141964422","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
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