Acta Physiologiae Plantarum最新文献_第3页

Blue light is a key factor in regulating stomatal movement, transpiration rate and ABA metabolism under varying vapour pressure 蓝光是调节不同蒸汽压下气孔运动、蒸腾速率和ABA代谢的关键因子

IF 2.2 4区生物学

Acta Physiologiae Plantarum Pub Date : 2025-06-27 DOI: 10.1007/s11738-025-03818-0

Sheona Noemi Innes, Sara Brunborg Jakobsen, Rikke Bryn Røsåsen, Haider Ali, Knut Asbjørn Solhaug, Jorunn Elisabeth Olsen, Sissel Torre

{"title":"Blue light is a key factor in regulating stomatal movement, transpiration rate and ABA metabolism under varying vapour pressure","authors":"Sheona Noemi Innes, Sara Brunborg Jakobsen, Rikke Bryn Røsåsen, Haider Ali, Knut Asbjørn Solhaug, Jorunn Elisabeth Olsen, Sissel Torre","doi":"10.1007/s11738-025-03818-0","DOIUrl":"10.1007/s11738-025-03818-0","url":null,"abstract":"<div>Vapour pressure deficit (VPD) and blue light (BL) are import signals for stomatal regulation and highly relevant during cultivation of economically important crops such as cucumber in controlled environments. However, the information about combined effects of VPD and BL and the regulation of abscisic acid (ABA) in this respect, is limited and seems to vary between species. This study investigated how moderate (1.12 kPa) or low (0.28 kPa) VPD combined with 5% or 30% BL affect the foliar ABA metabolism, transpiration rate, nutrient uptake, and growth in well-watered cucumber plants (Cucumis sativus ‘Quatro’). Additional BL, regardless of VPD, resulted in a decrease in the nighttime ABA content (52%), as well as increased adaxial stomatal density (8–19%), transpiration rate during the day (40–50%) and foliar nitrogen content (30%). ABA regulation was unaffected by VPD, but the BL levels during the day influenced the ABA inactivation at night; both the transpiration rate and the ABA-glucose ester (ABA-GE) content then increased in 30% BL compared to 5% BL. An increase in starch degradation due to additional BL led to higher content of the transport carbohydrate raffinose in source leaves and increased the fruit appearance rate (fruit day−1) in low VPD but reduced it in moderate VPD. This study provides novel insight into the regulation of ABA under different VPDs and BL proportions in cucumber, and reveals that under well-watered conditions, BL is a stronger determinant of stomatal aperture regulation than ABA. Also, a combination of high VPD and high BL can act as a weak stressor and affect cucumber growth and yield.</div>","PeriodicalId":6973,"journal":{"name":"Acta Physiologiae Plantarum","volume":"47 7","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11738-025-03818-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145169418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Bioaccumulation of lead and oxidative stress response in Santolina chamaecyparissus 铅的生物积累与氧化应激反应

IF 2.2 4区生物学

Acta Physiologiae Plantarum Pub Date : 2025-06-18 DOI: 10.1007/s11738-025-03817-1

Facundo Cortez, Agustina Orden, Mónica Bellozas Reinhard, Miguel Ángel Cantarelli, Laura S. Mazzaferro, Carlos Alberto Moldes

{"title":"Bioaccumulation of lead and oxidative stress response in Santolina chamaecyparissus","authors":"Facundo Cortez, Agustina Orden, Mónica Bellozas Reinhard, Miguel Ángel Cantarelli, Laura S. Mazzaferro, Carlos Alberto Moldes","doi":"10.1007/s11738-025-03817-1","DOIUrl":"10.1007/s11738-025-03817-1","url":null,"abstract":"<div>This study evaluates lead (Pb) bioaccumulation in Santolina chamaecyparissus, an aromatic plant from the Mediterranean and North Africa, known for its therapeutic uses. The research focuses on the plant response to Pb exposure, assessing oxidative stress, antioxidant enzyme activity, and the plant potential for phytoremediation. Seedlings were grown in a controlled greenhouse and exposed to treatments ranging from 0 to 2000 mg Pb kg−1 of substrate for 160 days. Pb was quantified in leaves and plant substrates, and plant growth, lipid peroxidation, and the activity of antioxidant enzymes—catalase, ascorbate peroxidase, and guaiacol peroxidase—were assessed. Statistical analysis, including univariate and multivariate approaches, revealed that S. chamaecyparissus demonstrates significant tolerance to Pb, with oxidative stress and antioxidant responses only at 2000 mg Pb kg−1 substrate. Lead treatment of 250 mg Pb kg−1 substrate showed higher Pb accumulation factor compared to high Pb levels (500–2000 mg Pb kg−1 substrate). The findings suggest the plant potential for soil decontamination and the efficacy of multivariate analysis in environmental stress research.</div>","PeriodicalId":6973,"journal":{"name":"Acta Physiologiae Plantarum","volume":"47 6","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Responses of tropical legumes to nickel stress: impacts on growth, foliar structure, and nitrogen metabolism 热带豆科植物对镍胁迫的响应：对生长、叶片结构和氮代谢的影响

IF 2.2 4区生物学

Acta Physiologiae Plantarum Pub Date : 2025-06-13 DOI: 10.1007/s11738-025-03814-4

Tassia Caroline Ferreira, Patricia Fernanda Rosalem, Maiara Luzia Grigoli Olivio, Beatriz Silvério dos Santos, Nayane Cristina Pires Bomfim, Aline Renee Coscione, Aline Redondo Martins, Liliane Santos de Camargos

{"title":"Responses of tropical legumes to nickel stress: impacts on growth, foliar structure, and nitrogen metabolism","authors":"Tassia Caroline Ferreira, Patricia Fernanda Rosalem, Maiara Luzia Grigoli Olivio, Beatriz Silvério dos Santos, Nayane Cristina Pires Bomfim, Aline Renee Coscione, Aline Redondo Martins, Liliane Santos de Camargos","doi":"10.1007/s11738-025-03814-4","DOIUrl":"10.1007/s11738-025-03814-4","url":null,"abstract":"<div>Nickel, although an essential micronutrient at low concentrations, can exert detrimental effects on plant growth and development when present in excess, particularly due to anthropogenic activities like industrial processes. Leguminous plants, including Calopogonium mucunoides (Calopo) and Canavalia ensiformis (Jack bean), renowned for their nitrogen-fixing symbioses with rhizobia and their potential to enhance soil fertility, were investigated for their differential responses to moderate Ni stress. This study examined the impact of Ni on biomass production, Ni accumulation, leaf anatomy, and nitrogen metabolism in these legumes. Results demonstrated contrasting responses: Jack bean exhibited higher Ni accumulation in both leaves and roots, concomitant with enhanced growth and pronounced anatomical modifications, suggesting greater tolerance. In contrast, Calopo displayed significant alterations in root protein and amino acid content. Principal component analysis corroborated these findings, highlighting distinct acclimatization strategies employed by each species. This research provides valuable insights into the complex impact of Ni on plant biodiversity, emphasizing the importance of investigating understudied species to comprehend the diverse physiological responses to trace element stress.</div>","PeriodicalId":6973,"journal":{"name":"Acta Physiologiae Plantarum","volume":"47 6","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Determination of gene expression of some essential oil components and some genes responsible for the synthesis of these components in Mentha species harvested in different phenological periods 不同物候期采收的薄荷精油成分及其合成相关基因表达的测定

IF 2.2 4区生物学

Acta Physiologiae Plantarum Pub Date : 2025-06-10 DOI: 10.1007/s11738-025-03815-3

Civan Çelik, Ümmü Tuğlu, İsa Telci, Yaşar Karakurt, Temel Özek, Gülmira Özek

{"title":"Determination of gene expression of some essential oil components and some genes responsible for the synthesis of these components in Mentha species harvested in different phenological periods","authors":"Civan Çelik, Ümmü Tuğlu, İsa Telci, Yaşar Karakurt, Temel Özek, Gülmira Özek","doi":"10.1007/s11738-025-03815-3","DOIUrl":"10.1007/s11738-025-03815-3","url":null,"abstract":"<div>Peppermint (Mentha × piperita) is widely recognized as a significant medicinal plant worldwide. This study aimed to evaluate the gene expression levels of key genes involved in essential oil biosynthesis—limonene synthase (ls), limon-3-hydroxylase (l3oh), trans-isopiperitenol dehydrogenase (ipd), isopiperitenone reductase (ipr), menthol dehydrogenase (mdeh), and menthofuran synthase (mfs)—as well as the changes in various essential oil components across phenological stages in selected mint samples. The results revealed that the expression levels of genes associated with terpene biosynthesis varied among peppermint varieties. Additionally, seasonal variations were observed in the essential oil components of the studied varieties. While changes in the main chemical constituents were not always consistent with gene expression levels, some terpenes present in lower concentrations exhibited patterns that aligned with gene activity. Moreover, varieties displaying higher seasonal averages of gene expression levels were found to have higher overall essential oil content. This suggests that the genes studied play a broader role in the synthesis of terpene groups rather than being limited to the regulation of specific primary constituents. These findings provide important insights into the genetic and biochemical mechanisms regulating essential oil composition in mint. Such knowledge can contribute to the development of targeted breeding and cultivation strategies aimed at enhancing the medicinal and commercial value of peppermint.</div>","PeriodicalId":6973,"journal":{"name":"Acta Physiologiae Plantarum","volume":"47 6","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11738-025-03815-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Metabolomic profiling unravels the role of sphingolipid pathways in spot blotch resistance in wheat 代谢组学分析揭示了鞘脂途径在小麦斑点病抗性中的作用

IF 2.2 4区生物学

Acta Physiologiae Plantarum Pub Date : 2025-06-10 DOI: 10.1007/s11738-025-03813-5

Sagar Yadav, Saborni Maiti, Swapnil Mundhe, Narendra Kadoo

{"title":"Metabolomic profiling unravels the role of sphingolipid pathways in spot blotch resistance in wheat","authors":"Sagar Yadav, Saborni Maiti, Swapnil Mundhe, Narendra Kadoo","doi":"10.1007/s11738-025-03813-5","DOIUrl":"10.1007/s11738-025-03813-5","url":null,"abstract":"<div>Spot blotch, caused by the soil- and air-borne fungal pathogen Bipolaris sorokiniana, is a major threat to wheat production. The disease is reaching epidemic proportions in wheat-growing areas, particularly in South Asia, South America, Africa, and Australia. In India, over 25 million hectares of wheat-growing area is threatened by this disease. A systematic study of metabolites can provide insights into the molecular basis of this disease. In the present study, we evaluated the impact of B. sorokiniana inoculation on two wheat varieties, Chirya3 (resistant to spot blotch) and DDK1025 (susceptible to spot blotch). We performed time-course non-targeted metabolite profiling of the pathogen-inoculated and mock-inoculated plants using liquid chromatography coupled with high-resolution mass spectrometry (LC-HRMS). Multivariate analysis was performed to construct a comprehensive statistical workflow, which led to the defined “metabolomic phenotypes”. Modeling by Orthogonal Projection to Latent Structures-Discriminant Analysis (OPLS-DA) revealed significant metabolites in responses of the resistant and susceptible varieties to pathogen inoculation. A total of 699 metabolites displayed significant variations during the progression of infection. B. sorokiniana-inoculated Chirya3 exhibited high levels of some metabolites, such as sphingolipids, cysteine, phenylalanine, shikimates, etc. The study revealed that sphingolipid pathways are critical in resistance mechanisms contributing to enhanced lignification and disease resistance in wheat.</div>","PeriodicalId":6973,"journal":{"name":"Acta Physiologiae Plantarum","volume":"47 6","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Enhancing crop resilience with melatonin seed treatment in horticulture crops 褪黑素在园艺作物种子处理中提高作物抗逆性

IF 2.2 4区生物学

Acta Physiologiae Plantarum Pub Date : 2025-06-09 DOI: 10.1007/s11738-025-03808-2

Vinaykumar Rachappanavar

{"title":"Enhancing crop resilience with melatonin seed treatment in horticulture crops","authors":"Vinaykumar Rachappanavar","doi":"10.1007/s11738-025-03808-2","DOIUrl":"10.1007/s11738-025-03808-2","url":null,"abstract":"<div>Recent shifts in climate patterns have exerted a profound impact on farmers’ earnings, resulting in diminished crop yields. To counteract these diverse environmental stressors, novel strategies have been developed to enhance plants’ ability to tolerate stress. Among them, the application of phytohormones to plants under stress conditions has gained significant importance recently. This necessitates the utilization of phytohormones or biostimulators in agricultural practices, which demonstrate a positive influence on plant growth regulation and fortification of resilience through augmentation of a various biochemical, physiological, and molecular processes. Hence, exploring the effects and mechanisms of these phytohormones is of paramount importance for cultivating enhanced stress tolerance. Among these phytohormones, melatonin (MT) has shown substantial evidence of bolstering seed germination even under various abiotic stressors. Additionally, MT seed treatment has been observed to enhance root morphology, seed germination, photosynthesis, seedling growth, delay leaf senescence, boost antioxidant efficiency, facilitate fruit maturation, and promote cellular and tissue-level histogenesis. Consequently, this study aims to delve into the impacts of MT seed treatment on its augmentation of seed germination under abiotic stress conditions, focusing on the modification of hormonal and genetic expressions. Our primary objective is to investigate the comprehensive spectrum of effects triggered by MT in enhancing seed germination, establishing seedlings, promoting plant development, and maintaining homeostasis amid abiotic stress conditions. </div>","PeriodicalId":6973,"journal":{"name":"Acta Physiologiae Plantarum","volume":"47 6","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145142741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Nitrous oxide induces polyploidy in grapevine 氧化亚氮诱导葡萄多倍体

IF 2.2 4区生物学

Acta Physiologiae Plantarum Pub Date : 2025-06-07 DOI: 10.1007/s11738-025-03809-1

Ayşe Özer, Zeki Kara

{"title":"Nitrous oxide induces polyploidy in grapevine","authors":"Ayşe Özer, Zeki Kara","doi":"10.1007/s11738-025-03809-1","DOIUrl":"10.1007/s11738-025-03809-1","url":null,"abstract":"<div>The global grape breeding field requires the development of grape varieties that can meet the ever-changing environmental and market demands. The development of polyploid forms in viticulture has recently received more attention as a means of coping with different environmental stresses and improving crop quality. In this study, the effectiveness of nitrous oxide (N2O) treatments in inducing of autopolyploidization in the germinated seeds of Vitis vinifera L. cultivars (cvs.) Trakya İlkeren (TI), Ekşi Kara (EK) and Gök Üzüm (GU) was investigated. Germinated seeds were exposed to N2O at different pressures (2.5 bar, 5 bar, 7.5 bar, and 10 bar) and durations (24-h, 48-h and 72-h) and sown in trays to obtain seedlings. The effects of N2O treatments were firstly evaluated by considering the survival rate (%), stomata and chloroplast observations in seedlings. According to the data obtained, flow cytometry (FC) analysis was performed in plants with large stomata size and high number of chloroplasts. As a result of the analysis, it was determined that a GU seedling treated with 24-h 7.5 bar of N2O was triploid or near-triploid (aneuploid). The nuclear DNA (nDNA) content of this seedling was calculated as 1.57 pg/2C, and the 1C genome size was calculated as 768 Mbp. It was determined that N2O was effective in inducing polyploidy in grapevine depending on the genotype. Considering the limiting conditions of our study, the induction rate of polyploidy by N2O in Vitis vinifera L. grape cultivars was found to be lower than 1/1000.</div>","PeriodicalId":6973,"journal":{"name":"Acta Physiologiae Plantarum","volume":"47 6","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11738-025-03809-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145142526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Physiological, biochemical and proteomic analyses of root response of maize to short-term osmotic stress 玉米根系对短期渗透胁迫的生理生化和蛋白质组学分析

IF 2.2 4区生物学

Acta Physiologiae Plantarum Pub Date : 2025-06-06 DOI: 10.1007/s11738-025-03811-7

Nannan Wang, Man Zhang, Liangjie Niu, Monica Scali, Weili Huang, Wei Wang

{"title":"Physiological, biochemical and proteomic analyses of root response of maize to short-term osmotic stress","authors":"Nannan Wang, Man Zhang, Liangjie Niu, Monica Scali, Weili Huang, Wei Wang","doi":"10.1007/s11738-025-03811-7","DOIUrl":"10.1007/s11738-025-03811-7","url":null,"abstract":"<div>Drought is a major abiotic stress that adversely impacts on crop productivity and global food security. Proteomics greatly facilitates the study of stress response mechanism in crop plants by identifying new stress-responsive proteins. Currently, most proteomic studies on osmotic stress response in cereal crops, such as maize, have mainly focused on medium to long-term scales, but few studies investigated the early osmotic stress response. In this study, maize roots were subjected to 30 min 10% polyethylene glycol (PEG)-6000 induced osmotic stress, the physiological, biochemical and proteomic changes were analyzed. The results showed that short-term osmotic stress led to the significant increase of reactive oxygen species (ROS, especially O2−) level, the content of thiobarbituric acid reactive substances (TBARS) and proline, and the activity of catalase (CAT) and superoxide dismutase (SOD) in maize root tips. Proteomics analysis identified a set of 20 stress-responsive proteins, which were mainly involved in antioxidative stress and energy metabolism (e.g., ATP synthase), and most of them were more abundant under osmotic stress. Obviously, the antioxidant system and energy metabolism pathway play critical roles in the early root response to short-term osmotic stress. Our work provides insights into the mechanisms underlying the early response of plants to osmotic stress. </div>","PeriodicalId":6973,"journal":{"name":"Acta Physiologiae Plantarum","volume":"47 6","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145142593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

The growth promotion of Arabidopsis thaliana by Serratia sp. H6 requires the metabolic stress sensor SNF1-related protein kinase 1 (SnRK1) Serratia sp. H6促进拟南芥生长需要代谢应激传感器snf1相关蛋白激酶1 （SnRK1）

IF 2.2 4区生物学

Acta Physiologiae Plantarum Pub Date : 2025-06-05 DOI: 10.1007/s11738-025-03812-6

Diana Vázquez-Lemus, Esmeralda Guadalupe Rodríguez-Cuevas, Alma Alejandra Hernández-Esquivel, Elda Castro-Mercado, Homero Reyes-de la Cruz, Jesús Campos-García, José López-Bucio, Ernesto García-Pineda

{"title":"The growth promotion of Arabidopsis thaliana by Serratia sp. H6 requires the metabolic stress sensor SNF1-related protein kinase 1 (SnRK1)","authors":"Diana Vázquez-Lemus, Esmeralda Guadalupe Rodríguez-Cuevas, Alma Alejandra Hernández-Esquivel, Elda Castro-Mercado, Homero Reyes-de la Cruz, Jesús Campos-García, José López-Bucio, Ernesto García-Pineda","doi":"10.1007/s11738-025-03812-6","DOIUrl":"10.1007/s11738-025-03812-6","url":null,"abstract":"<div>The SNF1 (sucrose non-fermenting1)-related protein kinase1 (SnRK1) is the plant ortholog of the budding yeast SNF1 and mammalian AMP-activated protein kinase (AMPK). These conserved proteins function as metabolic sensors activated in response to decreasing energy levels. Here, we analyzed the role of SnRK1 in the interaction of Arabidopsis thaliana with the plant growth-promoting rhizobacterium (PGPR) Serratia sp. H6, under low-energy conditions, using molecular and pharmacological approaches. In the absence of sucrose in the plant growth medium, Serratia sp. H6 phytostimulated and promoted the growth of the A. thaliana mutant kin10, which has impaired SnRK1 catalytic activity, as assessed by changes in lateral root number, root length, and fresh weight. Under the same growth conditions, the mammalian AMPK inhibitor dorsomorphin (DM) at 5 μM notably decreased plant growth and cell division in the root meristem, inhibiting the phytostimulation by the rhizobacterium. In contrast, the addition of resveratrol (RSV) at 25 or 50 μM, an activator of mammalian AMPK, in the presence of Serratia sp. H6 and without sucrose, improved cell division in the root meristem, the formation of lateral roots, and the phytostimulatory effects on A. thaliana. RSV was unable to restore phytostimulation in kin10 and snrk1.3 mutant plants. These pharmacological studies suggest that SnRK1 activity is required for the growth promotion of A. thaliana by the rhizobacterium under low-energy levels. Our findings show that SnRK1 plays a key role in the growth of A. thaliana promoted by Serratia sp. H6, under metabolic stress.</div>","PeriodicalId":6973,"journal":{"name":"Acta Physiologiae Plantarum","volume":"47 6","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145142558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Comprehensive evaluation of heat response in commonly cultivated barley (Hordeum vulgare L.) landraces of Tunisia 突尼斯普通栽培大麦地方品种热响应的综合评价

IF 2.2 4区生物学

Acta Physiologiae Plantarum Pub Date : 2025-05-30 DOI: 10.1007/s11738-025-03810-8

Rania Djemal, Chantal Ebel, Ikram Zaidi, Mohamed Najib Saidi, Agostino Fricano, Moez Hanin

{"title":"Comprehensive evaluation of heat response in commonly cultivated barley (Hordeum vulgare L.) landraces of Tunisia","authors":"Rania Djemal, Chantal Ebel, Ikram Zaidi, Mohamed Najib Saidi, Agostino Fricano, Moez Hanin","doi":"10.1007/s11738-025-03810-8","DOIUrl":"10.1007/s11738-025-03810-8","url":null,"abstract":"<div>Mediterranean cereal crop production is expected to be severely affected by heat waves. Our knowledge on the physiological and molecular responses of barley (Hordeum vulgare L) to elevated temperature is particularly scarce. Here, we performed a multivariate analysis to evaluate the response to heat stress of the most common barley landraces (Arturio, Kounouz, Farandole, Arkansas, Manel, Mercure, Sextine, Imen, Rihane) grown in Tunisia. After an exposure of these genotypes during the vegetative growth stage to high temperature (32 °C) for 5 days, measurements of growth parameters along with physiological, biochemical and molecular analyses were performed. Our results showed a large variation among these genotypes in root length, plant height, number of leaves, relative water content (RWC), electrolyte leakage (EL), the contents of chlorophyll, proline, soluble sugars and antioxidants enzymes activities like CAT and SOD. Principal component analysis (PCA) and heatmap analysis showed that Kounouz and other landraces including Imen, Rihane, Manel, and Mercure are predominantly associated with heat stress tolerance parameters like CAT, SOD, RWC, and soluble sugars activities. However, Farandole, Arturio, and Arkansas are rather associated with the oxidative stress marker H2O2 and MDA. Kounouz and Farandole appear as contrasting varieties with heat stress tolerant and sensitive traits respectively, as it was confirmed by evaluating the oxidative stress status. Remarkably, expression analysis of stress-responsive genes in the two contrasting genotypes under heat stress, showed higher induction of most of these genes in Kounouz compared to Farandole. Altogether, this study strongly suggests that Kounouz is among the most heat-tolerant genotypes and should be included in future breeding programs for a better adaptation of barley to heat waves.</div>","PeriodicalId":6973,"journal":{"name":"Acta Physiologiae Plantarum","volume":"47 6","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145145661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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