Physiologia plantarum最新文献_第6页

Structural and Functional Perspectives on Mitochondrial LYR-Domain Proteins in Plants. 植物线粒体lyr结构域蛋白的结构和功能研究

IF 5.4 2区生物学

Physiologia plantarum Pub Date : 2025-07-01 DOI: 10.1111/ppl.70393

Saurabh Saha, Benjamin Hearn-Thomas, Valencia Marisa, Kira Depiazzi, Mara Schaefer, Monika W Murcha

引用次数: 0

Alleviating Soybean Salt Stress via Suaeda salsa Intercropping: Roles of Desalinization and Root Interactions. 盐田间作缓解大豆盐胁迫：脱盐和根系互作的作用。

IF 5.4 2区生物学

Physiologia plantarum Pub Date : 2025-07-01 DOI: 10.1111/ppl.70358

Shiqi Wang, Jinbiao Liu, Jiliang Zheng, Yalan Liu, Changyan Tian

{"title":"Alleviating Soybean Salt Stress via Suaeda salsa Intercropping: Roles of Desalinization and Root Interactions.","authors":"Shiqi Wang, Jinbiao Liu, Jiliang Zheng, Yalan Liu, Changyan Tian","doi":"10.1111/ppl.70358","DOIUrl":"https://doi.org/10.1111/ppl.70358","url":null,"abstract":"Halophyte-based intercropping alleviates salt stress in glycophytes by desalinization. However, the role of root interactions, which are key to system sustainability, is often overlooked. This study evaluated soybean (Glycine max) salt tolerance when intercropped with Suaeda salsa, a halophyte with high salt tolerance, under different root interaction modes: plastic sheet separation (PL), nylon mesh separation (NL), and no separation (NS). Soil electrical conductivity did not differ significantly between NL and PL, indicating that soybean salt tolerance differences arose from root interactions, while the differences between NS and PL resulted from both root interactions and desalinization. Results showed that desalinization significantly reduced Na+ and Cl- content in both soil and soybean shoots in saline soils. However, it exacerbated reactive oxygen species (ROS) levels and introduced competition for soluble nutrients, partially counteracting its positive effects on biomass. Root interactions significantly increased soybean biomass by 80% without a significant effect on Na+ and Cl- content, but effectively scavenged salt stress-induced ROS through the upregulation of antioxidant enzymes (glutathione peroxidase and glutathione reductase) and non-enzymatic antioxidants (glutathione, melatonin, flavonoids), and alleviated desalinization-induced oxidative damage by further enhancing guaiacol peroxidase and ascorbate peroxidase activities. These results highlight the positive role of root interactions in alleviating soybean salt stress through enhanced antioxidant capacity. Additionally, root interactions demonstrate the capacity to enhance nutrient uptake in soybean such as Ca and Mg. Our findings suggest that, with water and fertilizer management, Suaeda salsa-soybean intercropping can be sustainably cultivated in saline soils.","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 4","pages":"e70358"},"PeriodicalIF":5.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144529296","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

Advanced High-Throughput Root Phenotyping and GWAS Identifies Key Genomic Regions in Cowpea During Vegetative Growth Stage. 先进的高通量根表型和GWAS鉴定豇豆营养生长期关键基因组区域。

IF 5.4 2区生物学

Physiologia plantarum Pub Date : 2025-07-01 DOI: 10.1111/ppl.70375

Liny Lay, Sheikh Mansoor, Waleed Khan, Mohammad Shafiqul Islam, Amit Ghimire, Hyun Jo, Yong Suk Chung, Yoonha Kim

{"title":"Advanced High-Throughput Root Phenotyping and GWAS Identifies Key Genomic Regions in Cowpea During Vegetative Growth Stage.","authors":"Liny Lay, Sheikh Mansoor, Waleed Khan, Mohammad Shafiqul Islam, Amit Ghimire, Hyun Jo, Yong Suk Chung, Yoonha Kim","doi":"10.1111/ppl.70375","DOIUrl":"10.1111/ppl.70375","url":null,"abstract":"Improving crop production in changing environments can be achieved through selective breeding; however, limited advanced root phenotyping and genotyping in early growth stages hinder assessing root architecture variation and diversity, despite its importance. Therefore, this study utilized advanced image phenotyping on a diverse set of 222 cowpea accessions, revealing significant variations in key phenotypic traits and the genomic regions influencing them. Our study revealed a total of 55 genes linked to major root traits. Among eight root traits-total root length (TRL), surface area (SA), average diameter (AD), root volume (RV), tip number (TN), fork number (FN), primary root length (PRL), and lateral root length (LRL), analyzed, seven significant single nucleotide polymorphisms (SNPs) demonstrated particularly strong associations with three key traits, including surface area (SA), tip number (TN), and fork number (FN). SA emerged as a significant trait, exhibiting considerable variation across the studied accessions. The mean SA was 59.59 cm2, with some genotypes surpassing 140.72 cm2. Further analysis identified two SNPs that showed significant association with SA, located on two distinct chromosomes: 3 and 11. Similarly, two significant SNPs associated with TN were found on chromosome 3, while three SNPs associated with FN were identified on chromosomes 2, 3, and 8. These findings significantly advance our understanding of the genetic foundations underlying important phenotypic traits in cowpeas, offering a robust framework for future genetic improvement initiatives. The results strongly suggest that implementing breeding programs focused on selecting root phenotypes could significantly enhance cowpea productivity across various environments.","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 4","pages":"e70375"},"PeriodicalIF":5.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12232088/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144560798","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

Diesel Tolerance in the Antarctic Grass Deschampsia antarctica: From Laboratory to Field in Extreme Conditions. 南极草的耐柴油性：从实验室到极端条件下的野外。

IF 5.4 2区生物学

Physiologia plantarum Pub Date : 2025-07-01 DOI: 10.1111/ppl.70362

Catalina Basile Dazzi, Francisco Massot, María Piotto, Laura Recalde, María Valeria Ricco, Walter Mac Cormack, Lucas Ruberto

{"title":"Diesel Tolerance in the Antarctic Grass Deschampsia antarctica: From Laboratory to Field in Extreme Conditions.","authors":"Catalina Basile Dazzi, Francisco Massot, María Piotto, Laura Recalde, María Valeria Ricco, Walter Mac Cormack, Lucas Ruberto","doi":"10.1111/ppl.70362","DOIUrl":"https://doi.org/10.1111/ppl.70362","url":null,"abstract":"Diesel spills represent a significant challenge to Antarctic ecosystems, particularly in ice-free areas where stations and wildlife co-occur. Taking into consideration the Protocol on Environmental Protection to the Antarctic Treaty, the use of native species emerges as a suitable solution for this problem. Here, we evaluate the tolerance and potential of the native grass Deschampsia antarctica for phytoremediation of diesel-contaminated soils, combining in vitro and field assays at Carlini Research Station. Using a dose-response approach, we measured biometric parameters, photosynthetic pigments, and antioxidant enzyme activities under varying diesel concentrations. In vitro experiments suggested high half-maximal inhibitory dose (ID50) values: 3741, 5709 and 8425 mg kg-1 for root growth, chlorophyll content, and total biomass, respectively. Field experiments showed a 14.5%, 47.9%, and 27.5% reduction in biomass, root growth and chlorophyll content at the highest diesel concentration (40,000 mg kg-1), suggesting that root growth is the most sensitive parameter. Antioxidant enzyme activities, including guaiacol peroxidase (GPX, EC 1.11.1.7) and superoxide dismutase (SOD, EC 1.15.1.1), presented contrasting trends between in vitro and field conditions, underscoring the influence of environmental factors on stress responses. These results propose root growth as an indicator of diesel-induced stress, contributing to optimizing phytoremediation strategies. Overall, our findings highlight the plant's tolerance to high contaminant levels, even under conditions of maximum bioavailability, and demonstrate its potential for phytoremediation in extreme environments, supporting the development of sustainable remediation strategies for Antarctic soils.","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 4","pages":"e70362"},"PeriodicalIF":5.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144541902","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

Ascaroside#18 Promotes Plant Defence by Repressing Auxin Signalling. ascarside #18通过抑制生长素信号传导促进植物防御。

IF 5.4 2区生物学

Physiologia plantarum Pub Date : 2025-07-01 DOI: 10.1111/ppl.70386

Sharon Letia, Sabarna Bhattacharyya, Badou Mendy, Ute C Vothknecht, Stephan H von Reuss, Masaki Inada, Florian M W Grundler, M Shamim Hasan

{"title":"Ascaroside#18 Promotes Plant Defence by Repressing Auxin Signalling.","authors":"Sharon Letia, Sabarna Bhattacharyya, Badou Mendy, Ute C Vothknecht, Stephan H von Reuss, Masaki Inada, Florian M W Grundler, M Shamim Hasan","doi":"10.1111/ppl.70386","DOIUrl":"10.1111/ppl.70386","url":null,"abstract":"Plant immunity against pathogens is primarily triggered by the perception of pathogen-associated molecular patterns (PAMPs). Ascaroside#18, a nematode-derived pheromone, is the first identified nematode-associated molecular pattern conferring broad-spectrum pathogen resistance. Recently, ascr#18 was shown to be recognised by the leucine-rich repeat receptor NILR1, linked to pattern-triggered immunity (PTI) against nematodes. However, the molecular mechanisms downstream of ascr#18 perception remain largely unknown. Here, we show that ascr#18 triggers an immune response that differs from the typical PTI features, with no reactive oxygen species burst or defence-related growth inhibition. Further analysis indicates that the ascr#18-associated resistance mechanism against cyst nematodes (CN) operates independently of the peroxisomal β-oxidation pathway. Transcriptome profiling of Arabidopsis roots treated with ascr#18 revealed strong effects on the regulation of auxin transport and signalling genes, while classical defence genes remained unchanged. These changes, particularly the downregulation of auxin-related genes, occur independently of NILR1. Analysis of CN feeding sites revealed that ascr#18 pretreatment reduced expression of the auxin influx carrier AUX1 and the auxin-responsive genes SAUR69 and IAA27. Promoter-reporter analysis confirmed reduced AUX1 expression in both nematode-infected and non-infected roots treated with ascr#18. Since nematode establishment and the associated feeding cell development are heavily dependent on the modulation of auxin signalling, our results suggest a novel defence mechanism based on its suppression. This mechanism reduces nematode susceptibility without activating classical PTI responses. Our results provide new insights into how plants fend off biotrophic pathogens and point to ways of developing novel strategies for controlling nematodes and other biotrophic pathogens.","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 4","pages":"e70386"},"PeriodicalIF":5.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12247022/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144608982","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

(ID-ICPMB05) Running on Empty: Mitochondria Without DNA Exhibit Differential Motility and Connectivity. 空运行：没有DNA的线粒体表现出不同的运动性和连通性。

IF 5.4 2区生物学

Physiologia plantarum Pub Date : 2025-07-01 DOI: 10.1111/ppl.70404

Joanna M Chustecki, Alora Q Schneider, Madeleine H Faber, Bara Altartouri, Alan C Christensen

{"title":"(ID-ICPMB05) Running on Empty: Mitochondria Without DNA Exhibit Differential Motility and Connectivity.","authors":"Joanna M Chustecki, Alora Q Schneider, Madeleine H Faber, Bara Altartouri, Alan C Christensen","doi":"10.1111/ppl.70404","DOIUrl":"10.1111/ppl.70404","url":null,"abstract":"Plant mitochondria are in continuous motion. While providing ATP to other cellular processes, they also constantly consume ATP to move rapidly within the cell. This movement is in part related to taking up, converting and delivering metabolites and energy to and from different parts of the cell. Plant mitochondria have varying amounts of DNA, even within a single cell, from none to the full mitochondrial genome. Because mitochondrial dynamics are altered in an Arabidopsis mutant with disrupted DNA maintenance, we hypothesised that exchanging DNA templates for repair is one of the functions of their movement and interactions. Here, we image mitochondrial DNA by two distinct methods while tracking mitochondrial position to investigate differences in the behaviour of mitochondria with and without DNA in Arabidopsis thaliana. In addition to staining mitochondrial DNA with SYBR Green, we have developed and implemented a fluorescent mitochondrial DNA binding protein that will enable future understanding of mitochondrial dynamics, genome maintenance and replication. We demonstrate that mitochondria without mtDNA have altered physical behaviour and lower immediate connectivity to the rest of the population, further supporting a link between the physical and genetic dynamics of these complex organelles.","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 4","pages":"e70404"},"PeriodicalIF":5.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12257277/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144626953","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

Integrated Physiological and Transcriptomic Analysis Reveals Transcription Factors Are Crucial for Melatonin-Mediated Drought Tolerance in E. ulmoides. 综合生理和转录组学分析揭示转录因子在杜仲褪黑激素介导的抗旱性中起关键作用。

IF 5.4 2区生物学

Physiologia plantarum Pub Date : 2025-07-01 DOI: 10.1111/ppl.70382

Minmin He, Zhanchao Yang, Linling Yang, Fengyan Fang, Xiaoyu Chen, Juanying Wang, Xueping Wu, Guoen Ao, Mingwei Yao, Shugang Hui, Xuchu Wang

{"title":"Integrated Physiological and Transcriptomic Analysis Reveals Transcription Factors Are Crucial for Melatonin-Mediated Drought Tolerance in E. ulmoides.","authors":"Minmin He, Zhanchao Yang, Linling Yang, Fengyan Fang, Xiaoyu Chen, Juanying Wang, Xueping Wu, Guoen Ao, Mingwei Yao, Shugang Hui, Xuchu Wang","doi":"10.1111/ppl.70382","DOIUrl":"https://doi.org/10.1111/ppl.70382","url":null,"abstract":"Eucommia ulmoides is a Chinese herbal medicine, and much attention has been paid to its tolerance mechanism under stress conditions. Among them, drought is a severe stress that affects the plant's growth and development. Here, we assessed the protective efficiency of different concentrations of melatonin in the leaves of Eucommia ulmoides under drought stress. Our study revealed how exogenous melatonin enhanced drought tolerance in E. ulmoides through integrated physiological and molecular mechanisms. Melatonin preserved photosynthetic capacity by upregulating genes like PsbS, stabilizing PSII, scavenging ROS, and activating antioxidant enzymes. Moreover, melatonin promoted the reconstruction of redox homeostasis by mediating MAPK and ABA signal transduction and endogenous hormone crosstalk signals to balance ROS homeostasis and stress gene expression. It also differentially regulated MYC transcription factors (e.g., EuMYC2/8), redirected jasmonic acid signaling from root growth to stress adaptation, and optimized carbon metabolism by promoting starch-to-sugar conversion and enhanced the phenylpropanoid flux, reinforcing cell walls and antioxidant defenses. Our results provide new insights into the morphological, physiological, and transcriptional responses in the leaves of E. ulmoides for drought stress and reveal the molecular mechanism of exogenous melatonin in improving the drought resistance ability in E. ulmoides.","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 4","pages":"e70382"},"PeriodicalIF":5.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144541904","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

Role of Endophyte in Salinity Stress Amelioration by Growth, Physiology, and Biochemistry Mechanisms of Defense: A Meta-Analysis. 内生菌通过生长、生理和生物化学防御机制改善盐胁迫的作用：荟萃分析。

IF 5.4 2区生物学

Physiologia plantarum Pub Date : 2025-07-01 DOI: 10.1111/ppl.70337

Yue-Yang Zhang, Li Wen, Tong-Tong Wang, Yan-Zhong Li

{"title":"Role of Endophyte in Salinity Stress Amelioration by Growth, Physiology, and Biochemistry Mechanisms of Defense: A Meta-Analysis.","authors":"Yue-Yang Zhang, Li Wen, Tong-Tong Wang, Yan-Zhong Li","doi":"10.1111/ppl.70337","DOIUrl":"10.1111/ppl.70337","url":null,"abstract":"Endophytes, a class of endosymbiotic microorganisms widely distributed among plants, are becoming a promising strategy for improving plant salt stress tolerance. However, the role of endophytes in mitigating salinity is not yet fully understood. Here, based on a database including 2143 paired observations from 98 papers, a meta-analysis was conducted on the role of endophytes in plant responses to salt stress and the different responses conferred by endophytic fungi and bacteria, C3 and C4 plants and high, middle, and low salt levels. The results showed that endophytes directly or indirectly triggered significant alterations in the physiological activity, phytohormone, osmotic regulation, and antioxidant capacity of plants to improve the salt tolerance of plants. Endophytic bacteria maintained biomass better, while endophytic fungi regulated osmotic pressure, hormone levels, and oxidative damage better, which is due to endophytic fungi slowing plant growth to adapt to salt stress. Endophytes maintained biomass and photosynthesis better in C3 plants, and water content and clearing reactive oxygen species (ROS) better in C4 plants, attributed to higher water, nitrogen, and radiation use efficiencies and the unique photosynthesis mechanism of C4 plants. Under high and middle salt stress, the endophytes reduced salt stress better than under low salt stress, which is due to endophytes significantly increasing regulated genes and changing metabolic pathways under salt stress. These results are important to improve our understanding of endophyte-plant symbiont mechanisms to salt stress and further enhance salt resistance by endophyte inoculation.","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 4","pages":"e70337"},"PeriodicalIF":5.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144507464","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

PSII Photoinhibition as a Protective Strategy: Maintaining an Oxidative State of PSI by Suppressing PSII Activity Under Environmental Stress. PSII光抑制作为一种保护策略：在环境胁迫下通过抑制PSII活性维持PSII的氧化状态。

IF 5.4 2区生物学

Physiologia plantarum Pub Date : 2025-07-01 DOI: 10.1111/ppl.70392

Ko Takeuchi, Shintaro Harimoto, Shu Maekawa, Chikahiro Miyake, Kentaro Ifuku

{"title":"PSII Photoinhibition as a Protective Strategy: Maintaining an Oxidative State of PSI by Suppressing PSII Activity Under Environmental Stress.","authors":"Ko Takeuchi, Shintaro Harimoto, Shu Maekawa, Chikahiro Miyake, Kentaro Ifuku","doi":"10.1111/ppl.70392","DOIUrl":"https://doi.org/10.1111/ppl.70392","url":null,"abstract":"Photosystem I (PSI) can be photoinhibited by excessive electron flow from Photosystem II (PSII), causing serious growth inhibition due to PSI's limited repair capacity. In contrast, PSII is more prone to photoinhibition under environmental stress, but it can recover efficiently. Consequently, PSII photoinhibition is considered a protective mechanism that mitigates PSI over-reduction. However, this photoprotective role under environmental stress remains unexplored in intact plants without using mutants or chemical treatments. To address this, we examined the relationship between PSII photoinhibition and PSI protection under two representative stresses that selectively induce PSI photoinhibition: chilling stress and fluctuating light, using A. thaliana and cucumber plants. Under chilling stress, A. thaliana exhibited marked PSII photoinhibition and maintained active PSI, whereas cucumber showed insufficient PSII downregulation and suffered from PSI photoinhibition. In addition, when fluctuating light treatment was applied to plants with various Fv/Fm (the maximum quantum yield of PSII), plants with reduced Fv/Fm maintained an oxidized PSI, and PSI photoinhibition progressed slowly. The susceptibility to PSI photoinhibition under fluctuating light strongly correlated with Fv/Fm, providing clear evidence that PSII photoinhibition protects PSI. Interestingly, even in plants where P700 remained oxidized due to PSII photoinhibition, the Fe-S clusters remained reduced during saturation pulses. However, the re-oxidation of reduced Fe-S clusters was enhanced in PSII-photoinhibited plants, suggesting that charge recombination to P700+ with reduced components on the PSI acceptor side or accelerated processes downstream of ferredoxin would suppress ROS generation downstream of PSI. This study clarifies how PSII photoinhibition suppresses PSI photoinhibition and prevents ROS-induced damage under environmental stresses.","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 4","pages":"e70392"},"PeriodicalIF":5.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144601251","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

Epichloë Endophytes Potentially Facilitate Host Plant Recruitment of Rhizosphere Microbiota Carrying Beneficial Traits. Epichloë内生菌可能促进寄主植物招募携带有益性状的根际微生物群。

IF 5.4 2区生物学

Physiologia plantarum Pub Date : 2025-07-01 DOI: 10.1111/ppl.70397

Chong Shi, Chuanzhe Wang, Jiakun He, Mengmeng Zhang, Wei Huang

{"title":"Epichloë Endophytes Potentially Facilitate Host Plant Recruitment of Rhizosphere Microbiota Carrying Beneficial Traits.","authors":"Chong Shi, Chuanzhe Wang, Jiakun He, Mengmeng Zhang, Wei Huang","doi":"10.1111/ppl.70397","DOIUrl":"https://doi.org/10.1111/ppl.70397","url":null,"abstract":"Plant-microbe symbiotic relationships drive ecosystem evolution. This study employed metabolomics and metagenomic technologies to investigate the effects of the aboveground-restricted endophytic fungus Epichloë guerinii in the host plant Melica transsilvanica on the rhizosphere microbial community structure and functional traits. Our results revealed that the presence of E. guerinii significantly increased the secretion of organic acids, amino acids, and sugar alcohols from the host root system. These exudates correlated strongly with abundant, plant growth-promoting rhizosphere microorganisms like Pseudomonas, Bradyrhizobium, and Nitrospira. Functional genes that were significantly enriched in the host rhizosphere microbiota were predominantly associated with biofilm formation and organic acid metabolic pathways. Co-enrichment analyses of rhizosphere soil metabolites and genes highlighted pathways such as flagellar assembly and carbon/nitrogen/sulfur metabolism. Notably, the abundance of key genes governing the flagellar motor MotA protein in the host rhizosphere, as well as those involved in the reductive tricarboxylic acid (rTCA) cycle, nitrification, and thiosulfate oxidation, were significantly elevated. This study demonstrates that E. guerinii positively regulates rhizosphere microbial community functions by reprogramming the composition of host root exudates. These findings deepen the mechanistic understanding of Epichloë-plant-rhizosphere microbe interactions.","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"177 4","pages":"e70397"},"PeriodicalIF":5.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144608984","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