Rhizosphere最新文献

{"title":"Differential rhizosphere soil nutrient use strategy of invasive and native shrub species in oak, pine, and oak-pine mixed forest ecosystems of the Himalaya","authors":"Priya Hansda,&nbsp;Shailendra Kumar,&nbsp;Satish Chandra Garkoti","doi":"10.1016/j.rhisph.2025.101021","DOIUrl":"10.1016/j.rhisph.2025.101021","url":null,"abstract":"<div><div>Vegetation types contribute differently to the soil nutrient status; however, this study aims to investigate the rhizosphere soil nutrient use strategy of invasive (<em>Ageratina adenophora</em>) and native (<em>Berberis asiatica</em> and <em>Rubus ellipticus</em>) shrub species under varied soil nutrient regimes. The rhizosphere soil samples of <em>A. adenophora</em>, <em>B. asiatica</em>, and <em>R. ellipticus</em> were collected from the upper (0–10 cm) and lower (10–20 cm) soil depths in oak, pine, and oak-pine mixed forest stands. Bulk soil was collected as control in the selected forest stands. Linear Mixed Model (LMM) and analysis of variance demonstrated that most soil properties were significantly (<em>p</em> &lt; 0.05) higher in the rhizosphere soil of <em>A. adenophora</em> than in that of <em>B. asiatica</em> and <em>R. ellipticus</em>. Specifically, soil organic carbon (SOC), total nitrogen (TN), microbial biomass carbon (MBC), nitrogen (MBN), and dehydrogenase enzyme activity (DHA) were higher in the rhizosphere of invasive <em>A. adenophora</em> than in that of native <em>B. asiatica</em> and <em>R. ellipticus</em> in oak forest. In contrast, the rhizosphere soil of native shrubs retained higher TN, Available phosphorus, and DHA than the invasive <em>A. adenophora</em> in the pine forest stand. Redundancy analysis (RDA) demonstrated that the shrub species and forest stands accounted for 22.6% and 10% variance in the rhizosphere soil properties, respectively. Among the forest stands, the rhizosphere soil traits of <em>A. adenophora</em> were higher than the rhizosphere of native species in oak forests suggesting that nutrient-rich soil ecosystems and favourable microclimatic conditions are suited for the growth and survival of invasive species. Conversely, pine forests, which are adapted to resource co-limitation and higher temperatures may suppress the proliferation of <em>A. adenophora,</em> obligating <em>A. adenophora</em> to alter its nutrient use strategies from nutrient acquisition in oak to nutrient conservation in pine forests. Thus, our findings suggest that mixed forests (oak and pine) should be conserved to enhance the species richness.</div></div>","PeriodicalId":48589,"journal":{"name":"Rhizosphere","volume":"33 ","pages":"Article 101021"},"PeriodicalIF":3.4,"publicationDate":"2025-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143386536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bacillus-derived cyclic lipopeptides modulate microbiome structure and enzymatic activity of soil and increase productivity of potato (Solanum tuberosum L.)","authors":"Alexey S. Vasilchenko ,&nbsp;Diana S. Dilbaryan ,&nbsp;Darya V. Poshvina ,&nbsp;Eugene O. Burlakov ,&nbsp;Olga V. Domanskaya ,&nbsp;Aleksandr V. Iashnikov ,&nbsp;Irina V. Palamarchuk ,&nbsp;Anastasia V. Teslya","doi":"10.1016/j.rhisph.2025.101033","DOIUrl":"10.1016/j.rhisph.2025.101033","url":null,"abstract":"<div><div>Cyclic lipopeptides (CLPs) are well-known secondary metabolites produced by <em>Bacillus</em> bacteria. Current research into the role of lipopeptides in soil microbial ecology suggests that their importance goes beyond the suppression of phytopathogens. Here we studied CLPs (bacillomycins and fengycins) as potential modulators of the structural (taxonomic) and functional (enzymatic activity) properties of the microbiome in agroecosystems with the aim of improving soil health and, consequently, plant productivity. The metabolic activity of the soil microbial communities has been found to be stimulated by the application of CLPs to soil. Microbial enzymes involved in the cycling of carbon (3 enzymes), nitrogen (2 enzymes) and phosphorus (1 enzyme) were activated in an experimental condition. Exposure to CLPs did not alter the alpha diversity of bacteria, but increased the alpha diversity of fungi. Amplicon sequencing showed that the action of CLPs alters the taxonomicstructure of bacterial and fungal communities. The constructed network of relationships between enzyme activity and changes in the microbial community allows us to identify potential taxa of bacteria and fungi that determine the activity of specific enzymes. The proposed mechanism behind changes in soil functional activity involves a change in the abundance of specific groups of bacteria and fungi, which gaine a competitive advantage after the introduction of CLPs into the soil. Finally, we tested the CLPs-based preparation on potato tubers and found that it improved the physiological parameters of the plants. Thus, the use of purified <em>Bacillus-</em>derived CLPs allowed better characterization of the biological effects exerted by soil bacilli on the soil microbiome. <em>Bacillus</em> CLPs are found to be non-toxic and to stimulate soil microbiota.</div></div>","PeriodicalId":48589,"journal":{"name":"Rhizosphere","volume":"33 ","pages":"Article 101033"},"PeriodicalIF":3.4,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143394405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nutrient and stoichiometric characteristics of various organs in three typical desert plants from extreme desert ecosystems","authors":"Yi Du ,&nbsp;Yulin Zhang ,&nbsp;Zhihao Zhang ,&nbsp;Yanju Gao ,&nbsp;Zhaobin Mu ,&nbsp;Waqar Islam ,&nbsp;Fanjiang Zeng","doi":"10.1016/j.rhisph.2025.101025","DOIUrl":"10.1016/j.rhisph.2025.101025","url":null,"abstract":"<div><div>Predicting how fragile and sensitive desert ecosystems will react to environmental changes depends on understanding how soil factors influence plant nutrient concentration and stoichiometry. We studied nutrients and stoichiometric characteristics of various organs of three desert plants (<em>Alhagi sparsifolia</em>, <em>Tamarix ramosissima</em>, and <em>Calligonum caput-medusae</em>) in Turpan (TLF), Tarim (CL), and Dzungaria (MSW) basins of Xinjiang, China. The results showed that in three regions (CL, MSW, and TLF), the nutrient levels of total nitrogen (TN) and total potassium (TK) in the leaves, roots, and branches of <em>A. sparsifolia</em> were significantly higher than those of <em>C. caput-medusae</em>. The total phosphorus (TP) contents in the leaves, roots, and branches of <em>A. sparsifolia</em> were significantly higher than those of <em>T. ramosissima</em> and <em>C. caput-medusae</em>. However, the nitrogen-to-phosphorus ratio in the leaf of <em>C. caput-medusae</em> was significantly lower compared with <em>A. sparsifolia</em> and <em>T. ramosissima</em>. <em>A. sparsifolia</em> had higher root organic carbon content compared with its branches and leaves, while its leaves had higher nutrient levels of TN and TK compared with its roots and branches. The leaf organic carbon contents of <em>T. ramosissima</em> and <em>C. caput-medusae</em> were lower compared with roots and branches, but higher leaf nutrients (TN, TP, and TK contents) than in roots and branches. The soil nutrients of three desert plants experienced significant nitrogen and phosphorus element limitations. Soil electrical conductivity (EC) was identified as a common environmental factor influencing the nutrient changes in the leaves, branches, and roots of desert plants. The structural equation model that soil pH was positively correlated with branch and root stoichiometry, however, soil EC was negatively correlated with root stoichiometry. This research offers a scientific foundation and essential information for the conservation and rehabilitation of desert ecosystems.</div></div>","PeriodicalId":48589,"journal":{"name":"Rhizosphere","volume":"33 ","pages":"Article 101025"},"PeriodicalIF":3.4,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143379141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of rhizosphere soil microenvironment interaction on ginsenoside content in Panax ginseng: A case study of three-year-old agricultural ginseng","authors":"Zhefeng Xu ,&nbsp;Yuqiu Chen ,&nbsp;Rui Liu ,&nbsp;Yibing Wang ,&nbsp;Chunshuo Liu ,&nbsp;Jing Fang ,&nbsp;Qinghe Zhang ,&nbsp;Tao Zhang ,&nbsp;Changbao Chen","doi":"10.1016/j.rhisph.2025.101023","DOIUrl":"10.1016/j.rhisph.2025.101023","url":null,"abstract":"<div><div>Planting ginseng (<em>Panax ginseng</em> C. A. Meyer) in farmland is the main method of ginseng cultivation, but the interaction between the rhizosphere soil microenvironment and the mechanism of ginsenoside accumulation in ginseng roots are still unclear. Therefore, the content of ginsenoside and rhizosphere soil microenvironment of 3-year-old agricultural ginseng at two growth periods (May and October) were studied. The results showed that the content of bulk density, pH, alkaline nitrogen and organic matter in rhizosphere soil microenvironment significantly decreased. There were significant changes in the activities of carbon cycle related enzymes (amylase, invertase, cellulase etc.), nitrogen cycle related enzymes (urease, uricase, nitrate reductase, etc.), phosphorus cycle related enzymes (acid phosphatase, phytase), and sulfur cycle related enzymes (arylsulfatase) in rhizosphere. The decrease in keystone microbial diversity in a co-occurrence network was a manifestation of soil degradation at the biological level. Ginsenosides showed significant accumulation, with a 42.4% increase in the total content of ginsenosides. Environmental factors (pH, cellulase, and cation exchange capacity) significantly affected the accumulation of ginsenosides. The results of the co-occurrence network indicated that fungal communities were more susceptible to environmental factors than bacterial communities. Meanwhile, the structure and diversity of the fungal communities had a more significant impact on the accumulation of ginsenosides compared to the bacterial community. Comprehensive analysis showed that the interaction between environmental factors (pH, cellulase, cation exchange capacity) and soil microbiome (<em>Coprinellus</em>, <em>Agaricales_unclassified</em>, <em>Mortierella</em>) may be the key factor affecting ginsenoside accumulation in 3-year-old agricultural ginseng. The research results provide reference for soil environment improvement and the development of appropriate management measures based on the fertilizer requirements of ginseng, which can help achieve sustainable production of agricultural ginseng.</div></div>","PeriodicalId":48589,"journal":{"name":"Rhizosphere","volume":"33 ","pages":"Article 101023"},"PeriodicalIF":3.4,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143386535","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of environmental factors and genotype on performance, soil physicochemical properties and endophytic fungi of Salvia miltiorrhiza","authors":"Xin Zheng ,&nbsp;Wenjing Chen ,&nbsp;Xianen Li ,&nbsp;Wenyi Shi ,&nbsp;Xiang Sun ,&nbsp;Qieyun Ge ,&nbsp;Chao He ,&nbsp;Xueli He","doi":"10.1016/j.rhisph.2025.101031","DOIUrl":"10.1016/j.rhisph.2025.101031","url":null,"abstract":"<div><div><em>Salvia miltiorrhiza</em> Bge. is a widely planted perennial medicinal herb, and screening excellent genotype resources and suitable cultivation areas is an effective way to enhance its quality and quantity. Here, the effects of environmental conditions and genotypes on plant performance, root endophytic fungi, and soil physicochemical properties were evaluated by collecting plant and rhizosphere soil samples from four regions (Beijing, Henan, Shandong, and Sichuan) and four genotypes (Z1, Z2, Z3, and Z4). The results indicated that different genotypes of <em>S. miltiorrhiza</em> from different regions showed heterogeneity in various indicators. Each genotype showed specific growth performances to geographic locations, and the peak of lipid- and water-soluble medicinal ingredient contents occurred in the summer or winter due to different genotypes. In addition, the distribution of root endophytic fungi in each genotype depended on season and site environment. Variation partitioning analysis showed that medicinal ingredients and endophytic fungal isolation rates were primarily influenced by climatic factors, whereas plant growth indicators were mainly influenced by the interaction of climatic factors, growth period, and soil factors. Correlation analysis and SEM indicated that soil pH, available nitrogen, and available phosphorus were the main factors affecting plant performance and medicinal ingredients. Based on growth indicators, Z3 was suitable for planting in Shandong, whereas Z4 was suitable for planting in Sichuan. Based on medicinal ingredients, all genotypes were suitable for cultivation in Beijing. These results not only help to comprehend the ecological adaptability of different genotypes of <em>S. miltiorrhiza</em> but also have guiding significance for regional cultivation.</div></div>","PeriodicalId":48589,"journal":{"name":"Rhizosphere","volume":"33 ","pages":"Article 101031"},"PeriodicalIF":3.4,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143379408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Plant-microbial interplay for organic nitrogen mediated by functional specificity of root compartments","authors":"Guoting Shen ,&nbsp;Andrey Guber ,&nbsp;Sajedeh Khosrozadeh ,&nbsp;Negar Ghaderi ,&nbsp;Alexandra Kravchenko ,&nbsp;Evgenia Blagodatskaya","doi":"10.1016/j.rhisph.2025.101024","DOIUrl":"10.1016/j.rhisph.2025.101024","url":null,"abstract":"<div><div>The organic form of nitrogen (N) is a critical intermediate in mutualistic and competitive root-microbial interactions, mediated by extracellular enzymes. Visualization of the hotspots of organic N and proteolytic activity might be valuable for revealing root functional specificity in N acquisition and transformation at the level of individual roots and compartments. For the first time, we used time-lapse amino-mapping and zymography to co-localize and map the spatial distribution of amino-N and leucine aminopeptidase (LAP) activity in the soil and different root parts of maize (<em>Zea mays</em> L.). Amino-N distribution was mainly associated with seminal roots and root tips, where it overlapped with LAP activity hotspots. In the lateral roots and bulk soil, however, LAP activity was decoupled from amino-N. Distinct functional traits revealed themselves as the highest amino-N content and LAP activity in seminal root tips and as the largest relative extent of the rhizosphere in lateral root tips. Co-localized amino-N and LAP activities highlighted different nutrient acquisition strategies mediated by root-microbe interactions, depending on the root compartment. Seminal roots and their tips appeared to adopt mutualistic strategies, potentially attracting root-associated microorganisms through releasing oligo- and polypeptides. In contrast, lateral roots, with amino-N detected only at their tips, demonstrated stronger N competition, relying on the enzyme activity of the rhizosphere microbial community for N acquisition. These insights emphasized the role of root functional specialization in shaping plant-microbe interactions, offering pathways to enhance nutrient use efficiency.</div></div>","PeriodicalId":48589,"journal":{"name":"Rhizosphere","volume":"33 ","pages":"Article 101024"},"PeriodicalIF":3.4,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143372695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Phosphorus bioavailability and silicon fractionation in wheat rhizosphere affected by soil water content and silicon application","authors":"Meysam Cheraghi ,&nbsp;Babak Motesharezadeh ,&nbsp;Seyed Majid Mousavi ,&nbsp;Majid Basirat ,&nbsp;Hossein Ali Alikhani","doi":"10.1016/j.rhisph.2025.101017","DOIUrl":"10.1016/j.rhisph.2025.101017","url":null,"abstract":"<div><div>Drought stress limits plant growth by reducing water and nutrient uptake. This study examined the effects of silicon (Si) and soil water content (SWC) on Si fractionation and phosphorus (P) bioavailability in the wheat rhizosphere, as well as their uptake under drought stress. The experimental setup involved dividing pot soil into rhizospheric and non-rhizospheric (bulk) zones using rhizobags. Wheat seeds were grown under different Si treatments (0, 150, 300 mg/kg monosilicic acid, and 150, 300 mg/kg Si nanoparticles) and SWC (0.4 and 0.8 Field Capacity). Results demonstrated that plant-available Si and adsorbed Si concentrations in the rhizosphere were 16.3% and 10.8% higher than in bulk soil, respectively, while amorphous Si was 17.4% higher in bulk soil. Drought stress decreased plant-available Si and adsorbed Si in the rhizosphere by 14.9% and 10.8%, respectively, while increased amorphous Si by 8.2%. Si application enhanced plant-available Si, adsorbed Si, and amorphous Si in both rhizosphere and bulk soil. Phosphorus bioavailability in the rhizosphere was 1.44 times higher than in bulk soil, and drought stress reduced plant-available P by 9.1% and 6% in the rhizosphere and bulk, respectively. Si treatments increased P bioavailability in the rhizosphere by 10.3–21.2%. Reduced rhizosphere pH (up to 0.5–1 unit) and increased organic carbon (up to 19–48%) mediated by Si contributed to higher P availability. Drought stress decreased leaf P content by 15–48%, while Si treatments increased it by 55.4–148.5%. Si-mediated improvements in P uptake were linked to enhanced water uptake, as indicated by a 23.1–37.3% increase in leaf water content and an 11.4–36.4% increase in transpiration rate under drought stress. These findings highlight Si's role in improving wheat drought tolerance by modifying rhizosphere properties and facilitating water and nutrient uptake. Therefore Si application can be considered in fertilization programs in arid and semi-arid regions.</div></div>","PeriodicalId":48589,"journal":{"name":"Rhizosphere","volume":"33 ","pages":"Article 101017"},"PeriodicalIF":3.4,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143137769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The root extracellular trap: A checkpoint controlling root tip accessibility to microorganisms","authors":"Alexia Gaudry ,&nbsp;Magalie Bénard ,&nbsp;Agnès Attard ,&nbsp;Eric Nguema-Ona ,&nbsp;Azeddine Driouich ,&nbsp;Barbara Pawlak","doi":"10.1016/j.rhisph.2025.101016","DOIUrl":"10.1016/j.rhisph.2025.101016","url":null,"abstract":"<div><div>The root tip and root-Associated Cap-Derived Cells (AC-DCs) release various organic compounds into the rhizosphere, forming the Root Extracellular Trap (RET), a network involved in root-soil microorganism interactions and root protection. This study investigates the role of soybean (<em>Glycine max</em>) and pea (<em>Pisum sativum</em>) RETs in interactions with soil rhizobacteria (<em>Bacillus subtilis</em> and <em>Pseudomonas fluorescens</em>) and the zoospores of the oomycete <em>Phytophthora parasitica</em> by examining their impact on microbial behavior. To this end, confrontation tests were performed, followed by imaging analyses of videos, in which the behavior of microorganisms (<em>i.e.,</em> swimming speeds and trajectories) was characterized and quantified. The results show that the RET alters microbial access to the root tip and modifies significantly speeds and trajectories. Inside the RET, the speeds of <em>B. subtilis</em> and <em>P. parasitica</em> zoospores decreased three and nine times respectively. Outside the RET, the speed of the bacterium remains unchanged, while that of the zoospores decreases twice. These findings highlight the influence of the RET on microbial movement and its importance in plant-microorganism interactions in the rhizosphere.</div></div>","PeriodicalId":48589,"journal":{"name":"Rhizosphere","volume":"33 ","pages":"Article 101016"},"PeriodicalIF":3.4,"publicationDate":"2025-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143137770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diverging role of phytohormones and soil nutrients between two broad and narrow-distribution orchids of Satyrium species","authors":"Brihaspati Poudel,&nbsp;Taiqiang Li,&nbsp;Rengasamy Anbazhakan,&nbsp;Jiangyun Gao","doi":"10.1016/j.rhisph.2024.101013","DOIUrl":"10.1016/j.rhisph.2024.101013","url":null,"abstract":"<div><div>The community assembly of root-associated endophytic fungi not depend on the distribution pattern of host orchids at the local level. In each case, the host plant uses soil nutrients and host compounds to attract endophytic fungi; yet, it is still necessary to investigate how these factors affect the distribution of sample orchids and their associates. Therefore, we assessed the diverging role of phytohormones and soil nutrients in their host distribution. The root-associated fungi were investigated using the amplicon sequencing method and evaluated the host chemical profiles/soil nutrients associated with the roots of sample species using Gas Chromatography-Mass Spectrometry and High Performance-Liquid Chromatography. Finally, we used the correlation analysis method to examine their relationship with endophytic fungi. Using soil samples that were taken, we assessed nine soil nutrients along with soil pH. Likewise, 22 phytohormones were found in the roots of sample orchids. Where, both sample orchids (<em>Satyrium nepalense</em> D. Don. and <em>Satyrium yunnanense</em> Rolfe.) were dominated by distinct endophytic fungal families (Unclassified_k_fungi and Hygrophoraceae) independently, and they showed either positive or negative correlation with phytohormones and soil nutrients based on the distribution pattern of host orchids. The narrowly-distributed orchid was rich by soil nutrients and endophytic fungi but the broadly-distributed orchid was rich by phytohormones and poor in fungi composition in local level So, the diversity and community composition of endophytic fungi was not related to phytohormones but positively related with soil nutrients in local level. Our limited data cannot provide strong evidence but this finding may open the door for further study over the distribution of orchids and their symbionts. Finally, our results help in ecological resilience and potential biotechnological application or conservation of orchids and their symbionts.</div></div>","PeriodicalId":48589,"journal":{"name":"Rhizosphere","volume":"33 ","pages":"Article 101013"},"PeriodicalIF":3.4,"publicationDate":"2024-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143137771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Host selection shapes structure and network of microbial community of Epimedium plants along the soil–rhizosphere–plant continuum","authors":"Zhaoyu Zhang ,&nbsp;Ziying Huang ,&nbsp;Xiao Chen ,&nbsp;Guozhuang Zhang ,&nbsp;Mengzhi Li ,&nbsp;Anning Li ,&nbsp;Xiaolin Lin ,&nbsp;Yuxin Zhou ,&nbsp;Yu Zhang ,&nbsp;Shilin Chen ,&nbsp;Linlin Dong ,&nbsp;Guangfei Wei","doi":"10.1016/j.rhisph.2024.101010","DOIUrl":"10.1016/j.rhisph.2024.101010","url":null,"abstract":"<div><h3>Background and aims</h3><div>Microbiota inhabiting plants are essential for plant productivity and health. Microbes in various plant compartment niches perform distinct ecological functions. However, the microbial characteristics in different niches of <em>Epimedium</em> plants, one of the most promising tonic herbs in traditional Chinese medicine, remain largely unknown.</div></div><div><h3>Methods</h3><div>Here, microbial composition, diversity and co-occurrence network in the five ecological niches (bulk soil, rhizosphere soil, root, stem, and leaf) of three <em>Epimedium</em> plant cultivars were investigated using high-throughput sequencing.</div></div><div><h3>Results</h3><div>The microbial composition were predominately imprinted by compartment niches than by host cultivars. Bacterial diversity and network complexity incrementally decreased from the soils to the root to the leaf; however, fungal diversity and network complexity gradually decreased from the soils to the root to the stem but increased from the stem to the leaf. Cyanobacteria, Proteobacteria, <em>Arthrobacter</em>, <em>Sphingomonas</em>, and <em>Gemmatimonas</em> were bacterial keystone taxa, while Ascomycota, <em>Davidiella</em>, and <em>Hymenoscyphu</em>s were fungal keystone taxa. These taxa exhibited significant compartment-specific properties and performed distinct ecological functions.</div></div><div><h3>Conclusion</h3><div>The microbial communities are mostly originated from bulk soil, and subsequently filtered and enriched in various compartment niches through host selection. Compartment niches profoundly imprinted the plant-associated microbiota, which provided valuable insights into harnessing beneficial communities for <em>Epimedium</em> plants in sustainable agriculture and the improvement of herbal quality.</div></div>","PeriodicalId":48589,"journal":{"name":"Rhizosphere","volume":"33 ","pages":"Article 101010"},"PeriodicalIF":3.4,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143137737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}