Frontiers in Plant Science最新文献

{"title":"Functions and mechanisms of RNA tailing by nucleotidyl transferase proteins in plants.","authors":"Jiwei Chen, Xiaozhen Li, Xianxin Dong, Xiaoyan Wang","doi":"10.3389/fpls.2024.1452347","DOIUrl":"https://doi.org/10.3389/fpls.2024.1452347","url":null,"abstract":"<p><p>The addition of non-templated nucleotides at the 3' terminus of RNA is a pervasive and evolutionarily conserved posttranscriptional modification in eukaryotes. Apart from canonical poly(A) polymerases (PAPs), which are responsible for catalyzing polyadenylation of messenger RNAs in the nucleus, a distinct group of non-canonical PAPs (ncPAPs), also known as nucleotidyl transferase proteins (NTPs), mediate the addition of uridine and adenosine or of more intricate combinations of nucleotides. Among these, HEN1 SUPPRESSOR 1 (HESO1) and UTP: RNA URIDYLYLTRANSFERASE (URT1) are the two most extensively studied NTPs responsible for the addition of uridine to the 3' ends of RNAs (RNA uridylation). Recent discoveries have improved our understanding of the functions and mechanisms of uridylation mediated by HESO1 and URT1 in RNA metabolism. Furthermore, more NTPs have been identified to function in the 3' tailing of RNA and not solely through uridylation. Accumulating evidence indicates that RNA tailing plays important roles in plant growth and development, stress responses, and disease resistance. In this review, we examined the latest developments in RNA tailing by NTPs, with a focus on RNA uridylation and metabolism in plants. We also discussed the essential aspects for future research in this field.</p>","PeriodicalId":12632,"journal":{"name":"Frontiers in Plant Science","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11518768/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142545013","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}

{"title":"Genome-wide association mapping identifies novel SNPs for root nodulation and agronomic traits in chickpea.","authors":"B S Chandana, Rohit Kumar Mahto, Rajesh Kumar Singh, Aditi Bhandari, Gitanjali Tandon, K K Singh, Sunita Kushwah, Gera Roopa Lavanya, Mir Asif Iquebal, Neelu Jain, Himabindu Kudapa, H D Upadhyaya, Aladdin Hamwieh, Rajendra Kumar","doi":"10.3389/fpls.2024.1395938","DOIUrl":"https://doi.org/10.3389/fpls.2024.1395938","url":null,"abstract":"<p><strong>Introduction: </strong>The chickpea (Cicer arietinum L.) is well-known for having climate resilience and atmospheric nitrogen fixation ability. Global demand for nitrogenous fertilizer is predicted to increase by 1.4% annually, and the loss of billions of dollars in farm profit has drawn attention to the need for alternative sources of nitrogen. The ability of chickpea to obtain sufficient nitrogen via its symbiotic relationship with <i>Mesorhizobium ciceri</i> is of critical importance in determining the growth and production of chickpea.</p><p><strong>Methods: </strong>To support findings on nodule formation in chickpea and to map the genomic regions for nodulation, an association panel consisting of 271 genotypes, selected from the global chickpea germplasm including four checks at four locations, was evaluated, and data were recorded for nodulation and 12 yield-related traits. A genome-wide association study (GWAS) was conducted using phenotypic data and genotypic data was extracted from whole-genome resequencing data of chickpea by creating a hap map file consisting of 602,344 single-nucleotide polymorphisms (SNPs) in the working set with best-fit models of association mapping.</p><p><strong>Results and discussion: </strong>The GWAS panel was found to be structured with sufficient diversity among the genotypes. Linkage disequilibrium (LD) analysis showed an LD decay value of 37.3 MB, indicating that SNPs within this distance behave as inheritance blocks. A total of 450 and 632 stringent marker-trait associations (MTAs) were identified from the BLINK and FarmCPU models, respectively, for all the traits under study. The 75 novel MTAs identified for nodulation traits were found to be stable. SNP annotations of associated markers were found to be related to various genes including a few auxins encoding as well as nod factor transporter genes. The identified significant MTAs, candidate genes, and associated markers have the potential for use in marker-assisted selection for developing high-nodulation cultivars after validation in the breeding populations.</p>","PeriodicalId":12632,"journal":{"name":"Frontiers in Plant Science","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11518797/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142545014","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}

{"title":"Inoculation of <i>Bacillus velezensis</i> Bv-116 and its bio-organic fertilizer serve as an environmental friendly biocontrol strategy against cucumber <i>Fusarium</i> wilt.","authors":"Haolong Li, Shanshan Zhao, Xueying Zhang, Fengyuan Yang, Changsong Feng, Yuhang Huang, Xiaoxue Tang, Pintian Sun, Yanping Wang","doi":"10.3389/fpls.2024.1467265","DOIUrl":"https://doi.org/10.3389/fpls.2024.1467265","url":null,"abstract":"<p><p>The aim of this study was to evaluate the effects of <i>Bacillus velezensis</i> Bv-116 and its bio-organic fertilizer on the control of cucumber <i>Fusarium</i> wilt caused by <i>Fusarium oxysporum</i> f. sp. <i>Cucumerinum</i> (FOC), the promotion of growth of cucumber seedlings, and the soil microbial community. <i>B. velezensis</i> Bv-116 exhibited an inhibition rate of 84.93% against FOC, as well as broad-spectrum inhibitory activities against other soil-borne plant pathogenic fungi. Fermentation products of <i>B. velezensis</i> Bv-116 destroyed the cell structure of FOC and inhibited the growth of FOC mycelium. These products were identified as volatile antimicrobial gases, proteases and cellulases. In the greenhouse pot experiment, both <i>B. velezensis</i> Bv-116 and its bio-organic fertilizer exhibited significant promoting effects on cucumber growth, and a significant reduction in the incidence and disease severity index of cucumber wilt (<i>p</i> < 0.05). Analysis of the microbial community structure of cucumber rhizosphere soil revealed that inoculation of <i>B. velezensis</i> Bv-116 and its bio-organic fertilizer increased the abundance of genera with biocontrol capabilities against plant pathogens. In addition, inoculation of the bio-organic fertilizer reversed the excessive proliferation of <i>Fusarium</i> and Acidobacteria. Our results suggest the potential of inoculating <i>B. velezensis</i> Bv-116 and its bio-organic fertilizer as an environmentally friendly biocontrol strategy against cucumber wilt.</p>","PeriodicalId":12632,"journal":{"name":"Frontiers in Plant Science","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11518806/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142545018","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}

{"title":"Effects of nutritional stress on soil fertility and antioxidant enzymes of rice in different growth periods.","authors":"Qiuliang Cai, Yi Zou, Ning Zhong, Guikang Jia","doi":"10.3389/fpls.2024.1471682","DOIUrl":"10.3389/fpls.2024.1471682","url":null,"abstract":"<p><p>Stress in plants denotes the detrimental impact of alterations in external environmental conditions on regular plant growth and development. Plants employ diverse mechanisms to mitigate or evade nutritional stress-induced damage. In order to investigate the physiological response mechanism of plants to nutritional stress and assess its impact on soil nutrient content and antioxidant enzyme activity in rice, a field experiment was conducted applying five treatments: control, nitrogen (N) deficiency, phosphorus (P) deficiency, potassium (K) deficiency, and full fertilization. Rice leaf and soil samples were concurrently gathered during both the vegetative and reproductive growth stages of rice. Analysis was conducted on soil N, P, and K levels, as well as leaf antioxidant enzyme activities, to investigate the impact of nutrient stress on rice antioxidant enzymes and soil fertility. The research findings indicate that full fertilization treatment enhanced the agronomic properties of the soil compared to the control treatment. In the N-deficiency treatment, reactive oxygen species (ROS) levels increased by 16.53-33.89% during the reproductive growth period compared to the vegetative growth period. The peroxidase (POD) activity decreased by 41.39% and superoxide dismutase (SOD) activity increased by 36.22% under K-deficiency treatment during the reproductive growth period compared to the vegetative growth period. Consequently, applying N and P fertilizer during the vegetative growth period can decrease membrane lipid peroxidation levels by 7.34-72.53%. The full fertilization treatment markedly enhanced rice yield compared to other treatments and increased the Nitrogen activation coefficient (NAC) and Phosphorus activation coefficient (PAC) in the soil, while decreasing the PAC. Elevating NAC levels can stimulate the activity or content of PRO, MDA, and RPS during the vegetative growth stage, whereas in the reproductive growth stage, it will decrease the content of ROS, PRO, and MDA. This data offers valuable insights and theoretical support for nutritional stress research.</p>","PeriodicalId":12632,"journal":{"name":"Frontiers in Plant Science","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11523062/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142545012","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}

{"title":"Genome-wide identification of the NAC family in <i>Hemerocallis citrina</i> and functional analysis of <i>HcNAC35</i> in response to abiotic stress in watermelon.","authors":"Lihong Cao, Jinyao Wang, Sijia Ren, Yumei Jia, Yue Liu, Shanjie Yang, Junshen Yu, Xinjuan Guo, Xiaojie Hou, Jin Xu, Sen Li, Guoming Xing","doi":"10.3389/fpls.2024.1474589","DOIUrl":"10.3389/fpls.2024.1474589","url":null,"abstract":"<p><strong>Introduction: </strong>NAC (NAM, ATAF, and CUC) transcription factor family, one of the important switches of transcription networks in plants, functions in plant growth, development, and stress resistance. Night lily (<i>Hemerocallis citrina</i>) is an important horticultural perennial monocot plant that has edible, medicinal, and ornamental values. However, the <i>NAC</i> gene family of night lily has not yet been analyzed systematically to date.</p><p><strong>Methods: </strong>Therefore, we conducted a genome-wide study of the HcNAC gene family and identified a total of 113 HcNAC members from the Hemerocallis citrina genome.</p><p><strong>Results: </strong>We found that 113 HcNAC genes were unevenly distributed on 11 chromosomes. Phylogenetic analysis showed that they could be categorized into 16 instinct subgroups. Proteins clustering together exhibited similar conserved motifs and intron-exon structures. Collinearity analysis indicated that segmental and tandem duplication might contribute to the great expansion of the <i>NAC</i> gene family in night lily, whose relationship was closer with rice than <i>Arabidopsis</i>. Additionally, tissue-specific pattern analysis indicated that most <i>HcNAC</i> genes had relatively higher expression abundances in roots. RNA-Seq along with RT-qPCR results jointly showed <i>HcNAC</i> genes expressed differently under drought and salinity stresses. Interestingly, <i>HcNAC35</i> was overexpressed in watermelon, and the stress resilience of transgenic lines was much higher than that of wild-type watermelon, which revealed its wide participation in abiotic stress response.</p><p><strong>Conclusion: </strong>In conclusion, our findings provide a new prospect for investigating the biological roles of <i>NAC</i> genes in night lily.</p>","PeriodicalId":12632,"journal":{"name":"Frontiers in Plant Science","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11513300/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142521689","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}

{"title":"Mechanics of reproductive differentiation in the land plants: a paradigm shift?","authors":"Philip M Lintilhac","doi":"10.3389/fpls.2024.1445582","DOIUrl":"10.3389/fpls.2024.1445582","url":null,"abstract":"<p><p>This article addresses the physical mechanics of gametogenesis in vascular plants. The earliest events that initiate reproductive differentiation in the land plants are not well understood. How are the few cells that initiate reproductive differentiation specified and how is that information translated into action at the cellular level? In this article I propose a physical mechanism that resolves the problem of spatial targeting without invoking dependence on diffusible morphogens or other external signals. I suggest that the initiation of archesporial differentiation can instead be attributed to the confluence of organ geometry, surficial topography, and the physical mechanics of sporangial growth, resulting in the spontaneous emergence of an isotropic singularity that locates and precipitates archesporial differentiation. In discussing the logic of single-cell target selection and the limits of stochastic molecular signaling I propose that the sporangium would be better understood as a pressurized stress-mechanical lens that focuses turgor-generated growth forces on a central location, generating a physical singularity that locates and specifies the cell or cells that become the archesporium and initiates their transition from somatic proliferation to reproductive differentiation.</p>","PeriodicalId":12632,"journal":{"name":"Frontiers in Plant Science","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11513301/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142521690","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}

{"title":"The first assessment of grain yield and associated traits in durum wheat across a decade in Nepal.","authors":"Dhruba Bahadur Thapa, Mahesh Subedi, Manoj Sapkota, Suman Bohara, Keshab Raj Pokhrel, Laxman Aryal, Basistha Acharya, Santosh Tripathi, Chhotelal Chaudhary, Bramanti Mahato, Krishna Timsina, Velu Govindan, Arun Kumar Joshi","doi":"10.3389/fpls.2024.1456062","DOIUrl":"10.3389/fpls.2024.1456062","url":null,"abstract":"<p><p>Rapid urbanization and evolving dietary preferences have heightened the demand for durum wheat and its derivatives in developing nations like Nepal. This study represents the first comprehensive exploration and evaluation of durum wheat genotypes in Nepal, addressing the escalating need for high-yielding varieties. The primary objective was to identify stable and prolific durum wheat lines for release, enhancing Nepal's durum wheat breeding program. Utilizing genotypes from CIMMYT's disease screening and yield nurseries from 2011/12 to 2020/21, a total of 132 genotypes, including international checks, underwent evaluation over ten years under the Alpha Lattice design. Results revealed significant variation among genotypes for grain yield and other traits, identifying high-yielding and stable lines suitable for Nepal. Heritability analysis highlighted moderate heritability for grain number per spike, thousand-grain weight, and grain yield. Cluster analysis identified distinct clusters with high grain yield and desirable agronomic traits. Disease incidence facilitated the selection of resistant lines, with DWK38 emerging as the highest grain yielder (4416.04 kg/ha). Overall, durum wheat lines from CIMMYT exhibited robust performance in Nepal, enabling the identification of superior lines with potential benefits for farmers and consumers. The study's implications include developing and releasing superior durum lines in Nepal, providing farmers with profitable alternatives amidst evolving food habits. In conclusion, the findings from this study provide a valuable foundation for future durum wheat breeding efforts in Nepal, guiding the selection of genotypes that are well-suited to the diverse environmental challenges of the region.</p>","PeriodicalId":12632,"journal":{"name":"Frontiers in Plant Science","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11513377/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142521702","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}

{"title":"Editorial: Manipulation of plant architecture for crop production.","authors":"Zoe Hilioti, Dulce Antunes, Panagiotis Kalaitzis, Georgios Merkouropoulos","doi":"10.3389/fpls.2024.1502833","DOIUrl":"https://doi.org/10.3389/fpls.2024.1502833","url":null,"abstract":"","PeriodicalId":12632,"journal":{"name":"Frontiers in Plant Science","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11513350/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142521686","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}

{"title":"Sediment accretion and nutrient enrichment enhance the growth and vegetative propagation of <i>Phalaris arundinacea</i> growing within a <i>Carex thunbergii</i> stand.","authors":"Xin-Zhi Guo, Jia-Shun Zhong, Wen-Jing Sun, Xiang-Rong Song, Jing Liu, Xin-Sheng Chen","doi":"10.3389/fpls.2024.1459663","DOIUrl":"10.3389/fpls.2024.1459663","url":null,"abstract":"<p><p>Sediment accretion (burial) and nutrient enrichment may exert a synergistic influence on the growth and distribution of macrophytes in floodplain wetlands; however, this phenomenon has rarely been examined. In this study, we investigated the effects of sediment accretion and nutrient enrichment on the growth and vegetative propagation of <i>Phalaris arundinacea</i> within a <i>Carex thunbergii</i> stand (one <i>P. arundinacea</i> ramet within 25 C<i>. thunbergii</i> ramets) using a factorial sediment burial (0, 3, and 6 cm) and nutrient addition (low, medium, and high) experimental design. High sediment burial (6 cm) without nutrient addition decreased the aboveground and total biomass of <i>C. thunbergii</i> but did not affect <i>P. arundinacea</i>, indicating that <i>P. arundinacea</i> is more tolerant to sediment burial than <i>C. thunbergii</i>. Moderate sediment burial (3 cm) with nutrient addition enhanced the aboveground and total biomass of <i>P. arundinacea</i> but did not affect <i>C. thunbergii</i>, indicating that <i>P. arundinacea</i> may gain a growth advantage over <i>C. thunbergii</i> under moderate sedimentation. High sediment burial with nutrient addition increased the number of rhizomes and ramets produced by <i>P. arundinacea</i> but did not affect <i>C. thunbergii</i>, indicating that the relative abundance of <i>P. arundinacea</i> may increase within the <i>Carex</i> community under high sedimentation conditions. Based on these results, it can be concluded that an increased sedimentation rate facilitates the invasion of <i>P. arundinacea</i> into <i>Carex</i> grasslands, and this invasion is further enhanced by nutrient enrichment. Therefore, management measures should be taken to reduce the sediment load and nutrient input to prevent <i>Carex</i> grasslands invasion by <i>P. arundinacea</i> and maintain the ecological function of floodplain wetlands.</p>","PeriodicalId":12632,"journal":{"name":"Frontiers in Plant Science","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11513317/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142521692","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}

{"title":"Distribution pattern of soil nematode communities along an elevational gradient in arid and semi-arid mountains of Northwest China.","authors":"Jingliang Chen, Yafeng Zhang, Chao Liu, Lei Huang","doi":"10.3389/fpls.2024.1466079","DOIUrl":"10.3389/fpls.2024.1466079","url":null,"abstract":"<p><p>Soil nematodes are the most abundant soil metazoans, occupying multiple trophic levels in the soil food web and playing an important role in soil function. Research on the biogeographic distribution patterns of soil nematode communities and their drivers has received greater attention. However, the distribution characteristics of soil nematode communities along the elevational gradient in the arid and semi-arid regions of Northwest China remain unclear. In this study, four elevational gradients (1750-1900, 1900-2100, 2100-2350 and 2350-2560 m) were established on Luoshan Mountain, Ningxia, an arid and semi-arid region in Northwest China, and soil nematodes in the soil layers of 0-10, 10-20 and 20-40 cm were investigated using the improved Baermann funnel method. The results revealed a monotonically decreasing trend in the total number of soil nematodes along the elevational gradient and soil layer depth, decreasing by 63.32% to 79.94% and 73.59% to 86.90%, respectively, while the interactions were not obvious. A total of 1487 soil nematodes belonging to 27 families and 32 genera were identified across the elevational gradient, with <i>Helicotylenchus</i> as the dominant genus, accounting for 10.43% of the total number of nematodes, and bacterivore nematodes as the main trophic groups, accounting for 32.39% to 52.55% of the relative abundance at each elevation, which increased with increasing elevation. Soil nematode community diversity, richness and maturity indices were relatively low at high elevation and decreased by 44.62%, 48% and 54.74%, respectively, with increasing soil layer depth at high elevations. Compared to low elevations, high-elevation soils experienced greater disturbance, reduced structural complexity and nutrient enrichment of the soil food web, and a shift in soil organic matter decomposition from bacterial to fungal pathways as elevation increased. Finally, redundancy analysis showed that soil pH, bulk density, soil moisture, soil organic carbon, available nitrogen, available phosphorus and available potassium were the main soil factors affecting the composition of soil nematode communities, which well explained the differences in nematode communities at different elevations and soil depths. This study can be used as basic information for further research on soil biota in this mountainous region, expanding our further understanding of the spatial ecology of soil nematodes in the arid and semi-arid mountain ecosystems.</p>","PeriodicalId":12632,"journal":{"name":"Frontiers in Plant Science","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11523865/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142545011","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}