European Journal of Soil Biology最新文献

{"title":"The hidden shift: The role of exotic plantations in modulating soil arthropod communities in an arid island","authors":"Adolfo Perdomo-González ,&nbsp;Raquel Pérez-Reverón ,&nbsp;Marta Goberna ,&nbsp;Heriberto López ,&nbsp;Paula Arribas ,&nbsp;J. Alfredo Reyes-Betancort ,&nbsp;Carmelo Andújar ,&nbsp;Francisco J. Díaz-Peña","doi":"10.1016/j.ejsobi.2025.103724","DOIUrl":"10.1016/j.ejsobi.2025.103724","url":null,"abstract":"<div><div>Reforestation with exotic species has often been used in arid and semiarid areas to restore degraded ecosystems. However, the effects of these plantations on soil biodiversity are still under debate. In the present study, we aimed to evaluate the long-term impacts (&gt;60 years) of exotic plantations with <em>Acacia cyclops</em> and <em>Pinus halepensis</em> on soil biodiversity in an insular arid ecosystem of high ecological value. To do so, we study soil quality and soil arthropod communities in patches of vegetation under uniform edaphoclimatic conditions. Soil quality assessment was carried out by developing an ad-hoc Soil Quality Index (SQI) across seven sites, including two plantations (<em>Pinus</em> or <em>Acacia</em>), two degraded areas with a low cover of native species, and three sites with a high cover of native species. Whole organism community DNA (wocDNA) metabarcoding and barcoding were used to analyse key soil arthropod groups (Coleoptera, Acari and Collembola) recognized as habitat quality and biodiversity indicators. Our findings show that exotic plantations improved soil quality compared to degraded sites, with a considerable increase in the organic carbon pool, macronutrients and microbiological activity (SQI = 0.53 ± 0.12 <em>vs.</em> 0.29 ± 0.06). This improvement did not reach the values recorded in soils with a high cover of preserved native flora (SQI = 0.65 ± 0.12), with some exceptions. Richness of mesofauna and Coleoptera was lower in degraded areas (4.4 ± 1.6 and 0.4 ± 0.7, respectively) followed by exotic plantations (9.5 ± 2.6 and 1.2 ± 0.9) and permanent native vegetation (14.1 ± 5.5 and 2.2 ± 1.8). Soil quality significantly explained up to 52 % and 17 % of the variance in the richness of mesofauna and Coleoptera, respectively. While exotic plantations appear to prevent further land degradation in terms of soil quality, multivariate analysis shows that the structure of soil arthropod communities, particularly in <em>Pinus</em> plantations and to a lesser extent in <em>Acacia</em> plantations, differs significantly from that of soils in ecosystems with remnant native flora. These results highlight the need for a careful balance between biodiversity conservation and soil health management, especially in areas susceptible to desertification.</div></div>","PeriodicalId":12057,"journal":{"name":"European Journal of Soil Biology","volume":"125 ","pages":"Article 103724"},"PeriodicalIF":3.7,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143792634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The light shifts in ammonia nitrogen affected soil microbial communities with their related dissolved organic matter in the arid region","authors":"XinYue Yan ,&nbsp;Yang Li ,&nbsp;TianQi Qin ,&nbsp;Ying Gan ,&nbsp;Na Li","doi":"10.1016/j.ejsobi.2025.103725","DOIUrl":"10.1016/j.ejsobi.2025.103725","url":null,"abstract":"<div><div>Arid and semi-arid climates are vital components of ecosystem, however, the mechanisms by which microorganisms respond to soil dissolved organic matter (DOM) in these regions under the constraint of ammonium nitrogen remain unknown. In this study, we investigated the differences in microbial diversity, composition, abundance, and DOM composition in soils with varying ammonia-nitrogen (NH₄⁺-N) concentrations in arid and semi-arid regions. We also explored the connectivity between the co-occurrence networks of microorganisms and DOM. In high NH₄⁺-N environments, the phyla of soil microorganisms that showed an increase included Anabaena and Thick-walled Bacteria. Moreover, the abundance of microorganisms such as <em>Reyranella</em>, <em>Actinophyfocala</em>, and <em>Arhrobacter</em> also increased. The main metabolic modes of these microorganisms were lysine biosynthesis and D-amino acid metabolism. Metabolites that exhibited elevated levels along with the increase in NH₄⁺-N content included those related to chlorocyclohexane and chlorobenzene degradation, as well as geraniol degradation. NH₄⁺-N was identified as the most significant environmental factor influencing the relationship between microorganisms and DOM. In high-ammonia environments, the number of links, average clustering coefficient, density, and connectivity of the microorganisms and DOM co-occurrence network were significantly higher. This indicates that the co-occurrence network was more complex and stable. In contrast, low NH₄⁺-N environments restricted microbial metabolic processes and altered the DOM composition, leading to a further limitation of microbial activity. This study elucidated the response mechanism of soil microorganisms to DOM under the limitation of NH₄⁺-N in arid and semi-arid regions and emphasized the crucial role of soil NH₄⁺-N concentration in the soil biological cycle. It offers a reference for monitoring soil quality, preventing soil degradation, and maintaining ecological environment and food security.</div></div>","PeriodicalId":12057,"journal":{"name":"European Journal of Soil Biology","volume":"125 ","pages":"Article 103725"},"PeriodicalIF":3.7,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143715461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Soil bacterial communities benefit from long-term cover crop mixtures","authors":"Biyensa Gurmessa ,&nbsp;Ranjith P. Udawatta ,&nbsp;R. Tharindu Rambadagalla ,&nbsp;Timothy Reinbott","doi":"10.1016/j.ejsobi.2025.103714","DOIUrl":"10.1016/j.ejsobi.2025.103714","url":null,"abstract":"<div><div>Understanding the long-term impacts of cover cropping on soil health indicators is vital for developing sustainable farming practices. The aim of the current study was to investigate the impacts of long-term mixed cover crops practice in a no-till system on soil bacterial community abundance and diversity using 16S rRNA sequencing. We compared three cover crop practices againist a no-cover crop control (NCC): cereal rye only (Rye), a mixture of cereal rye and hairy vetch (RyeHV), and a mixture of cereal rye, hairy vetch, crimson clover, and Australian winter pea (Mixed). These treatments were arranged in a completely randomized block design with four replications. The abundance of soil bacteria was lower in the Rye treatment compared to the Mixed and RyeHV treatments, possibly due to the uniform supply of resources (exudates) and the limited root structure, rather than due to the increased soil bulk density or reduced organic carbon. This reduction was observed in the total operational taxonomic units and the dominant taxa groups, including Actinobacteria, Proteobacteria, Firmicutes, and Acidobacteria. Non-metric Multidimensional Scaling analysis, using Bray-Curtis dissimilarity, revealed distinct bacterial community structure between the Rye and the rest of treatments, but with a potential overlap of that of NCC with all the cover crop treatments. In conclusion, our study revealed that unlike mixed species cover crops, a single species cover crops may compete for resources with soil bacterial community, leading to a reduced abundance of soil bacteria. Moreover, possible positive impact of cover cropping on soil physicochemical properties may not always have relationships with soil bacterial alpha diversity. Future research should explore attributes of mixed cover crops that may be crucial in driving microbial community structure.</div></div>","PeriodicalId":12057,"journal":{"name":"European Journal of Soil Biology","volume":"124 ","pages":"Article 103714"},"PeriodicalIF":3.7,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143549154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Carbon and energy utilization in microbial cell extracts from soil","authors":"Milan Varsadiya ,&nbsp;Fatemeh Dehghani ,&nbsp;Shiyue Yang ,&nbsp;Evgenia Blagodatskaya ,&nbsp;Thomas Maskow ,&nbsp;Dimitri V. Meier ,&nbsp;Tillmann Lueders","doi":"10.1016/j.ejsobi.2025.103713","DOIUrl":"10.1016/j.ejsobi.2025.103713","url":null,"abstract":"<div><div>Microbial carbon use efficiency (CUE), the ratio of carbon retained in biomass vs. total C uptake, is central to our understanding of organic C turnover in soil. A precise quantification of CUE in soils can be challenging, given the considerable analytical uncertainties of organic and inorganic C backgrounds. At the same time, CUE measured for model pure cultures will be distinct from a diverse microbiota in soil. As a proxy between laboratory cultures and complex soil microbiomes, we tested soil-free microbial cell extracts (SFCE) to unravel patterns of C utilization in soil-derived microbiomes of reduced complexity. For this, we have revisited and optimized established protocols to extract microbial cells from agricultural soil via Nycodenz density centrifugation. The total extracted cells were quantified, accounting for up to ∼3.5 × 10⁷ cells g⁻¹ soil and representing ∼12.5 % of the original soil microbiome. The diversity of microbes in SFCE, while consistently reduced compared to soil, still retained a surprisingly high proportion of the original soil microbiome, with ASVs recovered from 21 phyla. We then inferred CUE from calorespirometric measurements (metabolic heat flow and CO₂ production) to compare values between SFCE and intact soil. Both were amended with substrates (glucose, glutamine, and glycerol) of different C and N content, and C oxidation state (NOSC). SFCE showed CUE values principally comparable to that of the intact soil, but with substrate-specific distinctions. Amplicon sequencing and qPCR-based quantification showed typical soil taxa like <em>Pseudomonas</em>, <em>Pseudarthrobacter</em>, and <em>Bacteroidota</em> to respond to substrate addition in soil and SFCE. Our results support the use of SFCE as a valuable and complementary approach toward elucidating microbial CUE and growth patterns for complex soil microbiota.</div></div>","PeriodicalId":12057,"journal":{"name":"European Journal of Soil Biology","volume":"124 ","pages":"Article 103713"},"PeriodicalIF":3.7,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Earthworm burrows affect vertical distribution of springtails in soil","authors":"A.F. Krediet ,&nbsp;B.S. Mönnich ,&nbsp;J. Ellers ,&nbsp;M.P. Berg","doi":"10.1016/j.ejsobi.2025.103710","DOIUrl":"10.1016/j.ejsobi.2025.103710","url":null,"abstract":"<div><div>Extreme climatic events, such as prolonged dry spells, are causing more intense soil droughts, which can be a major threat to soil life. Soil animals in general are rather sensitive to strong fluctuations in soil moisture content but may be able to escape from drought by moving deeper into the soil. Bioturbation, for example by burrowing activity of earthworms, may facilitate such vertical movement and hence moderate the consequences of drought for soil animals. Here, we investigated if earthworm burrows enable soil-dwelling Collembola to move deeper into the soil and escape drought conditions. We also tested if drought affects bioturbation activity of earthworms, and measured evaporation from soil under drought conditions. Using transparent 2D-terraria, we analyzed the effect of four burrow treatments (i.e. burrows from an anecic earthworm species, burrows from an endogeic earthworm species, artificially made burrows, no burrows), each subjected to either drought or normal soil moisture conditions. We added 40 euedaphic springtails (<em>Folsomia candida</em>) per terrarium. After two weeks, we recorded survival of the springtails and their vertical localization in the soil. We used computer vision to estimate the cover and average depth of bioturbated area from photographs of the 2D-terraria. We found that the presence of <em>Aporrectodea caliginosa</em> (endogeic) increased the survival of springtails. Under normal moisture conditions, springtails were found deeper in the soil in the presence of <em>A. longa</em> (anecic). <em>Aporrectodea longa</em> strongly increased evaporation under normal soil moisture conditions. Our experiment showed that earthworms may moderate the impact of drought on euedaphic springtails, which opens up the hypothesis that other soil fauna may benefit as well from earthworm burrowing activity.</div></div>","PeriodicalId":12057,"journal":{"name":"European Journal of Soil Biology","volume":"124 ","pages":"Article 103710"},"PeriodicalIF":3.7,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of long-term sugarcane-soybean intercropping coupled with varying levels of nitrogen input on soil legacies: A field experimental study","authors":"Shiqiang Ge ,&nbsp;Muhammad Shoaib Rana ,&nbsp;Zixuan Li ,&nbsp;Yongjian Chen ,&nbsp;Zixuan Wang ,&nbsp;Chang Shen ,&nbsp;Tantan Zhang ,&nbsp;Yinghua Shu ,&nbsp;Jianwu Wang","doi":"10.1016/j.ejsobi.2025.103711","DOIUrl":"10.1016/j.ejsobi.2025.103711","url":null,"abstract":"<div><div>Long-term agricultural management practices alter the biochemical properties of soil, leading to the formation of distinct soil legacies. Sugarcane-soybean intercropping is recognized as a sustainable and stable agricultural practice, while the application of nitrogen (N) fertilizer is essential for enhancing crop yields. However, research on the effects of long-term sugarcane-soybean intercropping coupled with varying N levels on soil legacies remains limited. Therefore, we selected four treatments in a long-term field experiment: sugarcane monoculture with reduced N application (MSN1), sugarcane monoculture with conventional N application (MSN2), sugarcane-soybean intercropping with reduced N application (SB2N1), and sugarcane-soybean intercropping with conventional N application (SB2N2). The study aims to investigate the effects of soybean intercropping coupled with varying N application levels on soil abiotic (chemical properties) and biotic (microbial communities) legacies. The results showed that under conventional N application (525 kg ha⁻¹), intercropping, compared to monoculture, significantly increased the contents of total potassium (TK), nitrate nitrogen (NO₃⁻), available zinc (AZn) and the network complexity of the arbuscular mycorrhizal fungi (AMF) community. Under intercropping conditions, reduced N application (300 kg ha⁻¹), compared to conventional N application, significantly increased the content of exchangeable calcium (ECa), pH, as well as the alpha diversity and network complexity of the bacterial community. Under monocropping conditions, conventional N application significantly increased the complexity of the bacterial community network. Stochastic processes dominated the assembly of bacterial and AMF communities, but under the same cropping pattern, deterministic processes in fungal communities increased with N application. Soil pH, N nutrients, and trace metal elements are key factors affecting the diversity and composition of soil microbial communities. These findings highlight the significant impact of intercropped soybean on soil legacies, whereas the N level of application plays a key role in regulating the effectiveness of biotic and abiotic soil legacies. This study provides valuable insights into managing soil legacies and provides a theoretical basis for the development of sustainable agriculture.</div></div>","PeriodicalId":12057,"journal":{"name":"European Journal of Soil Biology","volume":"124 ","pages":"Article 103711"},"PeriodicalIF":3.7,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143153809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Soil phosphorus dynamics and its correlation with ectomycorrhizal fungi following forest conversion in subtropical conifer (Picea asperata) forests","authors":"Lixia Wang ,&nbsp;Shiyu Song ,&nbsp;Huichao Li ,&nbsp;Yang Liu ,&nbsp;Lin Xu ,&nbsp;Han Li ,&nbsp;Chengming You ,&nbsp;Sining Liu ,&nbsp;Hongwei Xu ,&nbsp;Bo Tan ,&nbsp;Zhenfeng Xu ,&nbsp;Li Zhang ,&nbsp;Hans Lambers ,&nbsp;Douglas Godbold","doi":"10.1016/j.ejsobi.2025.103712","DOIUrl":"10.1016/j.ejsobi.2025.103712","url":null,"abstract":"<div><div>Ectomycorrhizal (ECM) fungi or their associated microbes play key roles in mobilizing phosphorus (P) from soil organic matter. Forest conversion often alters soil P availability. However, the correlation between P dynamics caused by forest conversion and changes in ECM fungi is not clear. To dress this issue, we create ECM-reduction (trenched) and ECM-intact (untrenched) conditions in the natural forest and plantation. We then measured soil microbial properties, fungal communities, and P fractions. Our results showed that the natural forest exhibited a higher proportion of inorganic phosphorus (Pi) and a lower proportion of organic phosphorus (Po) compared to the plantation, indicating that forest conversion resulted in a decrease in P mineralization. Under ECM-reduction conditions, resin-Pi contents increased in both forest types. ECM-reduction led to an increase in NaOH-Pi and a decrease in NaOH-Po in both forest types. However, ECM-reduction decreased the 1 M HCl-Pi content in the natural forest while increasing it in the plantation. Structural equation modeling revealed that in the natural forest, trenching directly affected the reads number of ECM fungi, which subsequently influenced 1 M HCl-Pi and resin-Pi contents. In the plantation, trenching impacted NaOH-Po and ECM reads number, which were associated with changes in residual-P and resin-Pi contents. These findings highlight that ECM fungi differ in their utilization of resin-Pi and their ability to mobilize primary mineral Pi (1 M HCl-Pi) and poorly-available P, depending on the soil quality of natural forests and plantations.</div></div>","PeriodicalId":12057,"journal":{"name":"European Journal of Soil Biology","volume":"124 ","pages":"Article 103712"},"PeriodicalIF":3.7,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143153810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biosolids blended with edaphic supports mimic structural and biochemical features of natural soils and foster plant biomass growth","authors":"Filipe Behrends Kraemer ,&nbsp;Diana P. Wehrendt ,&nbsp;Anabella Tobler ,&nbsp;Daiana Sainz ,&nbsp;Lucas Barbieri Oliveri ,&nbsp;Linda Jungwirth ,&nbsp;Paula Fontana ,&nbsp;Cristian Weigandt ,&nbsp;Patricia L. Fernández ,&nbsp;Melisa Altina ,&nbsp;Leandro D. Guerrero ,&nbsp;Rodrigo Pontiggia ,&nbsp;Leonardo Erijman","doi":"10.1016/j.ejsobi.2025.103709","DOIUrl":"10.1016/j.ejsobi.2025.103709","url":null,"abstract":"<div><div>Biosolids can be blended with edaphic components to formulate customized soil mixes (Technosols), where specific nutrient levels, moisture content, and other factors are tailored to support plant growth. The aim of this work was to evaluate constructed Technosols regarding specific physical, rheological, and biochemical characteristics, as well as for their ability to meet the growth requirements of rye grass. Soil horizons A and C, and quarry waste, were examined both individually as controls and in binary combinations with biosolids, maintaining a ratio of 70:30 in a replicated pot experiment. After 35 days, half of the pots were seeded with ryegrass (<em>Lolium perenne</em> ssp). After 3,5 months, the following physical, chemical, and rheological properties were measured: bulk density; plastic limit; liquid limit; saturated hydraulic conductivity; aggregate stability, organic matter and total Kjeldahl nitrogen. Enzyme activities were determined using fluorogenic substrates, whereas total bacterial and fungal composition was assessed through qPCR and amplicon sequencing using respectively 16S rRNA gene and ITS gene primers. Biosolids-based Technosols exhibited soil-like behavior across various examined variables, such as aggregate stability, microbial community composition and the yield of harvested plant biomass. Changes in the physical and chemical characteristics of mixtures containing biosolids were accompanied by corresponding changes in enzyme activities, as well as by shifts in absolute bacterial and fungal abundance. Biosolid-based Technosols possess the capability to establish sustainable and effective aggregation conditions, maintaining satisfactory water retention levels, and fostering favorable microbiological and biochemical conditions to fulfill essential soil functions, including biomass production.</div></div>","PeriodicalId":12057,"journal":{"name":"European Journal of Soil Biology","volume":"124 ","pages":"Article 103709"},"PeriodicalIF":3.7,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143153811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fire and clipping drive microbial fixation pathways in soil phosphorus and sulfur cycling in China's key karst region","authors":"Ansa Rebi ,&nbsp;Guan Wang ,&nbsp;Irsa Ejaz ,&nbsp;Trevan Flynn ,&nbsp;Jasper Kanomanyanga ,&nbsp;Tao Yang ,&nbsp;Adnan Mustafa ,&nbsp;Jinxing Zhou","doi":"10.1016/j.ejsobi.2024.103707","DOIUrl":"10.1016/j.ejsobi.2024.103707","url":null,"abstract":"<div><div>Despite growing interest in nutrient cycling genes, the influence of fire and clipping on soil microbes, phosphorus (P) and sulfur (S) cycling genes in Karst landscape remain unclear yet are critical for soil fertility in vegetation restoration landscape. Microorganisms have developed various adaptive mechanisms to improve nutrient availability in the soil in response to various landscape disturbances. In this study, we analyzed soil microbial communities and their role in mediating 90 P and 46 S genes under five fire and clipping management practices including: high-intensity fire (HIF), low-intensity fire (LIF), clipping and fire (CF), clipping (CP), and undisturbed control (CK) in Jianshui research station, Yunan province, China. The results indicated no significant (p &lt; 0.05) differences in the predominant bacterial and fungal genera among the treatments. For bacterial compositions such as Sphingomonas, the relative abundance was highest (0.069 %) in LIF. In contrast, the relative abundance of Micromonospora was lowest (0.012 %) in LIF compared to CK. In the case of the fungal genus, Rhizophagus and Trichophyton were highest (0.187, 0.128 %) in CP and LIF respectively compared to control. Bacterial diversity was highest in CF (4.69) following the CK (4.71) while Fungal diversity was highest in CP (3.33) following the CK. P cycling genes increased in LIF, particularly those related to organic phosphoester hydrolysis and transporters, while the other treatments showed no considerable changes. S cycling genes related to S mineralization and assimilation increased in HIF and LIF, respectively, with CF showing a higher presence of sulfide cycling genes. Network analysis of P and S cycling genes indicated that S interactions formed tighter clusters under fire and clipping treatments, while P interactions had more extensive connectivity among genes. These findings underscore the distinct roles and network behaviours of P and S and provide valuable insights into the microbial mechanisms that regulate P availability and S cycling in Karst soils treated with fire and clipping. This also sheds light on the taxonomy of the microbes involved in informed decision-making in karst landscape management.</div></div>","PeriodicalId":12057,"journal":{"name":"European Journal of Soil Biology","volume":"124 ","pages":"Article 103707"},"PeriodicalIF":3.7,"publicationDate":"2025-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Warmer summers have the potential to affect food security by increasing the prevalence and activity of Actinobacteria","authors":"Yuanyuan Bao ,&nbsp;Jan Dolfing ,&nbsp;Zhiying Guo ,&nbsp;Jie Liu ,&nbsp;Xianzhang Pan ,&nbsp;Xiaodan Cui ,&nbsp;Yuanyuan Wang ,&nbsp;Yang Jin ,&nbsp;Lixia Zhang ,&nbsp;Ruirui Chen ,&nbsp;Xin Li ,&nbsp;Youzhi Feng","doi":"10.1016/j.ejsobi.2024.103708","DOIUrl":"10.1016/j.ejsobi.2024.103708","url":null,"abstract":"<div><div>Climate warming impacts agricultural ecosystems in an unpredictable manner. Below-ground microbes are pivotal for aboveground productivity, but their influences on crop productivity in a warming climate are unknown. We conducted a regional-scale field survey in 253 rice‒wheat rotation systems using bacterial 16S amplicon sequencing and satellite-derived crop net primary productivity (NPP) data to investigate the relationships between soil bacteria and crop NPP under different temperatures. <em>Actinobacteria</em> were identified as the main driver of crop NPP, accounting for 4.2 % of the variation, with summer warming accounting for 11.9 % of the increase in their relative abundance. Summer warming resulted in an increase in antibiotic production genes within <em>Actinobacteria</em>, potentially reducing crop productivity by inhibiting seed germination and root elongation and by suppressing plant growth-promoting microorganisms. Taken together, our study indicates that warmer summers are expected to increase the relative abundance of soil <em>Actinobacteria</em> in rice-wheat rotation systems, which will negatively impact crop NPP due to their production of antibiotics that suppress beneficial plant microbes and/or inhibit crop seed germination and root elongation.</div></div>","PeriodicalId":12057,"journal":{"name":"European Journal of Soil Biology","volume":"124 ","pages":"Article 103708"},"PeriodicalIF":3.7,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143153808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}