Article
Biochemistry & Molecular Biology
Can Li, Zhishang Shi, Jinxing Cai, Ping Wang, Fang Wang, Meiting Ju, Jinpeng Liu, Qilin Yu
Summary: This study synthesized functionalized magnetic nanoparticles for efficiently capturing soil enzymes and sensitively assessing enzyme activity. The functionalized nanoparticles showed higher protein-capturing capacity and effectively captured different types of soil enzymes. Based on these nanoparticles, a method for determining trace enzyme activity in rhizosphere soil was developed.
Article
Biology
Francesca D'Angelo, Elena Fernandez-Fueyo, Pierre Simon Garcia, Helena Shomar, Martin Pelosse, Rita Rebelo Manuel, Ferhat Buke, Siyi Liu, Niels van den Broek, Nicolas Duraffourg, Carol de Ram, Martin Pabst, Emmanuelle Bouveret, Simonetta Gribaldo, Beatrice Py, Sandrine Ollagnier de Choudens, Frederic Barras, Gregory Bokinsky
Summary: Iron-sulfur (Fe-S) clusters play crucial roles in various metabolic and regulatory processes, but Fe-S enzymes often fail to function in non-native host species. By studying the compatibility of non-native Fe-S enzymes, we found a significant correlation between phylogenetic distance and probability of functional expression. Coexpression of heterologous Fe-S biogenesis pathways can expand the range of compatible orthologs. Moreover, Fe-S enzymes requiring specific electron carrier proteins usually require their taxon-specific reducing partners for successful expression.
Article
Plant Sciences
Fan Zhang, Mengru Chen, Jintao Fu, Xiangzhu Zhang, Yuan Li, Yingying Xing
Summary: This study investigates the effects of different irrigation and fertilization methods on potato yield, soil fertility, and soil enzyme activity. The results show that the treatment with 80% ETC, 180-90-225 kg/ha, and Qingshu 9 has the highest soil enzyme activity and yield.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Biotechnology & Applied Microbiology
Supriya Majumder, Michael A. Powell, Pabitra Kumar Biswas, Pabitra Banik
Summary: This study examined the impact of arsenic contamination on ecosystem functioning and soil enzyme activity. The results showed that aerobic conditions significantly reduced soil arsenic levels and increased enzyme activities. Organic manure amendment further enhanced enzyme activities under aerobic conditions. Differences in arsenic concentrations had inhibitory effects on most soil enzyme activities, except for urease activity.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2022)
Article
Soil Science
Ilil Levakov, Zeev Ronen, Hagar Siebner, Ofer Dahan
Summary: Analyzing free enzyme activity in pore-water samples is a reliable method for understanding biological activity in soils, showing a high correlation with enzymatic activities measured directly from soil samples. This approach offers a simple, non-destructive, and continuous way to assess biogeochemical dynamics under changing environmental conditions. Preliminary implementation in a contaminated site also demonstrated a strong correlation between in-situ enzyme activity measurement and pollutant biodegradation rate in the soil.
SOIL BIOLOGY & BIOCHEMISTRY
(2021)
Article
Agronomy
Piotr Wojewodzki, Joanna Lemanowicz, Bozena Debska, Samir A. Haddad
Summary: This study investigated the influence of biochar produced from various organic materials on soil enzyme activity, and found that the response of enzymatic activity to biochar depends on the feedstock material and the incubation time. It is necessary to determine the TOC/TN ratio when using biochar, and additional nitrogen fertilization or mixtures of different biochars can be considered.
Article
Soil Science
Taiki Mori
Summary: The ratio of beta-1,4-glucosidase (BG) activity to phosphomonoesterase (PME) activity is an indicator of microbial phosphorus (P) demand. Comparing with other soils, tropical soils have higher microbial P demand and fertilization can partly satisfy this demand. The usage of BG:PME ratio as an indicator of microbial P demand may overestimate P shortages in tropical soils.
APPLIED SOIL ECOLOGY
(2022)
Article
Biology
Huilei Wang, Alan Poe, Lydia Pak, Kavitha Nandakumar, Sandeep Jandu, Jochen Steppan, Reik Loeser, Lakshmi Santhanam
Summary: The study developed an in situ activity assay using hydrazides to detect total LOX activity in both overexpressed and endogenous LOXs in cells and tissue samples, providing new insights for studying LOXs as therapeutic targets.
COMMUNICATIONS BIOLOGY
(2021)
Article
Soil Science
Jipeng Wang, Guanrui Chen, Shuhao Ji, Yiqiu Zhong, Qian Zhao, Qingqing He, Yanhong Wu, Haijian Bing
Summary: Extracellular enzymes (EEs) play vital roles in soil organic matter transformations. The study finds that EE gene abundance is positively correlated with EE activity. The direct gene-enzyme link suggests the importance of gene-informed Earth system models in predicting soil carbon dynamics.
SOIL BIOLOGY & BIOCHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Xianqing Tang, Jinghuang Chen, Mengqian Zhang, Jian Sun, Xiurong Yang
Summary: A facile hydrothermal method was developed to prepare FeWO4 nanomaterials with intrinsic peroxidase-like activity, and the catalytic activity was significantly enhanced by adjusting the size and oxygen vacancy content. A colorimetric assay based on FeWO4 was constructed to detect PPi and ALP activity. The proposed method successfully evaluated ALP activity in real serum samples and screened for potential ALP inhibitors.
SCIENCE CHINA-CHEMISTRY
(2023)
Article
Forestry
Yifan Zheng, Yunqi Wang, Yonglin Zheng, Yifan Li
Summary: This study conducted a year-long acid rain experiment to explore the effects of different concentrations of acid rain on soil nutrient content and nutrient utilization efficiency. The results showed that acid rain promoted the accumulation of soil nutrients and had significant effects on soil enzyme activity. Furthermore, acid rain reduced the available nutrient content and inhibited the enzyme activity involved in nutrient utilization efficiency.
Article
Soil Science
Hanyue Huang, Di Tian, Luhong Zhou, Haojie Su, Suhui Ma, Yuhao Feng, Zhiyao Tang, Jiangling Zhu, Chengjun Ji, Jingyun Fang
Summary: This study conducted a meta-analysis of the effects of afforestation on soil microbial diversity and enzyme activity. The results showed that afforestation significantly increased soil fungal diversity and enzyme activities, while soil bacterial diversity did not change significantly. The response varied across afforestation durations, climate zones, prior land use types, and species.
Article
Engineering, Biomedical
Bicheng Yao, Jiamin Zhao, Siyang Ding, Marie-Claire Giel, Guoqiang Zhang, Dan Ding, Youhong Tang, Zhe H. Weng, Yuning Hong
Summary: A red-emissive probe TBPG was developed to measure the activity of beta-Glucosidase (beta-Glu). The probe exhibited fluorescence turn-on process upon hydrolysis in the presence of beta-Glu. The optimized detection conditions show excellent linearity, wide linear dynamic range, and low limit of detection.
Article
Chemistry, Multidisciplinary
Jiajiang Lin, Kayan Ma, Huaihai Chen, Zuliang Chen, Baoshan Xing
Summary: The study found that different types of engineered nanomaterials have varying effects on soil enzyme activity, with Ag and Cu NMs showing significant negative impacts. The inhibition of enzymes by NMs increases with dose, decreases with prolonged exposure, and is highly dependent on soil properties. These results provide insights into the future design and safe use of specific NMs such as Zn and Fe NMs.
Article
Environmental Sciences
Liqun Zhang, Jie Hu, Chang Li, Yeyu Chen, Liugen Zheng, Dan Ding, Shifeng Shan
Summary: This study prepared bamboo-derived biochar loaded with different ratios of iron and manganese and evaluated its remediation performance in arsenic-contaminated soil. The study proposed the optimal ratio and mechanism of iron-manganese removal of arsenic, and explained the relationship between enzyme activity and soil environmental factors.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Soil Science
Scott Buckley, Richard Brackin, Sandra Jamtgard, Torgny Nasholm, Susanne Schmidt
SOIL BIOLOGY & BIOCHEMISTRY
(2020)
Article
Plant Sciences
Henrik Svennerstam, Sandra Jamtgard
Summary: This study compared two established methods for determining plant amino acid uptake. The results showed that time is a crucial factor in determining plant amino acid uptake. Post-uptake metabolism in plants may result in significant carbon loss, indicating that both pre-uptake metabolism by microbes and post-uptake metabolism in plants contribute to the reported N-15-C-13 mismatch in ecological studies.
Article
Soil Science
Scott Buckley, Richard Brackin, Torgny Nasholm, Susanne Schmidt, Sandra Jamtgard
Summary: Root exudates are believed to enhance nitrogen availability through rhizosphere interactions, but it is difficult to obtain empirical evidence due to the scale and temporary nature of the processes. Our study using microdialysis technique found that the release of sucrose did not increase inorganic nitrogen availability in the short term, possibly due to stimulated microbial growth and increased nitrogen demand.
Article
Environmental Sciences
Renuka Mahadevan, Kai Du, Lemuel Samejon Preciados, Susanne Schmidt
Summary: This study examines the technical efficiency in farming by considering nitrogen pollutants and explicitly modeling them as undesirable outputs. The research finds improvements in green technical efficiency but no change in conventional technical efficiency in rice-producing provinces in the Philippines. The quality of seeds is identified as an important factor for green technical efficiency but not for conventional technical efficiency.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Biodiversity Conservation
Maria V. Vega-Cofre, Wendy Williams, Young Song, Susanne Schmidt, Paul G. Dennis
Summary: Biocrusts play important roles in rangeland ecosystems. This study investigated the impacts of cattle grazing and fire management on the diversity and composition of biocrust and associated soil bacterial communities. The results showed that grazing had significant effects on bacterial community composition, particularly in one soil type, while fire management did not have significant impacts on bacterial communities. The findings suggest that livestock presence increases the proportional representation of cyanobacteria in biocrust and associated soil microbiomes, and fire management does not strongly affect these communities from a taxonomic perspective.
ECOLOGICAL INDICATORS
(2023)
Article
Ecology
Than Myint Swe, Wendy J. J. Williams, Susanne Schmidt, Andries Potgieter, Robyn Cowley, Vincent Mellor, Colin Driscoll, Yan Zhao
Summary: Biocrusts are important for ecosystem services in Australia's northern savannas, but current monitoring methods are time-consuming and expensive. This study used machine learning software and a segmentation model to analyze mobile phone photographs and compared the results to field observations. The study found that mobile phone photographs can effectively monitor dry-season ground cover, providing an efficient method for land managers to track ground cover over time.
Review
Multidisciplinary Sciences
Jonathan Morizet-Davis, Nirvana A. Marting Vidaurre, Evelyn Reinmuth, Esmaeil Rezaei-Chiyaneh, Valentin Schlecht, Susanne Schmidt, Kripal Singh, Ricardo Vargas-Carpintero, Moritz Wagner, Moritz von Cossel
Summary: This paper reviews and evaluates the main ecosystem services at the farm level, including provisioning, regulating, habitat, and cultural services. It also discusses the trade-offs and evaluation of these services, and proposes a stakeholder approach framework for farm-level ecosystem services.
Article
Biodiversity Conservation
Vithya Krishnan, Nicole Robinson, Jennifer Firn, John Herbohn, Susanne Schmidt
Summary: Restoration of degraded tropical lands is crucial for biodiversity conservation and livelihoods. This study suggests that the application of the amino acid arginine can reduce water use in tropical tree seedlings under water limitation, compared with conventional ammonium nitrate fertiliser. Therefore, alternative nitrogen sources should be considered to enhance drought resilience and improve survival in restoration plantings.
PLANTS PEOPLE PLANET
(2023)
Article
Soil Science
Scott Buckley, Hyungwoo Lim, John D. Marshall, Dorte Randewig, Olusegun Ayodeji Oyewole, Torgny Nasholm, Sandra Jamtgard
Summary: Microdialysis is a useful tool for measuring soil compound fluxes with minimal disturbance to soil structure and function. A method to quantify the connectivity of the microdialysis probe membrane to the surrounding soil is presented using water exchange. Results show that the active membrane surface area reaches only a fraction of the total surface area, but approaches the area likely in contact with water when accounting for soil moisture.
Article
Environmental Sciences
Kelley R. Bassett, Lars Ostlund, Michael J. Gundale, Jonas Fridman, Sandra Jamtgard
Summary: Boreal forests are important in the global carbon cycle, and understanding their response to environmental change, such as nitrogen and water limitation, is crucial for future forest growth and carbon storage. Using tree cores from Sweden, this study investigated wood traits related to nitrogen availability and water stress over a 67-year period. The results showed temporal changes in wood traits, with strong decline in wood δ15N indicating nitrogen limitation, while wood δ13C remained stable, suggesting no change in water stress. Different dendrochronological methods also showed discrepancies in wood trait patterns. The study highlights the need for new methods and practices in dendroecology for studying highly mobile element cycles and understanding environmental change in high latitude ecosystems.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Food Science & Technology
Shuaixiang Zhao, Susanne Schmidt, Hongjian Gao, Tingyu Li, Xinping Chen, Yong Hou, Dave Chadwick, Jing Tian, Zhengxia Dou, Weifeng Zhang, Fusuo Zhang
Summary: This study conducted a global meta-analysis to identify the key predictors of compost on crop yield, soil organic carbon, and nitrous oxide emissions. It proposed a precision compost strategy (PCS) that aligns suitable composts and application methods with target crops and growth environments, which has the potential to increase major cereal crop production by 4% and restore 26.5% of current topsoil soil organic carbon stocks on a global scale.
Article
Forestry
Hyungwoo Lim, Sandra Jamtgard, Ram Oren, Linda Gruffman, Sabine Kunz, Torgny Nasholm, Erich Inselsbacher
Summary: The study on Scots pine seedlings showed that supplying organic nitrogen resulted in stable soil nitrogen flux, leading to increased seedlings' growth and nitrogen recovery, as well as reduced risk of nitrate loss. The link between traits and nitrogen uptake in response to different nitrogen sources was highlighted, indicating the importance of stable nitrogen supply for plant nutrition and growth.
Article
Forestry
Regina Gratz, Iftikhar Ahmad, Henrik Svennerstam, Sandra Jamtgard, Jonathan Love, Mattias Holmlund, Rumen Ivanov, Ulrika Ganeteg
Summary: The contribution of amino acids to soil nitrogen fluxes is higher than previously thought, especially in boreal ecosystems where amino acid uptake is crucial for nitrogen nutrition. By studying amino acid transporters, a potential tool for enhancing overall plant nitrogen levels and biomass production was identified in hybrid aspen.
Article
Microbiology
Krista L. Plett, Scott Buckley, Jonathan M. Plett, Ian C. Anderson, Judith Lundberg-Felten, Sandra Jamtgard
Summary: The colonization of tree roots by ectomycorrhizal fungi involves signaling exchanges between organisms before physical contact. A new microdialysis method was used to sample metabolites released from Eucalyptus grandis and Pisolithus microcarpus independently and during indirect contact. The study found that indirect contact altered the secretion of metabolites, leading to a distinct metabolomic profile. Many metabolites were produced within the first hour of contact, including phenylpropanoids, fatty acids, and organic acids.
Article
Soil Science
C. Beraud, F. Piola, J. Gervaix, G. Meiffren, C. Creuze des Chatelliers, A. Delort, C. Boisselet, S. Poussineau, E. Lacroix, A. A. M. Cantarel
Summary: This study investigated the soil factors influencing the development of biological denitrification inhibition (BDI) and found that initial soil moisture, ammonium concentration, and the initial abundance of certain microbial genes play significant roles in BDI development. Additionally, the research highlighted the relevance of biotic factors in explaining BDI and proposed the use of procyanidin concentration from plant belowground system as a new proxy for measuring BDI intensity.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Yizhu Qiao, Tingting Wang, Qiwei Huang, Hanyue Guo, He Zhang, Qicheng Xu, Qirong Shen, Ning Ling
Summary: Soil microbial community coalescence, the mixing and interaction of microbial communities, has been found to enhance the stability and complexity of rhizobacterial networks, leading to improved plant health and biomass. This study investigated the effects of different degrees of bacterial community coalescence on plant disease resistance by mixing soils from healthy and diseased habitats for watermelon planting. The results showed that mixing in more healthy soil reduced the plant disease index and increased biomass by improving the stability and complexity of the rhizobacterial network. Core taxa Nitrospirillum and Singulisphaera were enriched in the rhizosphere from healthy soils and played important roles in disease suppression and regulating the positive cohesion and modularity of the networks. Overall, these findings provide insights into the potential mechanism of microbial community coalescence for improving plant microbial community function and suggest new tools for enhancing plant fitness via soil microbiota mixing.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Mengqiu He, Shending Chen, Lei Meng, Xiaoqian Dan, Wenjie Wang, Qinying Zhu, Zucong Cai, Jinbo Zhang, Pierfrancesco Nardi, Christoph Mueller
Summary: Maize genotypes directly affect gene expression and nitrogen uptake capacity. The feedback between maize genotypes and soil nitrogen transformations, as well as their regulations on nitrogen uptake capacity, have been studied. The findings suggest that maize genotypes play a central role in regulating these feedbacks, which are important for maize breeding and enhancing maize production.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Ke Shi, Jiahui Liao, Xiaoming Zou, Han Y. H. Chen, Manuel Delgado-Baquerizo, Zhengming Yan, Tingting Ren, Honghua Ruan
Summary: Through rewilding, microbial extracellular and cellular residues can continuously accumulate in soils and significantly contribute to soil organic carbon sequestration. Extracellular residues are mainly driven by fine root biomass, while cellular residues are mainly driven by soil nitrogen and organic carbon content.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Sensen Chen, Ying Teng, Yongming Luo, Eiko Kuramae, Wenjie Ren
Summary: This study comprehensively assesses the effects of NMs on the soil microbiome through a global meta-analysis. The results reveal significant negative impacts of NMs on soil microbial diversity, biomass, activity, and function. Metal NMs, especially Ag NMs, have the most pronounced negative effects on various soil microbial community metrics.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Shareen K. D. Sanders, Gerard Martinez-De Leon, Ludovico Formenti, Madhav P. Thakur
Summary: Collembolans, the diverse group of soil invertebrates, are affected by anthropogenic climate warming, which alters their diversity and density. In addition to abiotic stressors, changes in food availability, specifically the abundance of saprotrophic and mycorrhizal fungi, influence Collembola responses to climate warming. Collembolans prefer saprotrophic fungi but rely on mycorrhizal fungi when food sources are scarce. Understanding the mechanisms behind these dietary shifts in warm-dry and warm-wet soil conditions is crucial for predicting the impact of climate change on Collembola-fungal interactions.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Wimonsiri Pingthaisong, Sergey Blagodatsky, Patma Vityakon, Georg Cadisch
Summary: A study found that mixing high-C/N ratio rice straw with low-C/N ratio groundnut stover can improve the chemical composition of the input, stimulate microbial growth, decrease the loss of residue-derived carbon in the soil, and reduce native soil carbon and nitrogen consumption.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Jiachen Wang, Jie Zhao, Rong Yang, Xin Liu, Xuyuan Zhang, Wei Zhang, Xiaoyong Chen, Wende Yan, Kelin Wang
Summary: Nitrogen is vital for ecosystem productivity, restoration, and succession processes. This study found that legume intercropping was more effective than chemical nitrogen fertilizers in promoting the complexity and stability of the soil micro-food web, as it increased microbial and nematode communities and enhanced energy flow patterns.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)