Applied Soil Ecology最新文献

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Rice rhizosphere and microplastic synergistically reshaping antibiotic resistome in soil
IF 4.8 2区 农林科学
Applied Soil Ecology Pub Date : 2025-02-01 DOI: 10.1016/j.apsoil.2024.105796
Xiangmiao Su, Xinjian Huang, Yanyu Bao
{"title":"Rice rhizosphere and microplastic synergistically reshaping antibiotic resistome in soil","authors":"Xiangmiao Su,&nbsp;Xinjian Huang,&nbsp;Yanyu Bao","doi":"10.1016/j.apsoil.2024.105796","DOIUrl":"10.1016/j.apsoil.2024.105796","url":null,"abstract":"<div><div>Whether and how rhizosphere and microplastic amendment together affect antibiotic resistome remain largely unknown. Here, we investigated the dissemination of antibiotic resistance genes (ARGs) in soil and inhabited microplastic when rice growed up with polyethylene microplastic amendment of 50 particle·kg<sup>−1</sup> (low) and 200 particle·kg<sup>−1</sup> (high). Our findings suggested that a low amount microplastic exhibited a significant effect on soil ARGs, with the significant increase of total abundance from 0.236 to 0.367 in bulk soil and the significant decrease from 0.267 to 0.167 in rhizosphere soil. The combined effect of the high amount microplastic and rhizosphere synergistically promoted ARGs enrichment in inhabited microplastic. For soil and inhabited microplastic, weak co-occurrence of ARGs with bacteria (and metabolites) in rhizosphere compared with bulk soil. Almost every gene occurred a shift in the potential host bacteria from bulk to rhizosphere or from soil to the inhabited microplastic. Most soil bacterium which were positively or negatively correlated with ARGs were regulated by soil metabolites, such as indole-3-acetonitrile, 2,3-Butanediol in bulk soil and octacosane, sulfuric acid, N-Methacryloylglycine in rhizosphere soil. In soil and inhabited microplastic, the variation in ARGs profiles was mainly from the horizontal transfer triggered by mobile genetic elements (MGEs). These findings provide the microbial and metabolic mechanism on reshaping soil ARGs profile in rhizosphere with microplastic presence.</div></div>","PeriodicalId":8099,"journal":{"name":"Applied Soil Ecology","volume":"206 ","pages":"Article 105796"},"PeriodicalIF":4.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143131861","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}
引用次数: 0
Redundancy of microbial P mobilization in beech forest soils with contrasting P stock: A microbial dilution experiment
IF 4.8 2区 农林科学
Applied Soil Ecology Pub Date : 2025-02-01 DOI: 10.1016/j.apsoil.2024.105824
Yijie Shi , Sasya Samhita , Sebastian Loeppmann , Iris Zimmermann , Michaela A. Dippold , Sandra Spielvogel
{"title":"Redundancy of microbial P mobilization in beech forest soils with contrasting P stock: A microbial dilution experiment","authors":"Yijie Shi ,&nbsp;Sasya Samhita ,&nbsp;Sebastian Loeppmann ,&nbsp;Iris Zimmermann ,&nbsp;Michaela A. Dippold ,&nbsp;Sandra Spielvogel","doi":"10.1016/j.apsoil.2024.105824","DOIUrl":"10.1016/j.apsoil.2024.105824","url":null,"abstract":"<div><div>Phosphorus (P) acquisition in forest ecosystems relies on litter cycling, but foliar P concentrations in beech forests are decreasing. This highlights the urgency to understand how soil microbes adapt to P limitations caused by environmental shifts. In this study, a novel approach combining <sup>33</sup>P-wick labeling to trace litter-P recycling with a microbial dilution approach was used to study microbial P cycling associated with microbial biodiversity loss. Sterilized soils, re-inoculated with different dilutions of their native microbial communities were incubated with <sup>33</sup>P-labeled beech litter for four weeks. The kinetics of acid phosphatase and the flux of <sup>33</sup>P into different soil pools were determined. Carbon (C), nitrogen (N), and P, in soil microbial biomass and in extractable pools (e.g., P<sub>resin</sub>) were measured. The acid phosphatase activity decreased by 75–92 % with the dilution increase from 10<sup>−4</sup> to 10<sup>−6</sup> at the P-rich site, indicating a functional loss of P mobilization. The overall acid phosphatase activity was 1-fold higher at the P-deficient site than at the P-rich site, suggesting a high functional redundancy of microbial P mobilization. The recoveries of litter-derived <sup>33</sup>P in soil microbial biomass (SMB) and in P<sub>resin</sub> were 5-fold and 2-fold higher for the P-deficient site than for the P-rich site throughout all dilutions, suggesting that the recycling of litter-P by SMB in the P-deficient soil is highly redundant as an intermediate reservoir. Our study confirms that the high functional redundancy of microbial P acquisition at a P-deficient forest site can maintain pivotal microbial acquisition processes for P uptake.</div></div>","PeriodicalId":8099,"journal":{"name":"Applied Soil Ecology","volume":"206 ","pages":"Article 105824"},"PeriodicalIF":4.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143131866","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}
引用次数: 0
Distribution of plant-parasitic nematode communities across land-use types in the North of Portugal
IF 4.8 2区 农林科学
Applied Soil Ecology Pub Date : 2025-02-01 DOI: 10.1016/j.apsoil.2024.105852
Rui P. Carvalho , Carlos Guerra , Concha Cano-Díaz , Susana Mendes , Sofia R. Costa
{"title":"Distribution of plant-parasitic nematode communities across land-use types in the North of Portugal","authors":"Rui P. Carvalho ,&nbsp;Carlos Guerra ,&nbsp;Concha Cano-Díaz ,&nbsp;Susana Mendes ,&nbsp;Sofia R. Costa","doi":"10.1016/j.apsoil.2024.105852","DOIUrl":"10.1016/j.apsoil.2024.105852","url":null,"abstract":"<div><div>Plant-parasitic nematodes pose a significant threat to agriculture globally, yet, while much is known about their local effects, the large-scale distribution and primary drivers are still unknown. Our objective was to investigate the influence of land-use and other environmental factors in the distribution of plant-parasitic nematodes at regional scale. A comprehensive soil sampling campaign was conducted in the North of Portugal, covering diverse land-use types, geography and climate. A total of 406 soil samples were taken from six different land-use types: annual and perennial agriculture, pastures, urban areas, and exotic and native forests. Plant-parasitic nematodes were extracted and identified to genus level through morphological characters analysis and edaphoclimatic data was obtained from our analysis and from various European datasets. Taxonomic and functional diversity indices were calculated to evaluate the impact of land-use and environmental factors on community structure. Additionally, species distribution models using ensemble of machine learning algorithms were created to predict the potential distribution of plant-parasitic nematodes. Our findings revealed that pastures had significantly more diverse plant-parasitic nematode communities, with higher alpha diversity, biomass, and herbivory footprint. Meanwhile, forests had the lowest diversity, but more heterogeneous communities within sites. The influence of environmental factors such as soil properties, land cover, and climate on the distribution of plant-parasitic nematodes could not be established. However, the potential distribution of different genera can differ according to environmental variables. Our findings provide valuable insights into the distribution patterns of plant-parasitic nematodes in northern Portugal, which can inform future land-use planning and management strategies.</div></div>","PeriodicalId":8099,"journal":{"name":"Applied Soil Ecology","volume":"206 ","pages":"Article 105852"},"PeriodicalIF":4.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143132392","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}
引用次数: 0
Development and evaluation approach of soil quality in agricultural soils: Integrated system for a more reliable delineation of homogeneous management zones
IF 4.8 2区 农林科学
Applied Soil Ecology Pub Date : 2025-02-01 DOI: 10.1016/j.apsoil.2024.105860
Veljko Perović , Dragan Čakmak , Darko Jakšić , Miško Milanović , Marija Matić , Dragana Pavlović , Miroslava Mitrović , Pavle Pavlović
{"title":"Development and evaluation approach of soil quality in agricultural soils: Integrated system for a more reliable delineation of homogeneous management zones","authors":"Veljko Perović ,&nbsp;Dragan Čakmak ,&nbsp;Darko Jakšić ,&nbsp;Miško Milanović ,&nbsp;Marija Matić ,&nbsp;Dragana Pavlović ,&nbsp;Miroslava Mitrović ,&nbsp;Pavle Pavlović","doi":"10.1016/j.apsoil.2024.105860","DOIUrl":"10.1016/j.apsoil.2024.105860","url":null,"abstract":"<div><div>Soil quality (SQ) is of fundamental importance for sustainable agriculture, environmental conservation and food security. This study presents an integrative methodological framework for the assessment of SQ by combining indicators of soil properties with environmental variables. In a case study in Mali Zvornik, Serbia, agricultural SQ was assessed using total data set (TDS) and minimum data set (MDS) methods, incorporating additive and weighted Soil Quality Indices (SQIa and SQIw). Spatial variations in SQ were analysed using Digital Soil Mapping (DSM) and Boosted Regression Trees (BRT), while Homogeneous Management Zones (HMZ) were identified using fuzzy c-means clustering. The study analysed 18 soil indicators and selected nine key indicators for the MDS through Principal Component Analysis (PCA). Modeling was performed with 12 environmental variables, and the BRT model showed high predictive accuracy by achieving robust R<sup>2</sup> values and low prediction errors (MAE and RMSE). Topographic and vegetation factors, especially elevation and NDVI, were identified as the most influential variables affecting spatial SQI patterns. Three distinct HMZs were delineated: a high quality zone suitable for intensive agriculture, a moderately productive zone requiring targeted interventions, and a low quality zone affected by erosion and nutrient deficiency. This research highlights the effectiveness of integrating advanced modeling techniques with environmental data for accurate SQ assessment. The results provide valuable insights for agroecological planning that supports sustainable land management and rural development.</div></div>","PeriodicalId":8099,"journal":{"name":"Applied Soil Ecology","volume":"206 ","pages":"Article 105860"},"PeriodicalIF":4.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143132394","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}
引用次数: 0
Impacts of Spartina alterniflora invasion on soil carbon components of particulate and mineral-associated organic matter and soil organic matter mineralization in estuarine wetlands
IF 4.8 2区 农林科学
Applied Soil Ecology Pub Date : 2025-02-01 DOI: 10.1016/j.apsoil.2024.105857
Lin Wang , Yuan Li , Jie Hei , Weiqi Wang , Jordi Sardans , Zhihao Zhang , Fanjiang Zeng , Maoquan Ge , Yiyang Liao , Yunying Fang , Tony Vancov , Jiawei Gan , Zhaoliang Song , Weidong Zhang , Josep Peñuelas
{"title":"Impacts of Spartina alterniflora invasion on soil carbon components of particulate and mineral-associated organic matter and soil organic matter mineralization in estuarine wetlands","authors":"Lin Wang ,&nbsp;Yuan Li ,&nbsp;Jie Hei ,&nbsp;Weiqi Wang ,&nbsp;Jordi Sardans ,&nbsp;Zhihao Zhang ,&nbsp;Fanjiang Zeng ,&nbsp;Maoquan Ge ,&nbsp;Yiyang Liao ,&nbsp;Yunying Fang ,&nbsp;Tony Vancov ,&nbsp;Jiawei Gan ,&nbsp;Zhaoliang Song ,&nbsp;Weidong Zhang ,&nbsp;Josep Peñuelas","doi":"10.1016/j.apsoil.2024.105857","DOIUrl":"10.1016/j.apsoil.2024.105857","url":null,"abstract":"<div><div>Estuarine wetlands are critical global carbon sinks, significantly influencing the climate through carbon cycling. The invasive plant <em>Spartina alterniflora</em> has earned attention for its effects on these processes in wetland ecosystems. This study examines the impact of <em>S. alterniflora</em> on soil carbon dynamics in the Minjiang River estuarine wetland, Fujian Province, by comparing soil organic carbon (SOC) components in particulate organic matter (POM) and mineral-associated organic matter (MAOM) between <em>S. alterniflora</em> and native <em>Cyperus malaccensis</em> stands. We also investigated soil carbon dioxide (CO<sub>2</sub>) emissions and organic carbon mineralization to assess how plant invasion alters carbon cycling in wetland soils. The invasion of <em>S. alterniflora</em> increased dissolved organic carbon (DOC), microbial biomass carbon (MBC), and labile organic carbon (LOC) in MAOM while reducing these carbon components in POM. LOC and MBC contents in MAOM were 15 % and 32 % higher, respectively, in <em>S. alterniflora</em> wetlands compared to <em>C. malaccensis</em> wetlands. This suggests that <em>S. alterniflora</em> shifts the composition and stability of SOC, making MAOM a more significant carbon pool. The invasion also led to higher CO<sub>2</sub> emissions and greater temperature sensitivity. Additionally, <em>S. alterniflora</em> soils exhibited a negative priming effect upon glucose addition, likely due to the strong association between active organic carbon and minerals in MAOM, which protects organic matter from decomposition. These results highlight the intricate impacts of plant invasion on soil carbon cycling and offer insights for predicting carbon dynamics in estuarine wetlands.</div></div>","PeriodicalId":8099,"journal":{"name":"Applied Soil Ecology","volume":"206 ","pages":"Article 105857"},"PeriodicalIF":4.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143131688","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}
引用次数: 0
Soil and vegetation drivers of microbial attributes in a microhabitat mosaic at different successional stages after restoration of inland sand dunes
IF 4.8 2区 农林科学
Applied Soil Ecology Pub Date : 2025-02-01 DOI: 10.1016/j.apsoil.2024.105832
Kaja Skubała , Karolina Chowaniec , Małgorzata Stanek , Janusz Błaszkowski , Maciej Móll , Szymon Zubek
{"title":"Soil and vegetation drivers of microbial attributes in a microhabitat mosaic at different successional stages after restoration of inland sand dunes","authors":"Kaja Skubała ,&nbsp;Karolina Chowaniec ,&nbsp;Małgorzata Stanek ,&nbsp;Janusz Błaszkowski ,&nbsp;Maciej Móll ,&nbsp;Szymon Zubek","doi":"10.1016/j.apsoil.2024.105832","DOIUrl":"10.1016/j.apsoil.2024.105832","url":null,"abstract":"<div><div>The study focused on sand dunes restored by clearing vegetation to activate wind-blown sands. Soil-plant-microorganism interactions during succession are key to understanding the drivers of continuous turnover in above- and belowground compartments. The aim was to determine changes in microbial activity, abundance, and community composition in a heterogeneous mosaic of microhabitats, i.e., biological soil crust (BSC), below-crust soil, rhizosphere soil, and bare soil, at different stages of succession. We also studied the relationships between microorganisms and substrate and vegetation factors, to better understand microbial community development and factors driving their changes with succession. The soil environment was highly heterogeneous in terms of microorganisms, with two key compartments, i.e., BSC and rhizosphere soil, being biological hotspots of microbial biomass and activity. G− bacteria and Firmicutes showed different succession-related abundance patterns, likely due to physiological differences. The abundance of all groups of microbes was positively influenced by organic C, total N, and nutrients (P, K, Ca) in the substrate, which is linked to vegetation development with succession. Similar parameters also influenced microbial community structure, as shown by the PLFA profile. Substrate parameters explained more variability in bacterial communities, while vegetation traits were more relevant for soil fungi. Herbaceous plants were colonized by both arbuscular mycorrhizal and dark septate endophytic fungi, with the latter showing higher colonization and a significant increase with succession. Understanding the factors influencing the transition from bare sand to pine forests is crucial for the restoration of inland dunes, rare ecosystems in temperate climates vulnerable to environmental change.</div></div>","PeriodicalId":8099,"journal":{"name":"Applied Soil Ecology","volume":"206 ","pages":"Article 105832"},"PeriodicalIF":4.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143131722","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}
引用次数: 0
Effect of ivermectin and dung beetle communities on dung removal rate in cattle pastures
IF 4.8 2区 农林科学
Applied Soil Ecology Pub Date : 2025-02-01 DOI: 10.1016/j.apsoil.2025.105865
Lizbeth González-Gómez , Daniel González-Tokman , Juan H. García , Andrés Lira-Noriega , Federico Escobar
{"title":"Effect of ivermectin and dung beetle communities on dung removal rate in cattle pastures","authors":"Lizbeth González-Gómez ,&nbsp;Daniel González-Tokman ,&nbsp;Juan H. García ,&nbsp;Andrés Lira-Noriega ,&nbsp;Federico Escobar","doi":"10.1016/j.apsoil.2025.105865","DOIUrl":"10.1016/j.apsoil.2025.105865","url":null,"abstract":"<div><div>Despite the growing interest of cattle producers in maintaining and even favoring dung beetle communities in their pastures to remove dung, dung beetle species diversity has declined in tropical landscapes due to habitat loss and livestock management practices, in particular, the intensive use of the antiparasitic drug ivermectin (IVM). Among macrocyclic lactones, IVM has become the most widely used antiparasitic drug worldwide. Residues of IVM in the dung of treated animals have the potential to adversely affect non-target dung-breeding insects involved in pasture functioning, like dung beetles, whose primary function, dung removal, represents a key ecosystem service as it facilitates dung degradation and nutrient redistribution in soil. In this study, we compared removal rates of dung with and without IVM in 24 cattle pastures that either or not use this anthelmintic and analysed the relation of dung removal with dung beetle (Coleoptera: Scarabaeidae, Scarabaeinae) community attributes. We found higher dung removal rates in traps with IVM than in dung without it, although there were no differences in the amount of dung removed in pastures that use IVM or not. Dung beetle richness and number of individuals were the community attributes most strongly related to dung removal. Our results highlight the danger of the attractant effect of IVM on dung beetle communities in the study area, showing the importance of conducting field evaluations by monitoring the effects of macrocyclic lactones on this group of insects.</div></div>","PeriodicalId":8099,"journal":{"name":"Applied Soil Ecology","volume":"206 ","pages":"Article 105865"},"PeriodicalIF":4.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143131753","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}
引用次数: 0
The community diversity and metabolic function of symbiont bacteria associated with soil amoebae (dictyostelids) in free-living habitats
IF 4.8 2区 农林科学
Applied Soil Ecology Pub Date : 2025-02-01 DOI: 10.1016/j.apsoil.2024.105820
Zhaojuan Zhang , Yingkun Yang , Yujing Du , Yue Zou , Steven L. Stephenson , Yu Li , Pu Liu
{"title":"The community diversity and metabolic function of symbiont bacteria associated with soil amoebae (dictyostelids) in free-living habitats","authors":"Zhaojuan Zhang ,&nbsp;Yingkun Yang ,&nbsp;Yujing Du ,&nbsp;Yue Zou ,&nbsp;Steven L. Stephenson ,&nbsp;Yu Li ,&nbsp;Pu Liu","doi":"10.1016/j.apsoil.2024.105820","DOIUrl":"10.1016/j.apsoil.2024.105820","url":null,"abstract":"<div><div>Dictyostelids, soil protists with stable bacterial symbiosis, are significant in microbial ecology. Beyond the model organism <em>Dictyostelium discoideum</em>, other amoebae-bacteria relationships are understudied. We isolated pure cultures of symbionts from 13 Chinese soil localities. Using 16S rRNA, we identified 125 strains (40 species) across four phyla, seven classes, 10 orders, 16 families, 21 genera. Notably, five potentially novel strains were discovered. Pseudomonadota and Gammaproteobacteria were dominated. Interestingly, Gansu's alkaline soil exhibited the highest bacterial diversity, suggesting a unique ecological niche fostering diverse symbiotic interactions. Moreover, preferential predatory response by dictyostelids towards Gram (−) bacteria was observed, providing insights into their symbiotic selectivity, which may be influenced by environmental factors such as soil pH, moisture, and nutrient availability. Furthermore, Redundancy and Spearman analysis showed that elevation and temperature significantly affected the symbiont communities. FAPROTAX predicted that symbionts were mainly chemoheterotrophs involved in the nitrogen cycle or pathogenic forms. Collectively, our findings highlight the potential application of amoeba-bacteria symbiosis in modulating soil ecological functions, serving as a foundation for exploring their intricate interaction mechanisms. In addition, the ecological implications of these symbiotic relationships could have significant impacts on public health, given the role of soil microorganisms in disease transmission and environmental resilience. The data obtained from this study offers a rich context for exploring bacterial colonization of eukaryotes, the origins of symbiosis, and foundational microbiomes.</div></div>","PeriodicalId":8099,"journal":{"name":"Applied Soil Ecology","volume":"206 ","pages":"Article 105820"},"PeriodicalIF":4.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143131997","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}
引用次数: 0
Regulation of fertilization on the genes encoding microbial carbohydrate-active enzymes and their roles in accumulating and decomposing organic carbon in Ultisol
IF 4.8 2区 农林科学
Applied Soil Ecology Pub Date : 2025-02-01 DOI: 10.1016/j.apsoil.2025.105894
Xinran Wang, Jun Zhu, Qingling Fu, Hongqing Hu, Qiaoyun Huang
{"title":"Regulation of fertilization on the genes encoding microbial carbohydrate-active enzymes and their roles in accumulating and decomposing organic carbon in Ultisol","authors":"Xinran Wang,&nbsp;Jun Zhu,&nbsp;Qingling Fu,&nbsp;Hongqing Hu,&nbsp;Qiaoyun Huang","doi":"10.1016/j.apsoil.2025.105894","DOIUrl":"10.1016/j.apsoil.2025.105894","url":null,"abstract":"<div><div>The decomposition and accumulation of soil organic carbon (SOC) relate closely to the emission of greenhouse gas and the improvement of soil quality. However, the impacts of fertilizations on the genes encoding microbial carbohydrate-active enzymes (CAZymes) and their roles in decomposing and accumulating SOC are still unclear. The accumulation and dynamic of microbial residue carbon (MRC) and the mineralization of SOC in the soil treated with no fertilizer (CK), chemical fertilizer (NPK), combination of chemical fertilizer and straw (NPKS), and pig manure (AM) for long-term were observed in this study. The CAZymes, microbial community, phospholipid fatty acids (PLFAs), extracellular enzyme activities in soils were also investigated. The content of MRC and the cumulative amount of SOC mineralization were stimulated by fertilizations, especially AM treatment. Fertilization treatments increased the abundance of the special CAZymes including GH3, GH51, AA3, AA6, GH16, GH18, GH20, with a significant peak at AM. The accumulation of MRC was significantly positively correlated with the abundance of CAZymes encoding plant-derived components, the abundances of these genes were also positively correlated with microbial PLFAs (<em>P</em> &lt; 0.05). The mineralization of SOC was significantly positively correlated with the CAZymes encoding both plant- and microbial-derived components. The activities of specific enzymes (β-1, 4-glucosidase and β-1, 4-<em>N</em>-acetyl-glucosaminidase) were also closely related to the abundance of CAZymes (<em>P</em> &lt; 0.01). Therefore, the regulation of fertilization on the CAZymes for the degradation of different carbon source probably impact the synthesis of microbial biomass and the activity of enzymes, and then result in the alterations of SOC accumulation and dynamics.</div></div>","PeriodicalId":8099,"journal":{"name":"Applied Soil Ecology","volume":"206 ","pages":"Article 105894"},"PeriodicalIF":4.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143132031","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}
引用次数: 0
The role of rhizosphere microbial community structure in the growth and development of different tea cultivars
IF 4.8 2区 农林科学
Applied Soil Ecology Pub Date : 2025-02-01 DOI: 10.1016/j.apsoil.2024.105817
Xinyue Yin , Yujie Song , Jiazhi Shen , Litao Sun , Kai Fan , Hao Chen , Kangwei Sun , Zhaotang Ding , Yu Wang
{"title":"The role of rhizosphere microbial community structure in the growth and development of different tea cultivars","authors":"Xinyue Yin ,&nbsp;Yujie Song ,&nbsp;Jiazhi Shen ,&nbsp;Litao Sun ,&nbsp;Kai Fan ,&nbsp;Hao Chen ,&nbsp;Kangwei Sun ,&nbsp;Zhaotang Ding ,&nbsp;Yu Wang","doi":"10.1016/j.apsoil.2024.105817","DOIUrl":"10.1016/j.apsoil.2024.105817","url":null,"abstract":"<div><div>The community structure of soil rhizosphere microorganisms is critical for tea plant growth, but few studies have examined how rhizosphere microorganisms from different tea cultivars affect the plant growth and underlying mechanisms. The study investigated the environment of soils, including rhizosphere microorganisms, soil nutrient levels, enzyme activity, as well as the growth parameters, including Fv/Fm value, N content, SPAD value and vegetation indexes of four tea cultivars. The results showed that the structure of the soil microbial community varied according to tea cultivar types, which was manifested in α diversity, microbial genus level, and bacterial communities. The soil nutrient content and soil enzyme activity had significant differences among tea cultivars, especially the absorption and transformation of nitrogen and phosphorus, as well as organic matters. The rhizosphere microorganisms of different cultivars had certain effects on tea canopy index. A strong correlation was observed between microbial communities and the vegetation index. <em>Ascomycota</em>, <em>Basidiomycota</em>, <em>Actinobacteriota</em>, and other microorganisms may be the key species affecting the phenotype of tea plants. The study demonstrates that different tea cultivars select or recruit their own unique microbial communities, affecting soil nutrient uptake and tea plant phenotype. The study enhances our mechanistic understanding of plant-soil interactions among different tea cultivars.</div></div>","PeriodicalId":8099,"journal":{"name":"Applied Soil Ecology","volume":"206 ","pages":"Article 105817"},"PeriodicalIF":4.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143132172","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}
引用次数: 0
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