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Pristine/magnesium-loaded biochar and ZVI affect rice grain arsenic speciation and cadmium accumulation through different pathways in an alkaline paddy soil

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Journal of Environmental Sciences 2025年第1期147卷 630-641页

作者： Chen Zhang Dong Shi Chao Wang Guoxin Sun Huafen Li Yanxia Hu Xiaona Li Yanhui Hou Ruilun Zheng Institute of Grassland Flowers and EcologyBeijing Academy of Agriculture and Forestry SciencesBeijing 100097China Beijing key laboratory of Farmland Soil Pollution Prevention and Remediation Key Laboratory of Plant-Soil Interactions of the Ministry of EducationCollege of Resources and Environmental SciencesChina Agricultural UniversityBeijing 100193China State key laboratory of Urban and Regional Ecology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China

Cadmium(Cd)and arsenic(As)co-contamination has threatened rice production and food *** is challenging to mitigate Cd and As contamination in rice simultaneously due to their opposite geochemical ***-loaded biochar with outstanding adsorption capacity for As and Cd was used for the first time to remediate Cd/As contaminated paddy *** addition,the effect of zero-valent iron(ZVI)on grain As speciation accumulation in alkaline paddy soils was first *** effect of rice straw biochar(SC),magnesiumloaded rice straw biochar(Mg/SC),and ZVI on concentrations of Cd and As speciation in soil porewater and their accumulation in rice tissueswas investigated in a pot *** of SC,Mg/SC and ZVI to soil reduced Cd concentrations in rice grain by 46.1%,90.3%and 100%,and inorganic As(iAs)by 35.4%,33.1%and 29.1%,respectively,and reduced Cd concentrations in porewater by 74.3%,96.5%and 96.2%,*** of 51.6%and 87.7%in porewater iAs concentrationswere observed with Mg/SC and ZVI amendments,but notwith *** acid(DMA)concentrations in porewater and grain increased by a factor of 4.9 and 3.3,respectively,with ZVI *** three amendments affected grain concentrations of iAs,DMA and Cd mainly by modulating their translocation within plant and the levels of As(Ⅲ),silicon,dissolved organic carbon,iron or Cd in *** three amendments(SC,Mg/SC and ZVI)have the potential to simultaneously mitigate Cd and iAs accumulation in rice grain,although the pathways are different.

关键词： Cadmium(Cd) Arsenic(As)speciation Co-contamination Magnesium-loaded biochar Zero-valent iron(ZVI) Rice

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Control of Differential Tectonic Evolution on Tectonic Fractures in Different Tectonic Segments of Tight Gas Sandstone Reservoirs: Upper Triassic Xujiahe Formation， Western Sichuan Foreland Basin

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Journal of Earth Science 2025年

作者： Yunzhao Zhang Lianbo Zeng Rongjun Zhang Le Qu Hao Wu Quanqi Dai School of Earth Sciences and Engineering， Xi'an Shiyou University Shaanxi key laboratory of Petroleum Accumulation Geology， School of Earth Sciences and Engineering， Xi'an Shiyou University State key laboratory of Petroleum Resources and Prospecting， China University of Petroleum (Beijing) College of Geosciences， China University of Petroleum (Beijing) College of Petroleum Engineering， Xi'an Shiyou University Xi'an key laboratory of Tight oil (Shale oil) Development， Xi'an Shiyou University China key laboratory of Mineral Resources in Western China， School of Earth Sciences， Lanzhou University State key laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development， SINOPEC key laboratory of carbon capture， Utilization and Storage， Petroleum Exploration and Production Research Institute of SINOPEC

In the context of complex tectonic evolution， due to the control of tectonic compression stress and faults on tectonic fractures， the formation and development of tectonic fractures in the T3x2tight reservoirs present significant variations across different tectonic segments in the Western Sichuan Foreland Basin. We clarified the control of differential tectonic evolution on the formation and development of tectonic fractures in different tectonic segments through field-based observations， core samples， image logging， as well as fluid inclusion petrography and temperature determinations of fracture-filling materials， combined with 2D balanced cross-section restoration. The study area primarily manifests two types of tectonic fractures in the tight reservoirs: orogen-related fractures （regional fractures） and fault-related fractures. The orientations of these fractures are predominantly E-W， nearly N-S， NE， and NW. Specifically， the northern segment area only shows the development of regional fractures， while the southern and middle segments exhibit the development of both regional and tectonic fractures. There are three phases of tectonic fractures in different tectonic segments， and their formation times are relatively consistent. The Mesozoic tectonic events had a significant impact on the northern and central segments， with the amount of tectonic shortening and the rate of stratigraphic shortening gradually decreasing from the northeast to the southwest. The compressional stress resulting from tectonic compression also decreases from the northeast to the southwest. As a result， the development of first-phase and second-phase tectonic shear fractures is more pronounced in the northern and middle segments compared to the southern segment. Under the significant control of faults， the development of N-S- and NE-oriented fault-related fractures is more pronounced in the southern segment， while the development of NE-oriented fault-related fractures is relatively higher

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Nitrogen addition promotes soil carbon accumulation globally

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Science China(Life Sciences) 2025年第1期68卷 284-293页

作者： Xuemei Yang Suhui Ma Erhan Huang Danhua Zhang Guoping Chen Jiangling Zhu Chengjun Ji Biao Zhu Lingli Liu Jingyun Fang Institute of Ecology College of Urban and Environmental Sciencesand Key Laboratory for Earth Surface Processes of the Ministry of EducationPeking UniversityBeijing 100871China Ministry of Education key laboratory for Transboundary Ecosecurity of Southwest China School of Ecology and Environmental ScienceYunnan UniversityKunming 650500China State key laboratory of Vegetation and Environmental Change Institute of BotanyChinese Academy of SciencesBeijing 100093China

Soil is the largest carbon(C)reservoir in terrestrial ecosystems and plays a crucial role in regulating the global C cycle and climate *** nitrogen(N)deposition has been widely considered as a critical factor affecting soil organic carbon(SOC)storage,but its effect on SOC components with different stability remains ***,we analyzed extensive empirical data from 304 sites worldwide to investigate how SOC and its components respond to N *** analysis showed that N addition led to a significant increase in bulk SOC(6.7%),with greater increases in croplands(10.6%)and forests(6.0%)compared to grasslands(2.1%).Regarding SOC components,N addition promoted the accumulation of plant-derived C(9.7%–28.5%)over microbial-derived C(0.2%),as well as labile(5.7%)over recalcitrant components(–1.2%),resulting in a shift towards increased accumulation of plant-derived labile ***,N addition led to a greater increase in particulate organic C(11.9%)than mineral-associated organic C(3.6%),suggesting that N addition promotes C accumulation across all pools,with more increase in unstable than stable *** responses of SOC and its components were best predicted by the N addition rate and net primary ***,our findings suggest that N enrichment could promote the accumulation of plant-derived and non-mineral associated C and a subsequent decrease in the overall stability of soil C pool,which underscores the importance of considering the effects of N enrichment on SOC components for a better understanding of C dynamics in soils.

关键词： meta-analysis nitrogen enrichment soil organic carbon carbon accumulation carbon stability

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Integrated metabolomics and proteomics analyses reveal the molecular mechanism underlying the yellow leaf phenotype of Camellia sinensis

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Horticultural plant Journal 2025年第1期11卷 417-430页

作者： Nana Li Weizhong He Yufan Ye Mingming He Taimei Di Xinyuan Hao Changqing Ding Yajun Yang Lu Wang Xinchao Wang National Center for Tea plant Improvement Tea Research InstituteChinese Academy of Agricultural Sciences/Key Laboratory of BiologyGenetics and Breeding of Special Economic Animals and PlantsMinistry of Agriculture and Rural AffairsHangzhouZhejiang 310008China Tea Research Institute Lishui Academy of Agricultural and Forestry SciencesLishuiZhejiang 323000China College of Horticulture Fujian Agriculture and Forestry University/Key Laboratory of Tea Science in Universities of Fujian ProvinceFuzhouFujian 350002China

The tea plant cultivar‘Zhonghuang 2'(ZH2)possesses albino-induced yellow leaves that contain low levels of catechins but high contents of amino ***,the molecular mechanism underlying the yellow leaf phenotype of ZH2 has not been elucidated *** the current research,the yellow shoots(ZH2-Y)and naturally converted green shoots(ZH2-G)of ZH2 were studied using metabolic and proteomic profiling for a better understanding of the mechanism underlying phenotype *** total,107 differentially changed metabolites(DCMs)were identified from the GC-MS-based metabolomics,and 189 differentially accumulated proteins(DAPs)were identified from the tandem mass tag(TMT)-based quantitative ***,integrated analysis revealed that‘porphyrin and chlorophyll metabolism',‘carbon fixation in photosynthetic organisms',and‘phenylpropanoid biosynthesis'pathways were commonly enriched for DAPs and *** further found that the inhibition of chlorophyll biosynthesis,the deficiency of photosynthetic proteins and the imbalance of the ROS-scavenging system were the crucial reasons responsible for the chlorosis,chloroplast abnormality and photooxidative damage of ZH2 ***,our research combines metabolomics and proteomics approaches to uncover the molecular mechanism leading to the yellow leaf phenotype of tea plants.

关键词： Tea plant Chlorophyll-deficient mutant Chlorophyll biosynthesis Photosynthetic protein Antioxidant capacity Photooxidative stress

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New insights into the phylogeny and infrageneric taxonomy of Saussurea based on hybrid capture phylogenomics(Hyb-Seq)

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plant Diversity 2025年第1期47卷 21-33页

作者： Liansheng Xu Zhuqiu Song Tian Li Zichao Jin Buyun Zhang Siyi Du Shuyuan Liao Xingjie Zhong Yousheng Chen plant Science Research Center South China Botanical GardenChinese Academy of SciencesGuangzhou 510650China key laboratory of National Forestry and Grassland Administration on plant Conservation and Utilization in Southern China Guangzhou 510650China University of the Chinese Academy of Sciences Beijing 100049China Central-Southern Safety and Environment Technology Institute Co. LTDWuhan 430064China

Saussurea is one of the largest and most rapidly evolving genera within the Asteraceae,comprising approximately 520 species from the Northern Hemisphere.A comprehensive infrageneric classification,supported by robust phylogenetic trees and corroborated by morphological and other data,has not yet been *** the first time,we recovered a well-resolved nuclear phylogeny of Saussurea consisting of four main clades,which was also supported by morphological *** analyses show that ancient hybridization is the most likely source of deep cytoplasmic-nuclear conflict in Saussurea,and a phylogeny based on nuclear data is more suitable than one based on chloroplast data for exploring the infrageneric classification of *** on the nuclear phylogeny obtained and morphological characters,we proposed a revised infrageneric taxonomy of Saussurea,which includes four subgenera and 13 ***,1)***,***,***,and *** were moved from *** to ***,2)*** was moved from *** to ***,and 3)*** was moved from *** to ***.

关键词： Asteraceae Morphology Next-generation sequencing Phylogenomics Subgenus

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Triazine-COF@Silicon nanowire mimicking plant leaf to enhance photoelectrocatalytic CO_(2)reduction to C2þchemicals

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Green Energy & Environment 2025年第2期10卷 422-432页

作者： Wenrui Wan Fanhua Meng Si Chen Jianhua Wang Chunyan Liu Yan Wei Chenpu He Li Fan Qiaolan Zhang Weichun Ye Huanwang Jing State key laboratory of Applied Organic Chemistry College of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou730000GansuChina key laboratory of Green Chemical Media and Reactions(Ministry of Education) School of Chemistry and Chemical EngineeringHenan Normal UniversityXinxiang453007HenanChina School of Chemical Engineering Lanzhou University of Arts and SciencesLanzhou730010China

Converting CO_(2)and water into valuable chemicals like plant do is considered a promising approach to address both environmental and energy *** inspiration from the structures of natural leaves,we designed and synthesized a novel copper-coordinated covalent triazine framework(CuCTF)supported by silicon nanowire arrays on wafer *** marks the first-ever application of such a hybrid material in the photoelectrocatalytic reduction of CO_(2)under mild *** Si@CuCTF6 heterojunction has exhibited exceptional selectivity of 95.6%towards multicarbon products(C^(2+))and apparent quantum efficiency(AQE)of 0.89%for carbon-based *** active sites of the catalysts are derived from the nitrogen atoms of unique triazine ring structure in the ordered porous framework and the abundant Cu-N coordination sites with bipyridine ***,through DFT calculations and operando FTIR spectra analysis,we proposed a comprehensive mechanism for the photoelectrocatalytic CO_(2)reduction,confirming the existence of key intermediate species such as*CO_(2)-,*=C=O,*CHO and*CO-CHO *** work not only provides a new way to mimic photosynthesis of plant leaves but also gives a new opportunity to enter this research field in the future.

关键词： Silicon Photoelectrocatalysis CO_(2)reduction Covalent triazine framework Sustainable chemistry

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Engineering nanoparticle structure at synergistic Ru-Na interface for integrated CO_(2)capture and hydrogenation

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Journal of Energy Chemistry 2025年第1期100卷 779-791页

作者： Hanzi Liu Ling Cen Xinlin Xie Lei Liu Zhao Sun Zhiqiang Sun Hunan Engineering Research Center of Clean and Low-carbon Energy Technology School of Energy Science and EngineeringCentral South UniversityChangsha 410083HunanChina

The development of dual functional material for cyclic CO_(2)capture and hydrogenation is of great significance for converting diluted CO_(2)into valuable fuels,but suffers from kinetic limitation and deactivation of adsorbent and ***,we engineered a series of RuNa/γ-Al_(2)O_(3)materials,varying the size of ruthenium from single atoms to clusters/*** coordination environment and structure sensitivity of ruthenium were quantitatively investigated at atomic *** findings reveal that the reduced Ru nanoparticles,approximately 7.1 nm in diameter with a Ru-Ru coordination number of 5.9,exhibit high methane formation activity and selectivity at 340°*** Ru-Na interfacial sites facilitate CO_(2)migration through a deoxygenation pathway,involving carbonate dissociation,carbonyl formation,and ***-situ experiments and theoretical calculations show that stable carbonyl intermediates on metallic Ru nanoparticles facilitate heterolytic C–O scission and C–H bonding,significantly lowering the energy barrier for activating stored CO_(2).

关键词： CO_(2)capture Hydrogenation Ru-Na interface Dual functional material Reaction mechanism

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Droughts and windstorms due to climate change increase variability in species and trait composition of a subtropical monsoon evergreen broadleaf forest in China

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Forest Ecosystems 2025年第1期12卷 11-19页

作者： Wenjing Chen Lei Liu Daijun Liu Josep Penuelas Guoyi Zhou Zhen Yu Anchi Wu Zhurong Wu Langqin Hua School of Ecology and Applied Meteorology Nanjing University of Information Science&TechnologyNanjing210044China Department of Botany and Biodiversity Research University of ViennaRennweg 141030ViennaAustria CSIC Global Ecology Unit CREAF-CSIC-UAB08193BellaterraBarcelonaCataloniaSpain CREAF Cerdanyola del Valles08193BarcelonaCataloniaSpain Institute of Ecology School of Ecology and Applied MeteorologyNanjing University of Information Science&TechnologyNanjing210044China key laboratory of Ecosystem carbon Source and Sink of China Meteorological Administration(ECSS-CMA) Nanjing University of Information Science&TechnologyNanjing210044China Hubei key laboratory of Biologic Resources Protection and Utilization Hubei Minzu UniversityEnshi445000China

Background:Climate change is accelerating alterations in forest species and community composition worldwide,especially following extreme events like severe droughts and *** these effects on subtropical forests is crucial for conservation and forest management,but it remains unclear whether the impacts are stochastic or ***:We analyzed a unique dataset from a 1-ha permanent plot in a subtropical monsoon broadleaf evergreen forest in China,monitored over 26 years with six surveys from 1994 to *** forest has been free from anthropogenic disturbances for over 400 *** each survey,we measured all trees with a diameter at breast height(DBH)≥1 cm,and recorded 11 plant functional traits relating to photosynthesis,wood properties,water use,and nutrient *** this data,we calculated species and trait dispersion,assessing short-term(~5years)and long-term(26 years)trends in species and trait composition following severe droughts and windstorm ***:Severe droughts,and subsequent droughts,increased both species and trait dispersion,while species composition converged,and trait dispersion remained relatively stable throughout the recovery *** events led to increased species dispersion but decreased trait *** observed a clear directional shift in both species and trait composition under these climatic stressors,with a more pronounced increase in trait dispersion compared to species ***:In the short term(~5 years),severe droughts and windstorms increased species composition divergence,while trait composition responses *** 26 years,deterministic processes mainly drove community composition changes,especially for trait composition,although stochastic processes also played a *** findings suggest enhancing forest resilience to climatic stressors by protecting adaptive species or increasing species diversity in management practices.

关键词： Community dynamics Functional traits Community composition Deterministic processes Climate change

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The genetic basis and improvement of photosynthesis in tomato

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Horticultural plant Journal 2025年第1期11卷 69-84页

作者： Haiqiang Dong Fangman Li Xiaoxiao Xuan John Kojo Ahiakpa Jinbao Tao Xingyu Zhang Pingfei Ge Yaru Wang Wenxian Gai Yuyang Zhang National key laboratory for Germplasm Innovation and Utilization of Horticultural Crops Huazhong Agricultural UniversityWuhan 430070 China Hubei Hongshan laboratory Wuhan 430070China Shenzhen Institute of Nutrition and Health Huazhong Agricultural UniversityWuhan 430070China Shenzhen Branch Guangdong Laboratory for Lingnan Modern AgricultureGenome Analysis Laboratory of the Ministryof AgricultureAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen 518000China

Photosynthesis is one the most important chemical reaction in plants,and it is the ultimate energy source of any living *** light and dark reactions are two essential phases of *** reaction harvests light energy to synthesize ATP and NADPH through an electron transport chain,and as well as giving out O_(2);dark reaction fixes CO_(2) into six carbon sugars by utilizing NADPH and energy from ***,plants convert optical energy into chemical energy for maintaining growth and development through absorbing light ***,firstly,we highlighted the biological importance of photosynthesis,and hormones and metabolites,photosynthetic and regulating enzymes,and signaling components that collectively regulate photosynthesis in ***,we reviewed the advances in tomato photosynthesis,including two aspects of genetic basis and genetic *** genes regulating tomato photosynthesis are gradually uncovered,and the interaction network among those genes remains to be ***,the photosynthesis occurring in fruit of tomato and the relationship between photosynthesis in leaf and fruit were *** and fruits are photosynthate sources and sinks of tomato respectively,and interaction between photosynthesis in leaf and fruit ***,future perspectives that needs to be addressed on tomato photosynthesis were proposed.

关键词： Photosynthesis Tomato Genetics Improvement Leaf Fruit

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The third dimension of alpine plant leaf traits is related to cold-tolerance

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plant Diversity 2025年第1期47卷 159-165页

作者： Yuan Wang Ji Suonan Kun Liu Yanni Gao Sihao Zhu Qian Liu Ning Zhao State key laboratory of Herbage Improvement and Grassland Agro-ecosystems College of Pastoral Agriculture Science and TechnologyLanzhou UniversityLanzhouChina College of Life Sciences Qinghai Normal UniversityXiningChina College of Ecology Lanzhou UniversityLanzhouChina State Environmental Protection key laboratory of Regional Eco-process and Function Assessment Chinese Research Academy of Environmental SciencesBeijingChina State key laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijingChina

Alpine plants possess unique traits to adapt alpine *** leaf trait relationships of alpine plants can be captured by the two trait dimensions of organ size and resource economics is *** hypothesized that,beyond the trait dimensions of leaf size and resource economics,nonstructured carbohydrates(NSC)would reflect a dimension of cold-tolerance in alpine *** test this hypothesis,we measured 12 leaf traits critical to leaf construction and growth in 143 species across 7 sites ranging from alpine steppes to alpine meadows along an environmental gradient on the Tibetan ***,a cold resistance experiment was conducted at one of these sites to estimate the lethal temperature causing 50%frost damage(LT_(50))of 11 alpine *** majority of variations in 12 leaf traits of alpine plants were captured by three trait axes,in which leaf carbon(LCC)and NSC(including leaf starch;LSC and leaf soluble sugars;LSS)were clustered in a new dimension(PC3)beyond leaf size and structure,and resource *** LCC,LSC and LSS all showed negative correlations with mean annual temperature,a significant negative correlation was only found between LSS and LT_(50).It indicated that PC3 was able to reflect the cold-tolerance of alpine plants to some extent,in which LSS was the most critical *** storage and transformation of NSC under stressful conditions could reflect a dimension of long-term metabolic adaptation and cold-tolerance,which is an extension of the resource-utilization strategy beyond construction cost and growth.

关键词： Non-structured carbohydrates Resource economics Stress resistance Trait relationships The lethal temperature causing 50%frost damage(LT50)

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