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Arbuscular mycorrhizal fungi promote functional gene regulation of phosphorus cycling in rhizosphere microorganisms of Iris tectorum under Cr stress

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Journal of Environmental Sciences 2025年第5期151卷 187-199页

作者： Sixi zhu Huan Mao Suxia Sun Xiuqin Yang Wei Zhao Luying Sheng Zhongbing Chen College of Eco-environment Engineering Guizhou Minzu UniversityThe Karst Environmental Geological Hazard Prevention of Key Laboratory of State Ethnic Affairs CommissionGuiyang 550025China Department of Applied Ecology Faculty of Environmental SciencesCzech University of Life Sciences PragueKamycka 129Praha-Suchdol 16500Czech Republic

The mutualistic symbiotic system formed by clumping arbuscular mycorrhizal fungi(AMF)and plants can remediate heavy metal-contaminated ***,the specific mechanisms underlying the interaction between AMF and inter-root microbial communities,particularly their impact on organic phosphorus(P)cycling,remain *** study investigated the gene regulation processes involved in inter-root soil phosphorus cycling in wetland plants,specifically Iris tectorum,following inoculation with AMF under varying concentrations of chromium(Cr)*** macro-genome sequencing,we analyzed the composition and structure of the inter-root soil microbial community associated with Iris tectorum under greenhouse pot *** results demonstrated significant changes in the diversity and composition of the inter-root soil microbial community following AMF inoculation,with Proteobacteria,Actinobacteria,Chloroflexi,Acidobacteria,and Bacteroidetes being the dominant *** Cr stress,species and gene co-occurrence network analysis revealed that AMF promoted the transformation process of organic phosphorus mineralization and facilitated inorganic phosphorus ***,network analysis of functional genes indicated strong aggregation of(pstS,pstA,pstC,***,phoR,pp-gppA)genes,which collectively enhanced phosphorus uptake by *** findings shed light on the inter-root soil phosphorus cycling process during the co-remediation of Cr-contaminated soil by AMF-Iris tectorum symbiosis,providing valuable theoretical support for the application of AMF-wetland plant symbiosis systems to remediate heavy metal-contaminated soil.

关键词： Metagenome Arbuscular mycorrhizal fungi Phosphorus Iris tectorum Cr

Mechanistic insight on nanomaterial-induced reactive oxygen species formation

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Journal of Environmental Sciences 2025年第5期151卷 200-210页

作者： Jianzhong Cao Qingchun Wu Xuting Liu Xiangyu zhu Chunfeng Huang Xinyu Wang Yang Song State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China University of Chinese Academy of Sciences Beijing 100049China

Reactive oxygen species(ROS)are closely related to cell death,proliferation and ***,excessive ROS levels may exceed the cellular oxidative capacity and cause irreversible *** are often inadvertently exposed to nanomaterials(NMs).Therefore,elucidating the specific routes of ROS generation induced by NMs is crucial for comprehending the toxicity mechanisms of NMs and regulating their potential *** paper provides a comprehensive review of the toxicity mechanisms and applications of NMs from three perspectives:(1)Organelle *** the impact of NMmediated ROS onmitochondria,unravelingmechanisms at the organelle level.(2)NMs’*** the broad applications and biosafety considerations of Nanozymes,a unique class of NMs.(3)Cellular *** the toxic effects and mechanisms of NMs in cells at a holistic cellular *** on these perspectives,the paper scrutinizes the regulation of Fenton reactions by NMs in ***,it introduces diseases resulting fromNM-mediated ROS at the organism *** comprehensive review aims to provide valuable insights for studying NM-mediated mechanisms at both cellular and organism levels,offering considerations for the safe design of nanomaterials.

关键词： Nanomaterials Reactive oxygen species(ROS) Toxicity Mitochondria Oxidative stress

A cationic radical lanthanide organic tetrahedron with remarkable coordination enhanced radical stability

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Chinese Chemical Letters 2025年第2期36卷 568-573页

作者： Zhengzhong zhu Shaojun Hu Zhi Liu Lipeng Zhou Chongbin Tian Qingfu Sun State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences University of the Chinese Academy of Sciences

Rare–earth supramolecular compounds, such as lanthanide organic polyhedrons（LOPs）, are of particular interest due to their many possible applications in various fields. Here we report the first syntheses of Ln4(L·+)4–type(Ln, lanthanides; L·+, radical ligand) radical–bridged lanthanide organic tetrahedrons by self–assembly of face–capping triphenylamine（TPA）–cored radical ligand with different lanthanide *** coordination enhanced radical stability has been observed, with half–life times(t1/2) for L1·+,La4(L1·+)4, Eu4(L1·+)4, Gd4(L1·+)4, Tb4(L1·+)4and Lu4(L1·+)4estimated to be 53 min, 482 min, 624 min,1248 min, 822 min and 347 min, respectively. The TPA radical in Ln4(L1·+)4containing paramagnetic Ln ions（Ln = EuⅢ, GdⅢand TbⅢ） is observed to be more stable than that in Ln4(L1·+)4（Ln = LaⅢand LuⅢ）constructed by diamagnetic Ln ions. This difference in radical stability is possibly due to the magnetic interactions between paramagnetic LnⅢions and L1·+ligands, as confirmed by electron paramagnetic resonance（EPR） in La4（L）4(L = L1and L1·+) and Tb4（L）4(L = L1and L1·+), and magnetic susceptibility measurements in Tb·4（L）4(L = L1and L1·+). Our study reveals the coordination of radical ligands with lanthanide ions can improve the radical stability, which is crucial for their applications.

关键词： Enhanced stability Lanthanide organic polyhedrons Radical Self–assembly Supramolecular chemistry

Pneumonia caused by co-infection with Pneumocystis jirovecii and Trichosporon coremiiforme

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World Journal of Emergency Medicine 2025年第1期16卷 99-100页

作者： Gaofeng zhu Linqiang Huang Wenhong Zhong Hongke Zeng Department of Emergency Medicine Guangdong Provincial People’s Hospital(Guangdong Academy of Medical Sciences)Southern Medical UniversityGuangzhou 510080China Department of Critical Care Medicine Guangdong Provincial People’s Hospital(Guangdong Academy of Medical Sciences)Southern Medical UniversityGuangzhou 510080China

Fungal infections are relatively common among patients with systemic lupus erythematosus (SLE), and patients may be infected simultaneously or sequentially with multiple fungal species. Physicians need to select appropriate antifungal agents and therapeutic regimens based on the type and severity of the infection. Herein, we report a young SLE patient who developed concurrent pulmonary infection with Pneumocystis jirovecii and Trichosporon coremiiforme. The patient presented with a variety of imaging manifestations,with specific features evolving as the disease progressed.

关键词： infection Pneumocystis patients

A novel supramolecular assembly based on nor-seco-cucurbit[10]uril for spermine sensing and artificial light-harvesting

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Chinese Chemical Letters 2025年第1期36卷 262-266页

作者： Ran Cen Yan-Yan Tang Li-Xia Chen zhu Tao Xin Xiao National Key Laboratory of Green Pesticide State Key Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationKey Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou ProvinceGuizhou UniversityGuiyang 550025China

A supramolecular assembly composed of perylene diimide derivative(PDI-nm)and nor-secocucurbit[10]uril(ns-Q[10])was *** excellent host-guest interaction between PDI-nm and nsQ[10]prevented the aggregation-caused quenching(ACQ)effect of PDI-nm,resulting in a luminescent *** addition of spermine to the PDI-nm/ns-Q[10]assembly restored the ACQ of PDI-nm due to the competitive binding of spermine to ns-Q[10],which released *** assembly based on this principle showed ultra-high sensitivity for the detection of spermine with a detection limit as low as7.84×10^(-7)mol/L in aqueous solution and 3.69×10^(-7)mol/L in plasma ***,an artificial light-harvesting system based on this assembly was proposed,benefiting from its good luminescent *** red(Ni R)functioned as an acceptor loaded into assembly,and a highly efficient energy transfer process occurred from PDI-nm/ns-Q[10]to Ni R,with an efficiency up to 87%.

关键词： Nor-seco-cucurbituril Perylene diimide derivative Spermine Light-harvesting

Subduction thermal state, slab metamorphism, and seismicity in the Makran Subduction Zone

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Earth and Planetary Physics 2025年第02期 266-278页

作者： Haris Faheem YingFeng Ji WeiLing zhu Rui Qu Ye zhu Shoichi Yoshioka State Key Laboratory of Tibetan Plateau Earth System Environment and Resources (TPESER) Institute of Tibetan Plateau Research Chinese Academy of Sciences University of Chinese Academy of Sciences Research Center for Urban Safety and Security Kobe University Department of Planetology Graduate School of Science Kobe University

The dependence of the subduction regime on three-dimensional slab geometry poses a challenge for accurately estimating the evolving thermal structure of megathrusts globally. Although slab dips and ages have gained attention, the specific impacts of oblique subduction remain unmeasured. Here, we present an integrated thermal model that quantifies how slab morphology can shape the thermal state of megathrusts, such as those in the Makran Subduction Zone. The model considers both slab obliquity and depth variations along the trench. We find a considerable match between the slab petrological dehydration zone and the distribution of great crustal earthquakes. We suggest that the accumulation of fluids along megathrusts by slab metamorphism can foster more polarized conditions for decreasing plate coupling and increasing interplate ruptures. It is thus imperative to improve model representation and more realistically represent how drivers of slab geometry affect metamorphic transitions and the occurrence of earthquakes at megathrusts.

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健脾升清降浊方干预糖尿病肾病小鼠蛋白尿的作用及机制研究

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南京中医药大学学报 2025年第2期41卷 213-222页

作者：冯慧凌云夏子琪朱晓云朱鹏飞南京中医药大学中医学院江苏南京210023 南京中医药大学中西医结合学院江苏南京210023 中国中医科学院广安门医院北京100053 江苏省中医院内分泌科江苏南京210004

目的探讨健脾升清降浊方对糖尿病肾病(DKD)db/db小鼠的保护作用及可能的机制。方法32只8周龄雄性db/db小鼠随机分为模型组,西药组[达格列净(1.0 mg·kg^(-1)·d^(-1))],健脾升清降浊低、高剂量组(19.63、58.89 g·kg^(-1)·d^(-1)),每组... 详细信息

目的探讨健脾升清降浊方对糖尿病肾病(DKD)db/db小鼠的保护作用及可能的机制。方法32只8周龄雄性db/db小鼠随机分为模型组,西药组[达格列净(1.0 mg·kg^(-1)·d^(-1))],健脾升清降浊低、高剂量组(19.63、58.89 g·kg^(-1)·d^(-1)),每组8只。8只db/m小鼠作为正常组。每日灌胃给药1次,连续10周。观察小鼠一般生存状况,动态监测小鼠体质量、空腹血糖(FBG)、24 h尿量;检测尿肌酐(Ucr)、尿微量白蛋白,计算尿微量白蛋白排泄(UAE)及蛋白肌酐比(ACR)。末次干预结束后,禁食12 h,麻醉取血,分离肾脏组织;检测血肌酐(Scr)、尿素氮(BUN)、甘油三脂(TG)、总胆固醇(TC)、低密度脂蛋白(LDL-C)、高密度脂蛋白(HDL-C)水平;HE、Masson染色观察肾脏组织病理变化;油红O染色观察肾脏内脂滴沉积情况,采用Image J进行定量分析;ELISA检测肾组织TNF-α、IL-1β水平;Western blot检测肾组织SIRT1、SREBP-1、PPAR-α蛋白表达。结果与正常组小鼠相比,模型组小鼠体质量、FBG、Scr、TG、TC、HDL-C、LDL-C、尿量、UAE及ACR显著升高(P<0.05,P<0.01),肾小球体积明显增大,肾脏纤维化改变,肾脏脂滴沉积增多(P<0.01),TNF-α、IL-1β、SREBP-1表达增加(P<0.01),SIRT1、PPAR-α表达减少(P<0.01)。与模型组相比,干预第5、10周,西药组FBG水平显著降低(P<0.05,P<0.01);干预结束后,西药组与健脾升清降浊高剂量组Scr、UAE与ACR均显著降低(P<0.05,P<0.01),而健脾升清降浊高剂量组血清TG水平亦显著降低(P<0.01);西药组与健脾升清降浊高剂量组肾脏病理变化、脂质沉积改善(P<0.05,P<0.01),TNF-α、IL-1β水平降低(P<0.05,P<0.01),SIRT1、PPAR-α蛋白表达增加(P<0.05,P<0.01);健脾升清降浊高剂量组SREBP-1表达降低(P<0.01)。结论健脾升清降浊方能改善DKD蛋白尿、肾损伤、肾脏脂质沉积与炎症反应,其机制可能与激活SIRT1/SREBP-1/PPAR-α通路而调节脂稳态有关。

关键词：糖尿病肾病健脾升清降浊方异位脂质沉积脂稳态炎症反应

Direct seawater splitting for hydrogen production:Recent advances in materials synthesis and technological innovation

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Green Energy & Environment 2025年第1期10卷 11-33页

作者： Yilin Zhao Zhipeng Yu Aimin Ge Lujia Liu Joaquim Luis Faria Guiyin Xu Meifang zhu State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Center for Advanced Low-dimension MaterialsCollege of Materials Science and EngineeringDonghua UniversityShanghai201620China International Iberian Nanotechnology Laboratory(INL) Avenida Mestre Jose VeigaBraga4715-330Portugal The MacDiarmid Institute for Advanced Materials and Nanotechnology School of Chemical and Physical SciencesVictoria University of WellingtonWellington6012New Zealand LSRE-LCM-Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials Faculty of EngineeringUniversity of PortoRua Dr.Roberto Frias s/nPorto4200-465Portugal ALiCE-Associate Laboratory in Chemical Engineering Faculty of EngineeringUniversity of PortoRua Dr.Roberto Frias s/nPorto4200-465Portugal

Direct seawater splitting has emerged as a popular and promising research direction for synthesising clean,green,non-polluting,and sustainable hydrogen energy without depending on high-purity water in the face of the world’s shortage of fossil ***,efficient seawater splitting is hindered by slow kinetics caused by the ultra-low conductivity and the presence of bacteria,microorganisms,and stray ions in ***,producing hydrogen on an industrial scale is challenging due to the high production *** present review addresses these challenges from the catalyst point of view,namely,that designing catalysts with high catalytic activity and stability can directly affect the rate and effect of seawater *** the ion transfer perspective,designing membranes can block harmful ions,improving the stability of seawater *** the energy point of view,mixed seawater systems and self-powered systems also provide new and low-energy research systems for seawater ***,ideas and directions for further research on direct seawater splitting in the future are pointed out,with the aim of achieving low-cost and high-efficiency hydrogen production.

关键词： Seawater splitting Catalyst Membranes Mixed seawater systems Self-powered systems

Environmental colloid behaviors of humic acid-Cadmium nanoparticles in aquatic environments

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Journal of Environmental Sciences 2025年第3期149卷 663-675页

作者： Ruyi Zheng Jian zhu Peng Liao Dengjun Wang PanWu Wenjian Mao Yuqin Zhang Weiwei Wang College of Resources and Environment Engineering Key Laboratory of Karst Georesources and EnvironmentMinistry of EducationGuizhou UniversityGuiyang 550025China Guizhou Karst Environmental Ecosystems Observation and Research Station Ministry of EducationGuizhou UniversityGuiyang 550025China State Key Laboratory of Environmental Geochemistry Institute of GeochemistryChinese Academy of ScienceGuiyang 550081China School of Fisheries Aquaculture and Aquatic SciencesAuburn UniversityAuburnAL 36849USA

Humic acid(HA),a principal constituent of natural organic matter(NOM),manifests ubiquitously across diverse ecosystems and can significantly influence the environmental behaviors of Cd(II)in aquatic *** studies on NOM-Cd(II)interactions have primarily focused on the immobilization of Cd(II)solids,but little is known about the colloidal stability of organically complexed Cd(II)particles in the *** this study,we investigated the formation of HA-Cd(II)colloids and quantified their aggregation,stability,and transport behaviors in a saturated porous media representative of typical subsurface *** from batch experiments indicated that the relative quantity of HA-Cd(II)colloids increased with increasing C/Cd molar ratio and that the carboxyl functional groups of HA dominated the stability of HA-Cd(II)*** results of correlation analysis between particle size,critical aggregation concentration(CCC),and zeta potential indicated that both Derjaguin-Landau-Verwey-Overbeek(DLVO)and non-DLVO interactions contributed to the enhanced colloidal stability of HA-Cd(II)*** results further confirmed that the stable HA-Cd(II)colloid can transport fast in a saturated media composed of clean ***,this study provides newknowledge of the colloidal behaviors of NOM-Cd(II)nanoparticles,which is important for better understanding the ultimate cycling of Cd(II)in aquatic systems.

关键词： HA-Cd(II)colloids Colloid formation Colloid aggregation Transport