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Linking leaf elemental traits to biomass across forest biomes in the Himalayas

Science China Earth Sciences 2024年第5期67卷 1518-1528页

作者： Nita DYOLA Eryuan liang Josep PEÑUELAS J.Julio caMARERO Shalik Ram SIGDEL Sugam ARYAL Wentao LIN Xiang LIU Yongwen LIU Xingliang XU Sergio ROSSI State Key Laboratory of Tibetan Plateau Earth System Environment and Resources(TPESER)Institute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Laboratoire sur lesécosystèmes terrestres boréaux Département des Sciences FondamentalesUniversitédu QuébecàChicoutimi555Boulevard de l′UniversitéChicoutimi(QC)G7H2B1Canada CSIC Global Ecology Unit CREAF-CSIC-UABBellaterraE-08193 CataloniaSpain CREAF Cerdanyola del VallèsE-08193 CataloniaSpain Instituto Pirenaico de Ecología(IPE-CSIC) Avenida Montañana 1005Zaragoza 50059Spain Friedrich-Alexander-Universität Erlangen-Nürnberg Institut für GeographieErlangen 91058Germany State Key Laboratory of Grassland Agro-Ecosystems College of EcologyLanzhou UniversityLanzhou 730000China Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China

Plants require a number of essential elements in different proportions for ensuring their growth and *** elemental concentrations in leaves reflect the functions and adaptations of plants under specific environmental ***,less is known about how the spectrum of leaf elements associated with resource acquisition,photosynthesis and growth regulates forest biomass along broad elevational *** examined the influence of leaf element distribution and diversity on forest biomass by analyzing ten elements(C,N,P,K,ca,Mg,Zn,Fe,Cu,and Mn)in tree communities situated every 100 meters along an extensive elevation gradient,ranging from the tropical forest(80 meters above sea level)to the alpine treeline(4200 meters above sea level)in the Kangchenjunga Landscape in eastern Nepal *** calculated communityweighted averages(reflecting dominant traits governing biomass,i.e.,mass-ratio effect)and functional divergence(reflecting increased trait variety,i.e.,complementarity effect)for leaf elements in a total of 1,859 trees representing 116 *** increasing mass-ratio effect and decreasing complementarity in leaf elements enhance forest biomass accumulation.A combination of elements together with elevation explains biomass(52.2%of the variance)better than individual elemental trait diversity(0.05%to 21%of the variance).Elevation modulates trait diversity among plant species in biomass *** promotes biomass at lower elevations,but reduces biomass at higher elevations,demonstrating an interaction between elevation and *** interaction between elevation and mass-ratio effect produces heterogeneous effects on biomass along the elevation *** research indicates that biomass accumulation can be disproportionately affected by elevation due to interactions among trait diversities across vegetation *** higher trait variation enhances the adaptation of species to environmental changes,it reduces

关键词： Ecosystem function Elevational gradient Functional diversity Functional traits Leaf elements Niche complementarity

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carrimycin ameliorates lipopolysaccharide and cecal ligation and puncture-induced sepsis in mice

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Chinese Journal of Natural Medicines 2024年第3期22卷 235-248页

作者： LAI Junzhong liang Jiadi CHEN Kunsen GUAN Biyun CHEN Zhirong CHEN Linqin FAN Jiqiang ZHANG Yong LI Qiumei SU Jingqian CHEN Qi LIN Jizhen The cancer Center Fujian Medical University Union HospitalFuzhou 350001China Fujian Key Laboratory of Innate Immune Biology Biomedical Research Center of South ChinaFujian Normal UniversityFuzhou 350117China The Department of Otolaryngology Head&Neck SurgeryUniversity of Minnesota Medical SchoolMinneapolisMN 55455USA

carrimycin(ca),sanctioned by China’s National Medical Products Administration(NMPA)in 2019 for treating acute bronchitis and sinusitis,has recently been observed to exhibit multifaceted biological activities,encompassing anti-inflammatory,antiviral,and anti-tumor *** these applications,its efficacy in sepsis treatment remains *** study introduces a novel function of ca,demonstrating its capacity to mitigate sepsis induced by lipopolysaccharide(LPS)and cecal ligation and puncture(CLP)in mice *** research employed in vitro assays,real-time quantitative polymerase chain reaction(RT-qPCR),and RNA-seq analysis to establish that ca significantly reduces the levels of pro-inflammatory cytokines,namely tumor necrosis factor-alpha(TNF-α),interleukin 1 beta(IL-1β),and interleukin 6(IL-6),in response to LPS ***,Western blotting and immunofluorescence assays revealed that ca impedes Nuclear Factor Kappa B(NF-κB)activation in LPS-stimulated RAW264.7 *** these findings,in vivo experiments demonstrated that ca effectively alleviates LPS-and CLP-triggered organ inflammation in C57BL/6 *** insights were gained through 16S sequencing,highlighting ca’s pivotal role in enhancing gut microbiota diversity and modulating metabolic pathways,particularly by augmenting the production of short-chain fatty acids in mice subjected to ***,a comparative analysis revealed that ca’s anti-inflammatory efficacy surpasses that of equivalent doses of aspirin(ASP)and ***,these findings suggest that ca exhibits significant therapeutic potential in sepsis *** discovery provides a foundational theoretical basis for the clinical application of ca in sepsis management.

关键词： carrimycin Inflammation Lipopolysaccharide Cecal ligation and puncture Sepsis Gut microbiota

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Evaluation of flue gas desulfurization gypsum as a low-cost precipitant for phosphorus removal from anaerobic digestion effluent filtrate

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International Journal of Agricultural and Biological Engineering 2024年第4期17卷 198-206页

作者： Yaping Guo Adam Khalaf Wenzhuo Kong Hongzhen Ma Jiawei liang Dongxu Zhao Zhiguo Wang Yebo Li Fuqing Xu Technology Innovation Center for Land Engineering and Human Settlements Shaanxi Land Engineering Construction Group Co.Ltd and Xi’an Jiaotong UniversitySchool of Human Settlements and Civil EngineeringXi’an Jiaotong UniversityXi’an 710049China Department of Food Agriculturaland Biological Engineeringthe Ohio State UniversityColumbusOH 44691USA Shaanxi Environmental Survey and Assessment Center Xi’an 710054China

Land application of anaerobic digestion(AD)effluent as a fertilizer is desirable for nutrient recycling,but often supplies excess phosphorus(P),which contributes to surface water *** the P content in AD effluent filtrate using calcium(ca)treatment prior to land application is a potential strategy for improving effluent disposal and meeting the discharge *** study took flue gas desulphurization(FGD)gypsum,a by-product of coal-fired power plants,as a low-cost ca source,and combined with traditional phosphorus removal agents to achieve high phosphorus removal efficiency with less chemical *** the results showed,FGD gypsum dosages of 20 mmol/L ca(3.44 g/L)and 40 mmol/L ca(6.89 g/L)removed up to 97.1%of soluble P(initially 102.8 mg/L)within 60-90 *** FGD gypsum treatment with traditional chemical treatments using calcium hydroxide[ca(OH)2]or ferric chloride(FeCl3)could achieve>99%P removal with reduced chemical *** study demonstrated that FGD gypsum is an efficient calcium-based precipitant for phosphorus removal,offering a cost-effective and sustainable approach to enhance wastewater treatment practices and meet discharge standards in wastewater management.

关键词： flue gas desulfurization gypsum anaerobic digestion effluent precipitation phosphorus removal eutrophication

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Roles of Cu doping in YbZn_(2)Sb_(2) for thermoelectric performance enhancement

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Rare Metals 2024年第6期43卷 2869-2875页

作者： Xiong Zhang Hai-Hui Li Xiao-liang cao Bin Zhang Hong Wu Yu Zhang Guang Han Guo-Yu Wang Hao-Shuang Gu Xiao-Yuan Zhou College of Physics and Electronic Science Hubei Normal UniversityHuangshi 435002China Analytical and Testing Center Chongqing UniversityChongqing401331China School of Science Chongqing University of Posts and Telecommunications.Chongqing 400065 China College of Materials Science and Engineering Chongqing UniversityChongqing 400044China Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials-Hubei Key Laboratory of Ferro&Piezoelectric Materials and Devices Faculty of Physical and Electronic SciencesHubei UniversityWuhan 430062China College of Physics Chongqing UniversityChongqing 401331China

Recent research shows that increasing the carrier density after orbital alignment in AZn_(2)Sb_(2) (A=ca,Yb,Eu,Sr,Mg)Zintl compounds yields remarkable results with regard to enhanced thermoelectric ***,research on carrier density increase via doping in these compounds is *** this study,we introduced Cu into the Zn sites in YbZn_(2)Sb_(2) and examined the thermoelectric properties.

关键词： properties doping performance

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Long-term survival outcomes and immune checkpoint inhibitor retreatment in patients with advanced cervical cancer treated with camrelizumab plus apatinib in the phase II CLAP study

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cancer Communications 2024年第6期44卷 654-669页

作者： Chunyan Lan Huaiwu Lu Lin Zhou Kunlun Liao Junxiu Liu Zhiwen Xie Haixi liang Guorong Zou Ting Yang Qin Xu Xin Huang Department of Gynecologic Oncology Sun Yat-sen University Cancer CentreGuangzhouGuangdongP.R.China State Key Laboratory of Oncology in South China Collaborative Innovation Centre for Cancer MedicineGuangzhouGuangdongP.R.China Department of Gynecologic Oncology Sun Yat-sen Memorial HospitalGuangzhouGuangdongP.R.China Clinical Research Daytime Treatment Center Sun Yat-sen University Cancer CentreGuangzhouGuangdongP.R.China Department of Obstetrics and Gynecology The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhouGuangdongP.R.China cancer Institute of Panyu Panyu Central HospitalGuangzhouGuangdongP.R.China Medical Affairs Jiangsu Hengrui Pharmaceuticals Co.LtdShanghaiP.R.China Department of Gynecology Clinical Oncology School of Fujian Medical UniversityFujian Cancer HospitalFuzhouFujianP.R.China

Background:camrelizumab plus apatinib have demonstrated robust antitumor activity and safety in patients with advanced cervical cancer(CLAP study;NCT03816553).We herein present the updated long-term results of the CLAP study and explore potential biomarkers for *** outcomes of patients who underwent immune checkpoint inhibitor(ICI)retreatment were also ***:In this phase II trial,eligible patients received camrelizumab 200 mg intravenously every two weeks and apatinib 250 mg orally once daily in 4-week cycles for up to two *** was continued until disease progression,unacceptable toxicity,or withdrawal of ***:Between January 21 and August 1,2019,a total of 45 patients were *** were analyzed as of July 31,2023,representing>48 months since treatment initiation for all ***(20.0%)patients completed the 2-year *** median duration of response(DOR)was 16.6 months,and 45.0%of patients achieved a DOR of≥24 *** 12-month progression-free survival(PFS)rate was 40.7%(95%confidence interval[CI],25.2-55.6),with an 18-month PFS rate of 37.8%(95%CI,22.7-52.8).The median overall survival(OS)was 20.3 months(95%CI,9.3-36.9),and the 24-month OS rate was 47.8%(95%CI,31.7-62.3).Age>50 years,programmed death-ligand 1(PD-L1)combined positive score(CPS)≥1(versus[vs.]ca mutations were associated with improved PFS(hazard ratio[HR]camrelizumab plus apatinib has robust,sustained,and durable efficacy in patients with advanced cervical ca

关键词： Cemrelizumab apatinib programmed cell death-1(PD-1) programmed death-ligand 1(PD-L1) tumor mutational burden(TMB) PIK3ca advanced cervical cancer

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Unique genes carried by abundant species enhance CH_(4) emissions during the growing season at the Tibetan Plateau

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Soil Ecology Letters 2024年第2期6卷 83-95页

作者： Yue liang Liyuan He Jieying Wang Yanfang Liu Wenying Wang Chengjie Ren Jun Wang Yaoxin Guo Ninglian Wang Fazhu Zhao Shaanxi Key Laboratory of Earth Surface System and Environmental carrying capacity Northwest UniversityXi’an710127China College of Urban and Environmental Sciences Northwest UniversityXi’an710127China Department of Biology San Diego State UniversitySan DiegoCA92182USA Key Laboratory of Biodiversity Formation Mechanism and Comprehensive Utilization in Qinghai-Tibet Plateau School of Life SciencesQinghai Normal UniversityXining810008China College of Agronomy Northwest A&F UniversityYangling712100China The College of Life Sciences Northwest UniversityXi’an710072China carbon Neutrality College (Yulin) Northwest UniversityXi’an710127China

CH_(4) emission rates followed an increased pattern during the growing season at Tibetan Plateau.•Unique genes carried by abundant species were positively correlated with CH_(4) emission rates.•Climate factors influenced CH_(4) emission rates by regulating microbial community and their *** play pivotal roles in soil methane(CH_(4))emissions and their functional genes are origins of a key mechanism for soil ***,understanding of the roles of specific genes(e.g.,unique or shared genes carried by species)underlying CH_(4)-cycling remains ***,we measured CH_(4) emission rates and investigated variations in microbial community and the abundance of genes carried by species during the growing season in alpine meadow on the Tibetan *** discovered that CH_(4) emission rates increased from 394.4,745.9,and 1092.7µg CH4 m−2 h−1,in April,June,and August,respectively,and had a positive correlation with unique genes carried by abundant species during the growing ***,we found that unique genes carried by abundant species involved in methanogenesis processes have a higher abundance than methanotrophic *** analysis indicated that climate factors(i.e.,mean monthly temperature(MMT)and mean monthly precipitation(MMP))influenced microbial community and their functional genes,and therefore affected the CH_(4) emission ***,the present study provides a novel insight into the variation of soil CH4 emissions from a functional gene perspective,highlighting the important roles of unique genes carried by abundant species in CH4 emissions in the Tibetan Plateau under seasonal variation.

关键词： soil CH_(4) emissions unique genes abundant species CH_(4)-cycling growing season

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GbLMI1 over-expression improves cotton aboveground vegetative growth

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Journal of Integrative Agriculture 2024年第10期23卷 3457-3467页

作者： Zhili Chong Yunxiao Wei Kaili Li Muhammad Aneeq Ur Rahman Chengzhen liang Zhigang Meng Yuan Wang Sandui Guo liangrong He Rui Zhang College of Agronomy Tarim UniversityAlar 843300China Biotechnology Research Institute Chinese Academy of Agricultural SciencesBeijing 100081China

Leaves are the main organ for photosynthesis and organic synthesis in *** shape has important effects on photosynthetic efficiency and canopy formation,thereby affecting cotton *** studies have shown that LMI1(LATE MERISTEM IDENTITY1)is the main gene regulating leaf *** this study,the LMI1 gene was inserted into the 35S promoter expression vector,and cotton plants overexpressing LMI1(OE)were obtained through genetic *** analysis of the biological traits of the T_(1) and T_(2) populations showed that compared to the wild type(WT),OE plants had significantly larger leaves,thicker stems and significantly greater dry ***,plant sections of the main vein and petiole showed that the numbers of cells in those tissues of OE plants were significantly *** addition,RNA-seq analysis revealed the differential expression of genes related to gibberellin synthesis and NAC gene family(genes containing the NAC domain)between the OE and WT plants,suggesting that LMI1 is involved in secondary wall formation and cell proliferation,which promotes stem ***,Gene Ontology(GO)analysis revealed enrichment in the terms of calcium ion binding,and Kyoto Encyclopedia of Genes and Genomes(KEGG)analysis showed enrichment in the terms of fatty acid degradation,phosphatidylinositol signal transduction system,and c AMP(cyclic adenosine monophosphate)signal *** results suggested that LMI1 OE plants are responsive to gibberellin hormone signals,and have altered messenger signals(c AMP,ca^(2+))which amplify this function,to promote stronger aboveground vegetative *** study found the LMI1 greatly increased the vegetative growth in cotton,which is the basic requirement for higher yield.

关键词： LMI1 over-expressing cotton vegetative growth

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Overexpression of TRPV1 activates autophagy in human lens epithelial cells under hyperosmotic stress through ca^(2+)-dependent AMPK/mTOR pathway

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International Journal of Ophthalmology(English edition) 2024年第3期17卷 420-434页

作者： Liu-Hui Huang Jiao Lyu Sheng Chen Ting-Yi liang Yu-Qing Rao Ping Fei Jing Li Hai-Ying Jin Pei-Quan Zhao Department of Ophthalmology Shanghai Xinhua Hospital Affiliated with Shanghai Jiao Tong University School of MedicineShanghai 200092China Department of Ophthalmology Shanghai Tenth People’s Hospital Affiliated with Shanghai Tongji University School of MedicineShanghai 200072China Centre for Eye Research Australia Royal Victorian Eye and Ear HospitalEast MelbourneVictoria 3002Australia Ophthalmology Department of SurgeryUniversity of MelbourneEast MelbourneVictoria 3002Australia Shenzhen Eye Hospital Shenzhen Key Laboratory of OphthalmologyAffiliated Shenzhen Eye Hospital of Jinan UniversityShenzhen 518040Guangdong ProvinceChina Department of Ophthalmology Shanghai East HospitalSchool of MedicineTongji UniversityShanghai 200120China

●AIM:To explore whether autophagy functions as a cellular adaptation mechanism in lens epithelial cells(LECs)under hyperosmotic stress.●METHODS:LECs were treated with hyperosmotic stress at the concentration of 270,300,400,500,or 600 mOsm for 6,12,18,24h in *** chain reaction(PCR)was employed for the mRNA expression of autophagyrelated genes,while Western blotting detected the targeted protein *** transfection of stub-RFP-sens-GFPLC3 autophagy-related double fluorescence lentivirus was conducted to detect the level of autophagy *** electron microscopy was used to detect the existence of *** interfering RNA of autophagy-related gene(ATG)7,transient receptor potential vanilloid(TRPV)1 overexpression plasmid,related agonists and inhibitors were employed to their influence on autophagy related *** cytometry was employed to test the apoptosis and intracellular ca^(2+)*** membrane potential was measured by JC-1 *** cell counting kit-8 assay was used to calculate the cellular *** wound healing assay was used to evaluate the wound closure *** 6.0 software was utilized to evaluate the data.●RESULTS:The hyperosmotic stress activated autophagy in a pressure-and time-dependent manner in *** 1 protein expression and conversion of LC3B II to LC3B I increased,whereas sequestosome-1(SQSTM1)protein expression *** ca^(2+)influx was stimulated caused by hyperosmotic stress,levels of mammalian target of rapamycin(mTOR)phosphorylation decreased,and the level of AMP-activated protein kinase(AMPK)phosphorylation increased in the early *** on this evidence,autophagy activation through the ca^(2+)-dependent AMPK/mTOR pathway might represent an adaptation process in LECs under hyperosmotic *** stress decreased cellular viability and accelerated apoptosis in LECs and cellular migration *** of autophagy by ATG7 knockdown had sim

关键词： cataract posterior capsular opacification lens epithelial cell hyperosmotic stress autophagy apoptosis transient receptor potential vanilloid 1

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Girvanella fossils from the Phanerozoic:Distribution, evolution and controlling factors

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Journal of Palaeogeography 2024年第4期13卷 924-938页

作者： Hua-Shan Zhang Ming-Yue Dai Yong-An Qi Lan-Lan Han Zhong-Lei Yin Song-Hua Chen liang-Biao Lin Institute of Sedimentary Geology Chengdu University of Technology School of Resources and Environment Henan Polytechnic University

Girvanella is one of the common genera of cyanobacteria that plays a monumental role in the evolution of life on Earth and the formation of *** on a detailed search in the literature of Girvanella fossils,we have compiled a global database of Girvanella fossils and revealed the evolution of Girvanella fossils throughout the *** species,Girvanella kasakiensis,Girvanella problematica,Girvanella wetheredii,and Girvanella staminea,are recognized and *** data show that Girvanella fossils have well-defined temporal distribution during the Paleozoic Era,have a significant temporal gap in the Mesozoic Era,and have only been recorded sporadically in the Cenozoic *** were relatively abundant during the cambrian Epoch 2-Early Ordovician,Late Ordovician,Late Devonian-Mississippian,and tended to lesser degrees during the Silurian-Early Devonian,Lopingian Epoch-Middle Jurassic,and Cretaceous-Present ***,the evolution of the abundance and diversity of Girvanella fossils was fundamentally consistent and showed episodical declining during the *** further explore these relationships,we thoroughly compared them with environmental factors such as seawater carbonate saturation state,ca2+concentration,pH values,and atmospheric partial pressure of carbon dioxide （p CO2）.This study indicates that seawater carbonate saturation state and ca2+concentration are major controls on secular patterns of the abundance and diversity of Girvanella fossils,together with the secondary factors of pH values and p *** the long history of Girvanella fossils,their abundance and diversity offer the potential to assist the interpretation of the long-term evolution of marine and atmosphere components during the Phanerozoic.

关键词： Girvanella Temporal distribution Abundance Diversity Control factors

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Upregulation of α-ENaC induces pancreatic β-cell dysfunction,ER stress,and SIRT2 degradation

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Journal of Biomedical Research 2024年第3期38卷 241-255页

作者： Xue Zhang Dan Zhang Lei Huo Xin Zhou Jia Zhang Min Li Dongming Su Peng Sun Fang Chen Xiubin liang Department of Pathophysiology Nanjing Medical UniversityNanjingJiangsu 211166China Department of Pathology Nanjing Drum Tower Hospitalthe Affiliated Hospital of Nanjing University Medical SchoolNanjingJiangsu 210009China Key Laboratory of Human Functional Genomics of Jiangsu Province Department of Biochemistry and Molecular BiologyNanjing Medical UniversityNanjingJiangsu 211166China Department of Pathology Nanjing Medical UniversityNanjingJiangsu 211166China

Islet beta cells(β-cells)produce insulin in response to high blood glucose levels,which is essential for preserving glucose ***-gated ion channels inβ-cells,including Na+,K+,and ca2+channels,aid in the release of *** epithelial sodium channel alpha subunit(α-ENaC),a voltage-independent sodium ion channel,is also expressed in human pancreatic endocrine ***,there is no reported study on the function of ENaC in theβ-*** the current study,we found thatα-ENaC was expressed in human pancreatic glandule and pancreatic isletβ-*** the pancreas of db/db mice and high-fat diet-induced mice,and in mouse isletβ-cells(MIN6 cells)treated with palmitate,α-ENaC expression was ***α-ENaC was overexpressed in MIN6 cells,insulin content and glucose-induced insulin secretion were significantly *** the other hand,palmitate injured isletβ-cells and suppressed insulin synthesis and secretion,but increasedα-ENaC expression in MIN6 ***,α-ENaC knockout(Scnn1a−/−)in MIN6 cells attenuatedβ-cell disorder induced by ***,α-ENaC regulated the ubiquitylation and degradation of sirtuin 2 inβ-cells.α-ENaC also modulatedβ-cell function in correlation with the inositol-requiring enzyme 1 alpha/X-box binding protein 1(IRE1α/XBP1)and protein kinase RNA-like endoplasmic reticulum kinase/C/EBP homologous protein(PERK/CHOP)endoplasmic reticulum stress *** results suggest thatα-ENaC may play a novel role in insulin synthesis and secretion in theβ-cells,and the upregulation ofα-ENaC promotes isletβ-cell *** conclusion,α-ENaC may be a key regulator involved in isletβ-cell damage and a potential therapeutic target for type 2 diabetes mellitus.

关键词： α-ENaC pancreaticβ-cells type 2 diabetes mellitus endoplasmic reticulum stress sirtuin 2

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