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8篇 您的检索式:作者名="Xuli Zhou"
    题名 作者 年代 出处 被引量
1Climate and litter C/N ratio constrain soil organic carbon accumulation显示文摘Soil organic carbon(SOC) plays critical roles in stabilizing atmospheric CO2 concentration, but the mechanistic controls on the amount and distribution of SOC on global scales are not well understood. In turn, this has hampered the ability to model global C budgets and to find measures to mitigate climate change. Here, based on the data from a large field survey campaign with 2600 plots across China’s forest ecosystems and a global collection of published data from forested land, we find that a low litter carbon-to-nitrogen ratio(C/N) and high wetness index(P/PET, precipitation-to-potentialevapotranspiration ratio) are the two factors that promote SOC accumulation, with only minor contributions of litter quantity and soil texture. The field survey data demonstrated that high plant diversity decreased litter C/N and thus indirectly promoted SOC accumulation by increasing the litter quality. We conclude that any changes in plant-community composition, plant-species richness and environmental factors that can reduce the litter C/N ratio, or climatic changes that increase wetness index, may promote SOC accumulation. The study provides a guideline for modeling the carbon cycle of various ecosystem scales and formulates the principle for land-based actions for mitigating the rising atmospheric CO2 concentration.Guoyi Zhou Shan Xu Philippe Ciais Stefano Manzoni Jingyun Fang Guirui Yu Xuli Tang Ping Zhou Wantong Wang Junhua Yan Gengxu Wang Keping Ma Shenggong Li Sheng Du Shijie Han Youxin Ma Deqiang Zhang Juxiu Liu Shizhong Liu Guowei Chu Qianmei Zhang Yuelin Li Wenjuan Huang Hai Ren Xiankai Lu Xiuzhi Chen 2019National Science Review2019,6,4:21
2Poor outcomes of immunoglobulin D multiple myeloma patients in the era of novel agents:a single-center experience显示文摘Dear Editor, Multiple myeloma (MM) is a disease characterized by the clonal expansion of malignant plasma cells in the marrow, leading to anemia, hypercalcemia, bone lesion, and renal dysfunction [1]. Immunoglobulin D (IgD) myeloma is a rare subtype of MM, accounting for approximately 1% to 2% of all MM patients [2]. It occurs at a young age, often accom-panied with a high disease burden and short median sur-vival (18-21 months) [3, 4]. Several studies have suggested that in patients with IgD subtype, the outcomes of those who have had undergone autologous stem cell transplanta-tion (ASCT) were superior than those treated with chemo-therapy alone [5, 6]. However, these have been debatable as other reports have displayed opposite results [7, 8].Qian Zhao Feng Li Ping Song Xiaogang Zhou Zhiming An Jiangang Mei Jingjing Shao Hanqing Li Xuli Wang Xing Guo Yongping Zhai 2019Cancer Communications2019,39,1:3
3Hyper-Wiener index of unicyclic graphs 显示文摘XING Rundan ZHOU Bo QI Xuli 2011MATCH Commun Math Comput Chem2011,66,:1
4Soil - atmospheric exchange of CO2, CH4 and N2O in three subtropical forest ecosystems in southern China 显示文摘Xuli tang Shuguang liu Guoyi zhou 2006Global Change Biology2006,12,:1
5Programmable dual responsive system reconstructing nerve interaction with small-diameter tissue-engineered vascular grafts and inhibiting intimal hyperplasia in diabetes显示文摘Small-diameter tissue-engineered vascular grafts(sdTEVGs)with hyperglycemia resistance have not been constructed.The intimal hyperplasia caused by hyperglycemia remains problem to hinder the patency of sdTEVGs.Here,inspired by bionic regulation of nerve on vascular,we found the released neural exosomes could inhibit the abnormal phenotype transformation of vascular smooth muscle cells(VSMCs).The transformation was a prime culprit causing the intimal hyperplasia of sdTEVGs.To address this concern,sdTEVGs were modified with an on-demand programmable dual-responsive system of ultrathin hydrogels.An external primary Reactive Oxygen Species(ROS)-responsive Netrin-1 system was initially triggered by local inflammation to induce nerve remolding of the sdTEVGs overcoming the difficulty of nerve regeneration under hyperglycemia.Then,the internal secondary ATP-responsive DENND1A(guanine nucleotide exchange factor)system was turned on by the neurotransmitter ATP from the immigrated nerve fibers to stimulate effective release of neural exosomes.The results showed nerve fibers grow into the sdTEVGs in diabetic rats 30 days after transplantation.At day 90,the abnormal VSMCs phenotype was not detected in the sdTEVGs,which maintained long-time patency without intima hyperplasia.Our study provides new insights to construct vascular grafts resisting hyperglycemia damage.Yanzhao Li Yeqin Wang Fangchao Xue Xuli Feng Zhaojing Ba Junjie Chen Zhenhua Zhou Yanhong Wang Ge Guan Guanyuan Yang Ziwei Xi Hao Tian Yong Liu Ju Tan Gang Li Xiewan Chen Mingcan Yang Wen Chen Chuhong Zhu Wen Zeng 2022Bioactive Materials2022,7,1:0
6Analysis of Biological Activity and Immunogenicity of Extracellular Products from Streptococcus iniae显示文摘[Objectives] This study aimed to analyze the biological activity and immunogenicity of extracellular products from Streptococcus iniae. [Methods] S.iniae was incubated with brain heart infusion agar medium( BHIA + 4% calf serum) for 60 h. The bacterial liquid was rinsed with PBS,centrifuged,and filtered through microporous filtering film to collect extracellular products( ECPs). [Results]Extracellular proteinase( ECPase) of S. iniae exhibited amylase,protease,lecitinase,gelatinase,lipase activities and hemolytic activity but had no urease activity. EDTA,DTT and PMSF could reduce ECPase activity to 72. 4%,77. 6%and 72. 4%,respectively. Cu^(2+),Ca^(2+),K+and Mg^(2+)exhibited an inhibitory effect on ECPase activity,whereas Fe^(3+),Co^(2+)and Mn^(2+)could activate ECPase activity. ECPs had good heat stability and exhibited relatively high activities under alkaline conditions. The optimal temperature for ECPs was 55 ℃. Two-dimensional electrophoresis was performed to analyze the main protein of ECPs. The results indicated that there are 12 main bands of ECPs,and the molecular weights mainly ranged between 28-68 kD a. About 120 protein spots were detected,and the molecular weights mainly ranged between 26-95 kD a. The mouse anti-S. iniae was used for Western-blot analysis of ECPs,and the results showed that there were four proteins,with molecular weights of 26,37,95,and 97 kD a,respectively. The pathogenicity assay indicated that ECPs of S. iniae were highly pathogenic to tilapia. The mortality rate of tilapia was enhanced as the concentration of ECPs increased. [Conclusions] This study provided a certain theoretical basis for revealing the pathogenic mechanism of Streptococcus iniae.Danling GUO Shihui ZHOU Siyao ZHENG Dawei SONG Xuli ZHANG Huanying PANG Peiwen WU Jichang JIAN Yang HUANG 2018Agricultural Biotechnology2018,7,4:0
7Self-gating enhanced carrier transfer in semiconductor electrocatalyst verified in microdevice显示文摘Semiconductor electrocatalysis with weak conductivity can accumulate extremely high carriers at semiconductor-electrolyte interface by self-gating effect,which strongly promotes electrocatalytic efficiency.The correlation between semiconductor carrier mobility and electrocatalysis performance is still unclear.Herein atomic-thin transition metal dichalcogenides based composites have been developed for hydrogen evolution reaction(HER)performed with on-chip microdevices.Electrical and electrochemical measurement of individual flack verified the key role of high carrier mobility for enhanced HER activity.Carrier mobility regulation further demonstrated its high dependence with HER performance under self-gating.Our study provides new insight into the carrier mobility of the semiconductor in the electrocatalysis,paving the way for designing high-performance semiconductor catalysts.Haiyan Xiang Yueshao Zheng Yang Chen Yanting Xu Travis Shihao Hu Yexin Feng Yu Zhou Song Liu Xuli Chen 2022Chinese Chemical Letters2022,33,6:0
8Changes in carbon storages of Fagus forest ecosystems along an elevational gradient on Mt. Fanjingshan in Southwest China显示文摘森林生态系统碳库通常包括植被、土壤、凋落物与木质残体等几个组分。本研究旨在探讨中国一种重要的森林生态系统—水青冈林(Fagus L.)中这些碳库的沿海拔梯度格局变化及其驱动因子。在中国贵州省梵净山,沿海拔梯度(1095–1930 m)调查了9个水青冈林各碳库的碳储量。采用方差分解探讨了林龄、气候及其他因子对碳储量的影响,同时对梵净山与贵州和全球其他地区水青冈林的碳储量进行了比较。梵净山水青冈林生态系统碳储量在190.5–504.3 Mg C ha^(–1)之间,其主要组分包括植被碳库(33.7–73.9%)和土壤碳库(23.9–65.5%),而木质残体(0.05–3.1%)和凋落物(0.2–0.7%)对该生态系统碳储量的贡献不超过4%。随海拔升高,生态系统碳储量呈增加趋势,其中植被与木质残体碳库增加,而凋落物与土壤碳库无明显的变化趋势。对梵净山水青冈林,气候与林龄是其各组分碳储量海拔格局形成的主要原因;而对于全球水青冈林,林龄是其碳储量变化的主导因子。相比全球其他地区的水青冈林,贵州水青冈林具有较高的植被碳储量积累速率,这可能与贵州较高的降水量有关。本研究结果有助于理解中国水青冈林碳收支及其在区域碳循环中的可能作用,同时强调了林龄与气候对碳积累的重要性。Qiong Cai Chengjun Ji Xuli Zhou Helge Bruelheide Wenjing Fang Tianli Zheng Jiangling Zhu Lei Shi Haibo Li Jianxiao Zhu Jingyun Fang 2020Journal of Plant Ecology2020,13,2:0
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