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1Proton accumulation accelerated by heavy chemical nitrogen fertilization and its long-term impact on acidifying rate in a typical arable soil in the Huang-Huai-Hai Plain显示文摘Cropland productivity has been significantly impacted by soil acidification resulted from nitrogen(N) fertilization, especially as a result of excess ammoniacal N input. With decades' intensive agricultural cultivation and heavy chemical N input in the Huang-Huai-Hai Plain, the impact extent of induced proton input on soil p H in the long term was not yet clear. In this study, acidification rates of different soil layers in the soil profile(0–120 cm) were calculated by p H buffer capacity(p HBC) and net input of protons due to chemical N incorporation. Topsoil(0–20 cm) p H changes of a long-term fertilization field(from 1989) were determined to validate the predicted values. The results showed that the acid and alkali buffer capacities varied significantly in the soil profile, averaged 692 and 39.8 mmolc kg–1 p H–1, respectively. A significant(P<0.05) correlation was found between p HBC and the content of calcium carbonate. Based on the commonly used application rate of urea(500 kg N ha–1 yr–1), the induced proton input in this region was predicted to be 16.1 kmol ha–1 yr–1, and nitrification and plant uptake of nitrate were the most important mechanisms for proton producing and consuming, respectively. The acidification rate of topsoil(0–20 cm) was estimated to be 0.01 unit p H yr–1 at the assumed N fertilization level. From 1989 to 2009, topsoil p H(0–20 cm) of the long-term fertilization field decreased from 8.65 to 8.50 for the PK(phosphorus, 150 kg P2O5 ha–1 yr–1; potassium, 300 kg K2 O ha–1 yr–1; without N fertilization), and 8.30 for NPK(nitrogen, 300 kg N ha–1 yr–1; phosphorus, 150 kg P2O5 ha–1 yr–1; potassium, 300 kg K2 O ha–1 yr–1), respectively. Therefore, the apparent soil acidification rate induced by N fertilization equaled to 0.01 unit p H yr–1, which can be a reference to the estimated result, considering the effect of atmospheric N deposition, crop biomass, field management and plant uptake of other nutrients and cations. As protons could be consumed by some field practices, such as stubble return and coupled water and nutrient management, soil p H would maintain relatively stable if proper management practices can be adopted in this region.HUANG P ing ZHANG Jia-bao XIN Xiu-li ZHU An-ning ZHANG Cong-zhi MA Dong-hao ZHU Qiang-gen YANG Shan WU Sheng-jun 2015Journal of Integrative Agriculture2015,14,1:18
2笋芽顶端分生组织在竹秆横切面形态形成中的作用与机制研究显示文摘竹秆的横切面主要由表皮、皮层、维管组织、基本组织及髓腔(早期为髓组织)组成。这些组织均由笋芽茎顶端分生组织分化发育而来,且其在生长发育过程中促使了竹秆横切面形态(本文特指:竹秆横切面外轮廓形状、围度及壁-腔结构)的形成。然而,人们对于这一生长发育过程的生物学机制知之甚少。本研究利用解剖学、数学模拟等方法,对 20 种具不同秆径竹种的笋芽顶端分生组织进行了分析。研究结果发现,笋芽顶端分生组织指状形态的维持是竹子产生圆柱形竹秆的基础;在顶端分生组织细胞数目增加的同时,线性增加原体细胞数目应是竹子在演化过程中产生大径竹秆且保持规则壁-腔结构的方式。进一步通过研究一个竹壁增厚且壁-腔架构紊乱的稳定变异体———实肚竹( Phyllostachys nidularia f. farcta)发现,其笋芽顶端分生组织细胞数目减少且原体/原套细胞数比值降低使其产生了高比例的壁组分组织(指基本分生组织与肋状分生组织)与低比例的髓组织。上述 2 种组织的比例失衡,使得实肚竹笋芽在后续发育中壁组分组织随机挤入到了髓组织中,最终形成了实肚竹异常的竹秆横切面形态(竹壁多样化增厚且壁-腔结构紊乱)。此外,相对较小的顶端分生组织,使得实肚竹笋芽产生了较少的内源激素,如其生长素含量仅约为其原种篌竹的 67. 5%,各细胞分裂素含量也显著低于篌竹笋芽。转录组分析进一步发现,在实肚竹笋芽中与激素及代谢相关的功能基因呈显著下调表达。这些生理与分子变化最终导致了实肚竹竹秆矮化、秆径减小且生物量降低。本论文的研究结果为研究竹秆横切面发育提供了一个重要的视角,同时也为实肚竹厚壁茎秆的形成提出了一个合理的机制。Wang Y Sun X Ding Y Fei Z Jiao C Fan M Yao B Xin P Chu J Wei Q 王雨珺 魏强 2019世界竹藤通讯2019,17,3:5
3Interaction Between Variations in Dopamine D2 and Serotonin 2A Receptor is Associated with Short-Term Response to Antipsychotics in Schizophrenia显示文摘Dear Editor,Schizophrenia is a chronic and debilitating brain disorder,which has a strong genetic component with heritability ranging from 66%to 85%[1,2].Currently,antipsychotic drugs remain the most effective treatment for the psychotic symptoms of schizophrenia[3].Because of the severe sideeffects of first-generation antipsychotics(FGAs),secondgeneration antipsychotics(SGAs)have become more widely used in the treatment of schizophrenia.Liansheng Zhao Huijuan Wang Yamin Zhang Jinxue Wei Peiyan Ni Hongyan Ren Gang Li Qiang Wang Gavin P Reynolds Weihua Yue Wei Deng Hao Yan Liwen Tan Qi Chen Guigang Yang Tianlan Lu Lifang Wang Fuquan Zhang Jianli Yang Keqing Li Luxian Lv Qingrong Tan Yinfei Li Hua Yu Hongyan Zhang Xin Ma Fude Yang Lingjiang Li Chuanyue Wang Huiyao Wang Xiaojing Li Wanjun Guo Xun Hu Yang Tian Xiaohong Ma Jeremy Coid Dai Zhang Chao Chen Tao Li Chinese Antipsychotics Pharmacogenomics Consortium 2019Neuroscience Bulletin2019,35,6:3
4Photometric measurements of spring aerosol optical properties in dust and non-dust periods in China 显示文摘DU W P XIN J Y WANG M X 2008Atmos Environ2008,42,34:1
5Optical and electrical properties of Zn1-xCdxO films grown on Si substrates by reactive radio-frequency magnetron sputtering显示文摘Sun C W Xin P Ma C Y 2006Appl Phys Lett2006,89,18:1
6Induction of cold hardiness by salt stress involves synthesis of cold and abscisic acid responsive proteins in Pmato显示文摘Ryu S tS Costa A Xin Z G Li P H 1995Plant Cell Physiol1995,36,:1
7Study of Microcellular Injection-molded Polypropylene/Waste Ground Rubber Tire Powder Blend显示文摘Xin Z X Zhang Z X Kaushik P 2010Materials and Design2010,31,1:1
8Thedirect release of nitric oxide by Gypenoside derived from theHerb Gynostemma pentaphyllum显示文摘Miles A Tanner Xin Bu J Alan Steimle P R Myers 1999Biology and Chemis-try1999,3,5:1
9Preparation of Mo2C/HZSM-5 and its catalytic performance for the conversion of n-butane into aromatics显示文摘YUAN S DERANOUE-ABD HAMIDB S B LI Y YING P XIN Q DEROUANE E G LI C 2002J Mol Catal A2002,184,12:1
10Combined local ischemic postconditioning and remote perconditioning recapitulate cardioprotective effects of local ischemic preconditioning显示文摘Xin P Zhu W Li J 2010Am J Physiol Heart Circ Physiol2010,298,6:1
11Proteomic analysis of strawberry leaves infected with Colletotrichum fragariae显示文摘Fang X P Chen W Y Xin Y Hengmu Z Chengqi Y Hong Y Hui L Wenfei X Shuzhen W Guizhen Z Hongbo L Liang J Huasheng M Songlin R 2012Journal of proteomics2012,75,:1
12Vanishing viscosity limit for the 3D magneto-hydrodynamic system with a slip boundary condition显示文摘Xiao Y L Xin Z P Wu J H 2009J Funct Anal2009,257,11:1
13Regioregular poly(3- pentylthiophene) : synthesis, self-assembly of nanowires, high-mobility field-effect transistors, and efficient photo- voltaic cells 显示文摘Wu P T Xin H Kim F S 2009Macromolecules2009,42,22:1
14Role of fat amount and type in ameliorating diet-induced obesity: insights at the level of hypothalamic arcuate nucleus leptin receptor, neuropeptide Y and proopiomelanocortin mRNA expression 显示文摘Huang X F Xin X McLennan P 2004Diabetes Obes Metab2004,6,1:1
15Durable antibacterial finish on cotton fab- ric by using ehitosan-based polymeric core-shell particles显示文摘YEW J XIN J H LI P 2006Journal of Applied Polymer Science2006,102,:1
16Phase transformation in the surface region of zirconia detected by UV raman spectroscopy显示文摘LI M FENG Z XIONG G XIONG G YING P XIN Q LI C 2001J Phys Chem B2001,105,34:1
17Down- regulated expression of AQP5 on lung in rat DIC model induced by LPS and its effect on the development of pulmonary edema显示文摘Jin Y Yu G Peng P Zhang Y Xin X 2013Pulm Pharmacol Ther2013,26,:1
18Extraction of manganese from elec- trolytic manganese residue by bioleaching显示文摘XIN B P CHEN B DUAN N 2011Bioresource Technology2011,,3:1
19Chemical profile,energy values,and protein molecular structure characteristics of biofuel/bio-oil co-products (carinata meal) in comparison with canola meal显示文摘XIN H YU P 2013J Agric Food Chem2013,61,16:1
20Discontinuous Galerkin Methods Applied to Shock and Blast Problems显示文摘Chevaugeon N Xin J Hu P Li X Cler D Flaherty J E and Shephard M S 2005Journal of Scientific Computing2005,2,:1
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