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| 1 | Nitric Oxide Reduces Hydrogen Peroxide Accumulation Involved in Water Stress-induced Subcellular Anti-oxidant Defense in Maize Plants显示文摘Nitric oxide (NO) is a bioactive molecule involved in many biological events, and has been reported as pro-oxidant as well as anti-oxidant in plants. In the present study, the sources of NO production under water stress, the role of NO in water stress-induced hydrogen peroxide (H2O2) accumulation and subcellular activities of anti-oxidant enzymes in leaves of maize (Zea mays L.) plants were investigated. Water stress induced defense increases in the generation of NO in maize mesphyll cells and the activity of nitric oxide synthase (NOS) in the cytosolic and microsomal fractions of maize leaves. Water stress-induced defense increases in the production of NO were blocked by pretreatments with inhibitors of NOS and nitrate reductase (NR), suggesting that NO is produced from NOS and NR in leaves of maize plants exposed to water stress. Water stress also induced increases in the activities of the chloroplastic and cytosolic anti-oxidant enzymes superoxide dismutase (SOD), ascorbate peroxidase (APX), and glutathione reductase (GR), and the increases in the activities of anti-oxidant enzymes were reduced by pretreatments with inhibitors of NOS and NR. Exogenous NO increases the activities of water stress-induced subcellular anti-oxidant enzymes, which decreases accumulation of H2O2. Our results suggest that NOS and NR are involved in water stress-induced NO production and NOS is the major source of NO. The potential ability of NO to scavenge H2O2 is, at least in part, due to the induction of a subcellular anti-oxidant defense. | Jianrong Sang Mingyi Jiang Fan Lin Shucheng Xu Aying Zhang Mingpu Tan | 2008 | Journal of Integrative Plant Biology2008，50，2： | 15 |
| 2 | Geomicrobial functional groups:A window on the interaction between life and environments显示文摘Microbes are well-known for their great diversity and abundance in modern natural environments.They also are believed to pro-vide critical links among higher organisms and their associated environments.However,the low diversity of morphological fea-tures and structures of ancient microbes preserved in sediments and rocks make them difficult to identify and classify.This diffi-culty greatly hinders the investigation of geomicrobes throughout Earth history.Thus,most previous paleontological studies have focused on faunal and floral fossils.Here,geomicrobial functional groups(GFGs),or a collection of microbes featured in specific ecological,physiological or biogeochemical functions,are suggested to provide a way to overcome the difficulties of ancient mi-crobe investigations.GFGs are known for their great diversity in ecological,physiological and biogeochemical functions.In addi-tion,GFGs may be preserved as the biogeochemical,mineralogical and sedimentological records in sediments and rocks.We reviewed the functions,origins and identification diagnostics of some important GFGs involved in the elemental cycles of carbon,sulfur,nitrogen and iron.GFGs were further discussed with respect to their significant impacts on paleoclimate,sulfur chemistry of ancient seawater,nutritional status of geological environments,and the deposition of Precambrian banded iron formations. | XIE ShuCheng YANG Huan LUO GenMing HUANG XianYu LIU Deng WANG YongBiao GONG YiMing XU Rana | 2012 | Chinese Science Bulletin2012，57，1： | 11 |
| 3 | Microbial and molecular fossils from the Permian Zoophycos in South China显示文摘The trace fossil Zoophycos was enriched in the lower part of the Guadalupian Maokou Formation of Permian in Laibin, Guangxi of South China, and characterized by observable lamellae within its spreiten. Associated with these lamellae are the prolific coccus- and spirillum-shaped microbe fossils. These microbes morphologically identified are 0.4―3.0 μm in diameter or length. Molecular fossils, including normal alkanes (dominated by C18, without an odd-over-even predominance), acyclic isoprenoids (such as pristane (Pr) and phytane (Ph)), extended tricyclic terpanes, pentacyclic triterpanes, steranes, al-kylcyclohexanes, dibenzothiophenes, benzonaphthothiophenes, benzobisbenzothiophenes, were in-strumentally identified in the wackestone characterized by the occurrence of abundant Zoophycos (composite ichnofabric indices are 4) and crowded microbial fossils. The value of the Pr/Ph ratio is less than 1, indicative of a dysoxic condition. The identification of abundant sulfur compounds (the thio-phene series) related to the contribution of reductive sulfur favors the occurrence of sulphate-reducing bacteria. The association of abundant microbial colonies with microbial molecular fossils within the spreiten suggests that trace fossils Zoophycos would be a multifunctional garden carefully constructed by the Zoophycos-producer, where different microbial colonies were orderly and carefully planted and cultured in different minor lamellae within spreiten. Hence, it is proposed that the Zoophycos-producer symbiosed with microbial colonies on the mutual basis of food supply and the redox conditions. | GONG YiMing XU Ran XIE ShuCheng HUANG XianYu HU Bin QI YongAn ZHANG GuoCheng | 2007 | Science China Earth Sciences2007，50，8： | 6 |
| 4 | Involvement of Protein Phosphorylation in Water Stress-induced Antioxidant Defense in Maize Leaves显示文摘Using pharmacological and biochemical approaches,the role of protein phosphorylation and the interrelationship between water stress-enhanced kinase activity,antioxidant enzyme activity,hydrogen peroxide(H2O2) accumulation and endogenous abscisic acid in maize(Zea mays L.) leaves were investigated.Water-stress upregulated the activities of total protein phosphorylation and Ca2+-dependent protein kinase,and the upregulation was blocked in abscisic acid-deficient vp5 mutant.Furthermore,pretreatments with a nicotinamide adenine dinucleotide phosphate oxidase inhibitor and a scavenger of H2O2 significantly reduced the increased activities of total protein kinase and Ca2+-dependent protein kinase in maize leaves exposed to water stress.Pretreatments with different protein kinase inhibitors also reduced the water stress-induced H2O2 production and the water stress-enhanced activities of antioxidant enzymes such as superoxide dismutase,catalase,ascorbate peroxidase and glutathione reductase.The data suggest that protein phosphorylation and H2O2 generation are required for water stress-induced antioxidant defense in maize leaves and that crosstalk between protein phosphorylation and H2O2 generation may occur. | Shucheng Xu Haidong Ding Fengxia Su Aying Zhang Mingyi Jiang | 2009 | Journal of Integrative Plant Biology2009，51，7： | 2 |
| 5 | Interleukin‐17 enhances the production of interferon‐γ and tumour necrosis factor‐α by bone marrow T lymphocytes from patients with lower risk myelodysplastic syndromes显示文摘 | Zheng Zhang Xiao Li Juan Guo Feng Xu Qi He Youshan Zhao Yujuan Yang Shucheng Gu Yan Zhang Lingyun Wu Chunkang Chang | 2013 | Eur J Haematol2013，，5： | 2 |
| 6 | Abscisic acid activates a Ca^2+-calmodulin-stimulated protein kinase involved in antioxidant defense in maize leaves显示文摘 | Shucheng Xu | 2010 | Acta Biochimica et Biophysica Sinica2010，42，9： | 2 |
| 7 | Heterogeneous Nature of Calcium Silicate Hydrate(C-S-H) Gel:A Molecular Dynamics Study显示文摘Structure and mechanical properties of Calcium silicate hydrate (C-S-H) at a molecular level act as 'DNA' of cement-based construction materials.In order to understand loading resistance capability of C-S-H gel,research on molecular dynamics (MD) was carried out to simulate the uniaxial tension test on C-S-H model along x,y,and z directions.Due to the structure and dynamic differences of the layered structure,the C-S-H model demonstrates heterogeneous mechanical behavior.On an XY plane,the cohesive force can reach 4 GPa,which is mainly provided by the Ca-O and Si-O ionic-covalent bonds.The good plasticity of calcium silicate sheet is attributed to the silicate branch structure formation and the recovery role of interlayer calcium atoms.However,in z direction,C-S-H layers connected by the unstable H-bonds network,have the weakest tensile strength 2.2 GPa.This results in the brittle failure mode in z direction.The relatively low tensile strength and poor plasticity in z direction provides molecular insights into the tensile weakness of cement materials at macro-level. | JIN Shucheng LI Jinhui XU Wenyuan DING Qingjun | 2020 | Journal of Wuhan University of Technology(Materials Science)2020，35，2： | 1 |
| 8 | On the geobiological evaluation of hydrocarbon source rocks显示文摘 | Xie Shucheng Hongfu Yin Xinong Xie Jianzhong Qin Chaoyong Hu Jiaxin Yan Junhua Huang Lian Zhou Xianghua Yang Yongbiao Wang Sihuang Xu | 2007 | Frontiers of Earth Science in China2007，，4： | 1 |
| 9 | Marine aquaculture mapping using GF-1 WFV satellite images and full resolution cascade convolutional neural network显示文摘Growing demand for seafood and reduced fishery harvests have raised intensive farming of marine aquaculture in coastal regions,which may cause severe coastal water problems without adequate environmental management.Effective mapping of mariculture areas is essential for the protection of coastal environments.However,due to the limited spatial coverage and complex structures,it is still challenging for traditional methods to accurately extract mariculture areas from medium spatial resolution(MSR)images.To solve this problem,we propose to use the full resolution cascade convolutional neural network(FRCNet),which maintains effective features over the whole training process,to identify mariculture areas from MSR images.Specifically,the FRCNet uses a sequential full resolution neural network as the first-level subnetwork,and gradually aggregates higher-level subnetworks in a cascade way.Meanwhile,we perform a repeated fusion strategy so that features can receive information from different subnetworks simultaneously,leading to rich and representative features.As a result,FRCNet can effectively recognize different kinds of mariculture areas from MSR images.Results show that FRCNet obtained better performance than other classical and recently proposed methods.Our developed methods can provide valuable datasets for large-scale and intelligent modeling of the marine aquaculture management and coastal zone planning. | Yongyong Fu Shucheng You Shujuan Zhang Kun Cao Jianhua Zhang Ping Wang Xu Bi Feng Gao Fangzhou Li | 2022 | International Journal of Digital Earth2022，15，1： | 1 |
| 10 | On the geobiological evaluation of hydrocarbon source rocks显示文摘 | Xie Shucheng Hongfu Yin Xinong Xie Jianzhong Qin Chaoyong Hu Jiaxin Yan Junhua Huang Lian Zhou Xianghua Yang Yongbiao Wang Sihuang Xu | | 0，2007，： | 1 |
| 11 | Thermal Hall effect in insulating quantum materials显示文摘The emerging field of quantum materials involves an exciting new class of materials in which charge,spin,orbital,and lattice degrees of freedom are intertwined,exhibiting a plethora of exotic physical properties.Quantum materials include,but are not limited to,superconductors,topological quantum matter,and systems with frustrated spins,which enable a wide range of potential applications in biomedicine,energy transport and conversion,quantum sensing,and quantum information processing。 | Shucheng Guo Youming Xu Ran Cheng Jianshi Zhou Xi Chen | 2022 | The Innovation2022，3，5： | 0 |
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