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| 1 | Ectopic expression of fungal EcGDH improves nitrogen assimilation and grain yield in rice显示文摘NADP(H)-dependent glutamate dehydrogenases(GDH) in lower organisms have stronger ammonium affinity than those in higher plants. Here we report that transgenic rice overexpressing the EcGDH from Eurotium cheralieri exhibited significantly enhanced aminating activities. Hydroponic and field tests showed that nitrogen assimilation efficiency and grain yields were markedly increased in these transgenic plants, especially at the low nitrogen conditions.These results suggest that EcGDH may have potential to be used to improve nitrogen assimilation and grain yield in rice. | Dongying Tang Yuchong Peng Jianzhong Lin Changqing Du Yuanzhu Yang Dan Wang Cong Liu Lu Yan Xiaoying Zhao Xia Li Liangbi Chen Xuanming Liu | 2018 | Journal of Integrative Plant Biology2018，60，2： | 4 |
| 2 | Is there a great unconformity between Xiamaling and Longshan formations in the North China Craton?显示文摘The existence of a 0.3 Ga'great unconformity'between the Mesoproterozoic'Undefined System'Xiamaling Formation and the'Neoproterozoic'Longshan Formation has long been controversial.In this study,stratigraphy,sedimentology,detrital zircon dating,lithium isotope,and major and trace elements were applied to systematically analyze their relationship.Results demonstrate that coarse to fine sandstone-mudstone normal cycles with different grades and thicknesses exist from the Xiamaling to the Longshan formations.Sedimentary succession formed from a restricted platform with lagoon-shallow marine shelf-tidal flat-beach and tidal shoal developing in ascending order.The pebbly sandstone at the bottom of the Long shan Formation does not have the properties of basal conglomerate with tectonic significance.The youngest detrital zircon is older than 1.6 Ga for the Long shan Formation and overlying Jing'eryu Formation sandstones.In addition,no(zircon)provenance has been found from the large igneous province of 1.32-1.2 Ga in Xiamaling Formation.Theδ^(7)Li isotope values exhibit a gradually increasing trend.The Li content and CIA(Chemical index of alteration)gradually decreases from the top of the Xiamaling Formation to the lower part of the Long shan Formation.Simultaneously,as K_(2)O/Al_(2)O_(3)and FeO/Fe_(2)O_(3)decreases,Na_(2)O/Al_(2)O_(3)increases,and Li/Al,V/Cr,and V/(V+Ni)fluctuates slightly.At the boundary,the Ce/Ce^(*)and Eu/Eu^(*)show positive and negative anomalies,respectively.Further,the Rb/Sr and Al/Si values decrease,and U/Th values increase.This indicates that the geochemistry of the weathering crust at the interface of the Xiamaling Formation-Long shan Formation is not characteristic.However,it indicates a weakening of continental weathering intensity from the bottom to the top of the interface.These results do not support the existence of a large unconformity between the Xiamaling and the Longshan formations.Therefore,it is suggested that the Long shan Formation-Jing'eryu Formation should be moved to the lower level in the stratigraphic chart,where it should form part of the Mesoproterozoic'Undefined System'along with the Xiamaling Formation.On this basis,the paleogeography of the Xiamaling Formation-Longshan Formation-Jing'eryu Formation sedimentary period in the Yanliao area of North China has been reclassified. | Hongwei KUANG Nan PENG Yongqing LIU Yuchong WANG Mingming CUI Xiaoshuai CHEN Dawei QIAO Keining QI | 2023 | Science China Earth Sciences2023，66，5： | 1 |
| 3 | The Firstly Discovered Cosmic Spherules in Carbonaceous Siltstone from the Taizi Formation of the Mesoproterozoic Shennongjia Group,Central China显示文摘Objective Spherical micro-particles are often preserved in Precambrian sedimentary rocks.Finnish and Chinese scholars have previously discovered carbonaceous,siliceous or ferruginous spherules of out-space origin in the 1.6 Ga and 1.4 Ga sequence,respectively.The presence of spherules can record possible cosmic impact events.Also,cosmic spherules provide important information on the evolution of planets from outer space.This work firstly discovered cosmic spherules in thin layer of carbonaceous siltstone from the Taizi Fm.(1.2-1.3 Ga)of the Shennongjia group in the Shennongjia area。 | KUANG Hongwei SONG Tianrui LIU Yongqing PENG Nan ZHU Zhicai FAN Zhengxiu WANG Yuchong XIA Xiaoxu SONG Huanxin TANG Yong | 2017 | Acta Geologica Sinica(English Edition)2017，91，3： | 1 |
| 4 | Supramolecular Polymerization Powered by Escherichia coli:Fabricating a Near-Infrared Photothermal Antibacterial Agent in Situ显示文摘An Escherichia coli reduction-powered supramolecular polymerization is reported,leading to the fabrication of a near-infrared(NIR)photothermal antibacterial agent in situ.To this end,a bifunctional monomer containing two viologen moieties was designed.WhenincubatingE.coli with thebifunctional monomer and cucurbit[8]uril,viologen moieties were reduced to viologen cation radicals by E.coli,and a supramolecular polymer with supramolecular dimers of viologen cation radicals integrated into the main chain was fabricated on the surface of E.coli. | Zihe Yin Yuchong Yang Jinpeng Yang Guobin Song Hao Hu Peng Zheng Jiang-Fei Xu | 2022 | CCS Chemistry2022，4，10： | 0 |
| 5 | A biomaterial-based therapy for lower limb ischemia using Sr/Si bioactive hydrogel that inhibits skeletal muscle necrosis and enhances angiogenesis显示文摘Muscle necrosis and angiogenesis are two major challenges in the treatment of lower-limb ischemic diseases.In this study,a triple-functional Sr/Si-containing bioceramic/alginate composite hydrogel with simultaneous bioactivity in enhancing angiogenesis,regulating inflammation,and inhibiting muscle necrosis was designed to treat lower-limb ischemic diseases.In particular,sodium alginate,calcium silicate and strontium carbonate were used to prepare injectable hydrogels,which was gelled within 10 min.More importantly,this composite hydrogel sustainedly releases bioactive Sr^(2+)and SiO_(3)^(2-) ions within 28 days.The biological activity of the bioactive ions released from the hydrogels was verified on HUVECs,SMCs,C2C12 and Raw 264.7 cells in vitro,and the therapeutic effect of the hydrogel was confirmed using C57BL/6 mouse model of femoral artery ligation in vivo.The results showed that the composite hydrogel stimulated angiogenesis,developed new collateral capillaries,and re-established the blood supply.In addition,the bioactive hydrogel directly promoted the expression of muscle-regulating factors(MyoG and MyoD)to protect skeletal muscle from necrosis,inhibited M1 polarization,and promoted M2 polarization of macrophages to reduce inflammation,thereby protecting skeletal muscle cells and indirectly promoting vascularization.Our results indicate that these bioceramic/alginate composite bioactive hydrogels are effective biomaterials for treating hindlimb ischemia and suggest that biomaterial-based approaches may have remarkable potential in treating ischemic diseases. | Ye Yuan Zhaowenbin Zhang Fandi Mo Chen Yang Yiren Jiao Enci Wang Yuchong Zhang Peng Lin Chengkai Hu Weiguo Fu Jiang Chang Lixin Wang | 2023 | Bioactive Materials2023，，8： | 0 |
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