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| 1 | Suppression of glutamate synthase genes significantly affects carbon and nitrogen metabolism in rice (Oryza sativa L.)显示文摘Rice (Oryza sativa) glutamate synthase (GOGAT,EC 1.4.1.14) enzymes have been proposed to have great potential for improving nitrogen use efficiency,but their functions in vivo and their effects on carbon and nitrogen metabolism have not been systematically explored.In this research,we analyzed transcriptional profiles of rice GOGAT genes using a genome-wide microarray database,and investigated the effects of suppression of glutamate synthase genes on carbon and nitrogen metabolism using GOGAT co-suppressed rice plants.Transcriptional profiles showed that rice GOGAT genes were expressed differently in various tissues and organs,which suggested that they have different roles in vivo.Compared with the wild-type,tiller number,total shoot dry weight,and yield of GOGAT co-suppressed plants were significantly decreased.Physiological and biochemical studies showed that the contents of nitrate,several kinds of free amino acids,chlorophyll,sugars,sugar phosphates,and pyridine nucleotides were significantly decreased in leaves of GOGAT co-suppressed plants,but the contents of free ammonium,2-oxoglutarate,and isocitrate in leaves were increased.We conclude that GOGATs play essential roles in carbon and nitrogen metabolism,and that they are indispensable for efficient nitrogen assimilation in rice. | LU YongEn LUO Feng YANG Meng LI XiangHua LIAN XingMing | 2011 | Science China(Life Sciences)2011,54,7: | 12 |
| 2 | A new finite element model in studying earthquake triggering and continuous evolution of stress field显示文摘In this paper, a new finite element model (FEM) in consideration of regional stress field and an earthquake triggering factor C are proposed for studying earthquake triggering and stress field evolution in an earthquake sequence. The factor C is defined as a ratio between the shear stress and the frictional strength on a slip surface, and it can be used to tell if earthquake is triggered or not. The new FEM and the factor C are used to study the aftershock triggering of the 1976 Tangshan earthquake sequence. The results indicate that the effects of the stress field and the heterogeneity of the Tangshan earthquake fault zone on the aftershock triggering are very important. The aftershocks fallen in the earthquake triggering regions predicted by the new FEM are more than those fallen in the regions of ΔCFS≥ 0 predicted by seismic dislocation theory. | HU CaiBo ZHOU YiJie CAI YongEn | 2009 | Science China Earth Sciences2009,52,7: | 5 |
| 3 | Chemical-induced autoexcision of selectable markers in elite tomato plants transformed with a gene conferring resistance to lepidopteran insects显示文摘 | Yuyang Zhang Hanxia Li Bo Ouyang Yongen Lu Zhibiao Ye | 2006 | Biotechnology Letters2006,,16: | 1 |
| 4 | Identification and distribution of S haplotypes in Brassica vegetables from China显示文摘 | Taotao Wang Hanxia Li Yongen Lu Junhong Zhang Zhibiao Ye | 2007 | Scientia Horticulturae2007,,3: | 1 |
| 5 | The effect of fault-bend folding on seismic velocity in the marginal ridge of accretionary prisms显示文摘 | Yongen Cai Chi-yuen Wang Win-tsuang Hwang Guy R. Cochrane | 1995 | Pure and Applied Geophysics PAGEOPH (-)1995,,3: | 1 |
| 6 | Three-dimensional crustal structure in central Taiwan from gravity inversion with a parallel genetic algerithm显示文摘 | JIAN ZHANG CHI-YUEN WANG YAOLINSHI YONGEN CAI | 2004 | Geophysics2004,69,: | 1 |
| 7 | Fast Finite-Element Cal- culation of Gravity Anomaly in Complex Geolo-gical Regions 显示文摘 | Cai Yongen Wang Chiyun | 2005 | Geophysical Journal International2005,162,3: | 1 |
| 8 | Transcriptome response to nitrogen starvation in rice显示文摘 | Hongmei Cai Yongen Lu Weibo Xie Tong Zhu Xingming Lian | 2012 | Journal of Biosciences2012,,4: | 1 |
| 9 | Fracturing and Episodic Fluid Expulsion in Pressure Compartments显示文摘INTRODUCTIONTheconceptofpressurecompartmentwasdevelopedpri-marilybyD.E.PowleyandJ.S.Bradleyintheearly1970s,whohaveusedthiside... | Mei Lianfu Department of Petroleum Geology, China University of Geosciences, Wuhan 430074 Wang C.Y. Department of Geology and Geophysics, University of California, Berkeley 94720 Cai Yongen Department of Geology, Peking University, Beijing 100871 | 1998 | Journal of Earth Science1998,17,2: | 1 |
| 10 | Pharmacokinetic study of orally administered RU 486 in nonpregnant women显示文摘 | Changhai H Yongen S Zhihou Y | 1989 | Contraception1989,40,4: | 1 |
| 11 | Enhancement of NOx adsorbtion capacity and rate of char by microwave 显示文摘 | Chang Yu Cha Yongen Kong | 1995 | Carbon1995,33,8: | 1 |
| 12 | Direct estimation of rupture depths of earthquake faults from coseismic surface deformation显示文摘The rupture dimensions of earthquake faults are important parameters for characterizing earthquake ruptures and ground motions. Two key parameters to be determined are the rupture depth and dip angle of earthquake faults. Dislocation theory in an elastic half space indicates that if a seismic rupture directly runs up to the ground surface, there exist zero points of horizontal strain in the surface deformation, which correspond to the rupture depths, except for pure strike-slip faults. In this study, we use numerical simulations to investigate the possibility of inferring rupture depths from zero-strain points for cases of buried faults and heterogeneous media. The results show that the correspondence of zero-strain points to the rupture depths can be influenced by the heterogeneity of the underground media and the stress field. For buried faults, the correspondence relationship is approximately valid when the fault depth is <1 km. In addition, the range of earthquake fault dip angles can be estimated by horizontal displacements on the ground. We also study how to determine the rupture depths of faults from InSAR data after large earthquakes, and successfully apply the method to the 2008 Wenchuan earthquake. The method proposed here, which determines the parameters of fault geometry according to surface deformation, is simple and easy to perform. With independent of aftershocks, it can provide valuable constraints to kinematic inversions. | FU Zhen HU CaiBo ZHANG HaiMing XU HuiHui CAI YongEn | 2014 | Science China Earth Sciences2014,57,8: | 1 |
| 13 | SlZF3 regulates tomato plant height by directly repressing SlGA20ox4 in the gibberellic acid biosynthesis pathway显示文摘Plant height is an important target trait for crop genetic improvement.Our previous work has identified a salt-tolerant C2H2 zinc finger,SlZF3,and its overexpression lines also showed a semi-dwarf phenotype,but themolecular mechanism remains to be elucidated.Here,we characterized the dwarf phenotype in detail.The dwarfism is caused by a decrease in stem internode cell elongation and deficiency of bioactive gibberellic acids(GAs),and can be rescued by exogenous GA3 treatment.Gene expression assays detected reduced expression of genes in the GA biosynthesis pathway of the overexpression lines,including SlGA20ox4.Several protein-DNA interaction methods confirmed that SlZF3 can directly bind to the SlGA20ox4 promoter and inhibit its expression,and the interaction can also occur for SlKS and SlKO.Overexpression of SlGA20ox4 in the SlZF3-overexpressing line can recover the dwarf phenotype.Therefore,SlZF3 regulates plant height by directly repressing genes in the tomato GA biosynthesis pathway. | Jinying Luo Yunfei Tang Zhuannan Chu Yuxin Peng Jiawei Chen Huiyang Yu Chunmei Shi Jahanzeb Jafar Rong Chen Yaping Tang Yongen Lu Zhibiao Ye Ying Li Bo Ouyang | 2023 | Horticulture Research2023,10,4: | 0 |
| 14 | Effect of Poisson’s ratio on stress state in the Wenchuan M_S8.0 earthquake fault显示文摘The Wenchuan MS8.0 earthquake occurred on the Longmenshan fault which inclines at a dip angle exceeding 60 degrees.Since most thrust earthquakes occur on faults with dip angles of about 30 degrees,it is enigmatic why the Wenchuan earthquake occurred on such a steep fault.In this study we use a simple finite element model to investigate how the stress state in the fault changes with the variation of Poisson’s ratio.The results show that,with the Poisson’s ratio in the fault increasing,the magnitudes of the principal stresses increase and the maximum shear stress decrease,and,especially,the angle between the maximum principal stress and the fault plane decreases,which will enhance the driving force to overcome the frictional resistance on the fault.The increase of Poisson’s ratio in the fault may be an important factor to affect the occurrence of the fault earthquakes with large angles between maximum principal stress and fault plane. | Zhoumin Xie Caibo Hu Yongen Cai Chi-yuen Wang | 2009 | Earthquake Science2009,22,6: | 0 |
| 15 | Mixing trait-based corn(Zea mays L.)cultivars increases yield through pollination synchronization and increased cross-fertilization显示文摘Abiotic stress such as high temperature at flowering is one of many conditions reducing yield of corn(Zea mays L.).Mixing corn cultivars with diverse functional traits increases within-crop diversity and provides a potential means of mitigating yield losses under stress conditions.We conducted a three-year field study to investigate the effects of cultivar mixtures on kernel setting rate,pollen sources,and yield.This study consisted of six treatments,including two high temperature-tolerant(HTT)monocrops of WK702 and DH701,two high temperature-sensitive(HTS)monocrops of DH605 and DH662,and two HTT–HTS mixtures of WK702-DH605 and DH701-DH662.The anthesis–silking interval(ASI)was 0.9–1.6 days shorter in mixtures than in monocrops.Kernel setting rate was increased in mixtures(86.4%–88.7%)compared with those in monocrops(74.7%–84.1%)as a result of synchrony and complementarity of pollination.Grain yields of the HTT–HTS mixtures increased by 13.3%–18.7%,equivalent to 1169 to1605 kg ha^(-1),in comparison with HTS corn monocrops.The results of SSR markers showed that crossfertilization percentage in corn cultivar mixtures ranged from 29.3%to 47.8%,partially explaining yield improvement.Land equivalent ratio(LER)was 1.12 for corn mixtures and the partial land equivalent ratio(e.g.,>0.5)showed the complementary benefits in corn mixtures.The results indicated that mixing corn cultivars with diverse flowering and drought-tolerance traits increased yields via pollination synchrony. | Hongping Li Kui Liu Zhibin Li Moubiao Zhang Yongen Zhang Shuyan Li Xiuling Wang Jinlong Zhou Yali Zhao Tianxue Liu Chaohai Li | 2023 | The Crop Journal2023,11,1: | 0 |
| 16 | Factors that affect coseismic folds in an overburden layer显示文摘盲目的戳差错导致的 Coseismic 褶层在许多地震地区被观察了,并且他们从地质学家和地球物理学者收到了普遍注意。众多的研究关于褶层 kinematics 被进行了;然而,很少学习了褶层动力学份量上。在这份报纸,我们与一个戳差错地区和构造压力负担建立一个概念的模型学习用有限元素方法影响 coseismic 褶层和他们的形成机制的因素。数字结果证明差错剧降角度是控制合拢的一个关键因素。剧降角度越大,越 steeper 褶层斜坡。第二个很重要的因素是 overburden 厚度。overburden 越厚,越多渐渐褶层。在这种情况中,褶层是困难的在领域调查识别。因此,如果褶层能容易与肉眼被识别, overburden 是多半浅的。最不重要的因素是 overburden 的机械参数。overburden 的幼仔模量越大,褶层的排水量和褶层越 smaller 倾斜。在差错地区附近的 overburden 的强壮的水平压缩和垂直扩展是形成 coseismic 褶层的主要机制。 | Shaogang ZENG Yongen CAI | 2018 | Frontiers of Earth Science2018,12,1: | 0 |
| 17 | Effects of tectonic stress field and Poisson's ratio on stress state within the San Andreas Fault zone显示文摘We used a mechanics conceptual model to provide another perspective to understand the mechanical environment of the San Andreas Fault(SAF),and a possible mechanism that the principal stress state in the SAF is not only affected by remote tectonic stress but also by Poisson’s ratio.For a strike-slip fault like the SAF,we found that in the fault zone with Poisson’s ratio of[0.25,effective friction coefficient and the stress ratio(minimum principal stress/maximum principal stress)are less than 0.1and 0.8–1.0,respectively,corresponding to remote tectonic stress ratio of 0.36–1.0,and that the higher the Poisson’s ratio,the greater the principal stress rotates.For hydrostatic pore pressure and a received tectonic stress ratio of 0.5around the SAF,the model predicts that the SAF has a very high Poisson’s ratio(*0.45),which accommodates extremely low effective friction coefficient(0.09)and large stress ratio(0.84)or smaller shear stress(17 MPa). | Zhoumin Xie Yongen Cai | 2014 | Chinese Science Bulletin2014,59,24: | 0 |
| 18 | Development of portable user-interactive holographic information collector for agricultural product markets显示文摘The efficient and accurate collection of agricultural product market information serves as the basis for the effective regulation of agricultural product markets.To achieve a comprehensive,accurate,and timely collection of agricultural product market information,this study puts forth a technique for collecting holographic information of agricultural product markets.A portable human-machine interaction device with an Advanced RISC(reduced instruction set computer)Machines(ARM)-based processor as the core is developed.Holographic information such as agricultural product market trading time,trading place,product name,price,and trading volume can be collected.Via embedded technology and component technology,innovative agricultural product market positioning,and matching,standardized collection,and data processing,and in combination with intelligent algorithms for analysis and early warning,a mobile application terminal for information collection is developed,namely,a holographic information collector for agricultural product markets(named Nongxincai).By using a layered structure,the hardware integrates microprocessor,storage,power,application and communication interface,and human-machine interaction modules.The device has the advantages of miniaturization,the whole-machine power consumption of less than 0.5 W,and continuous operating time of at least 10 h.A supporting software system for Nongxincai has also been developed,in which Microsoft Windows Mobile 6.5 is employed as the operating system,and the CPU frequency is up to 600 MHz.This configuration fully meets the computing requirements of map processing and large-volume data processing and has high compatibility.Nongxincai has been popularized and applied in 12 provinces/municipalities in China.It has played an important role in the monitoring and early warning of different varieties of agricultural products and target prices of soybean and cotton. | Shiwei Xu Denghua Li Yongen Zhang Wei Chen Jiayu Zhuang Jiajia Liu Shengwei Wang | 2020 | International Journal of Agricultural and Biological Engineering2020,13,3: | 0 |
| 19 | Interactions between ShPP2-1, an F-box family gene, and ACR11A regulate cold toleranee of tomato显示文摘There is a critical need to identify germplasm resources and genes that promote cold tolerance of tomato because global tomato production is threatened by cold stress.We found that the expression of an F-box gene family member named ShPP2-1 from Solanum habrochaites is cold inducible and studied its contribution to cold tolerance.Overexpression of ShPP2-1 in cultivated tomato(AC)reduced cold tolerance by intensifying damage to cell membranes.To explore the underlying molecular mechanism,we conducted a yeast two-hybrid library screen and found that a protein containing ACT domain repeats named ACR11A interacts with PP2-1.Overexpression of SIACR11A in AC enhanced the cold tolerance of seedlings and germinating seeds.Cold tolerance decreased in tomato plants that overexpressed both of these genes.Additionally,we performed seed germination experiments in the cold with 177 tomato accessions and identified two alleles of SlACR11A that differ in one single-nucleotide polymorphism.We found that one of these alleles,SlACR11A G,is significantly enriched in cold-tolerant tomato plants.Taken together,our fi ndings indicate that the combination of low expression levels of PP2-1 and high expression levels of ACR11A can promote cold tolerance.These genes may therefore serve as direct targets for both genetic engineering and improvement projects that aim to enhance the cold tolerance of tomato. | Jianwen Song Lele Shang Shiwei Chen Yongen Lu Yuyang Zhang Bo Ouyang Zhibiao Ye Junhong Zhang | 2021 | Horticulture Research2021,8,1: | 0 |
| 20 | SlBBX20 interacts with the COP9 signalosome subunit SlCSN5-2 to regulate anthocyanin biosynthesis by activating SlDFR expression in tomato显示文摘Anthocyanins play vital roles in plant stress tolerance and growth regulation.Previously,we reported that the photomorphogenesis-related transcription factor SlBBX20 regulates anthocyanin accumulation in tomato.However,the underlying mechanism remains unclear.Here,we showed that SlBBX20 promotes anthocyanin biosynthesis by binding the promoter of the anthocyanin biosynthesis gene SlDFR,suggesting that SlBBX20 directly activates anthocyanin biosynthesis genes.Furthermore,we found by yeast two-hybrid screening that SlBBX20 interacts with the COP9 signalosome subunit SlCSN5-2,and the interaction was confirmed by bimolecular fluorescence complementation and coimmunoprecipitation assays.SlCSN5 gene silencing led to anthocyanin hyperaccumulation in the transgenic tomato calli and shoots,and SlCSN5-2 overexpression decreased anthocyanin accumulation,suggesting thSlCSN5-2 enhanced the ubiquitination of SlBBX20 and promoted the degradation of SlBBX20 in vivo.Consistently,silencing the SlCSN5-2 homolog in tobacco significantly increased the accumulation of the SlBBX20 protein.Since SlBBX20 is a vital regulator of photomorphogenesis,the SlBBX20-SlCSN5-2 module may represent a novel regulatory pathway in light-induced anthocyanin biosynthesis. | Dan Luo Cheng Xiong Aihua Lin Chunli Zhang Wenhui Sun Junhong Zhang Changxian Yang Yongen Lu Hanxia Li Zhibiao Ye Ping He Taotao Wang | 2021 | Horticulture Research2021,8,1: | 0 |