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| 1 | Overexpression of SGR Results in Oxidative Stress and Lesion-mimic Cell Death in Rice Seedlings显示文摘It is thought that the Stay Green Rice(SGR)gene is involved in the disaggregation of the light harvesting complex and in the subsequent breakdown of chlorophyll and apo-protein during senescence.In this study,we found that overexpression of SGR(Ov-SGR)resulted in the generation of singlet oxygen and other reactive oxygen species and produced a chlorophyll-dependent regional cell death phenotype on leaves of rice seedlings.Transcriptome analyses using Affymetrix Rice GeneChips revealed that Ov-SGR rice seedlings exhibited a number of signs of singlet oxygen response.The genes and their associated biochemical pathways identified provide an insight into how rice plants respond to singlet oxygen at the molecular and physiologic level. | Huawu Jiang Yaping Chen Meiru Li Xingian Xu Guojiang Wu | 2011 | Journal of Integrative Plant Biology2011，53，5： | 16 |
| 2 | Characteristics of U-pattern distribution of high-concentration ^(210)Pb in surface air at central Guizhou,China显示文摘A better understanding of the variation of 210Pb concentrations in the surface air is the key to trace lake sedimentation and catchment erosion, to establish and vali-date the global diffusion model of contaminants, and to as-sess the impact of natural radiation on the ecological system. Basing on the study progresses of the sedimentation, the at-mospheric model and the unique environmental background in the Yunnan-Guizhou Plateau, and starting from December 20, 2001, we made use of a 500 NE Type aerosol sampler to collect filter samples, once a week in the past consecutive two years, in the surface air at Mt. Guanfeng, Guiyang City, China. Synchronous detailed γ -energy spectrometric obser-vations of 210Pb concentrations at both Chinese and U.S. laboratories have shown that the average monthly 210Pb concentration displays a regular U-patterns distribution of annual variations, with high values appearing in winter and low values in late spring and summer. The average annual 210Pb concentrations are estimated to be 2.77±0.63 mBq/m3, about 4 times the average maximum concentrations reported from quite a number of monitoring stations throughout the world. The possible factors affecting the sources of 210Pb in the surface air in the central part of Guizhou Province are: Release of 222Rn from the U-Ra series enriched in the soils; chemical weathering of carbonate rocks; the exploitation, processing and utilization of coal and phosphorous resources. The principal factor controlling the high 210Pb concentrations in the surface air in the central Guizhou and their annual U-pattern distribution is the release of 222Rn. The average monthly 210Pb concentrations show a good negative power- function relationship with increasing precipitation and also show a good negative linear-function relationship with the rise of air temperature in month grouping. Group No.1 (June to November) reflects a relatively low release of 222Rn from soils in relatively high temperature seasons; Group No.2 (December to May) mirrors a relatively high release of 222Rn from soils in relatively low temperature seasons. The average monthly 210Pb concentrations simulated in terms of the pre-cipitation and air temperature are in good consistency with the measured values, revealing that the regular U-pattern distribution characteristics of 210Pb concentrations in the surface air in the central Guizhou are controlled predomi-nantly by regional precipitation and air temperature. Meanwhile, it is also indicated that the magnitude of varia-tion of air temperature and precipitation within the same year also constrains the ratio of high values over low values of average monthly 210Pb concentrations. On a month time scale, precipitation and air temperature are a main factor affecting the release of 222Rn from soils (rocks). In this aspect strong evidence has been obtained. | WAN Guojiang YANG Wei WANG Shilu WAN Enyuan WU Fengchang S.N.LEE WANG Changsheng HUANG Ronggui | 2005 | Chinese Science Bulletin2005，50，16： | 2 |
| 3 | Genome-wide analysis of the WRKY gene family in physic nut ( Jatropha curcas L.)显示文摘 | Wangdan Xiong Xueqin Xu Lin Zhang Pingzhi Wu Yaping Chen Meiru Li Huawu Jiang Guojiang Wu | 2013 | Gene2013，，2： | 2 |
| 4 | Sliding mode control of T–S fuzzy descriptor systems with time-delay显示文摘 | Chunsong Han Guojiang Zhang Ligang Wu Qingshuang Zeng | 2011 | Journal of the Franklin Institute2011，，4： | 1 |
| 5 | CFD simulation of the effect of upstream flow distribution on the light-off performance of a catalytic converter显示文摘 | Wu Guojiang Tan Song | | 0，，13： | 1 |
| 6 | Coupling between 210pbex and organic matter in sediments of a nutrient-enriched lake:an example from Lake Chenghai,China显示文摘 | Wan Guojiang Chert Jingan Wu Fengchang | 2005 | Chemical Geology2005，224，4： | 1 |
| 7 | Regeneration of N,P and Si near the sediment/water interlace of lakes from southwestern China plateau显示文摘 | Wu Fengchang Qing Hairuo Wan Guojiang | 2001 | War Res2001，35，5： | 1 |
| 8 | CFD Simulation of the Effect of Upstream Flow Distribution on the Light-off Performance of a Catalytic Con- verter显示文摘 | Wu Guojiang Tan Song | 2005 | Energy Conversion and Management2005，46，： | 1 |
| 9 | CFD simulation of the effect of upstream flow distribution on the light-off performance of a catalytic converter显示文摘 | Wu Guojiang Tan Song | 2005 | Energy Conversion and Management2005，46，1314： | 1 |
| 10 | Energy-rich Plant Research in China: Overview and Prospect显示文摘The energy crisis is an enormous challenge to the human race. Consequently, the technology development and utilization of bio- mass energy have become a new “hot spot” in the international arena. This article gives an overview on the current status of the research on energy plants and puts forward several suggestions on how to reasonably develop them in China. | WU Guojiang LIU Jie LOU Zhiping | 2006 | Bulletin of the Chinese Academy of Sciences2006，20，3： | 0 |
| 11 | Chemical constituents from leaves of Jatropha curcas显示文摘Objective:To investigate the chemical constituents from the leaves of Jatropha curcas and evaluate their inhibition on lipopolysaccharide(LPS)-activated BV-2 microglia cells.Methods:The n-BuOH extract of the leaves of J.curcas was isolated by macroporous adsorption resin,silica gel,ODS,column chromatography and semi-preparative HPLC.The structures of the compounds were identified by MS,NMR,ECD,and other spectroscopic methods.In addition,anti-neuroinflammatory effects of isolated compounds were evaluated by measuring the production of nitric oxide(NO)in overactivated BV-2 cells.Results:Seventeen compounds,including(7R,8S)-crataegifin A-4-O-β-D-glucopyranoside(1),(8R,8’R)-arctigenin(2),arctigenin-4’-O-β-D-glucopyranoside(3),(-)-syringaresinol(4),syringaresinol-4’-O-β-Dglucopyranoside(5),(-)-pinoresinol(6),pinoresinol-4’-O-β-D-glucopyranoside(7),buddlenol D(8),(2R,3R)-dihydroquercetin(9),(2S,3S)-epicatechin(10),(2R,3S)-catechin(11),isovitexin(12),naringenin-7-O-β-D-glucopyranoside(13),chamaejasmin(14),neochamaejasmin B(15),isoneochamaejasmin A(16),and tomentin-5-O-β-D-glucopyranoside(17)were isolated and identified.Compounds 2,4and 8 significantly inhibited the release of NO in BV-2 microglia activated by LPS,with IC50values of18.34,29.33 and 26.30μmol/L,respectively.Conclusion:Compound 1 is a novel compound,and compounds 2,3,8,14–17 are isolated from Jatropha genus for the first time.In addition,the lignans significantly inhibited NO release and the inhibitory activity was decreased after glycosylation. | Yingjie Wang Di Zhou Xiaolin Bai Qingqi Meng Haihui Xie Guojiang Wu Gang Chen Yue Hou Ning Li | 2023 | Chinese Herbal Medicines2023，15，3： | 0 |
| 12 | Knockdown of LjALD1, AGD2‐like defense response protein 1, influences plant growth and nodulation in Lotus japonicus显示文摘The discovery of the enzyme L,L‐diaminopimelate aminotransferase(LL‐DAP‐AT, EC 2.6.1.83) uncovered a unique step in the L‐lysine biosynthesis pathway in plants. In Arabidopsis thaliana, LL‐DAP‐AT has been shown to play a key role in plant‐pathogen interactions by regulation of the salicylic acid(SA) signaling pathway. Here, a full‐length cDNA of LL‐DAP‐AT named as LjALD1 from Lotus japonicus(Regel)Larsen was isolated. The deduced amino acid sequence shares 67% identity with the Arabidopsis aminotransferase AGD2‐LIKE DEFENSE RESPONSE PROTEIN1(AtALD1) and is predicted to contain the same key elements: a conserved aminotransferase domain and a pyridoxal‐5'‐phosphate cofactor binding site.Quantitative real‐time PCR analysis showed that LjALD1 was expressed in all L. japonicus tissues tested, being strongest in nodules. Expression was induced in roots that had been infected with the symbiotic rhizobium Mesorhizobium loti or treated with SA agonist benzo‐(1, 2, 3)‐thiadiazole‐7‐carbothioic Researchacid. LjALD1 Knockdown exhibited a lower SA content, an increased number of infection threads and nodules, and a slight reduction in nodule size. In addition, compared with wild‐type,root growth was increased and shoot growth was suppressed in LjALD1 RNAi plant lines. These results indicate that LjALD1 may play important roles in plant development and nodulation via SA signaling in L. japonicus. | Wei Chen Xueliu Li Lu Tian Pingzhi Wu Meiru Li Huawu Jiang Yaping Chen Guojiang Wu | 2014 | Journal of Integrative Plant Biology2014，56，11： | 0 |
| 13 | ANNUAL LAMINATIONS IN THE SEDIMENTS OF HONGFENG LAKE, CHINA显示文摘ANNUAL LAMINATIONS IN THE SEDIMENTS OF HONGFENG LAKE, CHINAANNUALLAMINATIONSINTHESEDIMENTSOFHONGFENGLAKE,CHINA￥WuFengchang;Wa... | Wu Fengchang Wan Guojiang(State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, the Chinese Academy of Sciences, Guiyang 550002, PRC) | 1996 | Chinese Geographical Science1996，6，4： | 0 |
| 14 | NUMERICAL SIMULATION OF EFFECTS OF WALL THICKNESS AND CELL DENSITY ON THE THREE-WAY CATALYTIC CONVERTER PERFORMANCE显示文摘The transient symmetric mathematical model is established, and the effects of the wall thickness and cell density on the performance of a three-way catalytic converter are studied using numerical modeling. The conclusions show that the light-off time and the pressure drop through a converter are decreased, and the conversion efficiency during the warm-up period keeps almost invariant with reduction of the wall thickness of substrates, and that the pressure drop through a converter and a conversion efficiency during the warm-up state increases, and the light-off time almost keeps invariant when increasing cell density of substrates. Therefore, future catalytic converters should develop in the direction of thin wall thickness and high cell density substrates simultaneously. | Wu Guojiang Tan Song Huang Zhen | 2005 | Chinese Journal of Mechanical Engineering2005，18，4： | 0 |
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