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Variability in the composition and export of silica in the Huanghe River Basin

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Science China Earth Sciences 2015年第7期58卷 2078-2089页

作者： RAN XiangBin CHE Hong ZANG JiaYe yu yonggui LIU Sen ZHENG LiLi Research Center for Marine Ecology First Institute of OceanographyState Oceanic Administration Key Laboratory of Marine Chemistry Theory and Technology Ministry of Education Ocean University of China Key Laboratory of Marine Sedimentology and Environmental Geology The First Institute of OceanographyState Oceanic Administration College of Environmental and Civil Engineering Chengdu University of Technology

Concentrations of suspended particle material(SPM), dissolved silicate(DSi), biogenic silica(BSi), phytoliths(plant produced siliceous microscopic structures), and other parameters were analyzed to examine the influence of both natural processes and human activities on silica delivery to the estuary of the Huanghe River(Yellow River). Our results indicate that the concentrations of DSi in the river decreased significantly since 1986. Approximately 34% of dissolved silica was trapped in the basin between 1986 and 2010 due to a reduction of soil erosion. Phytoliths comprised 67.2%–96.3% of BSi, with the smoothing bar type being the dominant form. Concentrations of BSi are significantly higher in the Huanghe River compared to other major rivers throughout the world due to its high sediment yield. We also found that the ratios of BSi/(BSi+DSi) and BSi/SPM were approximately 0.5 and 0.003 at Lijin near the river mouth, indicating that BSi carried in suspension by the Huanghe River was an important component of the rivers silica load. Significant amounts of BSi were also composed of phytoliths in Bohai Sea sediments near the Huanghe River estuary with the smoothing bar form again being the most abundant. The relatively high specific fluxes of BSi in the Huanghe River reflect its high turbidity and high erosion rates in the basin. The high sediment load originating on the Loess Plateau is likely responsible for the higher BSi flux, in agreement with a general trend of increasing BSi flux with increasing sediment flux in global river systems. This study demonstrates that BSi transported by rivers can be composed largely of phytoliths originating from the erosion of topsoils. The flux of phytoliths in river's suspended sediment load may therefore represent a significant contribution to the biogeochemical cycle of silica in coastal waters.

关键词： phytolith biogenic silica dissolved silicate suspended particle material Huanghe River (Yellow River)

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SmEGY3 mediates H_(2)O_(2)production to enhance high-temperature stress tolerance by activating the expression of SmCSD1 in eggplant

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Horticultural Plant Journal 2024年第5期10卷 1247-1251页

作者： Renjian Liu Bingwei yu Bingbing Shu yuyuan Wang yuwei Gan yonggui Liang Zhengkun Qiu Shuangshuang Yan Bihao Cao Key Laboratory of Horticultural Crop Biology and Germplasm Innovation in South China Ministry of AgricultureCollege of HorticultureSouth China Agricultural UniversityGuangzhouGuangdong 510642China Guangdong Vegetable Engineering and Technology Research Center South China Agricultural UniversityGuangzhouGuangdong 510642China

High temperature(HT)has major effects on the growth and production of vegetable crops,including eggplant(Solanum melongena L.).Eggplant seedlings,flower organs,and fruits are affected by high temperature stress(HTS).Nonetheless,key HT response factors are rare in *** this study,we found that SmEGY3 was localized in chloroplasts and nuclei,and the expression was induced by *** confirmed that SmEGY3 played a positive role in regulating heat tolerance of plants by virus-induced gene silencing(VIGS)and overexpression *** to the control plants,the SmEGY3-silenced plants showed significantly decrease in the H_(2)O_(2)content and H_(2)O_(2)-mediated retrograde signalling genes expression while the SmEGY3-overexpressing plants displayed significantly increase.

关键词： crops fir organs

A bHLH transcription factor,CsSPT,regulates high-temperature resistance in cucumber

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Horticultural Plant Journal 2024年第2期10卷 503-514页

作者： yonggui Liang Chenyu Yang Fangyan Ming Bingwei yu Zhihua Cheng Yixi Wang Zhengkun Qiu Xiaolan Zhang Bihao Cao Shuangshuang Yan Key Laboratory of Biology and Genetic Improvement of Horticultural Crops(South China) Ministry of Agriculture and Rural AffairsGuangdong Vegetable Engineering and Technology Research CenterCollege of HorticultureSouth China Agricultural UniversityGuangzhouGuangdong 510642China State Key Laboratories of Agrobiotechnology Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable CropsMOE Joint Laboratory for International Cooperation in Crop Molecular BreedingChina Agricultural UniversityBeijing 100193China

High-temperature stress threatens the growth and yield of crops. Basic helix-loop-helix(bHLH) transcription factors(TFs) have been shown to play important roles in regulating high-temperature resistance in plants. However, the bHLH TFs responsible for high-temperature tolerance in cucumbers have not been identified. We used transcriptome profiling to screen the high temperature-responsive candidate bHLH TFs in cucumber. Here, we found that the expression of 75 CsbHLH genes was altered under high-temperature stress. The expression of the CsSPT gene was induced by high temperatures in TT(Thermotolerant) cucumber plants. However, the Csspt mutant plants obtained by the CRISPR-Cas9 system showed severe thermosensitive symptoms, including wilted leaves with brown margins and reduced root density and cell *** Csspt mutant plants also exhibited elevated H_(2)O_(2) levels and down-regulated photosystem-related genes under normal ***, there were high relative electrolytic leakage(REC), malondialdehyde(MDA), glutathione(GSH), and superoxide radical(O_(2)^(·-)) levels in the Csspt mutant plants, with decreased Proline content after the high-temperature treatment. Transcriptome analysis showed that the photosystem and chloroplast activities in Csspt mutant plants were extremely disrupted by the high-temperature stress compared with wildtype(WT) plants. Moreover, the plant hormone signal transduction, as well as MAPK and calcium signaling pathways were activated in Csspt mutant plants under high-temperature stress. The HSF and HSP family genes shared the same upregulated expression patterns in Csspt and WT plants under high-temperature conditions. However, most bHLH, NAC, and bZIP family genes were significantly down-regulated by heat in Csspt mutant plants. Thus, these results demonstrated that CsSPT regulated the high-temperature response by recruiting photosynthesis components, signaling pathway molecules, and transcription factors. Our results pro

关键词： Cucumber bHLH CsSPT Photosynthesis High temperature

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河北省碳排放及其影响因素变化趋势研究

环境科学与技术 2018年第1期41卷 184-191页

作者：何永贵于江浩华北电力大学经济管理系河北保定071000

在国家"十三五"规划政策的指引下,减少碳排放是当今社会的大势所趋。以产业结构调整优化为目的,就河北省碳排放及其影响因素变化趋势进行研究,旨在生态文明建设中促进京津冀产业协同发展。在研究碳排放时,运用STIRPAT模型,根据河北省实... 详细信息

在国家"十三五"规划政策的指引下,减少碳排放是当今社会的大势所趋。以产业结构调整优化为目的,就河北省碳排放及其影响因素变化趋势进行研究,旨在生态文明建设中促进京津冀产业协同发展。在研究碳排放时,运用STIRPAT模型,根据河北省实际情况,将影响碳排放的因素分为城市化水平、人口数量、富裕度和能源强度,并选取了河北省2003-2014年碳排放及其相关数据作为研究样本,经过对能源消耗量的转换计算得到比较精确的碳排放数据。在此基础上分别建立碳排放灰色GM(1,1)预测模型和碳排放影响因素灰色GM(1,1)预测模型来预测2015-2020年对应的数据变化。并分析各个影响因素的变化趋势及其对碳排放的影响。经过分析发现,富裕度对碳排放影响最大,所以政府等相关部门应加大对该方面的监督与管理,从而从整体上达到低碳的目标。

关键词：河北省碳排放 STIRPAT模型灰色GM(1,1)预测模型精度检验

边界层效应影响等离子体气动激励诱导激波机理

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强激光与粒子束 2011年第8期23卷 2093-2096页

作者：程邦勤孙权喻永贵孔维嵩刘嘉空军工程大学飞行器与动力工程系西安710038 空军工程大学电子科学系西安710038

针对小型暂冲式超声速风洞进行的诱导激波实验结果,提出等离子体气动激励诱导激波的机理不仅取决于放电时产生的焦耳热效应,放电区域的边界层厚度也起到了决定性的作用的推论。为进一步验证此思想,在高超声速激波风洞进行了等离子体气... 详细信息

针对小型暂冲式超声速风洞进行的诱导激波实验结果,提出等离子体气动激励诱导激波的机理不仅取决于放电时产生的焦耳热效应,放电区域的边界层厚度也起到了决定性的作用的推论。为进一步验证此思想,在高超声速激波风洞进行了等离子体气动激励诱导激波的实验研究。结果表明,在边界层很薄的情况下,等离子体气动激励能够诱导出斜激波。分别阐述了两种实验条件下诱导激波的机理,证实了边界层效应在等离子体与激波相互作用中起到了决定性作用。

关键词：边界层等离子体气动激励焦耳热效应激波

介质阻挡放电等离子体与激波相互作用实验研究

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强激光与粒子束 2011年第7期23卷 1950-1954页

作者：喻永贵程邦勤孙权孔维嵩王哲空军工程大学飞行器与动力工程系中国人民解放军93651部队

主要针对介质阻挡放电等离子体改变激波系结构展开了实验研究。验证了介质阻挡放电等离子体气动激励能够对边界层施加影响,顺气流放电时能减小激波强度,逆气流放电时能增大激波强度。逆气流放电时,3组电极放电与4组电极放电比较,3组电... 详细信息

主要针对介质阻挡放电等离子体改变激波系结构展开了实验研究。验证了介质阻挡放电等离子体气动激励能够对边界层施加影响,顺气流放电时能减小激波强度,逆气流放电时能增大激波强度。逆气流放电时,3组电极放电与4组电极放电比较,3组电极放电时压比更高。由于在该实验中放电区域比边界层小得多,介质阻挡放电产生的体积力远小于高速来流条件下的气动力,因此对激波的作用效果十分微弱。

关键词：等离子体介质阻挡放电激波边界层超声速风洞

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藏成药五味麝香丸中麝香的质量标准研究

中国药房 2007年第12期18卷 952-954页

作者：范维强余永贵廖瑜四川省阿坝州食品药品检验所马尔康县624000

目的：建立五味麝香丸的质量标准.方法：分别采用薄层色谱（TLC）法和高效液相色谱（HPLC）法对制剂中的麝香酮（C16H30O）进行鉴别和含量测定.结果：麝香酮进样量在0.08～1.28 μg范围内与峰面积积分值呈良好的线性关系（r=0.999 8,n=3... 详细信息

目的：建立五味麝香丸的质量标准.方法：分别采用薄层色谱（TLC）法和高效液相色谱（HPLC）法对制剂中的麝香酮（C16H30O）进行鉴别和含量测定.结果：麝香酮进样量在0.08～1.28 μg范围内与峰面积积分值呈良好的线性关系（r=0.999 8,n=3）;平均加样回收率为98.7%（RSD=1.8%）.结论：所建标准可用于该制剂的质量控制.

关键词：藏药五味麝香丸麝香酮薄层色谱法高效液相色谱法

Growth, defects and other properties in Czochralski grown KTN crystals

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Growth, defects and other properties in Czochralski grown KT...

Analysis of genetic effects and correlations for nutrient quality traits of indica rice in different environments

第14届全国晶体生长与材料学术会议

作者： Wang Xuping Wang Jiyang yu yonggui Zhang Huaijin State Key Laboratory of Crystal Materials, Shandong University, Jinan Shandong 250100

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Chinese Rice Research Newsletter 1997年第1期5卷 2-4页

作者： SHI Chunhai and ZHU Jun , Agronomy Dept YANG Xiaoe, XUE Jianming , and yu yonggui, Dept of Soil Sci and Agri Chem, Zhejiang Agri Univ, Hangzhou 310029, China

Understanding the variation for the expressionof genes in different environments is one of themajor goals in qualitative genetics. In this pa-per, the genetic models for quantitative traitsof endosperm in cereal crops were used to eval-uate the seed, cytoplasm and maternal geneticeffects as well as the genotype × environment(GE) interaction effects, and to predict thebreeding value of parents and genotypic corre-lation for nutrient quality traits of indica rice (Oryza sativa L.).

关键词： Analysis of genetic effects and correlations for nutrient quality traits of indica rice in different environments