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| 1 | Effects of stem structure andcell wall components on bending strength in wheat显示文摘Morphological traits, anatomical features, chemical components and bending stress in the stems of three genotypes of wheat (Triticum aestivum L.), namely Xiaoyan54, 8602 and Xiaoyan81, were ex- amined by means of light microscopy coupled with Fourier transform infrared spectroscopy (FTIR). No- ticeable changes in morphological and anatomical traits were observed, including outer radius of stem, the ratio of stem outer radius to stem wall thickness, various tissue proportions and variations among dif- ferent types of vascular bundles. The results of chemical analysis revealed that Xiaoyan81 had the highest cellulose content in comparison with Xiao- yan54 and 8602, whereas lignin level in Xiaoyan81 was lower than that in 8602 but higher that that in Xiaoyan54. Bending stress analysis demonstrated that Xiaoyan81 may be the main target for identifica- tion, for it had the highest bending stress among the stems of three genotypes. Associated with bending stress, all the results presented here suggested that the ratio of stem wall thickness to its outer radius, schlerenchyma tissue proportion, the average num- ber of big VB per unit and the cellulose content are four important factors affecting the mechanical strength of Xiaoyan81 wheat stems, which can be considered as the key parameters for selecting varie- ties with bending stress. Therefore, it was suggested that in the selection of lodging resistant cultivars one should consider those characterized with large ratio of outer radius of stem to stem wall thickness, great-erschlerenchyma tissue proportion, high average number of big VB per unit with high cellulose content in their stems. | WANG Jian ZHU Jinmao LIN Qinqin LI Xiaojuan TENG Nianjun LI Zhensheng LI Bin ZHANG Aimin LIN Jinxing | 2006 | Chinese Science Bulletin2006，51，7： | 30 |
| 2 | Cytological and Molecular Characteristics of Pollen Abortion in Lily with Dysplastic Tapetum显示文摘Lily was grown worldwide as a fresh cutting flower because of its colorful petals, but its anther contained a large number of pollen grains that cause serious pollen contamination, however, pollen abortion can effectively reduce the level of pollen pollution. Our analysis aims to use cytological observation to detect the critical stage when pollen abortion occurs and to provide comprehensive gene expression information at the transcriptional level. The result showed that pollen abortion in ‘Little Kiss’ began at the mononuclear stage and the callose that covers the microspores failed to degenerate when young pollens were released from the tetrads. In addition, compared with the normally developed one,the tapetum of ‘Little Kiss’ degraded in advance while the degradation of callose was delayed. Furthermore, 103 differentially expressed genes(DEGs) related to the advance degeneration of tapetum cells and callose were found in the expression levels, including 22 transcription factors(TFs). In particular, two β-glucanase genes(endo-1,3(4)-β-glucanase, exo-β-glucanase) responsible for callose degeneration were significantly down-regulated. These results suggested that pollen abortion may occur at mononuclear stage and that early degeneration of tapetum cells resulted in a significant down-regulation of β-glucanase genes. As a result, the callose to cover microspores impedes the formation of pollen walls, which may possibly lead to pollen abortion. | Xueqian Wang Ze Wu Lanqing Wang Meijiao Wu Dehua Zhang Weimin Fang Fadi Chen Nianjun Teng | 2019 | Horticultural Plant Journal2019，5，6： | 9 |
| 3 | Preparation of copper nanoparticles modified with [BMIm]BF_4 ionic liquid显示文摘Copper nanoparticles was prepared by ascorbic acid reducing CuCl2 solution modified with [BMIm]BF4 ionic liquid. The size of copper nanoparticles was obviously affected by the concentration of Cu2+. The diameter of nanoparticles was smaller than 10 nm when the Cu2+ concentration was smaller than 2×10-2 mol/L. The pH and temperature of reductive reaction had no obvious effect on the size of copper nanoparticles. | Su Yongqing Li Cong Yang Mingdi Cai Ying Ren Nianjun | 2010 | Engineering Sciences2010，8，2： | 5 |
| 4 | Photocatalytic and Electrocatalytic Generation of Hydrogen Peroxide: Principles, Catalyst Design and Performance显示文摘Hydrogen peroxide(H_(2)O_(2)) is a high-demand organic chemical reagent and has been widely used in various modern industrial applications. Currently,the prominent method for the preparation of H_(2)O_(2) is the anthraquinone oxidation.Unfortunately, it is not conducive to economic and sustainable development since it is a complex process and involves unfriendly environment and potential hazards. In this context, numerous approaches have been developed to synthesize H_(2)O_(2). Among them, photo/electro-catalytic ones are considered as two of the most promising manners for on-site synthesis of H_(2)O_(2). These alternatives are sustainable in that only water or O_(2) is required. Namely, water oxidation(WOR) or oxygen reduction(ORR)reactions can be further coupled with clean and sustainable energy. For photo/electro-catalytic reactions for H_(2)O_(2) generation, the design of the catalysts is extremely important and has been extensively conducted with an aim to obtain ultimate catalytic performance. This article overviews the basic principles of WOR and ORR,followed by the summary of recent progresses and achievements on the design and performance of various photo/electro-catalysts for H_(2)O_(2) generation. The related mechanisms for these approaches are highlighted from theoretical and experimental aspects. Scientific challenges and opportunities of engineering photo/electro-catalysts for H_(2)O_(2) generation are also outlined and discussed. | Yan Guo Xili Tong Nianjun Yang | 2023 | Nano-Micro Letters2023，15，6： | 4 |
| 5 | 印度尼西亚茶叶生产现状及发展趋势显示文摘印度尼西亚是世界第七大产茶国,在国际茶叶生产中占有一定的地位。历史上印尼曾是第三大产茶国(1918年),2003年前一直位列中国、印度、斯里兰卡和肯尼亚之后,居世界第五,2004年被土耳其超越,2006年又落后于越南,降至第七。为扭转这种不利局面,商品共同基金(CFC)给印尼茶叶局设立了一个国际合作项目,以提升该国的茶叶生产技术水平及组织管理能力。本文的二位作者分别作为商品共同基金项目经理和该项目的国际咨询专家,对印尼茶叶生产情况进行了多次考察和调查。 | Nianjun Shen 韩文炎 | 2013 | 中国茶叶2013，35，4： | 4 |
| 6 | A new approach to promote astaxanthin accumulation via Na_2WO_4 in Haematococcus pluvialis显示文摘The optimum concentration of Na_2 WO_4 was explored in relation to the cell density and astaxanthin content in Haematococcus pluvialis. Then, the cellular morphology, nitrate reductase(NR) activity, soluble sugar and protein contents, and chlorophyll ?uorescence were measured, and the transcriptional expression of carotenogenic genes was determined by quantitative real-time PCR. The results showed that 3.0 mmol/L of Na_2 WO_4 was the optimum concentration to induce astaxanthin accumulation, with a maximum content of 49.41±0.13 pg/cell reached on the tenth day. The NR activity decreased signi?cantly and continually after Na_2 WO_4 treatment. The soluble sugar content increased gradually during the experimental period and was eventually signi?cantly higher than that in the control. The soluble protein content increased rapidly,reached a maximum in day 0.5 and day 1 and then decreased. The ef fective photochemical effciency of PSII( F v'/F m') and light saturation( E k) ?rst decreased and then tended to stabilize, and NADP +-glyceraldehyde-3-phosphate dehydrogenase(GAPDH) gene expression was correlated with photosynthesis. The transcriptional expression of ipi, psy and bkt was signi?cantly increased compared with that in the control after application of Na_2 WO_4, and the relative expression of ipi reached the highest level on the ?fth day, with a 98.03±1.92-fold increase. Our results describe a new approach to promote the ef fective accumulation of astaxanthin in H. pluvialis by NR inhibitor Na_2 WO_4. | LI Yanguo CUI DANDan ZHUO Pinli ZHANG Lin SUN Xue XU Nianjun | 2019 | Journal of Oceanology and Limnology2019，37，1： | 3 |
| 7 | Changes in Growth, Carbon and Nitrogen Enzyme Activity and mRNA Accumulation in the Halophilic Microalga Dunaliella viridis in Response to NaCl Stress显示文摘Many species of microalga Dunaliella exhibit a remarkable tolerance to salinity and are therefore ideal for probing the effects of salinity. In this work, we assessed the effects of NaCl stress on the growth, activity and m RNA level of carbon and nitrogen metabolism enzymes of D. viridis. The alga could grow over a salinity range of 0.44 mol L^(-1) to 3.00 mol L^(-1) NaCl, but the most rapid growth was observed at 1.00 mol L^(-1) NaCl, followed by 2.00 mol L^(-1) NaCl. Paralleling these growth patterns, the highest initial and total Rubisco activities were detected in the presence of 1.00 mol L^(-1) NaCl, decreasing to 37.33% and 26.39% of those values, respectively, in the presence of 3.00 mol L^(-1) Na Cl, respectively. However, the highest extracellular carbonic anhydrase(CA) activity was measured in the presence of 2.00 mol L^(-1) NaCl, followed by 1.00 mol L^(-1) NaCl. Different from the two carbon enzymes, nitrate reductase(NR) activity showed a slight change under different NaCl concentrations. At the transcriptional level, the m RNAs of Rubisco large subunit(rbcL), and small subunit(rbc S), attained their highest abundances in the presence of 1.00 and 2.00 mol L^(-1)NaCl, respectively. The CA mRNA accumulation was induced from 0.44 mol L^(-1) to 3.00 mol L^(-1) NaCl, but the NR m RNA showed the decreasing tendency with the increasing salinity. In conclusion, the growth and carbon fixation enzyme of Rubisco displayed similar tendency in response to NaCl stress, CA was proved be salt-inducible within a certain salinity range and NR showed the least effect by NaCl in D. viridis. | WANG Dongmei WANG Weiwei XU Nianjun SUN Xue | 2016 | Journal of Ocean University of China2016，15，6： | 1 |
| 8 | Antibacterial bromophenols from the marine red alga Rhodomela confervoides显示文摘 | Nianjun Xu | 2003 | Phytochemistry2003，62，： | 1 |
| 9 | The impact of traffic patterns on the overhead of reactive routing protocols显示文摘 | Zhou Nianjun Wu Huaming ABOUZEID A A | 2005 | IEEE Journal on Selected Areas in Communications2005，，3： | 1 |
| 10 | Effects of nitrogen source and concentration on growth rate and fatty acid composition of Ellipsoidion sp. (Eustigmatophyta)显示文摘 | Nianjun Xu Xuecheng Zhang Xiao Fan Lijun Han Chengkui Zeng | 2001 | Journal of Applied Phycology2001，，6： | 1 |
| 11 | Studies of renal injury Ⅲ:lipid-induced nephropathy in type Ⅱdiabetes 显示文摘 | DOMINGUEZ J H TANG Nianjun XU Wei | 2000 | Kidney Int2000，57，1： | 1 |
| 12 | Effects of nitrogen source and concentration on growth rate and fatty acid composition of Ellipsoidion sp. (Eustigmatophyta)显示文摘 | Nianjun Xu Xuecheng Zhang Xiao Fan Lijun Han Chengkui Zeng | 2001 | Journal of Applied Phycology2001，，6： | 1 |
| 13 | Studies of renal injury Ⅲ: lipid-induced nephropathy in type Ⅱ diabetes 显示文摘 | TANG Nianjun XU Wei | 2000 | Kindey Int2000，57，1： | 1 |
| 14 | Antibacterial bromophenols from the marine red alga Rhodomela confervoides 显示文摘 | NIANJUN XU XIAO FAN XIAOJUN YAN | 2003 | Phytochemistry2003，62，8： | 1 |
| 15 | High-efficiency Agrobacterium-mediated transformation of chrysanthemum via vacuum infiltration of internode显示文摘Leaf disc transformation is one of the traditional methods that are now widely used in chrysanthemum with highly economical and ornamental value in world flower production,but it depends on plant genotypes and is time consuming and complicated.In addition,the transformation success rate of this method is low,generally ranging from 0.1%to 6.25%.Therefore,a highly efficient transformation system is needed.In this study,we are the first to establish a high-efficient chrysanthemum Agrobacterium-mediated transformation system via vacuum infiltration.Chrysanthemum stem internode explants were used as research material and CmLEC1 was used as a reporter gene.After approximately 3 months of culture and selection,the positive transgenic plants were obtained.Additionally,the positive probability was about 42%.The transformation efficiency was up to 37.7%,and if the escapes were removed,it was 16%.Furthermore,stable expression of CmLEC1 in transgenic'Yuhualuoying'was confirmed by qRT-PCR analysis.These results suggest that this genetic transformation system via vacuum infiltration of chrysanthemum stem internode is highly efficient and convenient,and much better than traditional leaf disc transformation,and it will play an important role in chrysanthemum transformation and functional genetics research. | Sujuan Xu Ze Wu Jingya Zhao Fengjiao Zhang Xinqi Zhang Fadi Chen Nianjun Teng | 2022 | Ornamental Plant Research2022，2，1： | 1 |
| 16 | Species Composition and Diversity of Macrobenthos in the Intertidal Zone of Xiangshan Bay,China显示文摘Xiangshan bay is a narrow semi-closed bay and situated on the northwestern coast of the East China Sea. Over past decades, it has become to a major bay with intensive human activities, dense urbanized area, and poor water quality. The aim of this paper was to reveal the ecological status through the elucidation of the species composition, abundance, biomass and diversity of macrobenthos in this bay. Six intertidal sections were surveyed from January 2007 to November 2008 quarterly. Sections TG, HD and XH are located in the three inner bays, sections QJ and WS are located near the thermal power plants, and section XX is located at the outer part of Xiangshan Bay. Great variations in macrobenthos community were indentified, and the species composition of the community in the present study showed the dominance in the order of molluscs(bivalves and gastropods), crustaceans and others, and only few Polychaeta were recorded. Only three dominant species, Littorina brevicula, Ilyplax tansuiensis, and Cerithidea cingulata were collected in all the sections, and a total of 19 dominant species were recorded only in one section. Two-way ANOVA analyses of abundance indicated that there were significant differences among sections or seasons. Shannon-Wiener diversity index(H') had its maximum(2.45) in section QJ, and minimum(1.76) in section TG. Multiple irregular k-dominance plots clearly showed that the study area was polluted and the macrobenthos community was under stress. We conclude that the macrobenthos of Xiangshan Bay have been disturbed by human activities, especially at the interior bay. | JIAO Haifeng ZHENG Dan YOU Zhongjie XU Nianjun LOU Dan HUANG Chengwei | 2015 | Journal of Ocean University of China2015，14，2： | 1 |
| 17 | Solvothermal synthesis of N-doped Ti02 nanotubes for visible-light-responsive photocatalysis 显示文摘 | Jiang Zheng Yang Fan Luo Nianjun | 2008 | ChemicalCommunication2008，，47： | 1 |
| 18 | Hydro- gen generation from liquid reforming of glycerin over Ni- Co bimetallic catalyst显示文摘 | Luo Nianjun Ouyang Kun Cao Fahai | 2010 | Biomass and Bioenergy2010，34，4： | 1 |
| 19 | Studies of renal injury Ⅲ: lipid- induced nephropathy in type Ⅱ diabetes 显示文摘 | Dominguez JH TANG Nianjun XU Wei | 2000 | Kidney Int2000，57，1： | 1 |
| 20 | Using the shape characteristics of rain to identify and remove rain from video 显示文摘 | Brewer N Liu Nianjun | 2008 | Lecture Notes in Computer Science2008，，5342： | 1 |
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