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38篇 您的检索式:作者名="Longjiang Yu"
    题名 作者 年代 出处 被引量
1Refined Kernel Principal Component Analysis Based Feature Extraction显示文摘LI Junbao YU Longjiang SUN Shenghe 2011Chinese Journal of Electronics2011,20,3:4
2Comparative study of carbonic anhydrase activity in waters among different geological eco-environments of Yangtze River basin and its ecological significance显示文摘This study provides the presence of carbonic anhydrase(CA) activity in waters of the Yangtze River basin, China, as well as the correlation of CA activity with HCO-3 concentration and CO_2 sink flux. Different degrees of CA activity could be detected in almost all of the water samples from different geological eco-environments in all four seasons. The CA activity of water samples from karst areas was significantly higher than from non-karst areas(PP3-concentration(r = 0.672, P2 sink flux(r = 0.602, P = 0.076) in karst areas. This suggests that CA in waters might have a promoting effect on carbon sinks for atmospheric CO_2 in karst river basins. In conditions of similar geological type, higher CA activity was generally detected in water samples taken from areas that exhibited better eco-environments, implying that the CA activity index of waters could be used as an indicator for monitoring ecological environments and protection of river basins. These findings suggest that the role of CA in waters in the karst carbon sink potential of river basins is worthy of further in-depth studies.Sila Onesmus Nzung'a Weizhi Pan Taiming Shen Wei Li Xiaoqun Qin Chenwei Wang Liankai Zhang Longjiang Yu 2018Journal of Environmental Sciences2018,30,4:3
3Elimination of a Retrotransposon for Quenching Genome Instability in Modern Rice显示文摘Transposable elements(TEs)constitute the most abundant portions of plant genomes and can dramatically shape host genomes during plant evolution.They also play important roles in crop domestication.However,whether TEs themselves are also selected during crop domestication has remained unknown.Here,we identify an active long terminal repeat(LTR)retrotransposon,HUO,as a potential target of selection during rice domestication and breeding.HUO is a low-copy-number LTR retrotransposon,and is active under natural growth conditions and transmitted through male gametogenesis,preferentially inserting into genomic regions capable of transcription.HUO exists in all wild rice accessions and about half of the archaeological rice grains(1200–7000 years ago)and landraces surveyed,but is absent in almost all modern varieties,indicating its gradual elimination during rice domestication and breeding.Further analyses showed that HUO is subjected to strict gene silencing through the RNA-directed DNA methylation pathway.Our results also suggest that multiple HUO copies may trigger genomic instability through altering genome-wide DNA methylation and small RNA biogenesis and changing global gene expression,resulting in decreased disease resistance and yield,coinciding with its elimination during rice breeding.Together,our study suggests that negative selection of an active retrotransposon might be important for genome stability during crop domestication and breeding.Yu Peng Yingying Zhang Yijie Gui Dong An Junzhong Liu Xun Xu Qun Li Junmin Wang Wen Wang Chunhai Shi Longjiang Fan Baorong Lu Yiwen Deng Sheng Teng Zuhua He 2019Molecular Plant2019,12,10:2
4Ancient DNA sequences of rice from the low Yangtze reveal significant genotypic divergence显示文摘Rice (Oryza sativa) was first domesticated in the lower and middle Yangtze regions of China, and rice remains have been found in many Chinese archaeological sites. Until now, only phenotypic archeobotanical evidence, such as the spikelet bases of ancient grains, has been used to speculate on the domestication process and domestication rate of rice. In this study, we sequenced 4 genomic segments from rice remains in Tianluoshan, a site of the local Hemudu Neolithic culture in the low Yangtze and two other archaeological sites (~2400 and 1200 BC, respectively). We compared our sequences with those of the current domesticated and wild rice (O. rufipogon) populations. At least two genotypes were found in the remains from each site, suggesting a heterozygotic state of the rice seeds. One ancient genotype was not found in the current domesticated population and might have been lost. The rice remains belonged to the japonica group, and most if not all were japonica-type, suggesting that the remains might be at an early stage of indica-japonica divergence or an indica-japonica mixture. We also identified sequences with significant similarity to those from species of Sapindales, Zygophyllales, and Brassicales, which is consistent with the identification of other plant remains in the Tianluoshan site and the common rice field weeds such as mustards in southern China.FAN LongJiang GUI YiJie ZHENG YunFei WANG Yu CAI DaGuang YOU XiuLing 2011Chinese Science Bulletin2011,56,28:2
5A study of the activity and ecological significance of carbonic anhydrase from soil and its microbes from different karst ecosystems of Southwest China 显示文摘Li Wei Yu Longjiang Yuan Daoxian 2005Plant and Soil2005,272,12:1
6Identification of NBS-Type Resistance Gene Homologs in Tobacco Genome显示文摘Xiaodong Leng Bingguang Xiao Sheng Wang Yijie Gui Yu Wang Xiuping Lu Jiahua Xie Yongping Li Longjiang Fan 2010Plant Molecular Biology Reporter2010,,1:1
7Microwave absorp- tion properties of double-layer absorbers made of NiCoZn ferrites and hollow glass microspheres electroless plated with FeCoNiB 显示文摘Han Mangui Ou Yu Deng Longjiang 2009Journal of Magnetism and Magnetic Materials2009,321,9:1
8Print-andscan model and the watermarking countermeasure显示文摘YU Longjiang NIU Xiamu SUN Shenghe 2005Image and Vision Computing2005,23,:1
9A new approach to the standard addition method for the analysis of F, Al and K content in green tea 显示文摘LI Tao YU Longjiang LI Maoteng 2006Microchimica Acta2006,153,:1
10Anti-inflammatory effects of leaf and twig of Tripterygium wilfordii on paw edema in mice显示文摘Longjiang Yu Mingzhang Ao Junmei Wan Yongzhong Zhang 2008Fitoterapia2008,,7:1
11Analysis of zinc in Vitex negundo foliage by AAS and application of a new kind of standard addition method 显示文摘LI Tao YU Longjiang LI Wei 2005Microchimica Acta2005,150,:1
12Ca^2+ augmentation for enhancement of aerobically grown microbial granules in sludge blanket reactors 显示文摘He Longjiang Tay J H Yu Liu 2003Biotechnology Letters2003,25,:1
13Bacteria biomass and carbonic anhydrase activity in some karat areas of Southwest China显示文摘Li Wei Yu Longjiang Yuan Daoxian 2004Journal of Asian Earth Science2004,24,2:1
14A study of the activity and ecological significance of carbonic anhydrase from soil and its microbes from different karat ecosystems of Southwest China显示文摘Li Wei Yu Longjiang Yuan Daoxian 2005Plant and Soil2005,272,12:1
15Optimization of arachidonicacid production by fed-batch culture of MortiereUa alpina based on dynamic analysis 显示文摘Zhu Min Yu Longjiang Li Wei 2006Enzyme Microb Technol2006,38,:1
16Effects of microbes and their carbonic anhydrase on Ca《'2+》 and Mg《'2+》 migration in column-built leached soil-limestone karst systems显示文摘Li Wei Yu Longjiang He Qiu-fang 2005Applied Soil Ecology2005,29,3:1
17A study of the activity and ecological significance of carbonic anhydrase from soil and its microbes from different karst ecosystems of Southwest China显示文摘Wei Li Longjiang Yu Daoxian Yuan 0,,:1
18Identification and quality evaluation ofLepidlum meyenih (Maca) based on gas chromatographic analysis of its essential oils from roots显示文摘JIN Wenwen XIONG Yue YU Longjiang 2006Scientifle Paper2006,7,3:1
19Microwave absorption properties of double-layer absorbers made of Ni Co Zn ferrites and hollow glass microspheres electroless plated with Fe Co Ni B显示文摘Han Mangui Ou Yu Deng Longjiang 2009Journal of Magnetism and Magnetic Materials2009,321,9:1
20A New Approach to the Standard Addition Method for the Analysis of F, A1 and K Content in Green Tea显示文摘Li Tao Yu Longjiang Li Maoteng 2006Microchimica Acta2006,153,1:1
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