|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Mapping wetland changes in China between 1978 and 2008显示文摘Four wetland maps for all China have been produced,based on Landsat and CBERS-02B remote sensing data between 1978 and 2008 (1978,1990,2000 and 2008).These maps were mainly developed by manual interpretation and validated by substantial field investigation in 2009.Based on these maps,we analyzed the 2008 wetland distribution in China and discussed wetland changes and their drivers over the past 30 years.(i) There were about 324097 km 2 of wetlands in 2008,for which inland marshes or swamps were the most common wetland type (35%),with lakes (26%) second.Most of the wetlands were in Heilongjiang,Inner Mongolia,Qinghai and Tibet,occupying about 55% of the national wetland area.(ii) From 1978 to 2008,China's wetland area continually and significantly decreased,by about 33% based on changes in the wetland map.This was in sharp contrast to the increase in artificial wetlands,which increased by about 122%.Inland marshes accounted for the main loss of total wetlands from 1978 to 2000.From 2000 through 2008,riverine and lacustrine wetlands constituted the main wetland loss.Fortunately however,the rate of wetland loss decreased from 5523 to 831 km 2 /a.(iii) The change ratio of lost natural wetlands (including inland and coastal wetlands) to non-wetlands has decreased slightly over the past 30 years.From 1978 to 1990,nearly all natural wetlands (98%) lost were transformed into non-wetlands.However,the ratio declined to 86% from 1990 to 2000,and to 77% from 2000 to 2008.(iv) All Chinese provinces were divided into three groups according to patterns of wetland changes,which could relate to the driving forces of such changes.Tibet was completely different from other provinces,as it was one representative example in which there was a net wetland increase,because of global warming and decreased human activity since 1990.Increased economic development caused considerable wetland loss in most eastern provinces,and artificial wetlands increased. | NIU ZhenGuo ZHANG HaiYing WANG XianWei YAO WenBo ZHOU DeMin ZHAO KuiYi ZHAO Hui LI NaNa HUANG HuaBing LI CongCong YANG Jun LIU CaiXia LIU Shuang WANG Lin LI Zhan YANG ZhenZhong QIAO Fei ZHENG YaoMin CHEN YanLei SHENG YongWei GAO XiaoHong ZHU WeiHong WANG WenQing WANG Hong WENG YongLing ZHUANG DaFang LIU JiYuan LUO ZhiCai CHENG Xiao GUO ZiQi GONG Peng | 2012 | Chinese Science Bulletin2012,57,22: | 51 |
| 2 | Manipulating mRNA splicing by base editing in plants显示文摘Precursor-mRNAs(pre-mRNA) can be processed into one or more mature m RNA isoforms through constitutive or alternative splicing pathways. Constitutive splicing of pre-mRNA plays critical roles in gene expressional regulation, such as intronmediated enhancement(IME), whereas alternative splicing(AS) dramatically increases the protein diversity and gene functional regulation. However, the unavailability of mutants for individual spliced isoforms in plants has been a major limitation in studying the function of mRNA splicing. Here, we describe an efficient tool for manipulating the splicing of plant genes. Using a Cas9-directed base editor, we converted the 5′ splice sites in four Arabidopsis genes from the activated GT form to the inactive AT form. Silencing the AS of HAB 1.1(encoding a type 2 C phosphatase) validated its function in abscisic acid signaling, while perturbing the AS of RS31 A revealed its functional involvement in plant response to genotoxic treatment for the first time. Lastly,altering the constitutive splicing of Act2 via base editing facilitated the analysis of IME. This strategy provides an efficient tool for investigating the function and regulation of gene splicing in plants and other eukaryotes. | Chenxiao Xue Huawei Zhang Qiupeng Lin Rong Fan Caixia Gao | 2018 | Science China(Life Sciences)2018,61,11: | 18 |
| 3 | The vernalization-induced long non-coding RNA VAS functions with the transcription factor TaRF2b to promote TaVRN1 expression for flowering in hexaploid wheat显示文摘Vernalization is a physiological process in which prolonged cold exposure establishes flowering competence in winter plants. In hexaploid wheat, TaVRN1 is a cold-induced key regulator that accelerates floral transition. However, the molecular mechanism underlying the gradual activation of TaVRN1 during the vernalization process remains unknown. In this study, we identified the novel transcript VAS (TaVRN1 alternative splicing) as a non-coding RNA derived from the sense strand of the TaVRN1 gene only in winter wheat, which regulates TaVRN1 transcription for flowering. VAS was induced during the early period of vernalization, and its overexpression promoted TaVRN1 expression to accelerate flowering in winter wheat. VAS physically associates with TaRF2b and facilitates docking of the TaRF2b-TaRF2a complex at the TaVRN1 promoter during the middle period of vernalization. TaRF2b recognizes the Sp1 motif within the TaVRN1 proximal promoter region, which is gradually exposed along with the disruption of a loop structure at the TaVRN1 locus during vernalization, to activate the transcription of TaVRN1. The tarf2b mutants exhibited delayed flowering, whereas transgenic wheat lines overexpressing TaRF2b showed earlier flowering. Taken together, our data reveal a distinct regulatory mechanism by which a long non-coding RNA facilitates the transcription factor targeting to regulate wheat flowering, providing novel insights into the vernalization process and a potential target for wheat genetic improvement. | Shujuan Xu Qi Dong Min Deng Dexing Lin Jun Xiao Peilei Cheng Lijing Xing Yuda Niu Caixia Gao Wenhao Zhang Yunyuan Xu Kang Chong | 2021 | Molecular Plant2021,14,9: | 7 |
| 4 | Ruminal fermentation and microbial community differently influenced by four typical subtropical forages in vitro显示文摘The present study evaluated the effects of 4 typical subtropical forages on ruminal microbial community composition to formulate a better diet for buffalo.Corn straw silage,elephant grass,cassava residues and sugarcane tail silage were used as substrates for in vitro fermentation.Eight replicates were set up for every substrate,and fermentation was carried out in a 100-m L glass syringe,using buffalo rumen inoculum.Every replicate was anaerobically dispensed with 10 m L of rumen inoculum,20 m L of Mc Dougall's buffer and 200 mg of dried substrate,and placed in a water bath at 39C.Gas production was recorded at 0,2,6,12,24,36,48 and 72 h of incubation.After 24 h,fermentation was ceased for 4 replicates and samples were collected.Volatile fatty acids(VFA) concentrations were measured using gas chromatography.Microbial populations were quantified using quantitative real-time PCR(q RT-PCR),and microbial community was analyzed using high throughput sequencing technology.The results showed,cassava residues as substrate had the highest gas production,acetate,propionate and total VFA concentrations(P < 0.05),and corn straw silage had the lowest acetate:propionate ratio(P < 0.05).The lowest numbers of fungi,Ruminococcus albus and Fibrobacter succinogenes,and the highest number of protozoa were observed with cassava residues(P < 0.05).The least abundances of bacterial phyla Firmicutes,Bacteroidetes and genus Prevotella,and substantially higher abundance of phylum proteobacteria(56%) and genus Succinivibrio(52%) were observed with cassava residues.The most abundances of Methanobrevibacter gottschalkii and Entodinium were observed with cassava residues.Spearman's correlations analysis showed,Succinivibrio had strong positive correlations with propionate,butyrate,Metadinium and M.gottschalkii,indicating fermentation products were related to microbial community.In conclusion,incubation with cassava residues resulted in lower number of fiber degrading microbes but higher protozoal population because of its low fiber contents.The microbial community was highly altered by in vitro incubation with cassava residues,whereas remained similar for the other 3 high fiber containing substrates. | Muhammad W.Iqbal Qin Zhang Yingbai Yang Caixia Zou Lili Li Xin Liang Shengju Wei Bo Lin | 2018 | Animal Nutrition2018,,1: | 6 |
| 5 | QTL mapping for grain number per spikelet in wheat using a high-density genetic map显示文摘Grain number per spikelet (GNS) is a key determinant of grain yield in wheat.A recombinant inbred line population comprising 300 lines was developed from a cross between a high GNS variety H461 and Chinese Spring from which the reference genome assembly of bread wheat was obtained.Both parents and the recombinant inbred lines were genotyped using the wheat 55K single nucleotide polymorphism(SNP) array.A high-density genetic map containing 21,197 SNPs was obtained.These markers covered each of the 21 chromosomes with a total linkage distance of 3792.71 c M.Locations of these markers in this linkage map were highly consistent with their physical locations in the genome assembly of Chinese Spring.The two parents and the whole RIL population were assessed for GNS in two consecutive years at two different locations.Based on multi-environment phenotype data and best liner unbiased prediction values,three quantitative trait loci (QTL) for GNS were identified.One of them located on chromosomes 2B and the other two on 2D.Phenotypic variation explained by these loci varied from 3.07%to26.57%.One of these QTL,QGns.sicau-2D-2,was identified in each of all trials conducted.Based on the best linear unbiased prediction values,this locus explained 19.59%–26.57%of phenotypic variation.A KASP(Kompetitive Allele-Specific PCR) marker closely linked with this locus was generated and used to validate the effects of this locus in three different genetic backgrounds.The identified QTL and the KASP marker developed for it will be highly valuable in fine-mapping the locus and in exploiting it for markerassisted selection in wheat breeding programs. | Yu Lin Xiaojun Jiang Haiyan Hu Kunyu Zhou Qing Wang Shifan Yu Xilan Yang Zhiqiang Wang Fangkun Wu Shihang Liu Caixia Li Mei Deng Jian Ma Guangdeng Chen Yuming Wei Youliang Zheng Yaxi Liu | 2021 | The Crop Journal2021,9,5: | 4 |
| 6 | Genome editing in plants with MAD7 nuclease显示文摘MAD7 is an engineered nuclease of the Class 2 type V-A CRISPR-Cas(Cas12 a/Cpf1)family with a low level of homology to canonical Cas12 a nucleases.It has been publicly released as a royalty-free nuclease for both academic and commercial use.Here,we demonstrate that the CRISPR-MAD7 system can be used for genome editing and recognizes T-rich PAM sequences(YTTN)in plants.Its editing efficiency in rice and wheat is comparable to that of the widely used CRISPR-Lb Cas12 a system.We develop two variants,MAD7-RR and MAD7-RVR that increase the target range of MAD7,as well as an M-AFID(a MAD7-APOBEC fusion-induced deletion)system that creates predictable deletions from 50-deaminated Cs to the MAD7-cleavage site.Moreover,we show that MAD7 can be used for multiplex gene editing and that it is effective in generating indels when combined with other CRISPR RNA orthologs.Using the CRISPR-MAD7 system,we have obtained regenerated mutant rice and wheat plants with up to 65.6%efficiency. | Qiupeng Lin Zixu Zhu Guanwen Liu Chao Sun Dexing Lin Chenxiao Xue Shengnan Li Dandan Zhang Caixia Gao Yanpeng Wang Jin-Long Qiu | 2021 | Journal of Genetics and Genomics2021,48,6: | 4 |
| 7 | 大功率霍尔电推进研究进展显示文摘High power Hall electric propulsion technology is a very competitive electric propulsion technology for future large space missions such as large GEO satellites,manned space programs,deep space explorations,cargo ships,space tugs.Based on the experience of more than 20 years in research and development of Hall electric propulsion,the Shanghai Institute of Space Propulsion(SISP)has developed 3 high power Hall thrusters,i.e.,the 10 k W class HET-500,20 k W class HET-1000,and 50 k W class HET-3000.This paper presents the development status of the high power(≥10 k W)Hall electric propulsion at SISP,including tests of 3 high power Hall thrusters in the power range from 10 k W to 50 k W,the qualification of a single string of a 10 k W Hall electric propulsion system,and the study of a cluster of two 1.35 k W HET-80 Hall thrusters to understand the technical issues related to multi-thruster high power electric propulsion systems. | HANG Guanrong ZHAO Zhen YU Shuilin QIAO Caixia LIU Jia HUANG Hao TIAN Leichao LI Lin LI Wenshuai KANG Xiaolu | 2020 | Aerospace China2020,21,2: | 3 |
| 8 | Environmentally responsive dual-targeting nanotheranostics for overcoming cancer multidrug resistance显示文摘The development of multiple drug resistance(MDR) to chemotherapy and subsequent treatment failures are major obstacles in cancer therapy. An attractive option for combating MDR is inhibiting the expression of P-glycoprotein(P-gp) in tumor cells. Here, we report a novel chemosensitizing agent, XMD8-92,which can down-regulate P-gp. To enhance the specificity of MDR chemotherapy, a promising nanotheranostic micelle system based on poly(ethylene glycol)-blocked-poly(L-leucine)(PEG-b-Leu) was developed to simultaneously carry the anticancer drug doxorubicin, chemosensitizing agent XMD8-92, and superparamagnetic iron oxide nanoparticles(SPIOs). Featured with MDR environmentally responsive dual-targeting capability, controllable drug delivery, and efficient magnetic resonance(MR) imaging characteristics, the prepared nanotheranostics(DXS@NPs) showed outstanding in vitro cytotoxicity on MDR cells(SCG 7901/VCR) with only 53% of cells surviving compared to 90% of DOX-treated cells.Furthermore, efficient tumor inhibition and highly reduced systemic toxicity were exhibited by MDR tumor-bearing mice treated with DXS@NPs. Overall, the environmentally responsive dual-targeting nanotheranostics represent a promising approach for overcoming cancer MDR. | Caixia Yang Xin Pang Weihai Chen Xiaoyong Wang Gan Lin Chengchao Chu Xianzheng Zhang Xianming Deng Xiaoyuan Chen Gang Liu | 2019 | Science Bulletin2019,64,10: | 3 |
| 9 | The chemistry of heavy haze over Urumqi, Central Asia显示文摘 | Juan Li Guoshun Zhuang Kan Huang Yanfen Lin Qiongzhen Wang Yuhong Guo Jinghua Guo Shulong Yu Caixia Cui Joshua S. Fu | 2008 | Journal of Atmospheric Chemistry2008,,1: | 2 |
| 10 | Prostate specific membrane antigen knockdown impairs the tumorigenicity of LNCaP prostate cancer cells by inhibiting the phosphatidylinositol 3-kinase/Akt signaling pathway显示文摘 | Guo Zhenghui Lai Yiming Du Tao Zhang Yiming Chen Jieqing Bi Liangkuan Lin Tianxin Liu Hao Wang Wei Xu Kewei Jiang Chun Han Jinli Zhang Caixia Dong Wen Huang Jian Huang Hai | 2014 | Chinese Medical Journal2014,,5: | 2 |
| 11 | Stress-induced curcin-L promoter in leaves of Jatropha curcas L. and characterization in transgenic tobacco显示文摘 | Xiaobo Qin Xiaojiang Zheng Caixia Shao Jihai Gao Luding Jiang Xunlu Zhu Fang Yan Lin Tang Ying Xu Fang Chen | 2009 | Planta2009,,2: | 1 |
| 12 | A durable Ni/La-Y catalyst for efficient hydrogenation of γ-valerolactone into pentanoic biofuels显示文摘Zeolite-supported metal catalysts containing hydrogenation centers and acid sites are promising in the chemoselective hydrogenation of biomass platform molecules into value-added chemicals and fuels.The primary challenge of employing such bifunctional catalysts for biomass conversion lies in catalyst stability in the liquid phase under harsh conditions. Herein, we have prepared a Ni/La-Y nanocatalyst via an improved wet impregnation method. Compared with Ni nanoparticles on H-Y, La addition shows a significantly enhanced stability and performance in the continuous liquid-phase hydrogenation of γ-valerolactone(GVL) into ethyl pentanoate(EP) at 200 ℃ for 1000 h. Complementary characterization studies reveal that La addition in the metal/zeolite catalyst not only efficiently modulates the acid property of the zeolite to alleviate coke formation, but also suppresses zeolite dealumination and metal agglomeration and leaching upon catalysis over a 1000 h period. These findings provide an efficient approach for improving the stability of zeolite-supported bifunctional catalysts, leading to potential application in hydrogen-assisted biomass valorization under the liquid-phase conditions. | Jiang He Lu Lin Meng Liu Caixia Miao Zhijie Wu Rui Chen Shaohua Chen Tiehong Chen Yang Su Tao Zhang Wenhao Luo | 2022 | Journal of Energy Chemistry2022,31,7: | 1 |
| 13 | Leptin induces cell proliferation and reduces cell apoptosis by activatingc-myc in cervical cancer显示文摘 | Yong Yuan Juan Zhang Lin Cai Caixia Ding Xiaomin Wang Hongmei Chen Xian Wang Jun Yan Jianrong Lu | 2013 | Oncology Reports2013,,6: | 1 |
| 14 | The isolation of Pi1, an allele at the Pik locus which confers broad spectrum resistance to rice blast显示文摘 | Lixia Hua Jianzhong Wu Caixia Chen Weihuai Wu Xiuying He Fei Lin Li Wang Ikuo Ashikawa Takashi Matsumoto Ling Wang Qinghua Pan | 2012 | Theoretical and Applied Genetics2012,,5: | 1 |
| 15 | Effects of Twaron fiber surface treatment by air dielectric barrier discharge plasma on the interfacial adhesion in fiber reinforced composites显示文摘 | Jia Caixia Chen Ping Lin Bin | 2010 | Surf Coat Tech2010,204,2122: | 1 |
| 16 | Preparation and characterization of CdS hollow spheres显示文摘 | SONG Caixia GU Guohua LIN Yusheng | 2003 | Mater Res Bull2003,38,5: | 1 |
| 17 | Surface treatment of ar- amid fiber by air dielectric barrier discharge plasma at atmos- pheric pressure 显示文摘 | Jia Caixia Chen Ping Lin Wei | 2011 | Appl Surf Sci2011,257,9: | 1 |
| 18 | Preparation and characterization of cdS hollow spheres 显示文摘 | Song Caixia Gu Guohua Lin Yu Sheng | 2003 | Material Research Bulletin2003,38,: | 1 |
| 19 | Infertility with defective spermatogenesis and steroidogenesis in male mice lacking androgen receptor in Leydig cells显示文摘 | Qingquan Xu Hung-Yun Lin Shauh-Der Yeh I-Chen Yu Ruey-Shen Wang Yen-Ta Chen Caixia Zhang Saleh Altuwaijri Lu-Min Chen Kuang-Hsiang Chuang Han-Sun Chiang Shuyuan Yeh Chawnshang Chang | 2007 | Endocrine2007,,1: | 1 |
| 20 | Preparation and characterization of TiO2 hollow spheres 显示文摘 | Wang Debao Song Caixia Lin Yusheng | 2006 | Materials Letters2006,60,: | 1 |