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《Acta Agrestia Sinica》 2006-01
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Research on Salt-Tolerance of Wheatgrass Transformed by P5CS Gene

XU Chun-bo~1,MI Fu-gui~2,WANG-Yong~2(1.Grassland Research Institute of Chinese Academy of Agriculture Sciences,Huhhot,Inner Mongolia Autonomous Region 010010,China;2.Inner Mongolia Agriculture University,Huhhot,Inner Mongolia Autonomous Region 010019,China)  
Plants transformed by P5CS gene(97#、19#、66#) and negatives were tested using several salt tolerance index such as proline content,leaf-water content,plasma membrane permeability and ratio of K~+/Na~+.The results show that the transgenic wheatgrass plants accumulated more proline than CK under salt-stress conditions,which proved that P5CSF129A had functioned in transgenic wheatgrass plants and had increased their salt-tolerance.The results also show that transgenic wheatgrass plants had nurtured greater salinity tolerance than CK.According to physiological target in synthetically evaluation,the result is 97#19#66#Negatives.
【Fund】： 国家转基因植物研究与产业化专项资助(J-2002-B-008)
【CateGory Index】： S543.9
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【References】
Chinese Journal Full-text Database 10 Hits
1 LI Xiao-li1,2,3,LIU Guo-bin1,DANG Xiao-hu1(1.Research Center of Soil and Water Conservation and Ecological Environment,CAS,Yangling 712100,China;2.Institute of Chemistry and Chemical Engineering,Henan University of Technology,Zhengzhou 450001,China;3.Graduate University of Chinese Academy of Sciences,Beijing 100039,China);Effects of Varying Amounts of Oil Spillage on Grassland Community of Abandoned Cropland in Loess Hilly Region[J];Acta Agrestia Sinica;2008-02
2 WANG Yu-xiang1,2,WANG Tao2,ZHANG Bo1,2 (1.Key Laboratory of Grassland Resource and Ecology of Xinjiang,Xinjiang Agricultural University,Urumqi 830052,China; 2.State Key Laboratory for Agrobiotechnology,China Agricultural University,Beijing 100193,China);Research on Salt Tolerance of Alfalfa Transformed by rstB Gene[J];Acta Agrestia Sinica;2008-05
3 HAO Feng1,LIU Xiao-jing1*,MAO Juan2,YU Tie-feng1,ZHANG De-gang1(1.Pratacultural College,Gansu Agricultural University,Lanzhou,Gansu Province 730070,China;2.College of Agronomy,Gansu Agricultural University,Lanzhou,Gansu Province 730070,China);Construction of Antifreeze Protein Gene AFP Expression Vector and Transformation into Alfalfa Callus[J];Acta Agrestia Sinica;2009-06
4 LI Kong-chen,HUANGFU Jiang-yun,LU Xin-shi (Lab of Grassland Resources and Ecology,Beijing Forest University,Beijing 100083,China);Salt Tolerance Evaluation of 10 Varieties of Lolium multiflorum Lam. at Germination Period[J];Acta Agrestia Sinica;2010-03
5 XIA Fang-shan,DONG Qiu-li,DONG Kuan-hu(College of Animal Science and Technology,Shanxi Agricultural University,Taigu,Shanxi Province 030801,China);Effect of Salinity on Proline Metabolism of Saussurea runcinata Seedling[J];Acta Agrestia Sinica;2010-05
6 DONG Qiu-li,XIA Fang-shan,DONG Kuan-hu(College of Animal Science and Technology,Shanxi Agricultural University,Taigu,Shanxi Province 030801,China);Effects of NaCl and Na_2SO_4 Stress on the Content of Na~+,K~+ and Plasma Membrane H~+-ATPase Activity of Achnatherum splendens Seedling[J];Acta Agrestia Sinica;2010-06
7 DONG Jie1,2,DONG Qiu-li1,XIA Fang-shan1,GAO Hong-wen2,DONG Kuan-hu1 (1.College of Animal Science and Technology,Shanxi Agricultural University,Taigu,Shanxi Province 030801,China; 2.Institute of Animal Science,Chinese Academy of Agricultural Science,Beijing 100193,China);Effects of Different Saline-Alkali Grasslands on Ion Distribution of Helianthus tuberosus[J];Acta Agrestia Sinica;2012-03
8 ZHAO Rui-xue,ZHU Hui-sen,CHENG Yu-hong,DONG Kuan-hu (College of Animal Science and Technology,Shanxi Agricultural University,Taigu 030801,China);Research progress on proline and its biosynthesis enzymes in plant[J];Pratacultural Science;2008-02
9 MENG Lin1,SHANG Chun-yan1,2,MAO Pei-chun1,ZHANG Guo-fang1,AN Sha-zhou2 (1.Beijing Research and Development Center for Grasses and Environment,Beijing Academy of Agriculture and Forestry Sciences,Beijing 100097,China;2.College of Pratacultural and Environmental Science,Xinjiang Agricultural University,Key Laboratory of Grassland Resources and Ecology of Xinjiang,Urumqi 830052,China);A comprehensive evaluation of salt tolerance for germplasm and materials of Elytrigia at the seedling stage[J];Acta Prataculturae Sinica;2009-04
10 DONG Qiu-li,XIA Fang-shan,DONG Kuan-hu (College of Animal Science and Technology,Shanxi Agricultural University,Taigu 030801,China);Effects of NaCl stress on proline metabolism of Achnatherum splendens seedling[J];Acta Prataculturae Sinica;2010-05
【Citations】
Chinese Journal Full-text Database 8 Hits
1 Yu Zhuo; Sun Xiang ;Dai Junfeng; Guo Wen(Department of Desert Control , Inner Mongolia Forestry College, Hohehot 010019);Studies on the Salinity Tolerance in Seedling Stage Varietal Differences of Among Five Cultivaors of Truf Poa pratensis[J];ACTA AGRESTIA SINICA;1997-02
2 Wang Ping ;Zhou Tian(Institute of Grassland Science, Northeast Normal University, Changchun 130024);A Study of one Responses of the Seedling of Leymus chinensis and Ca2+ Action Under Different Treatments of NaCl[J];ACTA AGRESTIA SINICA;1998-01
3 Liu Chunhua Su Jiakai Huang Wenhui (Institute of Animal Science,Chinese Academy of Agricultural Sciences.Beijing,China.100094);Studies on the Physiological Indicators Evaluating the Salt Tolerance of Grasses[J];Acta Pratacultural Science;1993-01
4 Wang Ping; Yin Lijuan; Li Jiandong(National Laboratory of Grassland Ecological Engineering , The Northeast China Normai University, Changchun,Jilin 130024,P。R。China);Studines of Stresses of Neutral and Alkaline Salts on Aneurolepidium chinense Seedling[J];ACTA PRATACULTURAL SCIENCE;1994-02
5 Mao Cailiang Liu Youliang (Department of Agronomy);THE DISTRIBUTION OF Na~+ K~+AND SALT CONTENT TOLERATED BY LEAF IN BARLEY SEEDLING UNDER SALT STRESS[J];Journal of Nanjing Agricultural University;1990-03
6 Dong Yunzhou; Wang Xueyan (1 Biotechnology Research Center, CAAS, Beijing 100081; 2 Dept of Bio-engineering, Northeast Agricultural University, Harbin 150030 );Salt Tolerance and Genetic Analysis of Trans-Imt1-genie Tobacco[J];JOURNAL OF AGRICULTURAL BIOTECHNOLOGY;2000-01
7 Weng Senhong Nie Sumei Xu Henggang Gu Anlin(Grassland Research Institute of CAAS,Hohhot 010010);The Interrelation of K+/Na+ Content with Salt Tolerance of Grass Species in the Gramineae Family[J];JOURNAL OF SICHUAN GRASSLAND;1998-02
8 LIU You-liang, MAO Cai-liang, WANG Liang-ju (Nanjing Agricultural University, Nanjing);Recent Progress in Studies on Salinity Tolerance in Plants[J];Plant Physiology Communications;1987-04
【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 LIU Qi,WANG Hua-ke,LI Wen-da(1.School of Natural Resources and Environmental Engineering,Hefei University of Technology,Hefei,230009,China;2.School of Environmental Science,Anhui Teachers' Training University,Wuhu,241000,China);The Ecological Effect and global Chemical Recycle of the Heavy Metal Lead[J];Journal of Anhui Institute of Education;2005-06
2 ZHANG Lu1,2,ZHANG Qian2,YE Bao-xing1(1.College of Life Sciences,Shandong Agricultural University / State Key Laboratory of Crop Biology,Taian 271018,China;2.Institute of Agriculture Ecology and Engineering,College of Life Sciences of Zhejiang University,Hangzhou 310058,China);Effect of Arbuscular Mycorrhizal Fungi(AMF) on Growth of Medicago sativa L. under Salt Stress[J];Shandong Agricultural Sciences;2010-03
3 Yu Hongli~1; Wang Yan~2; Zhang Xiuying~1.(~1 Beijing Foreotry University Garden Department; ~2Forestry Graduate School of China Forestry Science Academe);Study on salt resistant capacity of four kinds of turf grasses species.[J];Anhui Forestry Science and Technology;2004-03
4 Shao Hongyu~1 Kong Guangchao~1 Qi Juncang~1 Ren Litong~2 Wang Ruiqing~(1,3) Cao Lianpu~1(1 Agriculture College of Shihezi University/ Key laboratory of Oasis Ecology Agriculture of Xinjiang Crops 832000;2 Chemical College of Shihezi University 832000;3 Institute of Science and Technology,Tarim University 843300);Advances in research on physiological and biochemical characteristics of salt tolerance in plant[J];Anhui Agricultural Science Bulletin;2006-09
5 CHI Chun-yu1 LI Yan1 LI Jing-yi1 ZHAO Li-jie1 DING Guo-hua2*(1 Acheng College,Harbin Normal University,Harbin,150301;2 School of Life Science and Technology,Harbin Normal University,Harbin,150025);Effect of spraying PP333 on membrane permeability and proline content in Featua fubra L. under salt stress[J];Anhui Agricultural Science Bulletin;2008-13
6 TIAN Shi-lin et al (Huanghuai University,Zhumadian,Henan 463000);Study on the Tolerance of Magnolia grandiflora linn to Waterlogging in Southern Henan[J];Journal of Anhui Agricultural Sciences;2006-15
7 ZHANG Yu-xia et al(Biological Department of Shenyang Agricultural University,Shenyang,Liaoning 100061);Comparative Analysis of Effect of Salt-alkaline Stress on Asparagus[J];Journal of Anhui Agricultural Sciences;2006-18
8 CUI Hui-mei et al(Department of Horticulture,Agricultural College,Shihezi University,Shihezi,Xinjiang 832003);Effect of Salt Stresses on Different Chinese Cabbage Seed Germination[J];Journal of Anhui Agricultural Sciences;2006-18
9 ZHOU He-fang et al(College of Horticulture,Northwest A & F University,Yangling,Shaanxi 712100);Mitigative Effect of Exogenous Ca~(2+) on Salt Stress of Muskmelon Seedlings[J];Journal of Anhui Agricultural Sciences;2007-09
10 XU Jian-ming et al (Department of Biology,Huaiyin Normal College,Huaian,Jiangsu 223300);Effects of Zinc Nutrition on Leaves Cell Membrane and Chlorophyll Fluorescence Characteristics of Rice Seedling under Salt Stress[J];Journal of Anhui Agricultural Sciences;2008-01
China Proceedings of conference Full-text Database 6 Hits
1 (CHEN Yuan-lin CHEN Zhen-de) ( College of food science and engineering, ouc., Qingdao shandong,266003 Qingdao academy of Agricultural science .Qingdao shandong ,266100);Progress of Rare earth Effects on Plant Resistance[A];[C];2006
2 ;Study on Evaluation,Screening and Utilization of Forage Germplasm Resources[A];[C];1996
3 DONG Li-hua LAN Jian YAO Ai-xing (pratuacultural Science Institute of Ningxia University, Yinchuan 750021, China);Review on Salinity and Drought Tolerance of Turfgrass[A];[C];2004
4 LI Zhengyan,XU Zhiming~* (Institute of Animal Husbandry and Veterinary,Agricultural Academy of Anhui Province,Hefei 230031,China);The Thermotolerance Research of Grass[A];[C];2009
5 WANG Yong~1,XU Chun-bo~2,WANG Hua~1 (1.College of Ecology and Environmental Science,Inner Mongolia Agricultural University,Huhhot 010019,China; 2.Grassland Research Institute of Chinese Academy of Agricultural Science,Huhhot 010010,China);Study on the Salt-tolerance Physiological characteristic of Psathyrostachys juncea. cv. Mengnong No.4[A];[C];2009
6 ZHANG Jun-lian~(1、2) LI Xue-cai~1 WANG Li~3 WANG Di~(1,2) HUA NG Peng~1 1.Agronomic College of Gansu Agricultural University,Gansu.Lanzhou 730070,China; 2.Gansu Key Laboratory of Crop Genetic & Germplasm Enhancement,Lanzhou 730070,China; 3.Life Sciences and Technology College of Gansu Agricultural University,Gansu,Lanzhou 730070,China;The Effects of salt on physiological indexes of different varieties potato plantlets[A];[C];2006
【Co-references】
Chinese Journal Full-text Database 10 Hits
1 YANG Ai-fang 1,ZHAO Shi-lan 1,ZHU Li-ping 1,ZHAI Shu-mei 1, ZHANG Ju-ren 1,HUANG Yue 2,ZHAI Xiao-ling 2 (1 Life Science School, Shandong University, Jinan 250100, China;2 Qingdao Agricultural Institute, Qingdao 266100, China);The creation of new sugar beet germplasm tolerant to salt by genetic transformation[J];Shandong Agricultural Sciences;2002-02
2 SHANG Wei1,ZHANG Yan-jun1,WEI Hai-zhong1,KONG Xiao-min2,JIANG Fei2,LIU Bao-shen1(1.State Key Laboratory of Crop Biology/ Agronomy College of Shandong Agricultural University,Taian 271018,China; 2.Jining Institute of Agricultural Sciences,Jining 272031,China);SSR Linkage Map Construction and QTL Identification for Resistance Gene of MRDV in Maize[J];Shandong Agricultural Sciences;2011-12
3 Wang Fenghua Li Guangyuan Wang Yina(College of Forestry,Henan University of Science and Technology,Luoyang 471003);Influence of Hormone on in Vitro Culture of Under Hypocotyls of Cabbage(Brassica oleracea L.)[J];Anhui Agricultural Science Bulletin;2007-15
4 Lei Cheng et al (Plant Tissue Culture Center Nanyang Agricultural School,Nanyang,Henan 473000);Study on Tissue Culture and Rapid Propagation Techniques of Gigas Type of Black Locust[J];Journal of Anhui Agricultural Sciences;2003-04
5 HAN Xiao-guang et al (Biology Department of Langfang Normal College,Langfang,Hebei 065000);Study on Multiple Shoot Induction and Plantlet Regeneration of Kale[J];Journal of Anhui Agricultural Sciences;2006-03
6 LIU Guo-hua (Department of Life Science,Chongqing University of Arts and Sciences, Chongqing 402168);Research Progress in Mechanism of Plant Resistance to Salt Stress[J];Journal of Anhui Agricultural Sciences;2006-23
7 WANG Liang et al (Life Science and Engineering Department,Dalian University of Technology,Dalian,Liaoning 116023);Transformation of Populus×euramericana 'Neva' with Betaine-aldehyde Dehydrogenase Gene[J];Journal of Anhui Agricultural Sciences;2007-04
8 ZHOU He-fang et al(College of Horticulture,Northwest A & F University,Yangling,Shaanxi 712100);Mitigative Effect of Exogenous Ca~(2+) on Salt Stress of Muskmelon Seedlings[J];Journal of Anhui Agricultural Sciences;2007-09
9 WANG Zheng-hong et al(College of Agronomy,Henan University of Science and Technology,Luoyang,Henan 471003);Effect of Exogenous Nitric Oxide on Nitric Metabolites in Maize Leaves under Salt Stress[J];Journal of Anhui Agricultural Sciences;2007-17
10 CUI Cheng-de et al (China Academy of Chinese Medicine Sciences, Beijing 100700);Comparision of Genefinder with EB in a Quantitative Analysis of a DNA Band[J];Journal of Anhui Agricultural Sciences;2008-02
【Secondary References】
Chinese Journal Full-text Database 10 Hits
1 LIU Yun et al(Key Laboratory of Microorganism and Genetic Engineering of Shenzhen City,College of Life Science,Shenzhen University,Shenzhen,Guangdong 518060);Research Advances on the Molecular Mechanism of Plant Salt-tolerance[J];Journal of Anhui Agricultural Sciences;2010-12
2 HAN Yang(College of Life Sciences,Shandong University,Jinan,Shandong 250100);Toxicological Effects on Setcreasea purpurea Growth with Gaseous Dimethylbenzene[J];Northern Horticulture;2010-07
3 WANG Ai-xia1;ZHANG Min1,2;FANG Yan-ming1;JIA Heng1;ZHOU Nan-nan1.1 College of Forest Resources and Environment,Nanjing Forestry University,210037,P.R.China;2 Jiangsu Academy of Forestry,Nanjing,211153,P.R.China.;Responses of street trees to heavy metal pollution and their functional-type grouping[J];Journal of Beijing Forestry University;2010-02
4 HUANG Jin-wen,WU Wen-xiang,CHEN Dong-mei,ZHENG Hong-yan,LIN Wen-xiong(Institute of Agroecology,Fujian Agriculture and Forestry University,Fuzhou 350002,China);Analysis of Different Expression of Genes in Zoysia Matrella Exposed to High Temperature Treatment[J];Acta Agrestia Sinica;2009-04
5 HAO Feng1,LIU Xiao-jing1*,MAO Juan2,YU Tie-feng1,ZHANG De-gang1(1.Pratacultural College,Gansu Agricultural University,Lanzhou,Gansu Province 730070,China;2.College of Agronomy,Gansu Agricultural University,Lanzhou,Gansu Province 730070,China);Construction of Antifreeze Protein Gene AFP Expression Vector and Transformation into Alfalfa Callus[J];Acta Agrestia Sinica;2009-06
6 WANG Yu-xiang1,2,ZHANG Bo1,2,WANG Tao2*(1.Key Laboratory of Grassland Resource and Ecology of Xinjiang,Xinjiang Agricultural University,Urumqi 830052;2.State Key Laboratory for Agrobiotechnology,China Agricultural University;Beijing 100193;China);Identification of Salt Tolerance in Transgenic Alfalfa of the rstB[J];Acta Agrestia Sinica;2009-06
7 XIA Fang-shan,DONG Qiu-li,DONG Kuan-hu(College of Animal Science and Technology,Shanxi Agricultural University,Taigu,Shanxi Province 030801,China);Effect of Salinity on Proline Metabolism of Saussurea runcinata Seedling[J];Acta Agrestia Sinica;2010-05
8 WANG Kang1,2,LIU Yan-xiang1,DONG Jie3,ZHOU He2,DONG Kuan-hu1(1.College of Animal Science and Technology,Shanxi Agricultural University,Taigu,Shanxi Province 030801,China;2.Institute of Grassland Science, China Agriculture University,Beijing 100193,China;3.Institute of animal science,CAAS,Beijing 100193,China);Effects of NaCl Stress on Proline Accumulation and Metabolic Pathways of Chicory(Cichorium intybus L.) Seedlings[J];Acta Agrestia Sinica;2011-01
9 LI Kong-chen,LU Xin-shi,WANG Tie-mei*(Beijing Foresty University,Lab of Rangeland Resources and Ecology,Beijing,100083,China);Effects of Different Nitrogen Fertilizer Rates on Nitrogen Absorption by Ryegrass(Lolium muliiflorum) under Salt Stress[J];Acta Agrestia Sinica;2011-03
10 ZHU Hui-sen1,LIU Yan-xiang1,DONG Kuan-hu1,YANG Wu-de2(1.College of Animal Science and Technology,Shanxi Agricultural University,Taigu,Shanxi Province 030801,China; 2.College of Agronomy,Shanxi Agricultural University,Taigu,Shanxi Province 030801,China);Effect of PEG Stress on Key Enzymes Involved in Proline Metabolism of Medicago sativa cv.Pianguan[J];Acta Agrestia Sinica;2011-06
China Proceedings of conference Full-text Database 3 Hits
1 MA Wen-hui~1 ZHANG Qian~(1,2) SHANG Ai-qin~(1,3) ZHAO Liang-jun~1 (1 Department of Ornamental Horticulture and landscape Architecture,China Agricultural University,Beijing 100093; 2 Flower Research Institute,Yunnan Academy of Agriculture Science,Kunming 650205; 3 College of Horticulture,Hebei Agricultural University,Baoding 071001);Studies on Transformation of Euonymus fortunei with P5 CS Gene Cloned from Euonymus japonicus‘Cu Zhi’ via Agrobacterium tumefaciens[A];[C];2009
2 YANG Hong-xin,MAO Pei-chun,Meng Lin~* Beijing Research and Development Center for Grasses and Environment,Beijing Academy of Agriculture and Forestry Sciences,Beijing 100097,China;Assessment of Drought Resistance for 10 Species ofElytrigia Desv.at the Seedling Stage[A];[C];2010
3 LI Hong-chao;YANG Fuyu;ZHANG Yun-wei;Key Laboratory of Beijing,Institute of Grassland Science,China Agricultural University;;Recent Advances in Saline-alkali Tolerance of Bioenergy Grass[A];[C];2014
【Secondary Citations】
Chinese Journal Full-text Database 10 Hits
1 Shu Wenhua; Geng Huazhu (Animal science institute,Chinese Academy of Agricultural Science, Beijing, 100094,China) Sun Yongru (Genetic institute, Academia sinica, Beijing, 100101,China);PROTOPLAST CULTURE AND PLANT REGENERATION FROM MESOPHYLL OF ALFALFA (MEDICAGO SATIVA L.)[J];Acta Agrestia Sinica;1994-01
2 Chen Yan; Li Cong; Su Jiakai; Huang Wenhui (Animal Science Institute of CAAS, Beijing 100094) Lu Deyang; Zhao Guangyu (Genetic Institute of Academia Sinica, Beijing 100012);Agrobacterium rhizogenes Mediated Gene Transfer of the Forage Legume Lotus Corniculatus L[J];Acta Agrestia Sinica;1996-02
3 GUO Zhen-fei,LU Shao-yun (Laboratory for Turfgrass Science,College of Life Science,South China Agricultural University,Guangzhou 510642,China);Application of Genetic Engineering in Turfgrass Breeding[J];Acta Agrestia Sinica;2002-03
4 LIU Ling long, WU Yan qi, ZHANG Xin quan (Department of Pratacultural Science, Sichuan Agricultural University, Ya’an 625014, China);The application of apomixis to forage[J];Pratacultural Science;2000-06
5 Yin Lijuan Zhu Ling (Institute of Grassland Science,Northeast Normal Nniversity,Changchun,Jilin Province,China);Stress Tolerance Study of Leymus chinensis Seedling to Saline-Alkali[J];Acta Prataculturae Sinica;1990-01
6 Yin Lijuan Shi Decheng (Grassland Research Institute,Northeast Normal University,Changchun);An Analysis of a Main Salt of Alkalizing Meadow Steppe Na_2CO_3—Harming Factors to Leymus Chinensis[J];Acta Pratacultural Science;1993-01
7 John Frame (Ard Choille, 13 St Vincent Crescent, Ayr KA7 4QW, Scotland, UK);Advances in Forage Legume Technology[J];Acta Pratacultural Science;2001-04
8 Guo Shaoehuan (Department of Biology, Nei Monggol Teacher's University)Liu Lingyu (Department of Biology, Baotou Teacher's College);CHANGES OF PROLINE CONTENT AT LOW TEMPERATURES IN RELATION TO COLO RESISTANCE[J];;1984-01
9 LIU Wei-hua 1,2,LI Wen-xiong 2,HU Shang-lian 2,XU Xiang-ling 1,LI Ji-lin 1 (1 Department of Biology,Harbin Normal University,Harbin 150080,China;2 Department of Agronomy,Northeast Agricultural University,Harbin 150030,China);Study on influncing factors of tissue culture and biolistic bombardment in wheat[J];Acta Botanica Boreali-occidentalia Sinica;2002-03
10 LIU Gongshe*,ZHANG Weidongte of Botany,Chinese Academy of Sciences,Beijing 100093,China);Advances of molecular biology and biotechnology used in gramineal forage species[J];Acta Botanica Boreali-occidentalia Sinica;2003-04
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