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32篇 您的检索式:作者名="Youzhi Ma"
    题名 作者 年代 出处 被引量
1Engineering Herbicide-Resistant Rice Plants through CRISPR/Cas9-Mediated Homologous Recombination of Acetolactate Synthase显示文摘Sun, Yongwei Zhang, Xin Wu, Chuanyin He, Yubing Ma, Youzhi Hou, Han Guo, Xiuping Du, Wenming Zhao, Yunde Xia, Lanqin 2016Molecular Plant2016,9,4:94
2Improvement of wheat drought and salt tolerance by expression of a stress- inducible transcription factorGmDREB of soybean (Glycinemax)显示文摘Under stress conditions such as droughthigh-salinity and low-temperature, the transcription factorof DREB (dehydration responsive element binding proteins)improved efficiently stress resistance by regulating the ex-pression of its downstream genes with various environmentastress resistance in plants. GmDREB gene (GenBank Acces-sion No. AF514908) encoding a stress-inducible transcriptionfactor was cloned by screening a cDNA library of Glycinemax cv. Jinong 27 with yeast one-hybrid method. GmDREBgene was 910 bp in length and encoded 174 amino acids con-taining a conserved AP2/EREBP DNA-binding domain of 58amino acids. Two conserved functional amino acids, valineand glutamic acid, were located on the 14th and the 19thamino acid residues in the conserved structural domain. Analkaline amino acid region (KKR) related to a nuclear local-ization signal was at the N-terminal, while an acidic aminoacid region (DDD) related to trans-activation was at theC-terminal. Plant expression vectors were constructed andtransformed into wheat by bombardment. In total, 13 trans-genic plants with Ubi::GmDREB and 11 transgenic plantswith rd29A::GmDREB were identified from 103 regenerationplants by molecular analysis. The drought and salt tolerancesof T1 transgenic lines with Ubi::GmDREB orrd29A::GmDREB were demonstrated to be improved ascompared to wild type. The result also suggested that bothUbiquitin and rd29A promoters could effectively drive theexpression of the GmDREB gene and enhance drought andsalt tolerance of T1 plants.GAO Shiqing XU Huijun CHENG Xianguo CHEN Ming XU Zhaoshi LI Liancheng YE Xingguo DU Lipu HAO Xiaoyan MA Youzhi 2005Chinese Science Bulletin2005,50,23:30
3Overexpression of GmDREB1 improves salt tolerance in transgenic wheat and leaf protein response to high salinity显示文摘The transcription factor dehydration-responsive element binding protein(DREB)is able to improve tolerance to abiotic stress in plants by regulating the expression of downstream genes involved in environmental stress resistance.The objectives of this study were to evaluate the salt tolerance of GmDREB1 transgenic wheat(Triticum aestivum L.)and to evaluate its physiological and protein responses to salt stress.Compared with the wild type,the transgenic lines overexpressing GmDREB1 showed longer coleoptiles and radicles and a greater radicle number at the germination stage,as well as greater root length,fresh weight,and tiller number per plant at the seedling stage.The yield-related traits of transgenic lines were also improved compared with the wild type,indicating enhanced salt tolerance in transgenic lines overexpressing GmDREB1.Proteomics analysis revealed that osmotic-and oxidative-stressrelated proteins were up-regulated in transgenic wheat leaves under salt stress conditions.Transgenic wheat had higher levels of proline and betaine and lower levels of malondialdehyde and relative electrolyte leakage than the wild type.These results suggest that GmDREB1 regulates the expression of osmotic-and oxidative-stress-related proteins that reduce the occurrence of cell injury caused by high salinity,thus improving the salt tolerance of transgenic wheat.Qiyan Jiang Zheng Hu Hui Zhang Youzhi Ma 2014The Crop Journal2014,2,Z1:11
4Sodium Stress in the Halophyte Thellungiella halophila and Transcriptional Changes in a thsos1-RNA Interference Line显示文摘The plasma membrane Na^+/H^+-antiporter salt overly sensitive1(SOS1)from the halophytic Arabidopsis-relative Thel-lungiella halophila(ThSOS1)shows conserved sequence and domain structure with the orthologous genes fromArabidopsis thaliana and other plants.When expression of ThSOS1 was reduced by RNA interference(RNAi),pronouncedcharacteristics of salt-sensitivity were observed.We were interested in monitoring altered transcriptional responsesbetween Thellungiella wild type and thsosl-4,a representative RNAi line with particular emphasis on root responses to saltstress at 350 mmol/L NaCl,a concentration that is only moderately stressful for mature wild type plants.Transcript profilingrevealed several functional categories of genes that were differently affected in wild-type and RNAi plants.Down-regulationof SOS1 resulted in different gene expression even in the absence of stress.The pattern of gene induction in the RNAi plantunder salt stress was similar to that of glycophytic Arabidopsis rather than that of wild type Thellungiella.The RNAi plantsfailed to down-regulate functions that are normally reduced in wild type Thellungiella upon stress and did not up-regulatefunctions that characterize the Thellungiella salt stress response.Metabolite changes observed in wild type Thellungiellaafter salt stress were less pronounced or absent in RNAi plants.Transcript and metabolite behavior suggested SOS1functions including but also extending its established function as a sodium transporter.The down-regulation of ThSOS1converted the halophyte Thellungiella into a salt-sensitive plant.Dong-Ha Oh Qingqiu Gong Alex Ulanov Quan Zhang Youzhi Li Wenying Ma Dae-Jin Yun Ray A. Bressan Hans J. Bohnert 2007Journal of Integrative Plant Biology2007,49,10:9
5Expression of an(E)-β-farnesene synthase gene from Asian peppermint in tobacco affected aphid infestation显示文摘Aphids are major agricultural pests that cause significant yield losses in crop plants each year.(E)-β-farnesene(EβF) is the main or only component of an alarm pheromone involved in chemical communication within aphid species and particularly in the avoidance of predation. EβF also occurs in the essential oil of some plant species, and is catalyzed by EβF synthase. By using oligonucleotide primers designed from the known sequence of an EβF synthase gene from black peppermint(Mentha × piperita), two cDNA sequences, MaβFS1 and MaβFS2, were isolated from Asian peppermint(Mentha asiatica). Expression pattern analysis showed that the MaβFS1 gene exhibited higher expression in flowers than in roots, stems and leaves at the transcriptional level. Overexpression of MaβFS1 in tobacco plants resulted in emission of pure EβF ranging from 2.62 to 4.85 ng d-1g-1of fresh tissue. Tritrophic interactions involving peach aphids(Myzus persicae), and predatory lacewing(Chrysopa septempunctata) larvae demonstrated that transgenic tobacco expressing MaβFS1 had lower aphid infestation. This result suggested that the EβF synthase gene from Asian peppermint could be a good candidate for genetic engineering of agriculturally important crop plants.Xiudao Yu Yongjun Zhang Youzhi Ma Zhaoshi Xu Genping Wang Lanqin Xia 2013The Crop Journal2013,1,1:6
6Pyramiding favorable alleles in an elite wheatvariety in one generation by CRISPR-Cas9-mediated multiplex gene editing显示文摘Dear Editor,Common wheat(Triticum aestivum,2n=6x=42,AABBDD)is amajor staple crop consumed by more than 30%of the world’spopulation.It is the main source of cereal-based processed prod-ucts,such as bread,cookies,pasta,and noodles.Althoughwheat production increased by 10-fold following the Green revo-lution and maker-assisted breeding over the past decades,it isstill facing unprecedented challenges in the context of globalclimate changes,growing world population,decreased farm-lands,as well as water shortages in arid and semi-arid lands.Meanwhile,the functional redundancy of genes in hexaploidywheat makes a forward genetics approach to select a desiredphenotype,especially for pyramiding of several agronomicallyimportant traits in a modern variety,very time-consuming and in some cases,impossible because of gene linkage or genedrag.Jinman Luo Shaoya Li Jiajing Xu Lei Yan Youzhi Ma Lanqin Xia 2021Molecular Plant2021,14,6:6
7Multiplex precision gene editing by a surrogate prime editor in rice显示文摘Dear Editor,Development of a multiplex precision gene editing system is highly desirable for pyramiding beneficial alleles in crop improve-ment.Prime editing is a newly developed genome-editing tool that can precisely enable the installation of all 12 nucleotide sub-stitutions,short insertions,and deletions without exogenous DNA donor repair template and double-strand breaks(Anzalone et al.,2019).Among the prime editing systems,prime editor 3(PE3),which consists of a prime editing guide RNA(pegRNA)and an additional nicking single guide RNA(sgRNA)to nick the non-edited strand,enhances editing efficiency.Huiyuan Li Ziwei Zhu Shaoya Li Jingying Li Lei Yan Chen Zhang Youzhi Ma Lanqin Xia 2022Molecular Plant2022,15,7:4
8RNA-seq analysis of unintended effects in transgenic wheat overexpressing the transcription factor GmDREB1显示文摘The engineering of plants with enhanced tolerance to abiotic stresses typically involves complex multigene networks and may therefore have a greater potential to introduce unintended effects than the genetic modification for simple monogenic traits. For this reason, it is essential to study the unintended effects in transgenic plants engineered for stress tolerance. We selected drought-and salt-tolerant transgenic wheat overexpressing the transcription factor, GmDREB1, to investigate unintended pleiotropic effects using RNA-seq analysis. We compared the transcriptome alteration of transgenic plants with that of wild-type plants subjected to salt stress as a control. We found that GmDREB1 overexpression had a minimal impact on gene expression under normal conditions.GmDREB1 overexpression resulted in transcriptional reprogramming of the salt response,but many of the genes with differential expression are known to mitigate salt stress and contribute incrementally to the enhanced stress tolerance of transgenic wheat. GmDREB1 overexpression did not activate unintended gene networks with respect to gene expression in the roots of transgenic wheat. This work is important for establishing a method of detecting unintended effects of genetic engineering and the safety of such traits with the development of marketable transgenic crops in the near future.Qiyan Jiang Fengjuan Niu Xianjun Sun Zheng Hu Xinhai Li Youzhi Ma Hui Zhang 2017The Crop Journal2017,5,3:3
9Modeling of joints and interfaces using the disturbed-stated concept 显示文摘DESAI C S MA Youzhi 1992International Journal for Numerical and Analytical Methods in Geomechanics1992,16,1:1
10Application of Geosynthetic Clay Lines to Landfills 显示文摘Shi Youzhi Ma Shidong 2002Journal of Huaqiao University ( Nature Science)2002,23,2:1
11Application of Geosyn the ticclay Lines to Landfills 显示文摘Shi Youzhi Ma Shidong 2002Joumal of University(Nature Science)2002,23,2:1
12A virus-derived siRNA activates plant immunity by interfering with ROS scavenging显示文摘Virus-derived small interference RNAs(vsiRNAs)not only suppress virus infection in plants via induction of RNA silencing but also enhance virus infection by regulating host defensive gene expression.However,the underlying mechanisms that control vsiRNA-mediated host immunity or susceptibility remain largely unknown.In this study,we generated several transgenic wheat lines using four artificial microRNA expression vectors carrying vsiRNAs from Wheat yellow mosaic virus(WYMV)RNA1.Laboratory and field tests showed that two transgenic wheat lines expressing amiRNAI were highly resistant to WYMV infection.Further analyses showed that vsiRNAI could modulate the expression of a wheat thioredoxin-like gene(TaAAEDI),which encodes a negative regulator of reactive oxygen species(ROS)production in the chloroplast.The function of TaAAEDI in ROS scavenging could be suppressed by vsiRNAI in a dose-dependent manner.Furthermore,transgenic expression of amiRNAI in wheat resulted in broad-spectrum disease resistance to Chinese wheat mosaic virus,Barley stripe mosaic virus,and Puccinia striiformis f.sp.tritici infection,suggesting that vsiRNAI is involved in wheat immunity via ROS signaling.Collectively,these findings reveal a previously unidentified mechanism underlying the arms race between viruses and plants.Peng Liu Xiaoxiang Zhang Fan Zhang Miaoze Xu Zhuangxin Ye Ke Wang Shuang Liu Xiaolei Han Ye Cheng Kaili Zhong Tianye Zhang Linzhi Li Youzhi Ma Ming Chen Jianping Chen Jian Yang 2021Molecular Plant2021,14,7:1
13Modeling of joints and interfaces using the disturbed-stated concept 显示文摘Desai C S Ma Youzhi 1992International Journal for Numerical and Analytical Methods in Geomechanic1992,16,1:1
14Modeling of Joints and interfaces using disturbed state concept显示文摘Desai C S Youzhi Ma 1992International Journal for Numerical and Analytical Methods in Geomechanics1992,16,6:1
15(E)-β-Farnesene synthase genes affect aphid (Myzus persicae) infestation in tobacco (Nicotiana tabacum)显示文摘Xiudao Yu Huw Jones Youzhi Ma Genping Wang Zhaoshi Xu Baoming Zhang Yongjun Zhang Guangwei Ren John Pickett Lanqin Xia 2012Functional & Integrative Genomics2012,,1:1
16Modeling of joints and interface using the disturbed state concept显示文摘Desai C S Ma Youzhi 1992Journal for Numerical and Analysis Methods in Geomechanics1992,16,62:1
17Modeling of Joints and interfaces using disturbed state concept显示文摘Desai C S Youzhi Ma 1992International Journal for Numerical and Analytical Methods in Geome-chanics1992,,:1
18The soybean PLATZ transcription factor GmPLATZ17 suppresses drought tolerance by interfering with stress-associated gene regulation of GmDREB5显示文摘Plant AT-rich sequence and zinc binding(PLATZ)transcription factors are a class of plant specific zincdependent DNA-binding proteins that function in abiotic stress response and plant development.In this study,31 GmPLATZ genes were identified in soybean.GmPLATZ17 was down-regulated by drought and exogenous abscisic acid.Transgenic Arabidopsis and soybean hairy roots overexpressing GmPLATZ17 showed drought sensitivity and inhibition of stress-associated gene transcription.In contrast,suppressed expression of GmPLATZ17 led to increased drought tolerance in transgenic soybean hairy roots.The GmPLATZ17 protein was verified to interact physically with the GmDREB5 transcription factor,and overexpression of GmDREB5 increased drought tolerance in soybean hairy roots.Interaction of GmPLATZ17 with GmDREB5 was shown to interfere with the DRE-binding activity of GmDREB5,suppressing downstream stress-associated gene expression.These results show that GmPLATZ17 inhibits drought tolerance by interacting with GmDREB5.This study sheds light on PLATZ transcription factors and the function of GmPLATZ17 in regulating drought sensitivity.Juanying Zhao Lei Zheng Jitong Wei Yixuan Wang Jun Chen Yongbin Zhou Ming Chen Fengzhi Wang Youzhi Ma Zhao-Shi Xu 2022The Crop Journal2022,10,4:1
19Modeling of joints and interfaces using disturbed state concept 显示文摘Desai C S Youzhi Ma 1992International Journal for Numerical and Analytical Methods in Geomechanics1992,16,6:1
20Isolation and characterization of Akabane virus Ib substrain and its pathogenesis in sulking mice显示文摘Dear Editor,Akabane disease is an arthropod-borne viral disease caused by the Akabane virus(AKAV)that can affect cattle,sheep,and goats.Inapparent infections in adults can lead months later to abortions,stillbirths,congenital defects,and death in newborns(Kurogi et al.,1976).Wild ruminants can also be affected,but abnormalities of the offspring in these species have not been reported.One report suggests that this virus can also cause clinical signs in pigs(Yanase et al.,2018).Xiaohui Zan Shirong Wang Tianqi Zhang Ying Li Chunge Zhang Cun Fu Jialei Wang Youzhi Wu Yanhua Ma Zhifei Li Yan Wang Hao Wang Yuhai Bi Wei Wang 2023Virologica Sinica2023,38,6:0
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