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17篇 您的检索式:作者名="Xiaoping Gou"
    题名 作者 年代 出处 被引量
1Somatic Embryogenesis Receptor Kinases Control Root Development Mainly via Brassinosteroid-Independent Actions in Arabidopsis thaliana显示文摘Brassinosteroids(BRs),a group of plant steroidal hormones,play critical roles in many aspects of plant growth and development.Previous studies showed that BRI1-mediated BR signaling regulates cell division and differentiation during Arabidopsis root development via interplaying with auxin and other phytohormones.Arabidopsis somatic embryogenesis receptor-like kinases(SERKs),as co-receptors of BRI1,were found to play a fundamental role in an early activation step of BR signaling pathway.Here we report a novel function of SERKs in regulating Arabidopsis root development.Genetic analyses indicated that SERKs control root growth mainly via a BR-independent pathway.Although BR signaling pathway is completely disrupted in the serk1 bak1 bkk1 triple mutant,the root growth of the triple mutant is much severely damaged than the BR deficiency or signaling null mutants.More detailed analyses indicated that the triple mutant exhibited drastically reduced expression of a number of genes critical to polar auxin transport,cell cycle,endodermis development and root meristem differentiation,which were not observed in null BR biosynthesis mutant cpd and null BR signaling mutant bri1-701.Junbo Du Hongju Yin Shasha Zhang Zhuoyun Wei Baolin Zhao Jinghua Zhang Xiaoping Gou Honghui Lin Jia Li 2012Journal of Integrative Plant Biology2012,54,6:22
2RGF1 INSENSITIVE 1 to 5, a group of LRR receptor-like kinases, are essential for the perception of root meristem growth factor I in Arabidopsis thaliana显示文摘RGF1,分泌的肽荷尔蒙,戏在 Arabidopsis 在根分裂组织开发给角色调音。以前的研究显示功能的 RGF1 需要是在由 tyrosylprotein sulfotransferase 的酷氨酸残余的 sulfated 并且 RGF1 主要经由二个下游的抄写因素调整根分裂组织活动,过多 1 (PLT1 ) 并且 PLT2。然而,细胞外的 RGF1 怎么被一个植物房间察觉,是不清楚的。用基因途径,我们发现了充满白氨酸的重复的 clade 像受体的 kinases,指定了为 RGF1 感觉迟钝 1 (RGI1 ) 到 RGI5,用作 RGF1 的受体。二独立 rgi1 rgi2 rgi3 rgi4 rgi5 五倍的异种与分裂组织的一种小尺寸显示一致的短主要的根显型。四倍的异种显示出的 rgi1 rgi2 rgi3 rgi4 到 RGF1 的显著地减少的敏感,和五倍的异种对 RGF1 完全感觉迟钝。PLT1 和 PLT2 的表示在五倍的异种是几乎无法发现的。一个 RGI2 倡导者极大地在五倍的异种驾驶的 PLT2 的宫外的表示救了它的根分裂组织缺点。RGI 之一, RGI1,随后详细生物化学地被分析。在 vitro 点弄污和下拉,分析显示 RGI1 能身体上与 RGF1 交往。RGF1 的外长的申请能快速并且同时导致 RGI1 的 phosphorylation 和 ubiquitination,显示 RGI1 能察觉并且 transduce RGF1 肽信号。然而,激活的 RGI1 多半很快被翻。这些结果表明那 RGI,充当 RGF1 的受体,在在 Arabidopsis thaliana 的 RGF1-PLT-mediated 根分裂组织开发的戏必需品角色。Yang Ou Xiaoting Lu Quaner Zi Qingqing Xun Jingjie Zhang Yujun Wu Hongyong Shi Zhuoyun Wei Baolin Zhao Xiaoyue Zhang Kai He Xiaoping Gou Chuanyou Li Jia Li 2016Cell Research2016,26,6:18
3Genome-Wide Expression Pattern Analyses of the Arabidopsis Leucine-Rich Repeat Receptor-Like Kinases显示文摘像受体的蛋白质 kinases (RLK ) 是在房间房间和房间环境通讯起关键作用的 transmembrane 蛋白质的一个大组。基于细胞外的领域结构, RLK 被分类进超过 21 个亚科,充满白氨酸的重复 RLK (LRR-RLKs ) 在象 Arabidopsis 和米饭那样的植物在之中属于最大的亚科。在 Arabidopsis,有近似 223LRR-RLKs,但是哪个中的仅仅大约 60 个机能上地迄今为止被描述了。为了系统地在调整调查 LRR-RLKs 的 theroles,种生长,开发,和压力改编,我们产生了 promoter::GUS 为在 Arabidopsis 的所有 223 LRR-RLK 基因的转基因的植物并且在各种各样的发展舞台分析了他们的详细表达式模式。Theresults 提供 forfunctionally 阐明的珍贵资源这个大、必要的发信号的蛋白质亚科。Yunzhe Wu Qingqing Xun Yi Guo Jinghua Zhang Kaili Cheng Tao Shi Kai He Suiwen Hou Xiaoping Gou Jia Li 2016Molecular Plant2016,9,2:13
4SERK Receptor-like Kinases Control Division Patterns of Vascular Precursors and Ground Tissue Stem Cells during Embryo Development in Arabidopsis显示文摘During embryo development, the vascular precursors and ground tissue stem cells divide to renew them-selves and produce the vascular tissue, endodermal cells, and cortical cells. However, the molecular mech-anisms regulating division of these stem cells have remained largely elusive. In this study, we show that loss of function of SOMATIC EMBRYOGENESIS RECEPTOR-UKE KINASE (SERK) genes results in aberrant em-bryo development. Fewer cortical, endodermal, and vascular cells are generated in the embryos of serk1 serk2bak1 triple mutants. WUSCHEL-RELATED HOMBOBOX5 (WOXS) is ectopically expressed in vascular cells of serkl serk2 bak1 embryos. The first transverse division of vascular precursors in mid-globular em-bryos and second asymmetric division of ground tissue stem cells in early-heart embryos are abnormally altered to a longitudinal division. The embryo defects can be partially rescued by constitutively activated mitogen-activated protein kinase (MAPK) kinase kinase YODA (YDA) and MAPK kinase MKK5. Taken together, our results reveal that SERK-mediated signals regulate division patterns of vascular precursors and ground tissue stem cells, likely via the YDA-MKK4/5 cascade, during embryo development.Huiqiang Li Zeping Cai Xiaojuan Wang Meizhen Li Yanwei Cui Nan Cui Fei Yang Mingsong Zhu Junxiang Zhao Wenbin Du Kai He Jing Yi Frans E.Tax Suiwen Hou Jia Li Xiaoping Gou 2019Molecular Plant2019,12,7:7
5Asymmetric distribution of cytokinins determines root hydrotropism in Arabidopsis thaliana显示文摘The phenomenon of plant root tips sensing moisture gradient in soil and growing towards higher water potential is designated as root hydrotropism,which is critical for plants to survive when water is a limited factor.Molecular mechanisms regulating such a fundamental process,however,are largely unknown.Here we report our identification that cytokinins are key signaling molecules directing root growth orientation in a hydrostimulation(moisture gradient)condition.Lower water potential side of the root tip shows more cytokinin response relative to the higher water potential side.Consequently,two cytokinin downstream type-A response regulators,ARR16 and ARR17,were found to be up-regulated at the lower water potential side,causing increased cell division in the meristem zone,which allows the root to bend towards higher water potential side.Genetic analyses indicated that various cytokinin biosynthesis and signaling mutants,including the arr16 arr17 double mutant,are significantly less responsive to hydrostimulation.Consistently,treatments with chemical inhibitors interfering with either cytokinin biosynthesis or cell division completely abolished root hydrotropic response.Asymmetrically induced expression of ARR16 or ARR17 effectively led to root bending in both wild-type and miz1,a previously known hydrotropism-defective mutant.These data demonstrate that asymmetric cytokinin distribution is a primary determinant governing root hydrotropism.Jinke Chang Xiaopeng Li Weihao Fu Jiawen Wang Yueyuan Yong Hongyong Shi Zhaojun Ding Hong Kui Xiaoping Gou Kai He Jia Li 2019Cell Research2019,29,12:4
6RGF1-RGI1,a Peptide-Receptor Complex,Regulates Arabidopsis Root Meristem Development via a MAPK Signaling Cascade显示文摘Root growth is maintained by the continuous division of cells in the apical meristem.ROOT MERISTEM GROWTH FACTOR 1(RGF1)is a critical peptide hormone regulating root stem cell niche maintenance.Previous studies discovered that five closely related leucine-rich repeat receptor-like protein kinases(LRRRLKs),named RGF1 INSENSITIVES(RGIs)or RGF1 RECEPTORS(RGFRs),are able to perceive the RGF1 signal and redundantly control root stem cell niche maintenance.RGF1 regulates root meristem activity mainly via two downstream transcription factors,PLETHORA 1(PLT1)and PLT2.Regulatory proteins connecting cell surface RGF1-RGI1 and nuclear PLTs,however,were not identified.Here,we report that the mitogen-activated protein(MAP)kinase kinase 4(MKK4)and MAP kinase 3(MPK3)were coimmunoprecipitated with RGI1-FLAG after Arabidopsis seedlings were treated with RGF1.Genetic and biochemical assays confirmed that MKK4 and MKK5,and their downstream targets MPK3 and MPK6,are essential RG卜dependent regulators of root meristem development.In addition,we found that the MKK4/MKK5-MPK3/MPK6 module functions downstream of YDA,a MAPKKK.Our results demonstrate that RGF1-RGI1 regulate the expression of PLT1/PLT2 via a YDA-MKK4/MKK5-MPK3/MPK6 signaling cascade.Xiaoting Lu Hongyong Shi Yang Ou Yanwei Cui Jinke Chang Liang Peng Xiaoping Gou Kai He Jia Li 2020Molecular Plant2020,13,11:3
7Receptor-like protein kinase-mediated signaling in controlling root meristem homeostasis显示文摘Generation of the root greatly benefits higher plants living on land.Continuous root growth and development are achieved by the root apical meristem,which acts as a reservoir of stem cells.The stem cells,on the one hand,constantly renew themselves through cell division.On the other hand,they differentiate into functional cells to form diverse tissues of the root.The balance between the maintenance and consumption of the root apical meristem is governed by cell-to-cell communications.Receptor-like protein kinases(RLKs),a group of signaling molecules localized on the cell surface,have been implicated in sensing multiple endogenous and environmental signals for plant development and stress adaptation.Over the past two decades,various RLKs and their ligands have been revealed to participate in regulating root meristem homeostasis.In this review,we focus on the recent studies about RLK-mediated signaling in regulating the maintenance and consumption of the root apical meristem.Yafen Zhu Chong Hu Xiaoping Gou 2020aBIOTECH2020,1,3:2
8Conserved and differentiated functions of CIK receptor kinases in modulating stem cell signaling in Arabidopsis显示文摘The shoot apical meristem(SAM)and root apical meristem(RAM)act as pools of stem cells that give rise to aboveground and underground tissues and organs in higher plants,respectively.The CLAVATA3(CLV3)-WUSCHEL(WUS)negative-feedback loop acts as a core pathway controlling SAM homeostasis,while CLV3/EMBRYO SURROUNDING REGION(ESR)40(CLE40)and WUSCHEL-RELATED HOMEOBOX5(WOX5),homologs of CLV3 and WUS,direct columella stem cell fate.Moreover,CLV3 INSENSITIVE KINASES(CIKs)have been shown to be essential for maintaining SAM homeostasis,whereas whether they regulate the distal root meristem remains to be elucidated.Here,we report that CIKs are indispensable for transducing the CLE40 signal to maintain homeostasis of the distal root meristem.We found that the cik mutant roots displayed disrupted quiescent center and delayed columella stem cell(CSC)differentiation.Biochemical assays demonstrated that CIKs interact with ARABIDOPSIS CRINKLY4(ACR4)in a ligand-independent manner and can be phosphorylated by ACR4 in vitro.In addition,the phosphorylation of CIKs can be rapidly induced by CLE40,which partially depends on ACR4.Although CIKs act as conserved and redundant regulators in the SAM and RAM,our results demonstrated that they exhibit differentiated functions in these meristems.Yafen Zhu Chong Hu Yanwei Cui Li Zeng Sunjingnan Li Mingsong Zhu Fanhui Meng Shuting Huang Li Long Jing Yi Jia Li Xiaoping Gou 2021Molecular Plant2021,14,7:2
9In vitro inhibition of postharvest pathogens of fruit and control of gray mold of strawberry and green mold of citrus by aureohasidin A显示文摘Xiaoping Liu Jiye Wang Ping Gou 2007International Journal of Food Microbiology2007,119,:1
10A highly efficient in vitro plant regeneration system and Agrobacterium-mediated transformation in Plumbago zeylanica显示文摘Xiaoping Wei Xiaoping Gou Tong Yuan Scott D. Russell 2006Plant Cell Reports2006,,6:1
11BAK1 and BKK1 Regulate Brassinosteroid-Dependent Growth and Brassinosteroid-Independent Cell-Death Pathways显示文摘Kai He Xiaoping Gou Tong Yuan Honghui Lin Tadao Asami Shigeo Yoshida Scott D. Russell Jia Li 2007Current Biology2007,,13:1
12BAK1 and BKK1 Regulate Brassinosteroid-Dependent Growth and Brassinosteroid-Independent Cell-Death Pathways显示文摘Kai He Xiaoping Gou Tong Yuan Honghui Lin Tadao Asami Shigeo Yoshida Scott D. Russell Jia Li 2007Current Biology2007,,13:1
13Receptor-like protein kinases in plant reproduction: Current understanding and future perspectives显示文摘Reproduction is a crucial process in the life span of flowering plants,and directly affects human basic requirements in agriculture,such as grain yield and quality.Typical receptor-like protein kinases(RLKs)are a large family of membrane proteins sensing extracellular signals to regulate plant growth,development,and stress responses.In Arabidopsis thaliana and other plant species,RLK-mediated signaling pathways play essential roles in regulating the reproductive process by sensing different ligand signals.Molecular understanding of the reproductive process is vital from the perspective of controlling male and female fertility.Here,we summarize the roles of RLKs during plant reproduction at the genetic and molecular levels,including RLK-mediated floral organ development,ovule and anther development,and embryogenesis.In addition,the possible molecular regulatory patterns of those RLKs with unrevealed mechanisms during reproductive development are discussed.We also point out the thought-provoking questions raised by the research on these plant RLKs during reproduction for future investigation.Yanwei Cui Xiaoting Lu Xiaoping Gou 2022Plant Communications2022,3,1:1
14Changes in circulating inflammatory cells and the relationship to secondary brain injury in patients with craniocerebral injury显示文摘BACKGROUND:Recent studies have indicated that reactive encephalitis plays an important role in secondary tissue damage after craniocerebral injury. OBJECTIVE: To observe changes in white blood cells (WBC) and polymorphonuclear neutrophils (PMN) in peripheral blood, and to determine their role in secondary brain insult in patients with craniocerebral injury. DESIGN, TIME AND SETTING: A case-control study at the Department of Neurosurgery of the Affiliated Hospital North Sichuan University of Medical Sciences between August 2007 and May 2008. PARTICIPANTS: Sixty-three patients, admitted within 24 hours after craniocerebral injury and who received no surgery, were included in the study. The cohort consisted of 41 males and 22 females, aged 9–72 years, with an average age of 42 years. Ten healthy volunteers, selected from the Department of Neurosurgery, were designated as the control group. METHODS: WBC and PMN from the peripheral blood were measured 0, 24, 48, 72, and 168 hours after admission to hospital. The Glasgow coma scale, area of cerebral hemorrhage, and degree of brain edema were simultaneously determined. The Glasgow outcome scale was evaluated six months after injury. The relationship between changes in WBC and PMN were analyzed. Sixty-three patients were divided into 0, 24, 48, 72, and 168 hours groups, with admission time to hospital as the determining factor. As controls, WBC and PMN of peripheral blood were also detected in 10 healthy volunteers. MAIN OUTCOME MEASURES: The main outcome measures were WBC and PMN counts in the peripheral blood at 0, 24, 48, 72, and 168 hours after admission to hospital, the mutual relationship between GCS, WBC and PMN, and changes in brain hemorrhage volume and edema size. RESULTS: WBC peaked at 24 hours after injury, and PMN peaked at 48 hours after injury (P < 0.01). These measures negatively correlated to the Glasgow coma scale (r = -0.657, -0.541, respectively, P < 0.05). In patients with Glasgow coma sale < 8, WBC and PMN were significantly higher than in the patients with GCS ≥ 8 (P < 0.05). Cerebral hemorrhage reached a peak at 24 hours after injury, and the degree of brain edema was maximal at 168 hours after injury. WBC and PMN counts were positively correlated to cerebral hemorrhage volume and brain edema size (P < 0.05). CONCLUSION: WBC and PMN counts significantly increased after craniocerebral injury and exhibited a correlation with the GCS score, volume of hemorrhage and edema, and Glasgow outcome scale.Xiaoping Tang Tao Zhang Yuanchuan Wang Hua Peng Ling Feng Jian Qi Wenguo Tang Zhangyang Gou Dingyong Yu Renguo Luo 2008Neural Regeneration Research2008,3,8:1
15The Dof transcription factor COG1 acts as a key regulator of plant biomass by promoting photosynthesis and starch accumulation显示文摘Photosynthetic efficiency is the primary determinant of crop yield,including vegetative biomass and grain yield.Manipulation of key transcription factors known to directly control photosynthetic machinery can be an effective strategy to improve photosynthetic traits.In this study,we identified an Arabidopsis gain-of-function mutant,cogwheel1-3D,that shows a significantly enlarged rosette and increased biomass compared with wild-type plants.Overexpression of COG1,a Dof transcription factor,recapitulated the phenotype of cogwheel1-3D,whereas knocking out COG1 and its six paralogs resulted in a reduced rosette size and decreased biomass.Transcriptomic and quantitative reverse transcription polymerase chain reaction analyses demonstrated that COG1 and its paralogs were required for light-induced expression of genes involved in photosynthesis.Further chromatin immunoprecipitation and electrophoretic mobility shift assays indicated that COG1 can directly bind to the promoter regions of multiple genes encoding light-harvesting antenna proteins.Physiological,biochemical,and microscopy analyses revealed that COG1 enhances photosynthetic capacity and starch accumulation in Arabidopsis rosette leaves.Furthermore,combined results of bioinformatic,genetic,and molecular experiments suggested that the functions of COG1 in increasing biomass are conserved in different plant species.These results collectively demonstrated that COG1 acts as a key regulator of plant biomass by promoting photosynthesis and starch accumulation.Manipulating COG1 to optimize photosynthetic capacity would create new strategies for future crop yield improvement.Zhuoyun Wei Haoyong Zhang Meng Fang Shuyuan Lin Mingsong Zhu Yuxiu Li Limin Jiang Tianliang Cui Yanwei Cui Hong Kui Liang Peng Xiaoping Gou Jia Li 2023Molecular Plant2023,16,11:0
16Changes in platelet parameters and secondary brain injury in acute craniocerebral trauma显示文摘Changes in platelet parameters are important in secondary brain injury in acute craniocerebral trauma.We selected 163 patients with craniocerebral trauma who were admitted within 24 hours with nonoperative therapy.Platelet parameters of 40 healthy subjects served as controls.Platelet number was decreased,while mean platelet volume and platelet distribution width values were increased,at 1 and 3 days after injury.Platelet number was lower and mean platelet volume and platelet distribution width were larger in patients with traumatic cerebral infarction and those in Glasgow Coma Scale score < 8 group.Platelet number was negatively correlated to volume of cerebral edema,but positively correlated to Glasgow Outcome Scale score.These data indicate that changes in platelet parameters may be utilized to indicate the state of central nervous system injury and patient prognosis.Xiaoping Tang Chao You Hua Peng Tao Zhang Wenguo Tang Jian Qi Renguo Luo Yuanchuan Wang Ling Feng Zhangyang Gou Junwei Duan Shun Li 2011Neural Regeneration Research2011,6,20:0
17Target-directed isolation and identification of a serum lectin from lamprey (Lampetra japonica) by chromatographys and MALDI-TOF/TOF显示文摘A 105-k Da polymer lectin was purified from lamprey(Lampetra japonica) serum by chromatography methods including cation ion-exchange chromatography with a SP-Sepharose TM XL column and size exclusion chromatography with a Superdex 200 column. The target fractions were collected according to the direction of hemagglutinating activity. The results revealed that the active fractions could adsorb on SP-Sepharose column and showed a 280 nm UV absorbance peak corresponding to molecular weights of 105 k Da in the following size exclusion chromatography. The target fractions with hemagglutinating activity were further checked by NativePAGE and SDS-PAGE. Two single bands at around 105 k Da and 35 k Da were displayed by two electrophoresis methods respectively, indicating that the protein exists as a trimer in solution. After Native-PAGE and SDS-PAGE,two bands were excised from the gels respectively and further identified by MALDI-TOF/TOF as serum lectin(gi:13094239). The lectin was able to agglutinate rabbit red blood cells(RRBCs) and sheep red blood cells(SRBCs) in vitro. The lectin isolated from lamprey serum in the current study might be helpful for deeply understanding the innate immune molecules dependent immune defence in jawless vertebrates which have been proved recently that they possess a lymphocyte-based system of anticipatory immunity with variable lymphocyte receptors as mediators.HAN Yinglun GOU Meng SONG Xiaoping SONG Tao SHI Biyue PANG Yue LI Qingwei 2018Acta Oceanologica Sinica2018,37,5:0
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