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Glutathione S-Transferase(GST)Identified from Giant Kelp Macrocystis pyrifera Increases the Copper Tolerance of Synechococcus elongatus PCC 7942

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Journal of Ocean University of China 2023年第3期22卷 777-789页

作者： GU Zipeng ren Yudong LIANG Chengwei ZHANG Xiaowen GENG Yilin XU Dong YE Naihao College of Marine Science and Biological Engineering Qingdao University of Science and TechnologyQingdao 266042China Yellow Sea Fisheries Research Institute Chinese Academy of Fishery SciencesQingdao 266071China Function Laboratory for Marine Fisheries Science and Food Production Processes Qingdao National Laboratory for Marine Science and TechnologyQingdao 266071China

The glutathione S-transferases gene family plays an important regulatory role in growth and development,and responses to environmental *** this study,six complete GST genes(Mp GST1,Mp GST2,Mp GST3,MpGST4,Mp GST5,and Mp GST6)were cloned from the gametophytes of brown alga Macrocystis *** bioinformatics analysis showed that these six genes encoded proteins with 202,216,288,201,205,and 201 aa,***,Mp GST3 differs from the other GST *** analysis suggested that MpGST3 belongs to the Ure2p type *** analysis suggested that the other GSTs from *** belong to the soluble GST family and form an independent branch with the GSTs found in the other macroalgae,suggesting that a new GST type was formed during macroalgal *** genes were upregulated in *** when 2.5 mg L^(-1)Cu ions were added to the *** GST genes were integrated into the genome of Synechococcus elongatus PCC 7942,and their functions were verified by measuring light absorbance,photosynthetic pigment content,and photosynthetic parameters of the transformed strains under 0.3 mg L^(-1)Cu ion *** results showed much higher levels of various parameters in the transformed strains than in the wild *** transformed strains(with the MpGST genes)showed significantly enhanced resistance to Cu ion stress,while the wild strain almost *** results of this study lay a theoretical foundation for further research on the Cu ion stress resistance function of GSTs in ***.

关键词： glutathione S-transferase genes gene cloning Cu ion stress Macrocystis pyrifera Synechococcus elongatus PCC 7942

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Characteristics and evolution of faults in the north-central Yin’e Basin and the effects on the coal-seam in the Cretaceous strata

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Frontiers of Earth Science 2023年第1期17卷 30-44页

作者： Qiang YU Baojiang WANG Zhanli ren Xianyao SUN Xianghe LEI Ahmed KHALED Qike YANG School of Earth Science and Resources Chang᾽an UniversityXi᾽an 710054China School of Information Technology Xichang UniversityXichang 615013China Department of geology Northwest UniversityXi’an 710069China

Research on the characteristics of faults and their evolutionary history since the Cretaceous in the Suhongtu-Dagu depressions can provide a theoretical basis for geological evaluation of the coal seams in the Suhongtu Formation in the northern-central region of the Yin’e *** 3-D seismic-logging inversion techniques,seismic stratigraphic calibration,stratigraphic sequence delineation,and thickness calculations on the Suhongtu-Dagu depressions were carried out to clarify the planar and profile distributions of the faults,as well as the evolutionary history of these faults and the tectonic history of the *** results of this study revealed that the distribution of the faults in the Suhongtu-Dagu depressions in the northern part of the Yin’e Basin varies with region,and the fault system was multi-period,orthotropic,north-east-trending,and north-north-east-trending,with a certain degree of inheritance in terms of the geological *** types of faults were identified:Y-shaped fractures,reverse Y-shaped fractures,and parallel fractures,which can be classified as Paleozoic-Cenozoic continuous syncline faults and intra-depression faults from the top of the Permian to the Upper Cretaceous series and inter-stratigraphic adjustment faults within the Cretaceous System,*** evolution of these faults can be divided into three phases:the controlling faults were the faults that existed before the Early Cretaceous and had been active since then;synclinal faults that formed during the Early Cretaceous;and modified faults that formed since the Early *** development and modification of the coal seams in the Cretaceous Suhongtu Formation in the Hari,Kuanzihu,and Babei sags were strongly controlled and influenced by a multi-phase complex fault system.

关键词： coal-seam tectonic evolution seismotectonic interpretation Hari depression 3D distribution of faults oil-gas exploration Guaizihu depression

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Contribution of underlying terrain to sand dunes: evidence from the Qaidam Basin, Northwest China

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Journal of Arid Land 2021年第12期13卷 1215-1229页

作者： LI Jiyan QU Xin DONG Zhibao CAI Yingying LIU Min ren Xiaozong CUI Xujia School of Geography Science Taiyuan Normal UniversityJinzhong 030619China School of Geography and Tourism Shaanxi Normal UniversityXi'an 710119China

Underlying terrain strongly influences dune ***,the impacts of underlying terrain on the dune formation are poorly *** the present research,we focused on dunes that formed in the alluvial fans and dry salt flats in the Qaidam Basin,Northwest *** quantified the dunes'sediment characteristics on different types of underlying terrain and the terrain's effects on the surface quartz grains by analyzing grain-size distribution,soluble salt contents and grain surface *** showed that barchan dunes were dominated by medium sands with a unimodal frequency distribution,whose peak corresponded to the saltation *** dunes were mainly composed of fine sands with a bimodal frequency distribution,whose main peak represented the saltation load,and whose secondary peak represented the modified saltation or suspension *** was transported from source area by running water(inland rivers)over short distances and by wind over relatively longer ***,quartz grains had poor roundness and were dominated by sub-angular and angular *** micro-textures indicated that dune sands were successively transported by exogenic agents(glaciation,fluviation and wind).Soluble salt contents were low in dunes that developed in the alluvial fans,which represented a low-energy chemical environment,so the grain surface micro-textures mainly resulted from mechanical erosion,with weak micro-textures formed by SiO2 solution and ***,soluble salt contents were much higher in dunes that developed in the dry salt flats,which indicated a high-energy chemical ***,in addition to micro-structures caused by mechanical erosion,micro-textures formed by SiO2 solution and precipitation also well *** results improve understanding of the sediment characteristics of dune sands and the effects of underlying terrain on dune development in the Qaidam Basin,China.

关键词： dune grain-size distribution soluble salts surface micro-texture Qaidam Basin

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Melatonin enhances the efficacy of anti-PD-L1 by improving hypoxia in residual tumors after insufficient radiofrequency ablation

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Journal of Pharmaceutical Analysis 2024年第8期14卷 1176-1188页

作者： Yanqiao ren Licheng Zhu Yusheng Guo Jinqiang Ma Lian Yang Chuansheng Zheng Xiangjun Dong Department of Radiology Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430022China

The hypoxic microenvironment and inflammatory state of residual tumors caused by insufficient radiofrequency ablation(iRFA)are major reasons for rapid tumor progression and pose challenges for *** retrospectively analyzed the clinical data of patients with hepatocellular carcinoma(HCC)treated with RFA and observed that iRFAwas associated with poor survival outcomes and progression-free *** an orthotopic HCC mouse model and a colorectal liver metastasis model,we observed that treatment with melatonin after iRFA reduced tumor growth and metastasis and achieved the best outcomes when combined with anti-programmed death-ligand 1(anti-PD-L1)*** mechanism,melatonin inhibited the expression of epithelial-mesenchymal transitions,hypoxia-inducible factor(HIF)-1a,and PD-L1 in tumor cells after *** cytometry revealed that melatonin reduced the proportion of myeloid-derived suppressor cells and increased the proportion of CD8t T *** analysis revealed an upregulation of immune-activated function-related genes in residual *** findings demonstrated that melatonin can reverse hypoxia and iRFA-induced inflammation,thereby overcoming the immunosuppressive tumor microenvironment(TME)and enhancing the efficacy of immunotherapy.

关键词： Insufficient radiofrequency ablation Melatonin Hypoxia Immunotherapy

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The synergy of modulated surface polarity and oxygen vacancy for CO_(2) to methanol over Zn(δ-)-Ti(δ+)Ovacancy

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Journal of Energy Chemistry 2021年第5期30卷 449-454页

作者： Junfu Zhou Lin Ye Daofeng Huang Meiyin Wang Yuanhang ren Bin Yue Heyong He Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Collaborative Innovation Center of Chemistry for Energy MaterialsFudan UniversityShanghai 200438China

Bi-functional catalysts,which can be traced back to 1960s,are widely applied in energy conversion and chemical transformation[1].Generally,the enhanced performance of the bi-functional catalyst comes from the local geometry or electron density change after the second component *** changes facilitate the reaction at the structure or electron density level[2].In fact,it is a great challenge to understand and control those effects[3].

关键词： CO_(2)conversion Zn species Oxygen vacancy Synergy Formate route Synchrotron XRD

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Geochemical Characteristics and Gas-to-Gas Correlation of Two Leakage-type Gas Hydrate Accumulations in the Western Qiongdongnan Basin, South China Sea

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Acta Geologica Sinica(English Edition) 2022年第2期96卷 680-690页

作者： LAI Hongfei QIU Haijun LIANG Jinqiang KUANG Zenggui FANG Yunxin ren Jinfeng LU Jing’an Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou) Guangzhou 511458China MNR Key Laboratory of Marine Mineral Resources Guangzhou Marine Geological SurveyMinistry of Natural ResourcesGuangzhou 510075China

In recent years,a series of highly saturated leakage-type gas hydrates have been discovered in the western Qiongdongnan Basin(QDNB),South China *** on the molecular compositional and isotopic characteristics of the gas samples relevant to the gas hydrates collected from the two leakage-type gas hydrate accumulations in the GMGS5 and GMGS6 drilling zones,a detailed geochemical gas-to-gas correlation was conducted in this study,in order to further understand the geochemical characteristics and possible hydrocarbon sources of these gas *** natural gas relevant to the gas hydrates in the GMGS5 block is characterized by wet gas(67.96%0.9)and lack molecular and carbon isotope *** 40%‒60%of the methane within the gas hydrate is of microbial origin,while the C^(2+)gas components are typical coal-type gas that are derived from thermogenic source rocks or deeply-buried natural gas *** addition,typical in situ primary microbial methane(−80.6‰rent,suggesting that they may have been derived from different source *** results further indicate that the deeply-buried thermogenic gas significantly contributed to the shallowly-buried gas hydrates in the western QDNB and multiple effective thermogenic source kitchens provided the hydrocarbon gas in the gas hydrate accumulations.

关键词： gas hydrate gas genetic type hydrocarbon gas source geochemical characteristics

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Optimizing agronomic practices for closing rapeseed yield gaps under intensive cropping systems in China

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Journal of Integrative Agriculture 2020年第5期19卷 1241-1249页

作者： ZHANG Zhi CONG Ri-huan ren Tao LI Hui ZHU Yun LU Jian-wei College of Resources and Environment Huazhong Agricultural University/Key Laboratory of Arable Land Conservation(Middle and Lower Reaches of Yangtze River)Ministry of Agriculture and Rural AffairsWuhan 430070P.R.China Key Laboratory of Fertilization from Agricultural Wastes Ministry of Agriculture and Rural Affairs/Institute of Plant Protection and Soil FertilizerHubei Academy of Agricultural SciencesWuhan 430064P.R.China

A yield gap analysis for rapeseed(Brassica napus L.) is critical to meeting the oil demand by identifying yield potential and yield constraints. In this study, potential yield(Y_p), attainable yield(Y_(att)), and actual yield(Y_(act)) for winter rapeseed were determined in five different zones of China. A boundary line approach was adopted to calculate Y_p, based on a large-scale field experimental database. A meta-analysis was conducted on the data obtained from 118 published studies to evaluate the effects of agronomic factors on rapeseed yield. The main results indicated that farmers only achieved 37–56% of the yield potential across the zones. The low altitude areas(L-URY) and lower reaches(LRY) of the Yangtze River Basin(YRB), China had high yield levels. The total yield gap was 1 893 kg ha^(–1), due to the agronomic management factors, environmental factors, and socioeconomic factors. The meta-analysis showed that weed control and drainage were the best management practices to improve yields(45.6 and 35.3%, respectively), and other practices improved yields by 17.1–21.6%. Consequently, to narrow the yield gap over the short term, the study could focus on techniques that are easily implemented to farmers.

关键词： rapeseed yield gap potential yield boundary line meta-analysis Yangtze River Basin

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Identification of novel Lynch syndrome mutations in Chinese patients with endometriod endometrial cancer

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Cancer Biology & Medicine 2020年第2期17卷 458-467页

作者： Caixia ren Yan Liu Yuxiang Wang Yan Tang Yawei Wei Congrong Liu Hongquan Zhang Key Laboratory of Carcinogenesis and Translational Research Ministry of Educationand State Key Laboratory of Natural and Biomimetic DrugsPeking University Health Science CenterBeijing 100191China Department of Human Anatomy Histology and EmbryologyPeking University Health Science CenterBeijing 100191China Department of Pathology Peking University Health Science CenterBeijing 100191China Department of Human Anatomy Basic Medical College of Hebei North UniversityZhangjiakou 075000China

Objective:Lynch syndrome(LS)predisposes patients to early onset endometrioid endometrial cancer(EEC).However,little is known about LS-related EEC in the Chinese *** aim of this study was to investigate the prevalence of LS and to identify the specific variants of LS in Chinese patients with ***:We applied universal immunohistochemistry screening to detect the expression of mismatch repair(MMR)proteins,which was followed by MLH1 methylation analysis to identify suspected LS cases,next-generation sequencing(NGS)to confirm LS,and microsatellite instability(MSI)analysis to verify ***:We collected 211 samples with ***-seven(27/211,12.8%)EEC cases had a loss of MMR protein *** MLH1 methylation analysis,16 EEC cases were suggested to be associated with ***,through NGS and MSI analysis,we determined that 10 EEC(10/209,4.78%)cases were associated with *** those cases,3 unreported mutations(1 frameshift and 2 nonsense)were identified.M SH6 c.597_597delC,found in 4 patients,is likely to be a founder mutation in ***:We demonstrated the feasibility of a process for LS screening in Chinese patients with EEC,by using universal immunohistochemistry screening followed by MLH1 methylation analysis and confirmation through NGS and MSI *** novel mutations identified in this study expand knowledge of LS.

关键词： DNA mismatch repair endometrial endometrioid cancer germline mutation Lynch syndrome next-generation sequencing

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Identification and expression profiles of gustatory receptor genes in Bactrocera minax larvae(Diptera:Tephritidae):Role of BminGR59f in larval growth

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Insect Science 2022年第5期29卷 1240-1250页

作者： Guijian Zhang Shuai Cao Tong Guo Haoran Wang Xuewei Qi Xueming ren Changying Niu Hubei Key Laboratory of Insect Resource Application and Sustainable Pest Control College of Plant Science&TechnologyHuazhong Agricultural UniversityWuhanChina

Insects employ various types of gustatory receptors(GRs)to identify nutrient-rich food and avoid toxic *** larval gustatory system is the critical checkpoint for food acceptance or *** a specialist herbivore,the larvae of Bactrocera minax feed only on unripe citrus ***,how larvae use GRs to check and adapt to the secondary metabolites in unripe citrus fruits remains *** this study,we first performed developmental expression profiles showing that most BminGRs genes were highly expressed in 1st and 2nd instar larvae and that tissue-specific expression indicated high expression of most BminGRs genes in the mouthparts of 2nd instar ***,we found that silencing BminGR59f by RNA interference(RNAi)affected the growth of 2nd instar *** *** and naringin were screened as ligands of BminGR59f via RNAi and cell calcium imaging,and the combination of these two flavones increased the body weight of *** summary,we identified a novel gustatory perception pattern in *** for detecting hesperidin and naringin,which boosted the growth of *** *** results shed light on how specialist herbivores detect and adapt to host metbolites in adverse environments depending on larval GRs.

关键词： gustatory receptors secondary metabolites specialist herbivores tephritid unripe citrus fruits

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Deterministic nondestructive state analysis for polarization-spatial-time-bin hyperentanglement with cross-Kerr nonlinearity

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Chinese Physics B 2021年第3期30卷 176-182页

作者： Hui-Rong Zhang Peng Wang Chang-Qi Yu Bao-Cang ren Department of Physics Capital Normal UniversityBeijing 100048China

We present a deterministic nondestructive hyperentangled Bell state analysis protocol for photons entangled in three degrees of freedom(DOFs),including polarization,spatial-mode,and time-bin *** polarization Bell state analyzer and spatial-mode Bell state analyzer are constructed by polarization parity-check quantum nondemolition detector(P-QND)and spatial-mode parity-check quantum nondemolition detector(S-QND)using cross-Kerr nonlinearity,*** time-bin Bell state analyzer is constructed by the swap gate for polarization state and time-bin state of a photon(P-T swap gate)and *** Bell states analyzer for one DOF will not destruct the Bell states of other two DOFs,so the polarization-spatial-time-bin hyperentangled Bell states can be determinately distinguished without *** deterministic nondestructive state analysis method has useful applications in quantum information protocols.

关键词： quantum communication deterministic nondestructive state analysis polarization-spatial-time-bin hyperentanglement

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