维普中文期刊产品整合服务
81篇 您的检索式:作者名="Lin Zhigang"
    题名 作者 年代 出处 被引量
1Growth and nutrient dynamics of Betula alnoides seedlings under exponential fertilization显示文摘Betula alnoides is a fast-growing hardwood species grown in large plantations in Southeast Asia and South China.Nitrogen requirements for producing robus seedlings,growth and nutrient dynamics were investigated using exponential fertilization treatments.Root collar diameter,height,dry mass and nutrient contents of seedlings increased exponentially in all fertilization treatments as time progressed.Moreover,with water soluble fertilizer(Plant Products plus microelements N–P_2O_5–K_2O:20–20–20),300 mg N seedling^(-1)was adequate.Vector analysis revealed that P was the most responsive nutrient element followed by N and K.Dilutions of N and K were evident in the plants without N addition,which induced initial P sufficiency and then luxury consumption probably due to the antagonistic interaction between N and P.However deficiencies of N,P and K were mostly observed in al exponential regimes during the experiment because seedling growth rate exceeded nutrient uptake rate,inferring that further study on improving the nutrient uptake efficiency is needed.Analysis of relationships among nutrient supply,dry mass,N content and N concentration demonstrated that 100–400 mg N seedling^(-1)induced sufficiency to luxury consumption of nitrogen without significant change in dry mass,and 400 mg N seedling^(-1)is recommended to apply for nutrient loading of seedlings before outplanting.The findings will help improve seedling quality and enhance the production of robust seedlings for plantation forestry of this species.Lin Chen Chunsheng Wang Bernard Dell Zhigang Zhao Junjie Guo Daping Xu Jie Zeng 2018Journal of Forestry Research2018,29,1:14
2Transcriptional activation and phosphorylation of OsCNGC9 confer enhanced chilling tolerance in rice显示文摘Low temperature is a major environmental factor that limits plant growth and productivity.Although transient elevation of cytoplasmic calcium has long been recognized as a critical signal for plant cold tolerance,the calcium channels responsible for this process have remained largely elusive.Here we report that OsCNGC9,a cyclic nucleotide-gated channel,positively regulates chilling tolerance by mediating cytoplasmic calcium elevation in rice(Oryza sativa).We showed that the loss-of-function mutant of OsCNGC9 is defective in cold-induced calcium influx and more sensitive to prolonged cold treatment,whereas OsCNGC9 overexpression confers enhanced cold tolerance.Mechanistically,we demonstrated that in response to chilling stress,OsSAPK8,a homolog of Arabidopsis thaliana OST1,phosphorylates and activates OsCNGC9 to trigger Ca2+influx.Moreover,we found that the transcription of OsCNGC9 is activated by a rice dehydration-responsive element-binding transcription factor,OsDREB1A.Taken together,our results suggest that OsCNGC9 enhances chilling tolerance in rice through regulating cold-induced calcium influx and cytoplasmic calcium elevation.Jiachang Wang Yulong Ren Xi Liu Sheng Luo Xiao Zhang Xin Liu Qibing Lin Shanshan Zhu Hua Wan Yang Yang Yu Zhang Bin Lei Chunlei Zhou Tian Pan Yongfei Wang Mingming Wu Ruonan jing Yang Xu Meng Han Fuqing Wu Cailin Lei Xiuping Guo Zhijun Cheng Xiaoming Zheng Yihua Wang Zhigang Zhao Ling Jiang Xin Zhang Yong-Fei Wang Haiyang Wang Jianmin Wan 2021Molecular Plant2021,14,2:10
3Determination of both jasmonic acid and methyl jasmonate in plant samples by liquid chromatography tandem mass spectrometry显示文摘An efficient method for the simultaneous extraction and quantification of both jasmonic acid(JA)and methyl jasmonate(MeJA) from a single plant sample was developed.Plant tissues were firstly extracted by using 100%cold methanol,then the Sep-pak C18 solid-phase extraction(SPE)cartridges were adopted for the purification of sample extract,and finally JA and MeJA were determined by the liquid chromatography tandem mass spectrometry(LC-MS-MS)system.It was found that the accuracy was improved by using the extra standard for the estimation and correction of JA and MeJA losses in the extraction and purification process.The detection limits for JA and MeJA were 0.03 and 0.075 ng mL-1,respectively,and the average recovery rate of JA and MeJA was 92.48%and 94.30%.The method was found to be reproducible and selective,yielding well isolated and easily detectable peaks for both JA and MeJA and simplifying the time-consuming extraction and purification.High-performance liquid chromatography(HPLC)system was employed as the control detection method for the LC-MS-MS system.The two systems were compared in their specificity and accuracy.LIU Xia YANG YanLi LIN WanHuang TONG JianHua HUANG ZhiGang XIAO LangTao 2010Chinese Science Bulletin2010,55,21:10
4Status and development of high-power laser facilities at the NLHPLP显示文摘In this paper, we review the status of the multifunctional experimental platform at the National Laboratory of High Power Laser and Physics(NLHPLP). The platform, including the SG-II laser facility, SG-II 9th beam, SG-II upgrade(SG-II UP) facility, and SG-II 5 PW facility, is operational and available for interested scientists studying inertial confinement fusion(ICF) and a broad range of high-energy-density physics. These facilities can provide important experimental capabilities by combining different pulse widths of nanosecond, picosecond, and femtosecond scales. In addition, the SG-II UP facility, consisting of a single petawatt system and an eight-beam nanosecond system, is introduced including several laser technologies that have been developed to ensure the performance of the facility. Recent developments of the SG-II 5 PW facility are also presented.Jianqiang Zhu Jian Zhu Xuechun Li Baoqiang Zhu Weixin Ma Xingqiang Lu Wei Fan Zhigang Liu Shenlei Zhou Guang Xu Guowen Zhang Xinglong Xie Lin Yang Jiangfeng Wang Xiaoping Ouyang Li Wang Dawei Li Pengqian Yang Quantang Fan Mingying Sun Chong Liu Dean Liu Yanli Zhang Hua Tao Meizhi Sun Ping Zhu Bingyan Wang Zhaoyang Jiao Lei Ren Daizhong Liu Xiang Jiao Hongbiao Huang Zunqi Lin 2018High Power Laser Science and Engineering2018,6,4:8
5Possible mechanism underlying analgesic effect of Tuina in rats may involve piezo mechanosensitive channels within dorsal root ganglia axon显示文摘OBJECTIVE: To demonstrate the analgesic effect of Tuina mainly from mechanically sensitive ion channels in peripheral myelinated nerve fibers.METHODS: A total of 40 healthy and pathogen-free adult male Sprague-Dawley rats were used in the study [weight:(220.0 ± 1.4) g, Shanghai Slac Laboratory Animal Co., Ltd., Shanghai, China; license No. Shanghai ICP 05033115]. The rats were housed in cages with free access to water and food in a temperature-controlled room [(22 ± 1) ℃] and12-h/12-h light-dark cycle. Thirty-two rats were randomly divided into five groups: naive, sham, chronic compression of dorsal root ganglion(CCD), Tuina(7 d) and Tuina(21 d). CCD rat model was established via unilateral DRG compression by'L'liked steel bar. Chinese Tuina treatment was accepted once per day. Behavior monitoring of paw withdrawal threshold(PWT) and paw withdrawal latency(PWL) were tested. The expression of Piezo1 and Piezo2 in myelinated nerve fiber were analyzed by immunohistochemistry and Western-blotting.RESULTS: There was a high expression of Piezo2 and a low expression of Piezo1 in the naive and CCD groups. In contrast, the expression of Piezo2 was down regulated and Piezo1 was increased after a period of Tuina. There was significant difference(P ≤ 0.05) between the groups.CONCLUSION: Our findings suggest that Tuina therapy can increase the expression of Piezo2 and decrease the expression of Piezo1 in the test rats.The different changes in the expressions of Piezo1 and Piezo2 may play an important role in alleviating CCD-induced allodynia and hyperalgesia.Song Pengfei Lin Zhigang Zhu Qingguang Jiang Shichao Zhang Hao Cheng Yanbin Sun Wuquan Wu Zhiwei Zhou Xin Lv Zhizhen Fang Min 2018Journal of Traditional Chinese Medicine2018,38,6:6
6High salt diet accelerates the progression of murine lupus through dendritic cells via the p38 MAPK and STAT1 signaling pathways显示文摘The increased incidence of systemic lupus erythematosus(SLE)in recent decades might be related to changes in modern dietary habits.Since sodium chloride(NaCl)promotes pathogenic T cell responses,we hypothesize that excessive salt intake contributes to the increased incidence of autoimmune diseases,including SLE.Given the importance of dendritic cells(DCs)in the pathogenesis of SLE,we explored the influence of an excessive sodium chloride diet on DCs in a murine SLE model.We used an induced lupus model in which bone marrow-derived dendritic cells(BMDCs)were incubated with activated lymphocyte-derived DNA(ALD-DNA)and transferred into C57BL/6 recipient mice.We observed that a high-salt diet(HSD)markedly exacerbated lupus progression,which was accompanied by increased DC activation.NaCl treatment also stimulated the maturation,activation and antigenpresenting ability of DCs in vitro.Pretreatment of BMDCs with NaCl also exacerbated BMDC-ALD-DNA-induced lupus.These mice had increased production of autoantibodies and proinflammatory cytokines,more pronounced splenomegaly and lymphadenopathy,and enhanced pathological renal lesions.The p38 MAPK–STAT1 pathway played an important role in NaClinduced DC immune activities.Taken together,our results demonstrate that HSD intake promotes immune activation of DCs through the p38 MAPK–STAT1 signaling pathway and exacerbates the features of SLE.Thus,changes in diet may provide a novel strategy for the prevention or amelioration of lupus or other autoimmune diseases.Ze Xiu Xiao Xiaojiang Hu Ximei Zhang Zhigang Chen Julie Wang Ke Jin Feng Lin Cao Baoqing Sun Joseph A.Bellanti Nancy Olsen Song Guo Zheng 2020Signal Transduction and Targeted Therapy2020,5,1:6
7Sub-10-fs pulse generation directly from a KLM Ti: sapphire laser显示文摘By reducing the effects of frequency dependent mode size and intracavity gain saturation of a KLM Ti: sapphire laser, the pulse bandwidth broadening is enhanced significantly. 8.5 fs pulses with the bandwidth of 92 nm at wavelength of 710 nm have been generated directly from this laser and measured with an extracavity group velocity dispersion compensation system.Weizhu Lin Rui Liao Jinhui Wen Zhigang Liu Li Deng Haichao Zhang Tianshu Lai 2002Chinese Science Bulletin2002,47,12:5
8Structural shifts in the intestinal microbiota of rats treated with cyclosporine A after orthotropic liver transplantation显示文摘Understanding the effect of immunosuppressive agents on intestinal microbiota is important to reduce the mortality and morbidity from orthotopic liver transplantation (OLT). We investigated the relationship between the commonly used immunosuppressive agent cyclosporine A (CSA) and the intestinal microbial variation in an OLT model. The rat samples were divided as follows:(1) N group (normal control);(2) I group (isograft LT, Brown Norway [BN] rat to BN);(3) R group (allograft LT, Lewis to BN rat);and (4) CSA group (R group treated with CSA). The intestinal microbiota was assayed by denaturing gradient gel electrophoresis profiles and by using real-time polymerase chain reaction. The liver histopathology and the alanine/aspartate aminotransferase ratio after LT were both ameliorated by CSA. In the CSA group, the numbers of rDNA gene copies of Clostridium cluster I, Clostridium cluster XIV, and Enterobacteriaceae decreased, whereas those of Faecalibacterium prausnitzii increased compared with the R group. Cluster analysis indicated that the samples from the N, I, and CSA groups were clustered, whereas the other clusters contained the samples from the R group. Hence, CSA ameliorates hepatic graft injury and partially restores gut microbiota following LT, and these may benefit hepatic graft rejection.Junjun Jia Xinyao Tian Jianwen Jiang Zhigang Ren Haifeng Lu Ning He Haiyang Xie Lin Zhou Shusen Zheng 2019Frontiers of Medicine2019,13,4:5
9Precipitation and responding damping behavior of heat-treated AZ31 magnesium alloy显示文摘Microstructure observation and dynamic mechanical analysis were carried out to in- vestigate the precipitation and responding damping behaviors of AZ31 magnesium alloy. All the strain amplitude-dependent damping curves of the aged alloys are located between the curves of solutionized and as-cast alloys, although they have different critical strain amplitudes. The G-L theory is employed to explain the damp- ing mechanism involving the interaction between the dislocation and the precipitated phase. In addition, a damping peak is observed at temperatures close to 330 °C for AZ31 magnesium alloy, which is related to the β-Mg17Al12 phase dissolution.Diqing WAN Jincheng WANG Gaifang WANG Lin LIN Zhigang FENG Gencang YANG 2009Acta Metallurgica Sinica(English Letters)2009,22,1:5
10Morphological control of SnTe nanostructures by tuning catalyst composition显示文摘A method of controlling the morphology of SnTe nanostructures produced by a simple chemical vapor deposition is presented, in which Au-containing catalysts with different Au concentrations are used to induce specific growth behavior. Triangular SnTe nanoplates with a {100} dominated surface and {100}, {111} and {120} side facets were induced by AuSn catalysts, whereas 〈010〉 SnTe nanowires with four nonpolar {100} side-facets were produced using AusSn catalysts. Through detailed structural and chemical characterization, coupled with surface energy calculations, it is found that nanowire growth is thermodynamically controlled via a vapor-solid-solid growth mechanism, whereas nanoplate growth is kinetically controlled via a vapor-liquid-solid growth mechanism. Therefore, this study provides a fundamental understanding of the catalyst's role in the growth of IV-VI compound nanostructures.Yichao Zou Zhigang Chen Jing Lin Xiaohao Zhou Wei Lu John Drennan Jin Zou 2015Nano Research2015,8,9:4
11Vertical structure and seasonal variation of tidal and residual currents in the northern Huanghai Sea显示文摘Analysis of tidal current and sea level has been made based on the observations from the summer of 2006 to the winter of 2007,respectively.The result indicates that a two-layer structure of residual current exists in summer,with its upper layer going northwestward and the lower layer southeastward.In addition,some strong residuals exist in the neighboring depth of the pycnocline during the current period of astronomical tide.In winter,except some individual layersthe residual currents mostly direct to the northwest,from which we can see the fluctuation of abnormal sea-level and the appearance of associated current because of the changes of the wind field.The analysis of tidal ellipse indicates that the direction of the maximum semidiurnal component is clockwise from summer to winter,with an angle of 16-18.Moreover,in summer the semidiurnal component rotates with depth clockwise while the diurnal component counterclockwise.However,the vertical structure is almost homogeneous in winter.SONG Jun GUO Junru QIAO Lulu MU Lin YAO Zhigang LIU Yang LI Huan BAO Xianwen SUN Xiaoyan GAO Jia 2011Acta Oceanologica Sinica2011,30,5:4
12Bioinformatics analysis for structure and function of CPR of Plasmodium falciparum显示文摘Objective:To analyse the structure and function of NADPH-cytochrome p450 reductase(CYPOR or CPR) from Plasmodium falciparum(Pf),and to predict its’ drug target and vaccine target. Methods:The structure,function,drug target and vaccine target of CPR from Plasmodium falciparum were analyzed and predicted by bioinformatics methods.Results:PfCPR,which was older CPR,had close relationship with the CPR from other Plasmodium species,but it was distant from its hosts,such as Homo sapiens and Anopheles.PfCPR was located in the cellular nucleus of Plasmodium falciparum.335aa-352aa and 591aa - 608aa were inserted the interior side of the nuclear membrane,while 151aa-265aa was located in the nucleolus organizer regions.PfCPR had 40 function sites and 44 protein-protein binding sites in amino acid sequence.The teriary structure of laa-700aa was forcep-shaped with wings.15 segments of PfCPR had no homology with Homo sapien CPR and most were exposed on the surface of the protein.These segments had 25 protein-protein binding sites.While 13 other segments all possessed function sites. Conclusions:The evolution or genesis of Plasmodium falciparum is earlier than those of Homo sapiens.PfCPR is a possible resistance site of antimalarial drug and may involve immune evasion, which is associated with parasite of sporozoite in hepatocytes.PfCPR is unsuitable as vaccine target,but it has at least 13 ideal drug targets.Zhigang Fan Lingmin Zhang Guogang Yan Qiang Wu Xiufeng Gan Saifeng Zhong Guifen Lin 2011Asian Pacific Journal of Tropical Medicine2011,4,2:3
13Increased lateral root formation by CRISPR/Cas9-mediated editing of arginase genes in cotton显示文摘Dear Editor,Proper development of plant roots is critical for primary physiological functions,including water and nutrient absorption and uptake,physical support,and carbohydrate storage(Zhang et al.,2010).Crop root systems act as the key organ for sensing and response to abiotic and biotic stresses.Previous studies of crop root system development suggest that increased lateral root formation(LRF)couldYanling Wang Zhigang Meng Chengzhen Liang Zhaohong Meng Yuan Wang Guoqing Sun Tao Zhu Yongping Cai Sandui Guo Rui Zhang Yi Lin 2017Science China(Life Sciences)2017,60,5:3
14A 10-miRNA risk score-based prediction model for pathological complete response to neoadjuvant chemotherapy in hormone receptor-positive breast cancer显示文摘Patients with hormone receptor(HR)-positive tumors breast cancer usually experience a relatively low pathological complete response(p CR)to neoadjuvant chemotherapy(NAC).Here,we derived a 10-micro RNA risk score(10-mi RNA RS)-based model with better performance in the prediction of p CR and validated its relation with the disease-free survival(DFS)in 755 HRpositive breast cancer patients(273,265,and 217 in the training,internal,and external validation sets,respectively).This model,presented as a nomogram,included four parameters:the 10-mi RNA RS found in our previous study,progesterone receptor(PR),human epidermal growth factor receptor 2(HER2)status,and volume transfer constant(K).Favorable calibration and discrimination of 10-mi RNA RS-based model with areas under the curve(AUC)of 0.865,0.811,and 0.804 were shown in the training,internal,and external validation sets,respectively.Patients who have higher nomogram score(>92.2)with NAC treatment would have longer DFS(hazard ratio=0.57;95%CI:0.39–0.83;P=0.004).In summary,our data showed the 10-mi RNA RS-based model could precisely identify more patients who can attain p CR to NAC,which may help clinicians formulate the personalized initial treatment strategy and consequently achieves better clinical prognosis for patients with HRpositive breast cancer.Chang Gong Ziliang Cheng Yaping Yang Jun Shen Yingying Zhu Li Ling Wanyi Lin Zhigang Yu Zhihua Li Weige Tan Chushan Zheng Wenbo Zheng Jiajie Zhong Xiang Zhang Yunjie Zeng Qiang Liu RStephanie Huang Andrzej LKomorowski Eddy SYang François Bertucci Francesco Ricci Armando Orlandi Gianluca Franceschini Kazuaki Takabe Suzanne Klimberg Naohiro Ishii Angela Toss Mona PTan Mathew A Cherian Erwei Song 2022Science China(Life Sciences)2022,65,11:3
15Tet2 Regulates Osteoclast Differentiation by Interacting with Runx1 and Maintaining Genomic 5-Hydroxymethylcytosine(5hmC)显示文摘As a dioxygenase, Ten-Eleven Translocation 2(TET2) catalyzes subsequent steps of 5-methylcytosine(5 mC) oxidation. TET2 plays a critical role in the self-renewal, proliferation,and differentiation of hematopoietic stem cells, but its impact on mature hematopoietic cells is not well-characterized. Here we show that Tet2 plays an essential role in osteoclastogenesis. Deletion of Tet2 impairs the differentiation of osteoclast precursor cells(macrophages) and their maturation into bone-resorbing osteoclasts in vitro. Furthermore, Tet2^(-/-) mice exhibit mild osteopetrosis, accompanied by decreased number of osteoclasts in vivo. Tet2 loss in macrophages results in the altered expression of a set of genes implicated in osteoclast differentiation, such as Cebpa, Mafb, and Nfkbiz. Tet2 deletion also leads to a genome-wide alteration in the level of 5-hydroxymethylcytosine(5 hmC) and altered expression of a specific subset of macrophage genes associated with osteoclast differentiation. Furthermore, Tet2 interacts with Runx1 and negatively modulates its transcriptional activity. Our studies demonstrate a novel molecular mechanism controlling osteoclast differentiation and function by Tet2, that is, through interactions with Runx1 and the maintenance of genomic 5 hmC. Targeting Tet2 and its pathway could be a potential therapeutic strategy for the prevention and treatment of abnormal bone mass caused by the deregulation of osteoclast activities.Yajing Chu Zhigang Zhao David Wayne Sant Ganqian Zhu Sarah M. Greenblatt Lin Liu Jinhuan Wang Zeng Cao Jeanette Cheng Tho Shi Chen Xiaochen Liu Peng Zhang Jaroslaw P. Maciejewski Stephen Nimer Gaofeng Wang Weiping Yuan Feng-Chun Yang Mingjiang Xu 2018Genomics, Proteomics & Bioinformatics2018,16,3:2
16Microstructural Evolutions of AA7055 Aluminum Alloy Under Dynamic and Quasi-static Compressions显示文摘The microstructural evolution of AA7055 aluminum alloy under dynamic impact loading with the strain rate of1.3*104s-1controlled by a split Hopkinson pressure bar was investigated,and compared with that under quasi-static mechanical loading in compression with strain rate of 1.0*10-3s-1.The quasi-static-compressed sample exhibited equiaxed dislocation cells,which were different from the elongated and incomplete dislocation cells for the alloy undergoing dynamic compression.The high strain-rate compression also induced the formation of localized shear bands in which the recrystallizations characterized as fine equiaxed grains were observed.The microstructural evolutions under both quasi-static and dynamic compressions are rationalized in terms of the dislocation cell model combined with the dislocation kinetics,in addition to the adiabatic temperature rise in shear bands at high strain rate.Yuanyuan Xiong Ning Li Huawen Jiang Zhigang Li Zhu Xu Lin Liu 2014Acta Metallurgica Sinica(English Letters)2014,27,2:2
17为从变形体 berghei 的氮的氧化物 synthase 和类似的蛋白质的结构和功能的生物信息学分析和预言显示文摘 <正>Objective:To search and analyze nitric oxide synthase(NOS) and similar proteins from Plasmodium berghei(Pb).Methods:The structure and function of nitric oxide synthase and similar proteins from Plasmodium berghei were analyzed and predicted by bioinformatics. Results:P6NOS were not available,but nicotinamide adenine dinucleotide 2’-phosphate reduced tetrasodium(NADPH)-cytochrome p450 reductase(CPR) were gained.PiCPR was in the nucleus of Plasmodium berghei,while 134aa-229aa domain was localize in nucleolar organizer. The amino acids sequence of P6CPR had the closest genetic relationship with Plasmodium vivax showing a 73%homology.The tertiary structure of PbCPR displayed the forcep-shape with wings,but no wings existed in the tertiary structure of its’ host,Mus musculus(Mm).137aa-200aa, 201aa-218aa,220aa-230aa,232aa-248,269aa-323aa,478aa-501aa and 592aa-606aa domains of P6CPR showed no homology with MmCPRs’,and all domains were exposed on the surface of the protein.Conclusions:NOS can’t be found in Plasmodium berghei and other Plasmodium species.PbCPR may be a possible resistance site of antimalarial drug,and the targets of antimalarial drug and vaccine.It may be also one of the mechanisms of immune evasion.This study on Plasmodium berghei may be more suitable to Plasmodium vivax.And137aa-200aa, 201aa-218aa,220aa-230aa,232aa-248,269aa-323aa,478aa-501aa and 592aa-606aa domains of PbCPR are more ideal targets of antimalarial drug and vaccine.Zhigang Fan Gang Lv Lingmin Zhang Xiufeng Gan Qiang Wu Saifeng Zhong Guogang Yan Guifen Lin 2011Asian Pacific Journal of Tropical Medicine2011,4,1:2
18Noninvasive Ultrasound Stimulation of Ventral Tegmental Area Induces Reanimation from General Anaesthesia in Mice显示文摘Evidence in animals suggests that deep brain stimulation or optogenetics can be used for recovery from disorders of consciousness(DOC).However,these treatments require invasive procedures.This report presents a noninvasive strategy to stimulate central nervous system neurons selectively for recovery from DOC in mice.Through the delivery of ultrasound energy to the ventral tegmental area,mice were aroused from an unconscious,anaesthetized state in this study,and this process was controlled by adjusting the ultrasound parameters.The mice in the sham group under isoflurane-induced,continuous,steady-state general anaesthesia did not regain their righting reflex.On insonation,the emergence time from inhaled isoflurane anaesthesia decreased(sham.13.63±0.53 min,ultrasound.1.5±0.19 min,p<0.001).Further,the induction time(sham.12.0±0.6 min,ultrasound.17.88±0.64 min,p<0.001)and the concentration for 50%of the maximal effect(EC50)of isoflurane(sham.0.6%,ultrasound.0.7%)increased.In addition,ultrasound stimulation reduced the recovery time in mice with traumatic brain injury(sham.30.38±1.9 min,ultrasound.7.38±1.02 min,p<0.01).This noninvasive strategy could be used on demand to promote emergence from DOC and may be a potential treatment for such disorders.Tianyuan Bian Wen Meng Meihong Qiu Zhigang Zhong Zhengrong Lin Junjie Zou Yibo Wang Xiaowei Huang Lisheng Xu Tifei Yuan Zhili Huang Lili Niu Long Meng Hairong Zheng 2021Research2021,,1:2
19The influence of organic sources and environments on source rock deposition during the periods of Cretaceous–Eocene and Oligocene–Miocene,northern Kalimantan显示文摘The sedimentary system of Kalimantan has undergone significant development since the Oligocene.Previous research have largely ignored the capacity of the Cretaceous–Eocene sediments to produce hydrocarbons,focusing instead primarily on the Oligocene–Miocene coal as the principal source rocks.Shales and coals from the outcrops in the northern margin of Kalimantan were analyzed with palynological and geochemical methods to characterize the palaeoenvironmental and palaeoecological differences between the Cretaceous–Eocene and the Oligocene–Miocene samples.The high proportion of Cheirolepidoaceae,Schizaeoisporites and Ephedripites in the pollen assemblage from the Cretaceous–Eocene outcrops reflects an arid tropical/subtropical climate.The relatively low abundances of gymnosperm-derived biomarkers including isopimarane,β-phyllocladane,β-kaurane,suggest the gymnosperm features in flora.High C_(27)/C_(29)ααα20R sterane ratios,(C_(19)–C_(29))tricyclic terpanes/C_(30)αβhopane and extremely low oleanane/C_(30)αβhopane,bicadinane T/C_(30)αβhopane,and diterpenoid abundance indicate that there was a dominance of algae relative to higher plants in the organic matter.The gymnosperm-derived biomarkers,including isopimarane,β-phyllocladane,β-kaurane,suggest that palaeovegetation during this period was dominated by gymnosperms.The saline and reducing conditions in the bathyal and abysmal sea,evidenced by rather low Pr/Ph and high Gammarerane index,are beneficial for the preservation of hydrogen-rich organic matter.It is presumed that the Cretaceous–Eocene shales had great hydrocarbon generation potential in the southern South China Sea.During the period of Oligocene to Miocene in the Zengmu Basin and the Baram-Sabah Basin,the climate changed to a dominant humid and warm condition,which is corroborated by abundant pollen of Florschuetzia and Magnastriatites hawardi.Low C_(27)/C_(29)ααα20R sterane ratios,(C_(19)–C_(29))tricyclic terpanes/C_(30)αβhopane,and high oleanane/C_(30)αβhopane,bicadinane T/C_(30)αβhopane suggest that the palaeovegetation was dominated by angiosperms including the mangrove plants.The extremely abundant higher plants provide ample terrigenous organic matter for the formation of coal-measures in delta facies.The low gammacerane index and high Pr/Ph indicate the fresh and sub-oxic water in delta-neriticabysmal faces,which is not beneficial for the accumulation of hydrogen-rich organic matter.Thus,the Oligocene–Miocene marine argillaceous rocks can be potential sources of natural gas.Lei Lan Youchuan Li Zhigang Zhao Shuchun Yang Qing Lin Weilai Zhang 2023Acta Oceanologica Sinica2023,42,3:2
20Current status and trends in forest genomics显示文摘Forests are not only the most predominant of the Earth's terrestrial ecosystems,but are also the core supply for essential products for human use.However,global climate change and ongoing population explosion severely threatens the health of the forest ecosystem and aggravtes the deforestation and forest degradation.Forest genomics has great potential of increasing forest productivity and adaptation to the changing climate.In the last two decades,the field of forest genomics has advanced quickly owing to the advent of multiple high-throughput sequencing technologies,single cell RNA-seq,clustered regularly interspaced short palindromic repeats(CRISPR)-mediated genome editing,and spatial transcriptomes,as well as bioinformatics analysis technologies,which have led to the generation of multidimensional,multilayered,and spatiotemporal gene expression data.These technologies,together with basic technologies routinely used in plant biotechnology,enable us to tackle many important or unique issues in forest biology,and provide a panoramic view and an integrative elucidation of molecular regulatory mechanisms underlying phenotypic changes and variations.In this review,we recapitulated the advancement and current status of 12 research branches of forest genomics,and then provided future research directions and focuses for each area.Evidently,a shift from simple biotechnology-based research to advanced and integrative genomics research,and a setup for investigation and interpretation of many spatiotemporal development and differentiation issues in forest genomics have just begun to emerge.Dulal Borthakur Victor Busov Xuan Hieu Cao Qingzhang Du Oliver Gailing Fikret Isik Jae-Heung Ko Chenghao Li Quanzi Li Shihui Niu Guanzheng Qu Thi Ha Giang Vu Xiao-Ru Wang Zhigang Wei Lin Zhang Hairong Wei 2022Forestry Research2022,2,1:2
返回顶部 每页显示:
共5页 首页 上一页 第1页 下一页 末页 /5 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费