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枯草芽孢杆菌B2-GFP菌株对甜椒幼苗生长和生理特性的影响

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福建农业学报 2024年第4期39卷 448-455页

作者：赵莉尚烨闫庚洋刘菊张菊平河南科技大学园艺与植物保护学院河南洛阳471000

【目的】筛选能促进甜椒幼苗生长的枯草芽孢杆菌B2-1GFP菌株发酵液适宜浓度,为研发菌肥作用于蔬菜提供依据。【方法】以甜椒硕源808为材料,设置枯草芽孢杆菌B2-1GFP菌株发酵液T1(1×105 CFU·mL^(-1)1)、T2(1×10^(6)CFU·mL^(-1)1)、T... 详细信息

【目的】筛选能促进甜椒幼苗生长的枯草芽孢杆菌B2-1GFP菌株发酵液适宜浓度,为研发菌肥作用于蔬菜提供依据。【方法】以甜椒硕源808为材料,设置枯草芽孢杆菌B2-1GFP菌株发酵液T1(1×105 CFU·mL^(-1)1)、T2(1×10^(6)CFU·mL^(-1)1)、T3(1×10^(7)CFU·mL^(-1)1)、T4(1×10~8 CFU·mL^(-1)1)4个浓度梯度处理,每隔7 d向植株浇灌菌株发酵液,连续浇灌3次,每次每株浇灌5 mL,21 d时测定甜椒幼苗生长指标、生物量积累、叶片光合特性、叶绿素荧光参数、根系抗氧化酶活性、根系形态建成及根系活力指标。【结果】与对照相比,不同浓度枯草芽孢杆菌B2-1GFP菌株发酵液可提高甜椒株高、叶面积、叶绿素含量、植株生物量,以1×10^(6)CFU·mL^(-1)1的增幅最大。同时,该浓度显著提高了叶片蒸腾速率(Tr)、气孔导度(Gs)、最大荧光(Fm)、PSⅡ实际光化学效率(ФPSⅡ)和光化学荧光猝灭系数(qP),降低了胞间CO_(2)浓度(Ci)和叶绿素基础荧光(F_o);提高甜椒根系过氧化物酶(POD)、过氧化氢酶(CAT)、超氧化物歧化酶(SOD)、苯丙氨酸解氨酶(PAL)、多酚氧化酶(PPO)活性及根系活力。【结论】在甜椒移栽后浇灌1×10^(6)CFU·mL^(-1)1B2-1GFP菌株发酵液可促进甜椒植株生长和根系形态建成,增强叶片光合能力,提高生物量积累、根系抗氧化酶活性和根系活力。

关键词：枯草芽孢杆菌甜椒生长生理特性光合特性

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老年药物性肝损伤临床特征及慢性化影响因素

中国老年学杂志 2024年第4期44卷 808-811页

作者：张文涛商红叶关善斌郭卉李再玲薛亚春刘向津张琴天津中医药大学第一附属医院肝胆科国家中医针灸临床医学研究中心天津300380 浙江中医药大学附属嘉兴市中医医院脾胃病科

目的比较老年与非老年人群药物性肝损伤(DILI)临床特点,探讨影响DILI慢性化相关因素。方法采用回顾性研究方法,收集391例DILI患者,分为老年组(60~95岁)129例与非老年(18~59岁)组262例,比较两组首诊基本信息、基础疾病、用药情况、实验... 详细信息

目的比较老年与非老年人群药物性肝损伤(DILI)临床特点,探讨影响DILI慢性化相关因素。方法采用回顾性研究方法,收集391例DILI患者,分为老年组(60~95岁)129例与非老年(18~59岁)组262例,比较两组首诊基本信息、基础疾病、用药情况、实验室检查指标等,诊断为DILI的患者均进行Roussel Uclaf因果关系评估法(RUCAM)评分、肝损伤类型及严重程度分级评分。DILI慢性化危险因素采用多因素Logistic回归分析。结果老年组与非老年组性别、药物种类、肝损伤类型、肝损伤程度、肝功能〔丙氨酸氨基转移酶(ALT)、天冬氨酸氨基转移酶(AST)、碱性磷酸酶(ALP)、γ-谷氨酰转肽酶(GGT)、总胆红素(TBIL)〕、痊愈时间比较无统计学差异(P>0.05)。而在合并基础病(高脂血症、2型糖尿病、高血压)、抗核抗体及病程慢性化比例方面,两组具有统计学差异(P<0.05)。多因素回归分析,纳入年龄、性别、肝损伤程度、肝损伤类型、药物种类、2型糖尿病、高血压、高脂血症构建多因素修正Logistic回归方程,结果发现年龄对DILI的慢性化具有统计学差异(OR=0.94,95%CI 0.92~0.97,P<0.001);高血压对DILI的慢性化具有统计学差异(OR=3.36,95%CI 1.32~8.61,P=0.011)。结论DILI发病率在不断增加,发病年龄呈现低龄化,女性发病比例明显高于男性,老年人群、高血压患者更容易慢性化,需要予以更多关注。

关键词：药物性肝损伤慢性化

吉尔吉斯共和国楚河州库兰德金矿床地质特征及找矿标志

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吉林地质 2024年第2期43卷 10-16页

作者：李可欣王璨沈文峰潘月贺尚冶吉林省第五地质调查所吉林长春130061

吉尔吉斯斯坦境内天山成矿带是整个中亚地区成矿带的重要组成部分,也是连接境内外“中亚金腰带”的核心部位,产出了大量金矿床,库兰德金矿床就是其中之一。矿体受北东向及近东西向矿化蚀变带控制,含黄铁矿化石英脉为直接找矿标志。目前... 详细信息

吉尔吉斯斯坦境内天山成矿带是整个中亚地区成矿带的重要组成部分,也是连接境内外“中亚金腰带”的核心部位,产出了大量金矿床,库兰德金矿床就是其中之一。矿体受北东向及近东西向矿化蚀变带控制,含黄铁矿化石英脉为直接找矿标志。目前共发现主要金矿体6条,主要赋存明特金组下段,矿体主要受南北奥科托尔克伊断裂控制,矿体最大延长852 m,倾向135°~240°,倾角54°~72°。本矿床属于含金蚀变岩型金矿床。

关键词：库兰德金矿中亚金腰带找矿标志吉尔吉斯斯坦

Preharvest application of melatonin induces anthocyanin accumulation and related gene upregulation in red pear (Pyrus ussuriensis)

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Journal of Integrative Agriculture 2021年第8期20卷 2126-2137页

作者： SUN Hui-li WANG Xin-yue shang ye WANG Xiao-qian DU Guo-dong LÜDe-guo College of Horticulture Shenyang Agricultural UniversityShenyang 110866P.R.China Key Laboratory of Fruit Quality Development and Regulation of Liaoning Province Shenyang Agricultural UniversityShenyang 110866P.R.China

Anthocyanins are important components in the peel of red pears and contribute to the appearance of the *** application is known to affect anthocyanin biosynthesis,but the effect of preharvest melatonin application on fruit coloration remains largely *** objective of this study was to determine the effects of preharvest melatonin application on pigmentation,phenolic compounds,and the expression of related genes in Nanhong pear(Pyrus ussuriensis).The applications were performed during the pre-color-change period by spraying 50 or 200μmol L^(-1)of melatonin on *** found that treatment with melatonin had a significant effect on color *** concentrations of anthocyanins and flavonols were enhanced by melatonin treatment,whereas hydroxycinnamate and flavanol concentrations were *** real-time PCR analyses indicated that the transcription levels for most anthocyanin biosynthetic genes and anthocyanin-related transcription factors were induced by *** application also stimulated the expression of melatonin biosynthesis-related genes and consequently caused an increase in endogenous melatonin *** results provide insights into melatonin-induced fruit coloration and will facilitate the application of exogenous melatonin in agriculture.

关键词： melatonin anthocyanin pear phenolic peel pigmentation

糖源对“东方黏虫-异色瓢虫”饲养体系的影响

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中国生物防治学报 2024年第4期40卷 828-833页

作者：吴钰薇商晔郑林浩李姝睿朱立贺张国春李飞武徐文静吉林省农业科学院农业质量标准与检测技术研究所浙江农林大学现代农学院吉林农业大学园艺学院前郭县前郭尔罗斯镇综合服务中心

为了优化“东方黏虫-异色瓢虫”饲养体系中卵粒对异色瓢虫的饲喂效果，同时解决异色瓢虫取食低龄幼虫和高龄幼虫仅交配不产卵的问题。本文在该体系的基础上通过补充蜂蜜、蔗糖和葡萄糖3种水溶液，研究糖源物质对异色瓢虫生长发育及繁殖... 详细信息

为了优化“东方黏虫-异色瓢虫”饲养体系中卵粒对异色瓢虫的饲喂效果，同时解决异色瓢虫取食低龄幼虫和高龄幼虫仅交配不产卵的问题。本文在该体系的基础上通过补充蜂蜜、蔗糖和葡萄糖3种水溶液，研究糖源物质对异色瓢虫生长发育及繁殖的影响。研究结果表明：以卵粒为饲料，添加糖源物质后异色瓢虫世代发育历期显著缩短、繁殖力显著提升，其中以葡萄糖饲喂效果最优（世代发育历期为20.71 d,30d单雌平均产卵量937.00粒）；以低龄幼虫和高龄幼虫为饲料，添加糖源后异色瓢虫出现产卵行为，且均以蜂蜜饲喂繁殖力最强（30 d单雌平均产卵量分别为434.80和645.11粒）。综合试验结果和饲养效果来看，糖源物质对“东方黏虫-异色瓢虫”饲养体系具有促进作用，不仅提升卵粒的饲喂效果，而且解决了取食低龄幼虫和高龄幼虫异色瓢虫仅交配不产卵的问题，优化后能代替“植物-蚜虫-异色瓢虫”的饲养模式。这一体系打破了寄主植物和环境的限制，在异色瓢虫人工饲料的研究中取得突破，为日后室内规模化生产异色瓢虫提供借鉴。

关键词：异色瓢虫东方黏虫糖源生长发育繁殖能力

A FUNCTIONAL CONJUGATED HYPERBRANCHED POLYMER DERIVED FROM TETRAPHENYLETHENE AND OXADIAZOLE MOIETIES:SYNTHESIS BY ONE-POT “A_4+B_2+C_2” POLYMERIZATION AND APPLICAION AS EXPLOSIVE CHEMOSENSOR AND PLED

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Chinese Journal of Polymer Science 2013年第10期31卷 1432-1442页

作者： Wen-bo Wu shang-hui ye Li-jin Huang Gui Yu Yun-qi Liu Jin-gui Qin Zhen Lia Department of Chemistry Hubei Key Lab on Organic and Polymeric Opto-Electronic MaterialsWuhan University Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences

A new conjugated hyperbranched polymer （hb-TFO） containing tetraphenylethylene （TPE） units, a famous aggregation-induced emission （AIE） active group, as the core, was synthesized successfully with modest yield via one-pot Suzuki polymerization reaction. Thanks to the introduction of TPE moieties, hb-TFO exhibited aggregation-enhanced emission （AEE） property, and could work as explosive chemosensor with high sensitivity. The polymeric light-emitting diode （PLED） device was fabricated to investigate its electroluminescent property, and hb-TFO demonstrated a maximum luminance efficiency of 0.22 cd/A and a maximum brightness of 545 cd/m2 at 15.9 V.

关键词： Hyperbranched polymer AEE TPE Explosive chemosensor PLED.

In-situ measurement via the flow-through method and numerical simulations for radon exhalation during measurements of the radon exhalation rate

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Nuclear Science and Techniques 2024年第7期35卷 192-207页

作者： Ming Xia Yong-Jun ye Shan-Wei shang Ting Yu Dai-Jia Chen School of Resources Environment and Safety Engineering University of South ChinaHengyang421001China Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy University of South ChinaHengyang421001China

Small-scale measurements of the radon exhalation rate using the flow-through and closed-loop methods were conducted on the surface of a uranium tailing pond to better understand the differences between the two *** abnormal radon exhalation behavior was observed,leading to computational fluid dynamics(CFD)-based simulations in which dynamic radon migration in a porous medium and accumulation chamber was *** on the in-situ experimental and numerical simulation results,variations in the radon exhalation rate subject to permeability,flow rate,and insertion depth were quantified and *** in-situ radon exhalation rates measured using the flow-through method were higher than those measured using the closed-loop method,which could be explained by the negative pressure difference between the inside and outside of the chamber during the *** consistency of the variations in the radon exhalation rate between the experiments and simulations suggests the reliability of CFD-based techniques in obtaining the dynamic evolution of transient radon exhalation rates for diffusion and convection at the porous medium-air *** synergistic effects of the three factors(insertion depth,flow rate,and permeability)on the negative pressure difference and measured exhalation rate were quantified,and multivariate regression models were established,with positive correlations in most cases;the exhalation rate decreased with increasing insertion depth at a permeability of 1×10^(−11) m^(2).CFD-based simulations can provide theoretical guidance for improving the flow-through method and thus achieve accurate measurements.

关键词： Radon exhalation Flow-through Numerical simulation Accumulation chamber Multivariate regression

Taiji-TianQin-LISA network:Precisely measuring the Hubble constant using both bright and dark sirens

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Science China(Physics,Mechanics & Astronomy) 2024年第2期67卷 59-77页

作者： shang-Jie Jin ye-Zhu Zhang Ji-Yu Song Jing-Fei Zhang Xin Zhang Key Laboratory of Cosmology and Astrophysics(Liaoning)&College of Sciences Northeastern UniversityShenyang 110819China Key Laboratory of Data Analytics and Optimization for Smart Industry(Ministry of Education) Northeastern UniversityShenyang 110819China National Frontiers Science Center for Industrial Intelligence and Systems Optimization Northeastern UniversityShenyang 110819China

In the coming decades,the space-based gravitational-wave(GW)detectors such as Taiji,TianQin,and LISA are expected to form a network capable of detecting millihertz GWs emitted by the mergers of massive black hole binaries(MBHBs).In this work,we investigate the potential of GW standard sirens from the Taiji-TianQin-LISA network in constraining cosmological *** the optimistic scenario in which electromagnetic(EM)counterparts can be detected,we predict the number of detectable bright sirens based on three different MBHB population models,i.e.,popⅢ,Q3d,and *** results show that the TaijiTianQin-LISA network alone could achieve a constraint precision of 0.9%for the Hubble constant,meeting the standard of precision ***,the Taiji-TianQin-LISA network could effectively break the cosmological parameter degeneracies generated by the CMB data,particularly in the dynamical dark energy *** combined with the CMB data,the joint CMB+Taiji-TianQin-LISA data offerσ(w)=0.036 in the wCDM model,which is close to the latest constraint result obtained from the CMB+SN *** also consider a conservative scenario in which EM counterparts are not *** to the precise sky localizations of MBHBs by the Taiji-TianQin-LISA network,the constraint precision of the Hubble constant is expected to reach 1.2%.In conclusion,the GW standard sirens from the Taiji-TianQin-LISA network will play a critical role in helping solve the Hubble tension and shedding light on the nature of dark energy.

关键词： space-based gravitational wave detection standard sirens the Taiji-TianQin-LISA network the Hubble constant dark energy

Preparation of hydrophilic molecularly imprinted polymers for tetracycline antibiotics recognition

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Chinese Chemical Letters 2011年第5期22卷 611-614页

作者： Peng Wang Xiao Fang Fu Jing Li, Jing Luo Xiao Ya Zhao Ming Jun Sun Yin Zhu shang Cheng ye Hubei Entry-Exit Inspection and Quarantine Bureau of PRC Wuhan 430022 China

Hydrophilic molecularly imprinted polymers（MIPs） were prepared using tetracycline as template,methacrylic acid as monomer and glycidilmethacrylate as pro-hydrophilic *** with common MIPs,the imprinting effect and adsorption amounts of hydrophilic MIPs for tetracycline（TC） were greatly improved in water ***,the electrochemical sensor fabricated by modifying hydrophilic MIPs on glassy carbon electrode was developed for the determination of TC in foodstuff samples.

关键词： Hydrophilic molecularly imprinted polymers Electrochemical sensor Tetracycline antibiotics Foodstuff samples