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Effects and fate of metal-based engineered nanomaterials in soil ecosystem: A review

Pedosphere 2024年第5期34卷 843-852页

作者： qibin wang Peng ZHANG Weichen ZHAO Shakoor NOMAN Adeel MUHAMMAD Guikai ZHU Yi SUN Quanlong wang Yaqi JIANG Yukui RUI Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation College of Resources and Environmental Sciences China Agricultural University Department of Environmental Science and Engineering University of Science and Technology of China School of Geography Earth and Environmental Sciences University of Birmingham BNU-HKUST Laboratory of Green Innovation Advanced Institute of Natural Sciences Beijing Normal University at Zhuhai China Agricultural University Professor Workstation of Yuhuangmiao Town China Agricultural University Professor Workstation of Sunji Town

Metal-based engineered nanomaterials (MENMs) are increasingly being used in people’s working lives. Although MENMs have important effects on soil ecosystem and play an important role in solving soil environmental problems, the hazards associated with MENMs cannot be ignored. Therefore, more and more scholars have studied the behavior and effects of nanomaterials in soils in recent years. In this review, we explore the articles on MENMs and soil ecosystem retrieved from various databases from 2013 to 2022. We discuss the mechanisms of MENM toxicity, the current state of soil ecosystem, the ecological effects of MENMs on soil microbes, earthworms, and plants, and the ways by which soil organisms take up MENMs. We now know that although MENMs have positive effects on soil ecosystem, their potential hazards are not negligible. Therefore, it is necessary to investigate the effects of MENMs on soil organisms. Meanwhile, we should pay more attention to the negative effects of MENMs on soil ecosystem while exploring their positive effects on soil ecosystem in future research.

关键词： earthworm nanomaterial migration and transformation nanotechnology plant soil microorganism toxicity

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Modulation of starch synthesis in Arabidopsis via phytochrome B-mediated light signal transduction

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Journal of Integrative Plant Biology 2024年第5期66卷 973-985页

作者： Qingbiao Shi Ying Xia Na Xue qibin wang Qing Tao Mingjing Li Di Xu Xiaofei wang Fanying Kong Haisen Zhang Gang Li National Key Laboratory of Wheat Improvement College of Life SciencesShandong Agricultural UniversityTai'an 271018China National Key Laboratory of Wheat Improvement College of AgronomyShandong Agricultural UniversityTai'an 271018China

Starch is a major storage carbohydrate in plants and is critical in crop yield and *** synthesis is intricately regulated by internal metabolic processes and external environmental cues;however,the precise molecular mechanisms governing this process remain largely *** this study,we revealed that high red to far-red(high R:FR)light significantly induces the synthesis of leaf starch and the expression of synthesis-related genes,whereas low R:FR light suppress these *** phytochrome B(phyB),the primary R and FR photoreceptor,was identified as a critical positive regulator in this *** of phyB,basic leucine zipper transcription factor ELONGATED HYPOCOTYL5(HY5)was found to enhance starch synthesis,whereas the basic helix-loop-helix transcription factors PHYTOCHROME INTERACTING FACTORs(PIF3,PIF4,and PIF5)inhibit starch synthesis in Arabidopsis ***,HY5 and PIFs directly compete for binding to a shared G-box cis-element in the promoter region of genes encoding starch synthases GBSS,SS3,and SS4,which leads to antagonistic regulation of their expression and,consequently,starch *** findings highlight the vital role of phyB in enhancing starch synthesis by stabilizing HY5 and facilitating PIFs degradation under high R:FR light ***,under low R:FR light,PIFs predominantly inhibit starch *** study provides insight into the physiological and molecular functions of phyB and its downstream transcription factors HY5 and PIFs in starch synthesis regulation,shedding light on the regulatory mechanism by which plants synchronize dynamic light signals with metabolic cues to module starch synthesis.

关键词： Arabidopsis thaliana HY5 light signal phyB PIFs starch synthesis

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Phytochrome B interacts with LIGULELESS1 to control plant architecture and density tolerance in maize

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Molecular Plant 2024年第8期17卷 1255-1271页

作者： Qingbiao Shi Ying Xia qibin wang Kaiwen Lv Hengjia Yang Lianzhe Cui Yue Sun Xiaofei wang Qing Tao Xiehai Song Di Xu Wenchang Xu Xingyun wang Xianglan wang Fanying Kong Haisen Zhang Bosheng Li Pinghua Li Haiyang wang Gang Li State Key Laboratory of Wheat Improvement College of Life SciencesShandong Agricultural UniversityTai'an 271018China State Key Laboratory of Wheat Improvement College of AgronomyShandong Agricultural UniversityTai'an 271018China Peking University Institute of Advanced Agricultural Sciences Shandong Laboratory of Advanced Agricultural Sciences at WeifangWeifangShandong 261000China Guandong Laboratory for Lingnan Modern Agriculture State Key Laboratory for Conservation and Utilization of Subtropical Agro-BioresourcesSouth China Agricultural UniversityGuangzhou510642China

Over the past few decades,significant improvements in maize yield have been largely attributed to increased plant density of upright hybrid varieties rather than increased yield per ***,dense planting triggers shade avoidance responses(SARs)that optimize light absorption but impair plant vigor and performance,limiting yield improvement through increasing plant *** this study,we demonstrated that high-density-induced leaf angle narrowing and stem/stalk elongation are largely dependent on phytochrome B(phyB1/B2),the primaryphotoreceptor responsible for perceiving red(R)and far-red(FR)light in *** found that maize phyB physically interacts with the LIGULELESS1(LG1),a classical key regulator of leaf angle,to coordinately regulate plant architecture and density *** abundance of LG1 is significantly increased by phyB under high R:FR light(low density)but rapidly decreases under low R:FR light(high density),correlating with variations in leaf angle and plant height under various *** addition,we identified the homeobox transcription factor HB53 as a target co-repressed by both phyB and LG1 but rapidly induced by canopy *** and cellular analyses showed that HB53 regulates plant architecture by controlling the elongation and division of ligular adaxial and abaxial *** together,these findings uncover the phyB-LG1-HB53 regulatory module as a key molecular mechanism governing plant architecture and density tolerance,providing potential genetic targets for breeding maize hybrid varieties suitable for high-density planting.

关键词： maize phytochrome B LIGULELESS1 HB53 leaf angle density tolerance

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Histological and single-nucleus transcriptome analyses reveal the specialized functions of ligular sclerenchyma cells and key regulators of leaf angle in maize

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Molecular Plant 2024年第6期17卷 920-934页

作者： qibin wang Qiuyue Guo Qingbiao Shi Hengjia Yang Meiling Liu Yani Niu Shuxuan Quan Di Xu Xiaofeng Chen Laiyi Li Wenchang Xu Fanying Kong Haisen Zhang Pinghua Li Bosheng Li Gang Li State Key Laboratory of Wheat Improvement College of Life SciencesShandong Agricultural UniversityTai’an 271018China Peking University Institute of Advanced Agricultural Sciences Shandong Laboratory of Advanced Agriculture Sciences in WeifangWeifangShandong 261325China State Key Laboratory of Wheat Improvement College of AgronomyShandong Agricultural UniversityTai’an 271018China

Leaf angle(LA)is a crucial factor that affects planting density and yield in ***,the regulatory mechanisms underlying LA formation remain largely *** this study,we performed a comparative histological analysis of the ligular region across various maize inbred lines and revealed that LA is significantly influenced by a two-step regulatory process involving initial cell elongation followed by subsequent lignification in the ligular adaxial sclerenchyma cells(SCs).Subsequently,we performed both bulk and single-nucleus RNA sequencing,generated a comprehensive transcriptomic atlas of the ligular region,and identified numerous genes enriched in the hypodermal cells that may influence their specialization into ***,we functionally characterized two genes encoding atypical basic-helix-loop-helix(bHLH)transcription factors,bHLH30 and its homolog bHLH155,which are highly expressed in the elongated adaxial *** analyses revealed that bHLH30 and bHLH155 positively regulate LA expansion,and molecular experiments demonstrated their ability to activate the transcription of genes involved in cell elongation and lignification of *** findings highlight the specialized functions of ligular adaxial SCs in LA regulation by restricting further extension of ligular cells and enhancing mechanical *** transcriptomic atlas of the ligular region at single-nucleus resolution not only deepens our understanding of LA regulation but also enables identification of numerous potential targets for optimizing plant architecture in modern maize breeding.

关键词： planting specialized angle

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医用胶与栓塞微球介入栓塞治疗大咯血临床效果对比分析

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介入放射学杂志 2024年第8期33卷 844-848页

作者：蒋力平王启斌石河子大学第一附属医院介入诊断治疗科新疆石河子832000

目的对比分析医用胶栓塞与微球栓塞在大咯血患者血管介入治疗中的有效性和安全性。方法收集2019年5月至2023年4月因咯血收住于石河子大学第一附属医院、经内科药物治疗效果不佳并经医用胶与微球栓塞治疗的77例患者临床资料。其中医用胶... 详细信息

目的对比分析医用胶栓塞与微球栓塞在大咯血患者血管介入治疗中的有效性和安全性。方法收集2019年5月至2023年4月因咯血收住于石河子大学第一附属医院、经内科药物治疗效果不佳并经医用胶与微球栓塞治疗的77例患者临床资料。其中医用胶组39例,微球组38例。对比分析两组患者止血疗效、不良反应、栓塞材料费用、血管栓塞成功率及复通情况。结果医用胶组、微球组术后止血疗效分别为显效27例(69.2%)、22例(57.9%),有效9例(23.1%)、10例(26.3%),无效3例(7.7%)、6例(15.8%),总有效率分别为92.3%、84.2%,差异无统计学意义(P=0.461);术后胸背痛分别为8例(20.5%)、3例(7.9%),胸闷分别为2例(5.1%)、4例(13.2%),皮下血肿分别为1例(2.6%)、0,失语分别为0、1例(2.6%),经对症处理后所有患者均缓解恢复,两组间不良反应差异无统计学意义(P=0.234);术中所用栓塞材料费用分别为(8605.7±4077.8)元、(10414.5±3571.2)元,差异有统计学意义(P=0.014)。医用胶组成功栓塞责任血管204支,技术成功率为100%,高于微球组90.8%(121/133),差异有统计学意义(P<0.01)。医用胶组复发咯血3例(7.7%),低于微球组11例(28.9%),差异有统计学意义(P<0.01)。医用胶组栓塞血管无复通,微球组复通率为9.1%(11/121),差异有统计学意义(P<0.01)。结论采用医用胶与微球栓塞治疗大咯血患者均安全有效。医用胶与微球相比血管栓塞成功率更高,咯血复发率、血管复通率、术中所用介入栓塞材料费用更低,在大咯血介入治疗中具有一定优势,值得临床推广应用。

关键词：咯血支气管动脉医用胶栓塞微球介入栓塞

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超大型浮式旅游平台运动和波浪载荷性能研究

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中国造船 2024年第2期65卷 112-124页

作者：王琦彬何春荣程小明张欣玉丁军倪歆韵中国船舶科学研究中心无锡214082 深海技术科学太湖实验室无锡214082

基于多连通域浮体水弹性响应分析方法,对浮箱构型和浮箱-半潜式混合构型的超大型浮式旅游平台概念设计方案在波浪中的运动和波浪载荷性能开展研究。对两种方案在波浪中的运动响应、作业工况下平台的加速度和低频振动舒适度、生存工况下... 详细信息

基于多连通域浮体水弹性响应分析方法,对浮箱构型和浮箱-半潜式混合构型的超大型浮式旅游平台概念设计方案在波浪中的运动和波浪载荷性能开展研究。对两种方案在波浪中的运动响应、作业工况下平台的加速度和低频振动舒适度、生存工况下波浪载荷进行对比与分析,并提出了基于局部结构特征载荷的等效设计波参数的确定方法。研究可为大型多连通域海上浮式平台的运动和波浪载荷评估,以及构型优化设计提供指导。

关键词：旅游平台超大型浮体水弹性运动响应波浪载荷

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地下室底板抗浮锚杆的受力分析

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福建建设科技 2024年第1期 110-113,125页

作者：汪启斌福建省建筑设计研究院有限公司福建福州350001

结合具体工程案例,从地下室底板抗浮锚杆的设置情况出发,阐述了锚杆的受力变形分析方法,开展了相应的计算和对比,并对考虑锚杆等效弹簧刚度的底板计算方法进行了分析与讨论,以供参考。

关键词：地下室底板抗浮锚杆受力分析

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Simultaneous denitrification and denitrifying phosphorus removal in a full-scale anoxic–oxic process without internal recycle treating low strength wastewater

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Journal of Environmental Sciences 2016年第1期28卷 175-183页

作者： qibin wang Qiuwen Chen State Key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Center for Eco-Environmental Research Nanjing Hydraulic Research Institute

Performance of a full-scale anoxic-oxic activated sludge treatment plant（4.0×10-5 m-3/day for the first-stage project） was followed during a *** plant performed well for the removal of carbon,nitrogen and phosphorus in the process of treating domestic wastewater within a temperature range of 10.8℃ to 30.5℃.Mass balance calculations indicated that COD utilization mainly occurred in the anoxic phase,accounting for 88.2% of total COD *** nitrogen removal occurred 13.71% in the anoxic zones and 78.77% in the aerobic *** contribution of anoxic zones to total nitrogen（TN） removal was 57.41%.Results indicated that nitrogen elimination in the oxic tanks was mainly contributed by simultaneous nitrification and denitrification（SND）.The reduction of phosphorus mainly took place in the oxic zones,51.45% of the total *** phosphorus removal was achieved biologically by 11.29%.Practical experience proved that adaptability to gradually changing temperature of the microbial populations was important to maintain the plant overall *** changes in temperature did not cause paralysis of the system just lower removal efficiency,which could be explained by functional redundancy of microorganisms that may compensate the adverse effects of temperature changes to a certain ***-oxic process without internal recycling has great potential to treat low strength wastewater（i.e.,TN 〈 35 mg/L） as well as reducing operation costs.

关键词： Wastewater treatment Biological nutrient removal Simultaneous nitrification and denitrification Denitrifying phosphorus removal

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Uncertainty analyses on the calculation of water environmental capacity by an innovative holistic method and its application to the Dongjiang River

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Journal of Environmental Sciences 2014年第9期26卷 1783-1790页

作者： Qiuwen Chen qibin wang Zhijie Li Ruonan Li Center for Eco-Environmental Research Nanjing Hydraulic Research Institute State Key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-Environmental SciencesChinese Academy of sciences

The estimation and allocation of water environmental capacity （WEC） are essential to water quality management and social-economic interests. However, there is inevitable uncertainty in the capacity estimation due to model conceptualization, data collection and parameter calibration. An innovative holistic approach was developed, which took both independence and relevance between parameters into account to analyze the uncertainties in WEC calculation and estimate the margin of safety. The Doniang River was taken as the case to demonstrate the method, focusing on the chemical oxygen demand and NH-N that were the two major water quality problems in the river. The results showed that the proposed holistic approach is very promising and applicable compared to traditional methods of uncertainty analysis.

关键词： Water environmental capacityModel uncertaintyHolistic approachDon^iang River

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换流变压器铁心夹件接地电流谐波特性分析

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广东电力 2024年第3期37卷 90-97页

作者：苗彭王启斌武文杰占南林枫长园共创监测技术(南京)有限公司江苏南京210003 江苏师范大学科文学院江苏徐州221116

为了解决仅依据接地电流的全电流值无法准确有效判断换流变压器的检修状态问题,以及更深入探究换流变压器铁心、夹件接地电流的特性,采用汉宁窗插值快速傅里叶变换算法对采样信号进行谐波分析,得到接地电流基波和2~50次谐波的幅值及含... 详细信息

为了解决仅依据接地电流的全电流值无法准确有效判断换流变压器的检修状态问题,以及更深入探究换流变压器铁心、夹件接地电流的特性,采用汉宁窗插值快速傅里叶变换算法对采样信号进行谐波分析,得到接地电流基波和2~50次谐波的幅值及含有率。对比分析基波与全电流的变化趋势,以及不同时刻接地电流的全电流、基波、谐波数据,得到谐波幅值变化幅度,进一步揭示换流变压器铁心、夹件接地电流值过大和跳动的问题,为判断换流变压器铁心、夹件接地电流状态与变压器运行状况提供新的思路。

关键词：换流变压器铁心夹件谐波接地电流基波

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