检索结果-南通市图书馆

Effect of synergistic urea by nitrification inhibitor coated with resin on wheat growth and soil nitrogen supply

Pedosphere 2024年第5期34卷 960-970页

作者： Yaru GE Yu LI yuanjie dong Mingrong HE Xinglong DAI College of Resources and Environment Shandong Agricultural University Agronomy College Shandong Agricultural University

Combining nitrification inhibitor and urea can improve crop yield and nitrogen (N) use efficiency (NUE). However, the inhibitor easily gets inactivated in soil, making it difficult to achieve the desired effect. To develop a synergistic urea for increasing the inhibitor action time, soil N supply, and wheat growth,dicyandiamide (DCD) was coated after granulation with epoxy resin and then mixed with urea to develop new resin-coated DCD (RCD) synergistic *** electron microscopy (SEM) and hydrostatic release tests were used to evaluate the membrane microstructure and the controlled-release performance of RCD. Five fertilization treatments were set up in the field:zero-N control (CK), urea (U), urea+common DCD particles (SUD1), urea+RCD (SUD2),and urea+both common DCD particles and RCD (3:7, weight/weight)(SUD3) to investigate the effects of the DCD synergistic urea on wheat growth, yield,and NUE and soil available N content. The SEM results showed that RCD had a complete coating, smooth surface, and small and rugged channels for DCD release in the profile. The hydrostatic release test at 25?C showed that the release period of DCD was extended to ten days due to resin coating. In the three DCD synergistic urea treatments, only SUD3 resulted in a significant increase in wheat yield (18.47%) compared with U. The NUE in SUD3 was significantly higher than those in SUD2, U, and SUD1. The treatment SUD3 had higher soil available N content than the other treatments during the key wheat growth stages, while effectively reducing the risk of soil nitrate leaching during wheat maturity. In summary, SUD3, a mixture of urea, DCD particles, and RCD, was the best treatment for significantly increasing wheat growth, yield, and NUE and soil N supply.

关键词： coated DCD controlled-release fertilizer N fertilizer N use efficiency soil available N wheat yield

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Mechanisms of Exogenous Nitric Oxide and 24-Epibrassinolide Alleviating Chlorosis of Peanut Plants Under Iron Deficiency

引用

Pedosphere 2018年第6期28卷 926-942页

作者： SONG Yiling dong yuanjie TIAN Xianyi WANG Wanwan Zhenli HE College of Resources and Environment National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Shandong Agricultural University Indian River Research and Education Center Institute of Food and Agricultural Sciences University of Florida

Iron(Fe) is a crucial transition metal for all living organisms including plants; however, Fe deficiency frequently occurs in plant because only a small portion of Fe is bioavailable in soil in recent years. To cope with Fe deficiency, plants have evolved a wide range of adaptive responses from changes in morphology to altered physiology. To understand the role of nitric oxide(NO) and 24-epibrassinolide(EBR) in alleviating chlorosis induced by Fe deficiency in peanut(Arachis hypogaea L.) plants, we determined the concentration of chlorophylls, the activation, uptake, and translocation of Fe, the activities of key enzymes, such as ferric-chelate reductase(FCR),proton-translocating adenosine triphosphatase(H^+-ATPase), and antioxidant enzymes, and the accumulation of reactive oxygen species(ROS) and malondialdehyde(MDA) of peanut plants under Fe sufficiency(100 μmol L^(-1)ethylenediaminetetraacetic acid(EDTA)-Fe) and Fe deficiency(0 μmol L^(-1)EDTA-Fe). We also investigated the production of NO in peanut plants subjected to Fe deficiency with foliar application of sodium nitroprusside(SNP), a donor of NO, and/or EBR. The results showed that Fe deficiency resulted in severe chlorosis and oxidative stress, significantly decreased the concentration of chlorophylls and active Fe, and significantly increased NO production. Foliar application of NO and/or EBR increased the activity of antioxidant enzymes, superoxide dismutase,peroxidase, and catalase, and decreased the ROS and MDA concentrations, thus enhancing the resistance of plants to oxidative *** of NO also significantly increased Fe translocation from the roots to the shoots and enhanced the transfer of Fe from the cell wall fraction to the cell organelle and soluble fractions. Consequently, the concentrations of available Fe and chlorophylls in the leaves were elevated. Furthermore, the activities of H^+-ATPase and FCR were enhanced in the Fe-deficient plants. Simultaneously,there was a significant in

关键词： active iron antioxidant enzyme subcellular structure chlorophyll oxidative stress reactive oxygen species sodium nitroprusside

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Measure synchronization in hybrid quantum-classical systems

引用

Chinese Physics B 2022年第12期31卷 111-116页

作者： Haibo Qiu yuanjie dong Huangli Zhang Jing Tian School of Science Xi’an University of Posts and TelecommunicationsXi’an 710121China

Measure synchronization in hybrid quantum-classical systems is investigated in this *** dynamics of the classical subsystem is described by the Hamiltonian equations,while the dynamics of the quantum subsystem is governed by the Schr¨odinger *** increasing the coupling strength in between the quantum and classical subsystems,we reveal the existence of measure synchronization in coupled quantum-classical dynamics under energy conservation for the hybrid systems.

关键词： measure synchronization quantum measure synchronization hybrid quantum-classical systems

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Effects of Exogenous Nitric Oxide and 24-Epibrassinolide on the Physiological Characteristics of Peanut Seedlings Under Cadmium Stress

引用

Pedosphere 2019年第1期29卷 45-59页

作者： dong yuanjie CHEN Weifeng BAI Xiaoying LIU Fengzhen WAN Yongshan College of Resources and Environment National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Shandong Agricultural University College of Agronomic Sciences Shandong Agricultural University

Cadmium(Cd) is highly toxic to plants, animals, and humans. Limited information is available on the role of nitric oxide(NO)and/or 24-epibrassinolide(EBR) in response of plants to Cd stress. In this study, a hydroponic experiment was performed to investigate the effects of NO and/or EBR on peanut plants subjected to Cd stress(200 μmol L^(-1)) with sodium nitroprusside(SNP, an exogenous NO donor)(250 μmol L^(-1)) and/or EBR(0.1 μmol L^(-1)) addition. The results showed that Cd exposure inhibited plant growth, and this stress was alleviated by exogenous NO or EBR, and especially the combination of the two. Treatment with Cd inhibited the growth of peanut seedlings, decreased chlorophyll content, and significantly increased the Cd concentration in plants. Furthermore, the concentration of reactive oxygen species(ROS) markedly increased in peanut seedlings under Cd stress, resulting in the accumulation of malondialdehyde(MDA) and proline in leaves and roots. Under Cd stress, applications of SNP, EBR, and especially the two in combination significantly reduced the translocation of Cd from roots to leaves, increased the chlorophyll content, decreased the concentrations of ROS, MDA, and proline, and significantly enhanced the activities of superoxide dismutase(SOD), peroxidase(POD), and catalase(CAT) in peanut seedlings. Exogenous NO and/or EBR also stimulated the activities of nitrate reductase(NR)and nitric oxide synthase(NOS) and increased the contents of antioxidants, such as ascorbic acid(AsA) and reduced glutathione(GSH). Furthermore, exogenous NO and/or EBR enhanced Cd accumulation in the cell wall and thus decreased Cd distribution in the organelles in the roots. The concentrations of calcium(Ca), iron(Fe), magnesium(Mg), and zinc(Zn) were also regulated by exogenous NO or EBR, and especially by the two in combination. These results indicated that SNP and EBR, alone and particularly in combination, can mitigate the negative effects of Cd stress in peanut plants.

关键词： antioxidant system cadmium toxicity cadmium translocation cadmium uptake heary metal mineral element sodium nitroprusside

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

新型钙镁硅复合无机材料对盐胁迫下小麦幼苗生长的影响

引用

河北科技师范学院学报 2024年第1期38卷 29-36页

作者：龙海婷荆桂花鹿美航杨志峰董元杰山东农业大学资源与环境学院/土肥资源高效利用国家工程研究中心山东泰安271018 淄博华源新材料有限公司烟台市农业综合执法支队

为确定新型钙镁硅复合无机材料(IM)对盐(NaCl)胁迫下小麦幼苗生长的影响,采用液培法,通过在营养液中添加IM,制备了ρ(IM)=3.15,6.30,9.45,12.60,15.75 g·L^(-1)的5种培养液,进行了不同添加量的IM对盐胁迫下小麦幼苗生长与生理特性影响... 详细信息

为确定新型钙镁硅复合无机材料(IM)对盐(NaCl)胁迫下小麦幼苗生长的影响,采用液培法,通过在营养液中添加IM,制备了ρ(IM)=3.15,6.30,9.45,12.60,15.75 g·L^(-1)的5种培养液,进行了不同添加量的IM对盐胁迫下小麦幼苗生长与生理特性影响的试验。结果表明:盐胁迫显著抑制了小麦幼苗的生长,添加IM能有效缓解小麦幼苗的盐胁迫效应,其中以ρ(IM)=12.60 g·L^(-1)的处理能显著促进盐胁迫下小麦幼苗的生长,降低盐胁迫下小麦幼苗根系与叶片的丙二醛质量摩尔浓度和超氧阴离子产生速率,增加叶片和根系的可溶性蛋白质量分数和抗氧化酶活性,并显著提高游离脯氨酸质量分数。

关键词：钙镁硅复合无机材料小麦幼苗盐胁迫生长与生理特性

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Enhanced autophagic clearance of amyloid-βvia histone deacetylase 6-mediated V-ATPase assembly and lysosomal acidification protects against Alzheimer's disease in vitro and in vivo

引用

Neural Regeneration Research 2025年第9期20卷 2633-2644页

作者： Zhimin Long Chuanhua Ge Yueyang Zhao yuanjie Liu Qinghua Zeng Qing Tang Zhifang dong Guiqiong He Institute of Neuroscience School of Basic Medical SciencesChongqing Medical UniversityChongqingChina Department of Anatomy Chongqing Medical UniversityChongqingChina Department of Physiology Chongqing Medical UniversityChongqingChina Pediatric Research Institute Children’s Hospital of Chongqing Medical UniversityChongqingChina Ministry of Education Key Laboratory of Child Development and Disorders Children’s Hospital of Chongqing Medical UniversityChongqingChina National Clinical Research Center for Child Health and Disorders Children’s Hospital of Chongqing Medical UniversityChongqingChina Chongqing Key Laboratory of Child Neurodevelopment and Cognitive Disorders Children’s Hospital of Chongqing Medical UniversityChongqingChina

Recent studies have suggested that abnormal acidification of lysosomes induces autophagic accumulation of amyloid-βin neurons,which is a key step in senile plaque ***,resto ring normal lysosomal function and rebalancing lysosomal acidification in neurons in the brain may be a new treatment strategy for Alzheimer's *** acetylation/deacetylation plays a central role in lysosomal ***,we show that inhibiting the classic microtubule deacetylase histone deacetylase 6 with an histone deacetylase 6 shRNA or thehistone deacetylase 6 inhibitor valproic acid promoted lysosomal reacidification by modulating V-ATPase assembly in Alzheimer's *** rthermore,we found that treatment with valproic acid markedly enhanced *** clearance of amyloid-βaggregates,and ameliorated cognitive deficits in a mouse model of Alzheimer's *** findings demonstrate a previously unknown neuroprotective mechanism in Alzheimer's disease,in which histone deacetylase 6 inhibition by valproic acid increases V-ATPase assembly and lysosomal acidification.

关键词： Alzheimer's disease amyloid-β APP/PS1 mice autophagy cognitive impairment histone deacetylase 6 lysosomal acidification microtubule acetylation valproic acid V-ATPase

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Enhanced autophagic clearance of amyloid-β via histone deacetylase 6-mediated V-ATPase assembly and lysosomal acidification protects against Alzheimer's disease in vitro and in vivo

引用

Neural Regeneration Research 2025年第09期 2633-2644页

作者： Zhimin Long Chuanhua Ge Yueyang Zhao yuanjie Liu Qinghua Zeng Qing Tang Zhifang dong Guiqiong He Institute of Neuroscience School of Basic Medical Sciences Chongqing Medical University Department of Anatomy Chongqing Medical University Department of Physiology Chongqing Medical University Pediatric Research Institute Children's Hospital of Chongqing Medical University Ministry of Education Key Laboratory of Child Development and Disorders Children's Hospital of Chongqing Medical University National Clinical Research Center for Child Health and Disorders Children's Hospital of Chongqing Medical University Chongqing Key Laboratory of Child Neurodevelopment and Cognitive Disorders Children's Hospital of Chongqing Medical University

Recent studies have suggested that abnormal acidification of lysosomes induces autophagic accumulation of amyloid-β in neurons,which is a key step in senile plaque ***,resto ring normal lysosomal function and rebalancing lysosomal acidification in neurons in the brain may be a new treatment strategy for Alzheimer's *** acetylation/deacetylation plays a central role in lysosomal ***,we show that inhibiting the classic microtubule deacetylase histone deacetylase 6 with an histone deacetylase 6 shRNA or thehistone deacetylase 6 inhibitor valproic acid promoted lysosomal reacidification by modulating V-ATPase assembly in Alzheimer's *** rthermore,we found that treatment with valproic acid markedly enhanced *** clearance of amyloid-β aggregates,and ameliorated cognitive deficits in a mouse model of Alzheimer's *** findings demonstrate a previously unknown neuroprotective mechanism in Alzheimer's disease,in which histone deacetylase 6 inhibition by valproic acid increases V-ATPase assembly and lysosomal acidification.

关键词：

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

碳量子点缓解黑麦草镉胁迫的效应与机制

引用

中国草地学报 2023年第6期45卷 23-31页

作者：王欢欢董元杰山东农业大学资源与环境学院/土肥高效利用国家工程研究中心山东泰安271018

为研究碳量子点(Carbon quantum dots,CDs)对镉(Cadmium,Cd)胁迫下黑麦草生长的缓解效应与机制,本文采用液培法,研究了CDs(150 mg/L)对两个浓度Cd(50和100μmol/L Cd Cl2)胁迫下黑麦草生理特性的影响。结果表明:两个浓度的Cd胁迫均抑制... 详细信息

为研究碳量子点(Carbon quantum dots,CDs)对镉(Cadmium,Cd)胁迫下黑麦草生长的缓解效应与机制,本文采用液培法,研究了CDs(150 mg/L)对两个浓度Cd(50和100μmol/L Cd Cl2)胁迫下黑麦草生理特性的影响。结果表明:两个浓度的Cd胁迫均抑制了黑麦草的生长,使黑麦草鲜重和干重分别降低了15.2%~23.4%和18.8%~21.9%。添加150 mg/L CDs能够有效缓解黑麦草的Cd胁迫效应,与Cd处理相比,两浓度Cd胁迫下添加CDs提高黑麦草鲜重8.5%~17.3%,提高干重28.0%~30.8%,并明显提高了黑麦草根系活力、光合色素含量、可溶性蛋白含量和多种抗氧化酶的活性,降低了丙二醛含量、电解质渗出率、H_(2)O_(2)含量和O_(2)^(·-)产生速率,增加植株体内钙含量,减少了黑麦草叶片Cd含量17.8%~26.3%,减少根系Cd含量8.1%。表明外源CDs能缓解黑麦草的Cd胁迫效应,降低Cd胁迫带来的生长抑制,增加黑麦草对钙的吸收,从而减少黑麦草对Cd的吸收,诱导其耐Cd性的增强,本研究可为CDs作为新型Cd污染土壤修复剂提供依据。

关键词：碳量子点土壤镉污染黑麦草植物修复

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

粉煤灰作土壤侵蚀的磁示踪剂研究初报

引用

土壤学报 2006年第1期43卷 155-159页

作者：董元杰史衍玺山东农业大学资源与环境学院山东泰安271018

自1954年召开的第五次国际土壤学会代表大会上介绍了土壤磁性研究工作，磁化率在环境科学研究中得到了广泛应用。一些学者讨论了沉积物磁性与物源之间的关系，并将其用于河流底移质泥沙运动和沉积物来源的示踪。该方法的优点是简便易行... 详细信息

自1954年召开的第五次国际土壤学会代表大会上介绍了土壤磁性研究工作，磁化率在环境科学研究中得到了广泛应用。一些学者讨论了沉积物磁性与物源之间的关系，并将其用于河流底移质泥沙运动和沉积物来源的示踪。该方法的优点是简便易行，省时省力、廉价，对大、小土壤团聚体、泥沙均适用，近来此法用于监测和评估山坡地的土壤侵蚀和沉积也有成功的先例。本文选择粉煤灰施人土壤中作为磁示踪剂，研究坡面土壤侵蚀，取得了初步成果

关键词：粉煤灰土壤侵蚀磁示踪剂

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

外源NO缓解花生盐胁迫的效果及机理

引用

中国农业大学学报 2020年第12期25卷 30-39页

作者：朱营营张倩董元杰山东农业大学资源与环境学院/土肥资源高效利用国家工程实验室山东泰安271018

为研究外源一氧化氮(NO)对盐胁迫下花生幼苗生长的影响,以‘山花11号’为供试材料,采用液体培养试验,测定外源NO供体硝普钠(SNP)250μmol/L对正常生长(0mmol/L NaCl,CK)和盐胁迫(100mmol/L NaCl,T1和150mmol/L NaCl,T2)处理的花生幼苗... 详细信息

为研究外源一氧化氮(NO)对盐胁迫下花生幼苗生长的影响,以‘山花11号’为供试材料,采用液体培养试验,测定外源NO供体硝普钠(SNP)250μmol/L对正常生长(0mmol/L NaCl,CK)和盐胁迫(100mmol/L NaCl,T1和150mmol/L NaCl,T2)处理的花生幼苗生长及生理指标。结果表明,正常生长条件下添加SNP,花生内源NO浓度升高对幼苗生长产生轻微毒害作用;盐胁迫下添加SNP能有效增强花生幼苗耐盐性,且外源NO对花生幼苗盐胁迫的缓解作用受外界盐浓度影响,花生遭受较高盐浓度胁迫时NO缓解膜脂过氧化损伤的效率更高,耐盐性更强;在本试验的浓度范围内,外源NO对150mmol/L NaCl胁迫下的花生幼苗缓解效应更优。与T2处理相比,T5处理下的花生,叶片和根系的内源NO含量分别增加41.83%和35.45%。NO能显著提高花生体内抗氧化酶活性和渗透调节物质含量,叶片的SOD活性、POD活性、CAT活性和APX活性分别提升9.84%、64.82%、91.84%和26.09%,游离脯氨酸含量提升60.73%;降低体内丙二醛(MDA)和活性氧(ROS)的含量,使叶片电解质外渗率降低17.61%,有效减轻膜脂过氧化损伤;增加花生幼苗株高、鲜重、干重及叶绿素总含量,提高根系活力,有效缓解盐胁迫对花生幼苗生长的抑制作用。因此,正常条件下添加SNP不利于花生生长;但盐胁迫下添加SNP能显著提高花生苗期耐盐性,且外源NO缓解较高浓度盐胁迫对花生生长影响的效果更优。

关键词：花生一氧化氮盐胁迫生理特性机理

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：