检索结果-南通市图书馆

Cellular senescence: is the problem a solution for muscle repair?

Cellular & Molecular Immunology 2023年第5期20卷 429-431页

作者： Jose M.Izquierdo Centro de Biologia Molecular Severo Ochoa Consejo Superior de Investigaciones CientificasUniversidad Autonoma de Madrid(CSIC/UAM)C/Nicolas Cabrera 1Campus de Cantoblanco28049 MadridSpain

In their recent article in Nature,Moiseeva et al.reported that senescent cells are integral components of the skeletal muscle regenerative niche,showing that they repress regeneration in response to different types of injuries in young mice and that this regeneration is even more profound in aged mice.Their observations point to selective links between the conservation of cell identity traits and two universal senescence hallmarks(i.e.,inflammation and matrix remodeling/fibrosis)across cell types,regeneration times,and aging statuses.

关键词： showing injuries regeneration

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

The Many Faces of Plant SWI/SNF Complex

引用

Molecular Plant 2014年第3期7卷 454-458页

作者： Jose C. Reyes Molecular Biology Department Centro Andaluz de Biologia Molecular y Medicina Regenerativa (CABIMER) Consejo Superior de Investigaciones Cientificas (CSIC) Av. Americo Vespucio 41092 Seville Spain

THE SWI/SNF COMPLEXESIn plants, as well as in metazoans, the execution of devel- opmental programs and the response to environmental stimuli depend on changes in gene transcription programs that require extensive chromatin modifications of basically two types： posttranslational modification of histones and ATP-dependent reorganization of histones-DNA interac- tions. Many different nuclear machineries are necessary to carry out chromatin modifications at the appropriate time and place.

关键词： CHROMATIN-REMODELING COMPLEXES ARABIDOPSIS-THALIANA BRAHMA ATPASE RESPONSES GENES ROLES MATURATION REPRESSION SUBUNITS

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

Variability and limits of nitrogen and phosphorus resorption during foliar senescence

引用

Plant Communications 2023年第2期4卷 41-55页

作者： Marc Estiarte Matteo Campioli Maria Mayol Josep Penuelas CSIC Global Ecology Unit CREAF-CSIC-UAB08193 BellaterraCataloniaSpain CREAF 08193 Cerdanyola del VallèsCataloniaSpain Research Group of Plant and Vegetation Ecology Department of BiologyUniversity of Antwerp2610 WilrijkBelgium

Foliar nutrient resorption(NuR)plays a key role in ecosystem functioning and plant nutrient economy.Most of this recycling occurs during the senescence of leaves and is actively addressed by cells.Here,we discuss the importance of cell biochemistry,physiology,and subcellular anatomy to condition the outcome of NuR at the cellular level and to explain the existence of limits to NuR.Nutrients are transferred from the leaf in simple metabolites that can be loaded into the phloem.Proteolysis is the main mechanism for mobilization of N,whereas P mobilization requires the involvement of different catabolic pathways,making the dynamics of P in leaves more variable than those of N before,during,and after foliar senescence.The biochemistry and fate of organelles during senescence impose constraints that limit NuR.The efficiency of NuR decreases,especially in evergreen species,as soil fertility increases,which is attributed to the relative costs of nutrient acquisition from soil decreasing with increasing soil nutrient availability,while the energetic costs of NuR from senescing leaves remain constant.NuR is genetically determined,with substantial interspecific variability,and is environmentally regulated in space and time,with nutrient availability being a key driver of intraspecific variability in NuR.

关键词： foliar nutrient resorption senescence nitrogen phosphorus efficiency nutrient availability

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

Nickel phosphonate MOF as efficient water splitting photocatalyst

引用

Nano Research 2021年第2期14卷 450-457页

作者： Pablo Salcedo-Abraira Sergio M.F.Vilela Artem A.Babaryk Maria Cabrero-Antonino Pedro Gregorio Fabrice Salles Sergio Navalon Hermenegildo Garcia Patricia Horcajada IMDEA Energy Advanced Porous Materials Unit(APMU)Avda.Ramon de Ia Sagra 3E 28935 MostolesMadridSpain Deparrtamento de Quimica Inorginica I.Fac.CC.Quimicas Universidad Complutense de MadridAvda.Complutense s/n28040 MadridSpain Departamento de Quimica and Instituto de Tecnologia Quimica(CSIC-UPV) Universitat Politecnica de ValenciaC/Camino de Veras/n46022 ValenciaSpain Institut Charles Gerhardt Montpellier UMR 5253 CNRS UM ENSCMUniversite MontpellierPlace E.Bataillon34095 Montpellier Cedex 05France

A novel microporous two-dimensional(2D)Ni-based phosphonate metal-organic framework(MOF;denoted as IEF-13)has been successfully synthesized by a simple and green hydrothermal method and fully characterized using a combination of experimental and computational techniques.Structure resolution by single-crystal X-ray diffraction reveals that IEF-13 crystallizes in the triclinic space group Pi having bi-octahedra nickel nodes and a photo/electroactive tritopic phosphonate ligand.Remarkably,this material exhibits coordinatively unsaturated nickel(II)sites,free-P0_(3)H_(2)and-P0_(3)H acidic groups,a C0_(2)accessible microporosity,and an exceptional thermal and chemical stability.Further,its in-deep optoelectronic characterization evidences a photoresponse suitable for photocatalysis.In this sense,the photocatalytic activity for challenging H_(2)generation and overall water splitting in absence of any co-catalyst using UV-Vis irradiation and simulated sunlight has been evaluated,constituting the first report for a phosphonate-MOF photocatalyst.IEF-13 is able to produce up to 2,200 fimol of H_(2)per gram using methanol as sacrificial agent,exhibiting stability,maintaining its crystal structure and allowing its recycling.Even more,170μmol of H_(2)per gram were produced using IEF-13 as photocatalyst in the absence of any co-catalyst for the overall water splitting,being this reaction limited by the 0_(2)reduction.The present work opens new avenues for further optimization of the photocatalytic activity in this type of multifunctional materials.

关键词： metal-organic framework phosphonates photocatalysis water splitting

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

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

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

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：