Cell Press最新文献_第3页

Gene Regulatory Networks Shape Developmental Plasticity of Root Cell Types Under Water Extremes 极端水分条件下，基因调控网络影响根细胞类型的发育可塑性

Cell Press Pub Date : 1900-01-01 DOI: 10.2139/ssrn.3908788

M. Reynoso, Alexander T. Borowsky, Germain C. Pauluzzi, E. Yeung, Jianhai Zhang, Elide Formentin, J. Velasco, Sean Cabanlit, Christine Duvenjian, Matthew J. Prior, Garo Z. Akmakjian, R. Deal, N. Sinha, S. Brady, T. Girke, J. Bailey-Serres

{"title":"Gene Regulatory Networks Shape Developmental Plasticity of Root Cell Types Under Water Extremes","authors":"M. Reynoso, Alexander T. Borowsky, Germain C. Pauluzzi, E. Yeung, Jianhai Zhang, Elide Formentin, J. Velasco, Sean Cabanlit, Christine Duvenjian, Matthew J. Prior, Garo Z. Akmakjian, R. Deal, N. Sinha, S. Brady, T. Girke, J. Bailey-Serres","doi":"10.2139/ssrn.3908788","DOIUrl":"https://doi.org/10.2139/ssrn.3908788","url":null,"abstract":"Understanding how roots modulate development under varied irrigation or rainfall is crucial for development of climate resilient crops. We established a toolbox of tagged rice lines to profile translating mRNAs and chromatin accessibility within specific cell populations. We used these to study roots in a range of environments: plates in the lab, controlled greenhouse stress and recovery conditions, and outdoors in a paddy. Integration of chromatin and mRNA data resolves regulatory networks of: cycle genes in proliferating cells that attenuate DNA synthesis under submergence; genes involved in auxin signaling, the circadian clock, and small RNA regulation in ground tissue; and suberin biosynthesis, iron transporters, and nitrogen assimilation in endodermal/exodermal cells modulated with water availability. By applying a systems approach we identify known and candidate driver transcription factors of water deficit responses and xylem development plasticity. Collectively, this resource will facilitate genetic improvements in root systems for optimal climate resilience.","PeriodicalId":244417,"journal":{"name":"Cell Press","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114250049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Active Use of Ambient Flow by a Deep-Sea Glass Sponge 深海玻璃海绵对环境流的积极利用

Cell Press Pub Date : 1900-01-01 DOI: 10.2139/ssrn.3949870

E. Matveev, Amanda S. Kahn, D. Eerkes-Medrano, Danielle A. Ludeman, Pablo Aragonés Suárez, G. Yahel, S. Leys

{"title":"Active Use of Ambient Flow by a Deep-Sea Glass Sponge","authors":"E. Matveev, Amanda S. Kahn, D. Eerkes-Medrano, Danielle A. Ludeman, Pablo Aragonés Suárez, G. Yahel, S. Leys","doi":"10.2139/ssrn.3949870","DOIUrl":"https://doi.org/10.2139/ssrn.3949870","url":null,"abstract":"How flow moves through porous structures like sponges has long intrigued physical and biological scientists. Despite sponges having specialized cells that function as biological pumps, their porous bodies are proposed to passively take advantage of ambient currents via ‘inducedflow’. This hypothesis relies on the fact that flow external to perforated or tube-like structures drives flow through the structure, but much of the support for this comes from work on dead specimens. A modern understanding of sponge morphology and physiology however, shows that sponges possess a sophisticated sensory system, even in their canals. We used custom flow and oxygen sensors at a 175m deep sponge reef to test the hypothesis of current-induced passive flow through living glass sponges. Evidence to support a passive flow hypothesis was only found in one of six individuals that filtered more water during periods of higher ambient current. As expected, all individuals stopped pumping independently of ambient currents, illustrating their control over pumping using the well-described electrical conduction system. However, at higher ambient currents, sponges removed 30% less oxygen, suggesting a mechanism by which the sponge senses the ambient flow rates and reduces the metabolic expenditure of filtration. The underlying mechanism by which this happens remains unknown, but it may involve a feedback loop through the canals, potentially via primary cilia that have been shown to sense flow in other sponges. Our experiments reveal that while sponges can take advantage of ambient flow, water movement through these animals is controlled by their complex physiology.","PeriodicalId":244417,"journal":{"name":"Cell Press","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122559169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improved Electrical Ideality and Photoresponse in Near Infrared Phototransistors Realized by Incorporating a Bulk Heterojunction Channel 采用体异质结通道改善近红外光电晶体管的电理想性和光响应

Cell Press Pub Date : 1900-01-01 DOI: 10.2139/ssrn.3951491

Ning Li, Yanlian Lei, Yanqin Miao, F. Zhu

{"title":"Improved Electrical Ideality and Photoresponse in Near Infrared Phototransistors Realized by Incorporating a Bulk Heterojunction Channel","authors":"Ning Li, Yanlian Lei, Yanqin Miao, F. Zhu","doi":"10.2139/ssrn.3951491","DOIUrl":"https://doi.org/10.2139/ssrn.3951491","url":null,"abstract":"Simultaneous increase in electrical ideality and near infrared (NIR) response in the organic phototransistors (OPTs) is realized by applying a donor/acceptor bulk heterojunction (BHJ) channel layer. A comprehensive analysis has been carried out to understand the effects of the miscibility between the donor and acceptor in the BHJ channel, and the morphology of the channel layer on the electrical charge transport and optical response of the OPTs. The presence of the acceptors in the channel layer helps to trap the undesirable injected electrons, avoiding the accumulation of the electrons at the active channel/dielectric interface, and thereby improving the hole transporting in the p-type channel. The electrical stability is then improved with mitigated dependence of charge mobility on gate voltage in the saturation region. The use of a BHJ channel in the OPTs also offers an improved photoresponse through enhanced exciton dissociation at the donor/acceptor interface and the stable mobility in the saturation region, leading to more than one order of magnitude increase in responsivity than that in a conventional OPT with a single p-type semiconductor channel layer. The OPTs with a BHJ channel layer exhibit an excellent hole mobility of 1.0 cm2V-1s-1, a high photoresponsivity of the 104 A/W and a high specific detectivity of 1.2×1012 Jones in the NIR wavelength.","PeriodicalId":244417,"journal":{"name":"Cell Press","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115519136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Unraveling the Key Role of (n,Π*) Transition of Amide in the Clusteroluminescence From Polypeptides 揭示(n，Π*)酰胺跃迁在多肽簇发光中的关键作用

Cell Press Pub Date : 1900-01-01 DOI: 10.2139/ssrn.3950752

Zhiming Zhang, Wei Yan, Dongfeng Dang, Haoke Zhang, J. Sun, B. Tang

引用次数: 1

Reactive Synthetic Pozzolans in Mortars from Ancient Water Infrastructure Serving Rome and Pompeii 古罗马和庞贝古代水利设施砂浆中的活性合成火山灰

Cell Press Pub Date : 1900-01-01 DOI: 10.2139/ssrn.3885241

Linda M Seymour, D. Keenan‐Jones, G. Zanzi, A. Masic

引用次数: 0

Extracting Lithium from Low Concentration Solutions for Direct Battery Cathode Production 从低浓度溶液中提取锂用于直接生产电池正极

Cell Press Pub Date : 1900-01-01 DOI: 10.2139/ssrn.3917206

Jiangtao Hu, Yuan Jiang, Linze Li, Zhaoxin Yu, Chongmin Wang, G. Gill, Jie Xiao, Robert J. Cavagnaro, L. Kuo, R. Asmussen, Dongping Lu

{"title":"Extracting Lithium from Low Concentration Solutions for Direct Battery Cathode Production","authors":"Jiangtao Hu, Yuan Jiang, Linze Li, Zhaoxin Yu, Chongmin Wang, G. Gill, Jie Xiao, Robert J. Cavagnaro, L. Kuo, R. Asmussen, Dongping Lu","doi":"10.2139/ssrn.3917206","DOIUrl":"https://doi.org/10.2139/ssrn.3917206","url":null,"abstract":"Lithium (Li) is one of the critical industrial materials and an indispensable component in manufacturing Li-ion/Li batteries. However, Li resource is very limited and geographically uneven in earth’s crust and its mining is not sustainable due to the low efficiency and complicated separation and refining processes. Hence, direct Li recovery (from brines, seawater or used cells) and utilization are desired. Here, we report a novel technology to recover Li from low concentration solutions into a form of Li resource, which can be directly used for commercial battery materials production by fully eliminating the costly Li separation steps. By using both Li-ion selective membrane and low-cost Li host structural material, highly selective Li extraction was realized. Li-ion cathodes (e.g., spinel LiMn2O 4 and layered LiNix MnyCozO2) were synthesized with the extracted Li and have high phase purities and economic superiorities (e.g., $12.8 kg-1 for LiMn2O4) over other Li extraction methods and even commercial cathodes ($15 kg-1 for LiMn2O4). This contribution provides a potential technical pathway to overcome the challenges of both Li supply and battery cost for future electrification and decarbonization of socioeconomic system.","PeriodicalId":244417,"journal":{"name":"Cell Press","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123245909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamically Modulating Gating Process of Nanoporous Membrane at Sub-2 Nm Scale 亚2nm尺度下纳米多孔膜的动态调制门控过程

Cell Press Pub Date : 1900-01-01 DOI: 10.2139/ssrn.3915014

Yahong Zhou, Junran Hao, Jiajia Zhou, J. Liao, Yan Wei, Xia‐Chao Chen, C. Ning, Xuliang Deng, Lei Jiang

{"title":"Dynamically Modulating Gating Process of Nanoporous Membrane at Sub-2 Nm Scale","authors":"Yahong Zhou, Junran Hao, Jiajia Zhou, J. Liao, Yan Wei, Xia‐Chao Chen, C. Ning, Xuliang Deng, Lei Jiang","doi":"10.2139/ssrn.3915014","DOIUrl":"https://doi.org/10.2139/ssrn.3915014","url":null,"abstract":"Gating properties of nanochannels, as a key nanofluidic behavior, holds huge applications in sensing, mass transportation and separation. It has been widely studied the terminal “open” and “close” states in response to changes of environments, for prepared nanochannels. Yet to date, it remains great challenge to control the dynamic gating process. Here in this manuscript, we modulate the dynamically electric gating process in polypyrrole (PPy)-based nanoporous membranes system at sub-2 nm speed. The nano-confinement environment renders the polymer chain with excellent electrochemical property and the polymer film swells or contracts in a controlled speed accompanied by a reversible counter-ion uptake or expulsion. With this switching process, the thickness of the polymer changes by 83%, resulting a fully closed gating state. Besides, we directly observe the successive polymer chain variation at nanoscale (ca. 10 nm) by the AFM topography in situ . This small operation voltages and ultra-high strain scope, along with biocompatible materials, make this design promising for smart nanorobot and wearable applications.","PeriodicalId":244417,"journal":{"name":"Cell Press","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117002022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0