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JA-mediated MYC2/LOX/AOS feedback loop regulates osmotic stress response in tea plant

Horticultural Plant Journal 2024年第3期10卷 931-946页

作者： Junyan Zhu Hongrong Chen Lu Liu Xiaobo Xia xiaomei yan Xiaozeng Mi Shengrui Liu Chaoling Wei State Key Laboratory of Tea Plant Biology and Utilization/Key Laboratory of Tea Biology and Tea Processing of Ministry of Agriculture/Anhui Provincial Laboratory of Tea Plant Biology and Utilization Anhui Agricultural UniversityHefeiAnhui 230036China

Osmotic stress caused by low-temperature,drought and salinity was a prevalent abiotic stress in plant that severely inhibited plant development and agricultural yield,particularly in tea *** acid(JA)is an important phytohormone involving in plant ***,underlying molecular mechanisms of JA modulated osmotic stress response remains *** this study,high concentration of mannitol induced JA accumulation and increase of peroxidase activity in tea *** transcriptome mined a JA signaling master,MYC2 transcription factor is shown as a hub regulator that induced by mannitol,expression of which positively correlated with JA biosynthetic genes(LOX and AOS)and peroxidase genes(PER).CsMYC2 was determined as a nuclei-localized transcription activator,furthermore,ProteinDNA interaction analysis indicated that CsMYC2 was positive regulator that activated the transcription of CsLOX7,CsAOS2,CsPER1 and CsPER3via bound with their promoters,*** of CsMYC2 expression resulted in a reduced JA content and peroxidase activity and osmotic stress tolerance of tea *** of CsMYC2 in Arabidopsis improved JA content,peroxidase activity and plants tolerance against mannitol ***,we proposed a positive feedback loop mediated by CsMYC2,CsLOX7 and CsAOS2 which constituted to increase the tolerance of osmotic stress through fine-tuning the accumulation of JA levels and increase of POD activity in tea plant.

关键词： Camellia sinensis Jasmonic acid(JA) MYC2 transcription factor Lipoxygenase(LOX) Osmotic stress Peroxidase(POD) Reactive oxygen species(ROS)

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Corrigendum to‘Characterization of lipid-based nanomedicines at the single-particle level’[Fundamental Research 3(2023)488-504]

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Fundamental Research 2024年第2期4卷 412-412页

作者： Chaoxiang Chen Chen Chen Yurou Li Ruilan Gu xiaomei yan Department of Chemical Biology MOE Key Laboratory of Spectrochemical Analysis&InstrumentationKey Laboratory for Chemical Biology of Fujian ProvinceCollaborative Innovation Center of Chemistry for Energy MaterialsCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China Department of Biological Engineering College of Ocean Food and Biological EngineeringJimei UniversityXiamen 361021China

The authors regret that the original version of this article unfortunately contained a mistake[1].It is stated that:“Based on TIRF,another strategy for resolution increase…However,this technique requires the chemical modification to immobilize an individual particle,which may in turn alter their physical and biochemical properties.”on page *** is incorrect and should be replaced by:“Another strategy for resolution increase…This technique doesn’t require the chemical modification to immobilize an individual particle,which avoids altering their physical and biochemical properties.”

关键词： properties. stated medicines

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激活科普潜力:欧洲科技馆促进科学家参与科普的策略及对中国的启示

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科普研究 2024年第1期19卷 66-76,106,107页

作者：严晓梅翟俊卿上海交通大学教育学院上海200240 浙江大学教育学院杭州310058

在大力推动科学家参与科普的背景下,如何协助科学家提升科普效率与效果成为各国面临的挑战。本文梳理了欧洲科技馆协助科学家开展科普活动的经验。在访谈欧洲5家科技馆展教部门的负责人,并对这些场馆的展览材料进行分析的基础上,本文深... 详细信息

在大力推动科学家参与科普的背景下,如何协助科学家提升科普效率与效果成为各国面临的挑战。本文梳理了欧洲科技馆协助科学家开展科普活动的经验。在访谈欧洲5家科技馆展教部门的负责人,并对这些场馆的展览材料进行分析的基础上,本文深入剖析了这5家科技馆如何通过互动式展览并利用教育资源,支持科学家有效参与科普活动。结果显示,欧洲科技馆通过多样化的展览方式和专业培训,有效提升了科学家在科普活动中的参与度和效果。这为我国科技馆建立科学家与公众互动交流的多样化平台提供了借鉴:强调为科学家提供提升科普能力的培训,与科学家开展共创合作促进科学精神的传播。此外,建议开展更多基础研究,利用科技馆的技术优势,创新科普活动的形式,促进科学文化的传承与发展。

关键词：科学中心科技馆科学家参与科学普及公民科学素质

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An altimetric transport index for Kuroshio inflow northeast of Taiwan Island

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Science China Earth Sciences 2015年第5期58卷 697-706页

作者： yan xiaomei SUN Che Institute of Oceanology Chinese Academy of Sciences

The Kuroshio inflow northeast of Taiwan Island plays an important role in the heat and nutrient balances over the East China Sea(ECS). Based on merged satellite altimeter data and the PCM-1 mooring observation at the East Taiwan Channel(ETC), the study employs a correlation iteration scheme to find the optimal transport index for the Kuroshio inflow. The sea level difference with the highest correlation to the ETC transport is across the ECS shelf break rather than along the PCM-1 line. The counter-intuitive result is caused by large signal noise and poor track coverage of altimeters near the Taiwan coast. The optimal altimetric index is highly correlated with the two-year in-situ measurements as well as the ten-year output of the global assimilation model. It serves as a better estimator of Kuroshio inflow than those using tidal gauge data, and helps pinpoint a 5 cm mismatch of mean sea level in the Keelung tidal record. The mean transport of Kuroshio inflow based on the twenty-year altimetric index is 20.55 Sv with a standard deviation of 3.05 Sv. Wavelet spectrum of the index reveals that semi-annual period dominates the Kuroshio variation northeast of Taiwan Island.

关键词： Kuroshio inflow East Taiwan Channel tidal record in-situ mooring altimeter

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Variability of Antarctic Intermediate Water south of Australia and its relationship with frontal waves

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Science China Earth Sciences 2016年第8期59卷 1674-1682页

作者： ZHANG LinLin yan xiaomei SUN Che HU DunXin Institute of Oceanology Chinese Academy of Sciences Key Laboratory of Ocean Circulation and Waves Chinese Academy of Sciences Laboratory for Ocean and Climate Dynamics Qingdao National Laboratory for Marine Science and Technology

A streamfunction EOF method is applied to a time series of hydrographic sections in the Southern Ocean south of Australia to study water mass variations. Results show that there are large thermohaline variations north of the Subantarctic Front (SAF) at 300–1500 dbar level, indicating upwelling and downwelling of the Antarctic Intermediate Water (AAIW) along isopycnal surfaces. Based on the latest altimeter product, Absolute Dynamic Topography, a mechanism due to frontal wave propagation is proposed to explain this phenomenon, and an index for frontal waves is defined. When the frontal wave is in positive (negative) phase, the SAF flows northeastward (southeastward) with the fresh AAIW downwelling (upwelling). Such mesoscale processes greatly enhance cross-frontal exchanges of water masses. Spectral analysis shows that frontal waves in the Southern Ocean south of Australia are dominated by a period of about 130 days with a phase speed of 4 cm/s and a wavelength of 450 km.

关键词： Antarctic Intermediate Water(AAIW) Stream-coordinates Frontalwave EOF

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High-resolution crustal velocity structure in the Shanxi rift zone and its tectonic implications

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Science China Earth Sciences 2021年第5期64卷 728-743页

作者： Liting DOU Huajian YAO Lihua FANG Song LUO Meiqin SONG xiaomei yan Cheng CHENG Shanxi Earthquake Administration Taiyuan 030021China Laboratory of Seismology and Physics of the Earth’s Interior School of Earth and Space SciencesUniversity of Science and Technology of ChinaHefei 230026China Mengcheng National Geophysical Observatory University of Science and Technology of ChinaMengcheng 233500China CAS Center for Excellence in Comparative Planetology University of Science and Technology of ChinaHefei 230026China Institute of Geophysics China Earthquake AdministrationBeijing 100081China

The Shanxi rift zone,located in the Trans-North China Orogen(TNCO)of the North China Craton(NCC),is wellknown for hosting large intraplate earthquakes in continental *** TNCO is a suture zone formed by the amalgamation of the eastern and the western blocks of the *** its formation,it was reactived and deformed by later tectonic activities,which result in complex lithospheric ***,the detailed crustal structure of the Shanxi rift zone is critical for understanding the tectonics and seismogenic mechanism in this area,which will shed new lights on the formation and dynamic evolution of the *** this study,we applied ambient noise tomography based on 18 months continuous records from 108 seismic stations located in Shanxi and its surroundings,in order to constrain its detailed crustal *** measured 4437 Rayleigh wave phase velocity dispersion curves in the period of 5–45 s from the cross-correlation ***,a surface wave direct inversion algorithm based on surface-wave ray tracing was used to resolve a 3-D S-wave velocity model in the upper 60 km with lateral resolution of~50–80 *** tomographic images show that the sedimentary thickness of the Taiyuan Basin is less than 5 *** depth of 0–10 km,we observe a good correlation between the imaged structural variations with geological and topographic features at the *** example,the center of rift shows low-velocity anomalies and the uplifting areas on both sides are characterized by high velocity *** western and eastern boundaries of the slow materials coincide with the faults that control the *** slow material extends from the shallow surface to depth of about 15 km but it getting smaller in shape at deeper *** the Taiyuan Basin,Linfen Basin,and Yuncheng Basin in the central and southern parts,the structure is dominant by slow materials in the upper crust but changes to strong high-velocity anomalies in the lower crust and the uppermost mantle at

关键词： Shanxi rift zone Ambient noise tomography S-wave velocity structure Magmatic underplating Earthquake distribution

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The near-inertial waves observed east of the Philippines

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Journal of Oceanology and Limnology 2022年第5期40卷 1889-1908页

作者： Shengming YUAN xiaomei yan Linlin ZHANG Bing yanG Chongguang PANG Dunxin HU Key Laboratory of Ocean Circulation and Waves Institute of OceanologyChinese Academy of SciencesQingdao 266071China Pilot National Laboratory for Marine Science and Technology(Qingdao) Qingdao 266237China Center for Ocean Mega-Science Chinese Academy of SciencesQingdao 266071China College of Earth Science University of Chinese Academy of SciencesBeijing 100049China

Based on mooring observations from Aug.1,2016 to Dec.14,2017,the characteristics and underlying mechanisms of near-inertial waves(NIWs)observed east of the Philippines were *** strong NIW events were investigated in *** NIWs in EventⅠwere induced by typhoon Lan and had the strongest magnitudes of 0.35 m/*** maximum near-inertial kinetic energy(NIKE)was shown at the ocean *** NIW in EventⅡwas stimulated by a moderate cyclonic wind with the extreme NIKE located at about 110-m *** existence of a cyclonic eddy during EventsⅠandⅡled to a blue shift of near-inertial *** EventⅢ,the surface near-inertial signals were also induced by local weak wind,whereas the real generation mechanisms for the subsurface NIWs remain *** particular,during EventⅢ,there was a nonlinear wave-wave interaction between NIWs and semidiurnal(D)tides,which further induced strong D±f ***,the NIWs in the three events exhibited distinct vertical *** NIWs in EventsⅠandⅡwere dominated by lower mode s with elevated NIKE well confined to the upper 250 m and 270 m,*** contrast,the NIW EventⅢwas dominated by higher modes and the NIWs penetrated downward beyond 360 *** deep penetration of NIWs could be attributed to the weak wind stress curl and positive sea level anomalies associated with an anticyclonic *** addition,the three NIW events had e-folding timescales of less than 7 days.

关键词： near-inertial wave(NIW) generation mechanism dynamic characteristic

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基于震后舆情的灾情信息提取研究

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山西地震 2024年第1期 1-4,16页

作者：闫晓美牛艳杰王宁许振鹏山西省地震局山西太原030021 太原大陆裂谷动力学国家野外科学观测研究站山西太原030025

大地震发生后,通常会出现大量关于地震灾害的信息并在网络中快速传播,为快速准确地获取地震灾情信息,开展基于震后舆情提取灾情信息的相关研究。首先构建灾情信息挖掘模型,建立灾情关键词表,通过计算词向量相似度,快速提取地震灾情等相... 详细信息

大地震发生后,通常会出现大量关于地震灾害的信息并在网络中快速传播,为快速准确地获取地震灾情信息,开展基于震后舆情提取灾情信息的相关研究。首先构建灾情信息挖掘模型,建立灾情关键词表,通过计算词向量相似度,快速提取地震灾情等相关信息。同时以“山东德州原平5.5级地震”为案例,验证构建模型在地震灾情提取方面的效果及其可行性和实用性。结果表明,该研究可为震后快速应对和处置灾情提供一定的参考数据和决策依据。

关键词：地震灾情震后舆情网络爬虫文本挖掘信息提取

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Origin and formation of the Ryukyu Current revealed by HYCOM reanalysis

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Acta Oceanologica Sinica 2019年第11期38卷 1-10页

作者： Min Wang Zhaojun Liu Xiaohua Zhu xiaomei yan Zhongzhe Zhang Ruixiang Zhao School of Oceanography Shanghai Jiao Tong UniversityShanghai 200030China State Key Laboratory of Satellite Ocean Environment Dynamics Second Institute of OceanographyMinistry of Natural ResourcesHangzhou 310012China Key Laboratory of Ocean Circulation and Waves Institute of OceanologyChinese Academy of SciencesQingdao 266071China College of Marine Science and Environment Dalian Ocean UniversityDalian 116023China

The origin of the Ryukyu Current(RC)and the formation of its subsurface velocity core were investigated using a 23-year(1993–2015)global Hybrid Coordinate Ocean Model(HYCOM)*** volume transport of the RC comes from the Kuroshio eastward branch(KEB)east of Taiwan and part of the North Pacific Subtropical Gyre(p-NPSG).From the surface to 2000m depth,the KEB(p-NPSG)transport contributes 41.5%(58.5%)to the mean total RC *** KEB originally forms the subsurface velocity core of the RC east of Taiwan due to blockage of the subsurface Kuroshio by the Ilan Ridge(sill depth:700 m).Above 700m,the Kuroshio can enter the East China Sea(ECS)over the Ilan Ridge,meanwhile,the blocked Kuroshio below 700m turns to the right and flows along the Ryukyu *** the RC flowing northeastward,the p-NPSG contribution strengthens the subsurface maximum structure of the RC owing to the blockage of the Ryukyu *** the surface layer,the p-NPSG cannot form a stable northeastward current due to frequent disturbance by mesoscale eddies and water exchange through the gaps(with net volume transport into ECS)between the Ryukyu Islands.

关键词： origins of Ryukyu Current subsurface velocity core volume transport Kuroshio HYCOM

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纳米流式检测技术在细胞外囊泡临床诊疗研究中的应用

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中华检验医学杂志 2024年第8期47卷 975-980页

作者：胡芸芸张清源底浩楠詹小贞蔡年桂颜晓梅厦门大学化学化工学院谱学分析与仪器教育部重点实验室、福建省化学生物学重点实验室厦门361005

细胞外囊泡(EV)是细胞分泌的极具异质性的纳米小囊泡,携带着来源于母细胞的各种生物活性分子,广泛分布于各种体液中,近年来在液体活检和疾病治疗中显示出巨大的应用前景。然而,传统流式细胞仪难以检测粒径小于300 nm的EV。基于瑞利散射... 详细信息

细胞外囊泡(EV)是细胞分泌的极具异质性的纳米小囊泡,携带着来源于母细胞的各种生物活性分子,广泛分布于各种体液中,近年来在液体活检和疾病治疗中显示出巨大的应用前景。然而,传统流式细胞仪难以检测粒径小于300 nm的EV。基于瑞利散射和鞘流单分子荧光检测技术研发成功的纳米流式检测技术(nFCM)将EV的检测下限推进至40 nm,通过单粒子水平的多参数同时检测,可实现粒径、颗粒浓度和多种生化性状的同时分析,并可应用于EV临床诊疗研究中。

关键词：细胞外囊泡纳米流式检测技术临床诊断疾病治疗

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