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| 1 | Involvement of Histone Modifcations in Plant Abiotic Stress Responses显示文摘As sessile organisms,plants encounter various environmental stimuli including abiotic stresses during their lifecycle.To survive under adverse conditions,plants have evolved intricate mechanisms to perceive external signals and respond accordingly.Responses to various stresses largely depend on the plant capacity to modulate the transcriptome rapidly and specifcally.A number of studies have shown that the molecular mechanisms driving the responses of plants to environmental stresses often depend on nucleosome histone post‐translational modifcations including histone acetylation,methylation,ubiquitination,and phosphorylation.The combined effects of these modifcations play an essential role in the regulation of stress responsive gene expression.In this review,we highlight our current understanding of the epigenetic mechanisms of histone modifcations and their roles in plant abiotic stress response. | Lianyu Yuan Xuncheng Liu Ming Luo Songguang Yang Keqiang Wu | 2013 | Journal of Integrative Plant Biology2013,55,10: | 21 |
| 2 | Arabidopsis NF-YCs Mediate the Light-Controlled Hypocotyl Elongation via Modulating Histone Acetylation显示文摘光是支持 photomorphogenesis 的一个关键环境信号,有为植物到的一系列轻依赖者的改变的发展过程改编各种各样的外部挑战。染色质修正被建议了涉及如此的调停光的生长,但是内在的机制仍然是逃犯的。在这研究,我们识别了四 Arabidopsis thaliana 原子 Factor-YC 相当或相同的事物, NF-YC1, NF-YC3, NF-YC4,和 NF-YC9 (NF-YCs ) ,它经由 histone deacetylation 作为控制光的胚轴延伸的抑压者冗余地工作。明显的青白化显型在在轻条件下面种的 NF-YCs loss-of-function 异种幼苗被观察,包括重要伸长的胚轴和更少打开的子叶。我们发现 NF-YCs 在光与 histone deacetylase HDA15 交往,合作目标一套胚轴的倡导者延伸相关的基因,并且在联系染色质上调制 histone H4 acetylation 的层次,因此镇压基因表示。相反, NF-YC-HDA15 建筑群在黑暗中从目标基因被解除,导致 H4 acetylation 和作为结果的变白的生长的增加的水平。进一步的分析表明控制光的胚轴延伸上的 NF-YCs 的那项 transcriptional 压抑活动部分取决于 NF-YCs overexpression 的短胚轴的显型种的功能能救的 HDA15 的 HDA15,和损失的 deacetylation 活动。一起拿,我们的结果显示 NF-YC1, NF-YC3, NF-YC4,和 NF-YC9 由与 HDA15 交往在早幼苗舞台期间在 photomorphogenesis 禁止胚轴延伸作为 transcriptional 合作抑压者工作。我们 NF-YCs 能调制的调查结果热点响应经由 epigenetic 的环境暗示的植物开发规定。 | Yang Tang Xuncheng Liu Xu Liu Yuge Li Keqiang Wu Xingliang Hou | 2017 | Molecular Plant2017,10,2: | 12 |
| 3 | Genomic Features and Regulatory Roles of Intermediate-Sized Non-Coding RNAs in Arabidopsis显示文摘在染色体宽的技术的最近的进展与各种各样的尺寸 ineukaryotes 允许几千非编码的 RNA 的鉴定,其中一些进一步被显示了在许多生物进程服务重要函数。然而在 modelplant Arabidopsis,新奇中介大小的 ncRNAs (im-ncRNAs )(50 ~ 300 nt ) 很限制了信息。由与深定序的技术使用修改隔离 strategycombined,我们全球性在 Arabidopsis 识别了 838 im-ncRNAs。多于一半(58%) 是新 ncRNA 种类,主要进化分叉。有趣地,与 5-UTR-derived 小说 im-ncRNAs 注解了 protein-codinggenes 趋于高度被表示。为 intergenic im-ncRNAs,他们比得上在幼苗的 mRNAs 的平均 abundanceswere,而是子集,在开始衰老的展出显著地更低的表示离开。进一步, intergenic im-ncRNAs 被调整由类似基因并且编码蛋白质的基因的到那些的 epigenetic 机制,和 someshowed 发展地调整了表示模式。基因屏蔽显示出的大规模颠倒 down-regulationof 很多 im-ncRNAs 在 vivo 导致了明显的分子的变化或反常发展显型,在植物生长和开发显示 im-ncRNAs 的功能的重要性。一起,我们的结果证明 thatnovel Arabidopsis im-ncRNAs 发展地被调整,功能的部件在 transcriptome.Key 词发现了: | Yuqiu Wang Xuncheng Wang Wei Deng Xiuduo Fan Ting-Ting Liu Guangming He Runsheng Chen William Terzaghi Danmeng Zhu Xing Wang Deng | 2014 | Molecular Plant2014,7,3: | 9 |
| 4 | A preliminary study of chronology for a newly-discovered ancient city and five archaeological sites in Lop Nor, China显示文摘In the past century, it has long been debated in the archeological, historical, geographical, and many other related communities where the capital of the Luolan and Shanshan states was in the Lop Nor region. This paper presents three AMS radiocarbon ages from a newly-discovered ancient city at about 6.3 km to the northwest of the Xiaohe Graveyard, and fifteen new radiocarbon ages from the Loulan (LA), LE, Qieerqiduke, Milan, and Tuyin sites in Lop Nor. The new investigation shows that the age of newly-discovered ancient city is at ca. 440–500 AD, belonging to the Northern Wei Dynasty (386–534 AD). This is about 100–300 years younger than Loulan (ca. 100–230 AD), LE (ca. 230–300 AD), Qieerqiduke (ca. 200 AD), and Tuyin (ca. 100 AD). A wooden beam from Milan fortress is dated to ca. 370 AD, while the age on north wall at west gate of the fortress is younger, around 770 AD, suggesting that its construction time might be at the Tang Dynasty. According to 14C ages, cultural relic style, and the geographical location, the newly-discovered ancient city is probably attributed to 'Zhubin City', as documented in the historical literature. Temporally, we name the city 'ancient Zhubin River City'. However, the characteristics and functions of this ancient city are largely unknown and need more detailed archaeological excavation and investigation in the future. Given its location near the ancient postal relay of Alagan on the crossroad, there is no doubt that the newly-discovered city was at an important geographical position on the Silk Road, no matter whether it was called 'Zhubin City', or 'Lielo City', or the capital of Loulan state–'Yuni City'. Our findings provide new evidence for the temporal and spatial distribution of ancient relic sites and the development of civilization in western China, thus contributing to our understanding of the relationship between human activities and environmental change in the Lop Nor region. | LU HouYuan XIA XunCheng LIU JiaQi QIN XiaoGuang WANG FuBao YIDILISI Abuduresule ZHOU Li Ping MU GuiJin JIAO YingXin LI JingZhi | 2010 | Chinese Science Bulletin2010,55,1: | 8 |
| 5 | Natural variation in the transcription factor REPLUMLESS contributes to both disease resistance and plant growth in Arabidopsis显示文摘When attacked by pathogens,plants need to reallocate energy from growth to defense to fend off the invaders,frequently incurring growth penalties.This phenomenon is known as the growth–defense tradeoff and is orchestrated by a hardwired transcriptional network.Altering key factors involved in this network has the potential to increase disease resistance without growth or yield loss,but the mechanisms underlying such changes require further investigation.By conducting a genome-wide association study(GWAS)of leaves infected by the hemi-biotrophic bacterial pathogen Pseudomonas syringae pv.tomato(Pst)DC3000,we discovered that the Arabidopsis transcription factor REPLUMLESS(RPL)is necessary for bacterial resistance.More importantly,RPL functions in promoting both disease resistance and growth.Transcriptome analysis revealed a cluster of genes in the GRETCHEN HAGEN 3(GH3)family that were significantly upregulated in rpl mutants,leading to the accumulation of indole-3-acetic acid-aspartic acid(IAA-Asp).Consistent with this observation,transcripts of virulence effector genes were activated by IAA-Asp accumulated in the rpl mutants.We found that RPL protein could directly bind to GH3 promoters and repress their expression.RPL also repressed flavonol synthesis by directly repressing CHI expression and thus activated the auxin transport pathway,which promotes plant growth.Therefore,RPL plays an important role in plant immunity and functions in the auxin pathway to optimize Arabidopsis growth and defense. | Miqi Xu Xuncheng Wang Jing Liu Aolin Jia Chao Xu Xing Wang Deng Guangming He | 2022 | Plant Communications2022,3,5: | 0 |
| 6 | Stitching Perovskite Grains with Perhydropoly(Silazane)Anti-Template-Agent for High-Efficiency and Stable Solar Cells Fabricated in Ambient Air显示文摘All inorganic CsPbI_(3)perovskite solar cells(PSCs)have emerged as disruptive photovoltaic technology owing to their admirable photoelectric properties and the non-volatile active layer.However,the phase instability against moisture severely limits the fabrication environment for the high-efficiency devices,breaking through the confinement region to achieve scalable manufacturing has been the primary issue for future commercialization.Here,we develop a curing-anti-solvent strategy for fabricating high-quality and stable black-phase CsPbI_(3)perovskite films in ambient air by introducing an inorganic polymer perhydropolysilazane(PHPS)into methyl acetate to form anti-template agent.The cross-linked PHPS reduces moisture erosions while the hydrolyzate silanol network(–Si(OH)_(4)^(–))controls the perovskite crystal growth by forming Lewis adducts with PbI_(2)during the fabrication.The polycondensation adduct of Si–O–Si/Si–O–Pb strongly binds to CsPbI_(3)grains as a shield layer to hamper phase transition.Using the inorganic CsPbI_(3)perovskite thin-film with PHPS-modified anti-solvent processing as the light absorber,the n–i–p planar solar cell achieved an efficiency of 19.17%under standard illumination test conditions.More importantly,the devices showed excellent moisture stability,retaining about 90%of the initial efficiency after 1000 h under 30%RH. | Ting Wang Qu Yang Yanli Chen Qiong Peng Xiaosi Qi Hui Shen Xuncheng Liu Shaohui Li Haixuan Yu Yan Shen Mingkui Wang Xiu Gong | 2023 | Energy & Environmental Materials2023,6,3: | 0 |
| 7 | REAL-t1, an Effective Approach for t1-Noise Suppression in NMR Spectroscopy Based on Resampling Algorithm显示文摘Summaryof main observation and conclusionIn multidimensional(nD)NMR spectroscopy,t1noise usually appears as ridges along indirect dimen-sions,and affects observation of weak signals.The main source of t1noise is instrumental instability,which causes random variation of FID amplitude during data acquisitions and introduces random noise-like peaks into spectrum after Fourier transformation.A number of efforts have been devoted,in order to develop new method or to improve existing approaches for suppressing t1noise.Herein,we propose a novel t1noise suppression method based on resampling algorithm for data processing,shortenedas REAL-t1.The method was verified using simulated 2D spectra,and NOESY spectra of sucrose and protein GB1,showing that the spectral quality was improved in all cases.The performance of REAL-t1was also compared with another recently pro-posed method,which showed that these two methods provided similar performance while REAL-t1cost much shorter experimental time. | Linhong Song Jiannan Wang Xuncheng Su Xu Zhang Conggang Li Xin Zhou Daiwen Yang Bin Jiang Maili Liu | 2020 | Chinese Journal of Chemistry2020,38,1: | 0 |