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RING-box proteins regulate leaf senescence and stomatal closure via repression of ABA transporter gene ABCG40

Journal of Integrative Plant Biology 2022年第5期64卷 979-994页

作者： Yun Qi Wei Jun Jie Yuan Chen Chen Xiao Gui Xin Li jing ying yan Shao Jian Zheng Zhong Jie Ding State Key Laboratory of Plant Physiology and Biochemistry College of Life SciencesZhejiang UniversityHangzhou 310058China Guangdong Laboratory for Lingnan Modern Agriculture College of Natural Resources and EnvironmentSouth China Agricultural UniversityGuangzhou 510642China College of Agronomy and Biotechnology Zhejiang UniversityHangzhou 310058China Agricultural Experimental Station Zhejiang UniversityHangzhou 310058China

Plant hormone abscisic acid(ABA)plays an indispensable role in the control of leaf senescence,during which ABA signaling depends on its ***,the role of ABA transport in leaf senescence remains ***,we identified two novel RING-box protein-encoding genes UBIQUITIN LIGASE of SENESCENCE 1 and2(ULS1 and ULS2)involved in leaf *** of ULS1 and ULS2 accelerates leaf senescence,which is specifically promoted by ABA ***,the expression of senescence-related genes is significantly affected in mature leaves of uls1/uls2 double mutant(versus wild type(WT))in an ABA-dependent manner,and the ABA content is substantially ***1 and ULS2 are mainly expressed in the guard cells and aging leaves,and the expression is induced by *** RNA-seq and quantitative proteomics of ubiquitination reveal that ABA transporter ABCG40 is highly expressed in uls1/uls2 mutant versus WT,though it is not the direct target of ULS1/***,we show that the acceleration of leaf senescence,the increase of leaf ABA content,and the promotion of stomatal closure in uls1/usl2 mutant are suppressed by abcg40 loss-of-function *** results indicate that ULS1 and ULS2 function in feedback inhibition of ABCG40-dependent ABA transport during ABA-induced leaf senescence and stomatal closure.

关键词： ABA Arabidopsis E3 ligase leaf senescence stomata transport

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A WRKY transcription factor confers aluminum tolerance via regulation of cell wall modifying genes

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Journal of Integrative Plant Biology 2020年第8期62卷 1176-1192页

作者： Chun Xiao Li jing ying yan Jiang Yuan Ren Li Sun Chen Xu Gui Xin Li Zhong Jie Ding Shao Jian Zheng State Key Laboratory of Plant Physiology and Biochemistry College of Life SciencesZhejiang UniversityHangzhou 310058China Agricultural Experiment Station Zhejiang UniversityHangzhou 310058China College of Agronomy and Biotechnology Zhejiang UniversityHangzhou 310058China

Modification of cell wall properties has been considered as one of the determinants that confer aluminum(Al)tolerance in plants,while how cell wall modifying processes are regulated remains ***,we present a WRKY transcription factor WRKY47 involved in Al tolerance and root *** of WRKY47 significantly reduces,while overexpression of it increases Al *** show that lack of WRKY47 substantially affects subcellular Al distribution in the root,with Al content decreased in apoplast and increased in symplast,which is attributed to the reduced cell wall Al-binding capacity conferred by the decreased content of hemicellulose I in the wrky47-1 *** on microarray,real time-quantitative polymerase chain reaction and chromatin immunoprecipitation assays,we further show that WRKY47 directly regulates the expression of EXTENSIN-LIKE PROTEIN(ELP)and XYLOGLUCAN ENDOTRANSGLUCOSYLASE-HYDROLASES17(XTH17)responsible for cell wall *** the expression of ELP and XTH17 rescued Al tolerance as well as root growth in wrky47-1 *** summary,our results demonstrate that WRKY47 is required for root growth under both normal and Al stress conditions via direct regulation of cell wall modification genes,and that the balance of Al distribution between root apoplast and symplast conferred by WRKY47 is important for Al tolerance.

关键词： distribution WRKY tolerance

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Ethylene promotes seed iron storage during Arabidopsis seed maturation via ERF95 transcription factor

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Journal of Integrative Plant Biology 2020年第8期62卷 1193-1212页

作者： ying Sun Jia Qi Li jing ying yan Jun Jie Yuan Gui Xin Li Yun Rong Wu Ji Ming Xu Rong Feng Huang Nicholas P.Harberd Zhong Jie Ding Shao Jian Zheng State Key Laboratory of Plant Physiology and Biochemistry College of Life SciencesZhejiang UniversityHangzhou 310058China Agricultural Experimental Station Zhejiang UniversityHangzhou 310058China College of Agronomy and Biotechnology Zhejiang UniversityHangzhou 310058China Biotechnology Research Institute Chinese Academy of Agricultural SciencesBeijing 100081China Department of Plant Science University of OxfordOxford OX13RBUnited Kingdom

Because Iron(Fe)is an essential element,Fe storage in plant seeds is necessary for seedling establishment following ***,the mechanisms controlling seed Fe storage during seed development remain largely *** we reveal that an ERF95 transcription factor regulates Arabidopsis seed Fe *** show that expression of ERF95 increases during seed maturation,and that lack of ERF95 reduces seed Fe accumulation,consequently increasing sensitivity to Fe deficiency during seedling ***,overexpression of ERF95 has the opposite *** show that lack of ERF95 decreases abundance of FER1 messenger RNA in developing seed,which encodes Fe-sequestering ***,a fer1-1 loss-of-function mutation confers reduced seed Fe accumulation,and suppresses ERF95-promoted seed Fe *** addition,ERF95 binds to specific FER1 promoter GCC-boxes and transactivates FER1 *** show that ERF95 expression in maturing seed is dependent on EIN3,the master transcriptional regulator of ethylene *** lack of EIN3 reduces seed Fe content,overexpression of ERF95 rescues Fe accumulation in the seed of ein3 loss-of-function ***,we show that ethylene production increases during seed *** conclude that ethylene promotes seed Fe accumulation during seed maturation via an EIN3-ERF95-FER1-dependent signaling pathway.

关键词： expression. ERF Arabidopsis

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Initial experience with circumferential pulmonary vein isolation guided~ by Overlay Ref and CartoMerge in the treatment of paroxysmal atrial fibrillation

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Chinese Medical Journal 2010年第10期123卷 1269-1272页

作者： TANG Kai ZHAO Dong-dong ZHANG jing-ying CHEN yan-qing XU Ya-wei Department of Cardiology Shanghai Tenth People's Hospital Tong Ji University Shanghai 200072 China

Background CartoMerge has been widely used in guiding circumferential pulmonary vein isolation （CPVI） for the treatment of paroxysmal atrial fibrillation （PAF）. However, the procedure of landmarks selection varies among operators according to their experience. Techniques have to be established to standardize this procedure. We propose that Overlay Ref could facilitate this procedure. This paper aimed to report our initial experience with CPVI guided by Overlay Ref and CartoMerge for the treatment of PAF. Methods Fifty-nine patients with PAF were enrolled in this study. Using Overlay Ref technique, a reference image （inverted） was faded into the live fluoroscopic image. Landmarks of CartoMerge were selected from anatomic points of the top of superior pulmonary veins （PVs） and the bottom of inferior PVs guided by Overlay Ref image. Overlay Ref images were also used to guide the ablation procedure combining with CartoMerge. Results All patients were successfully mapped by CartoMerge guided by Overlay Ref. The distance between the mapping points and the CT surfaces was （1.42±0.67） mm for the patients as a whole. This led to a successful rate of 96% for isolation of pulmonary veins. Duration of ablation procedure was （92±17） minutes. And the total duration of procedure was （139±32） minutes. CartoMerge could also be performed just with 3 paries to 4 paries selected landmarks guided by Overlay Ref without a full anatomic model constructed by Carto. Then, the total duration of procedure could be shortened to （115±38） minutes. Conclusions Overlay Ref technique can facilitate the catheter ablation of PAF and can help to standardize the procedure of landmarks selection.

关键词： circumferential pulmonary vein isolation Overlay Ref technique computed tomography three-dimensional electroanatomic mapping atrial fibrillation

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Restriction of iron loading into developing seeds by a YABBY transcription factor safeguards successful reproduction in Arabidopsis

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Molecular Plant 2021年第10期14卷 1624-1639页

作者： Li Sun Yun Qi Wei Kang Hao Wu jing ying yan Jie Na Xu Yun Rong Wu Gui Xin Li Ji Ming Xu Nicholas P.Harberd Zhong Jie Ding Shao Jian Zheng State Key Laboratory of Plant Physiology and Biochemistry College of Life SciencesZhejiang UniversityHangzhou 310058China Agricultural Experimental Station Zhejiang UniversityHangzhou 310058China College of Agronomy and Biotechnology Zhejiang UniversityHangzhou 310058China Department of Plant Science University of OxfordOxford OX13RBUK Guangdong Laboratory for Lingnan Modern Agriculture College of Natural Resources and EnvironmentSouth China Agricultural UniversityGuangzhou 510642

Iron(Fe)storage in plant seeds is not only necessary for seedling establishment following germination but is also a major source of dietary Fe for humans and other *** of Fe in seeds is known to be low during early seed ***,the underlying mechanism and biological significance remain ***,we show that reduced expression of Arabidopsis YABBY transcription factor INNER NO OUTER(INO)increases embryonic Fe accumulation,while transgenic overexpression of INO results in the opposite *** is highly expressed during early seed development,and decreased INO expression increases the expression of NATURAL RESISTANCE-ASSOCIATED MACROPHAGE PROTEIN 1(NRAMP1),which encodes a transporter that contributes to seed Fe *** relatively high embryonic Fe accumulation conferred by decreased INO expression is rescued by the nramp1 loss-of-function *** further demonstrated that INO represses NRAMP1 expression by binding to NRAMP1-specific promoter ***,we found that excessive Fe loading into developing seeds of ino mutants results in greater oxidative damage,leading to increased cell death and seed abortion,a phenotype that can be rescued by the nramp1 *** together,these results indicate that INO plays an important role in safeguarding reproduction by reducing Fe loading into developing seeds by repressing NRAMP1 expression.

关键词： iron seed embryo toxicity transcription factor Arabidopsis

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ART1 and putrescine contribute to rice aluminum resistance via OsMYB30 in cell wall modification

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Journal of Integrative Plant Biology 2023年第4期65卷 934-949页

作者： Li Jun Gao Xiang Pei Liu Ke Ke Gao Meng Qi Cui Hui Hui Zhu Gui Xin Li jing ying yan Yun Rong Wu Zhong Jie Ding Xue Wei Chen Jian Feng Ma Nicholas PHarberd Shao Jian Zheng State Key Laboratory of Plant Physiology and Biochemistry College of Life SciencesZhejiang UniversityHangzhou 310058China Guangdong Laboratory for Lingnan Modern Agriculture College of Natural Resources and EnvironmentSouth China Agricultural UniversityGuangzhou 5100642China Shenzhen Branch Guangdong Laboratory of Lingnan Modern AgricultureGenome Analysis Laboratory of the Ministry of Agriculture and Rural AffairsAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen 518120China College of Agronomy and Biotechnology Zhejiang UniversityHangzhou 310058China Agricultural Experimental Station Zhejiang UniversityHangzhou 310058China Rice Research Institute Sichuan Agricultural University at WenjiangChengdu 611130China Institute of Plant Science and Resources Okayama UniversityKurashiki 710‐0046Japan Department of Plant Science University of OxfordOxford OX13RBUnited Kingdom

Cell wall is the first physical barrier to aluminum(Al)*** of cell wall properties to change its binding capacity to Al is one of the major strategies for plant Al resistance;nevertheless,how it is regulated in rice remains largely *** this study,we show that exogenous application of putrescines(Put)could significantly restore the Al resistance of art1,a rice mutant lacking the central regulator Al RESISTANCE TRANSCRIPTION FACTOR 1(ART1),and reduce its Al accumulation particularly in the cell wall of root *** on RNA-sequencing,yeast-onehybrid and electrophoresis mobility shift assays,we identified an R2R3 MYB transcription factor OsMYB30 as the novel target in both ART1-dependent and Put-promoted Al ***,transient dual-luciferase assay showed that ART1 directly inhibited the expression of OsMYB30,and in turn repressed Os4CL5-dependent 4-coumaric acid accumulation,hence reducing the Al-binding capacity of cell wall and enhancing Al ***,Put repressed OsMYB30 expression by eliminating Alinduced H2O2accumulation,while exogenous H2O2promoted OsMYB30 *** concluded that ART1 confers Put-promoted Al resistance via repression of OsMYB30-regulated modification of cell wall properties in rice.

关键词： ART1 cell wall 4‐coumaric acid OsMYB30 Os4CL5 putrescine

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CALCULATOR PROGRAM USED IN THE ANALYSIS OF VARIANCE OF PESTICIDE EXPERIMENTAL DATA

CALCULATOR PROGRAM USED IN THE ANALYSIS OF VARIANCE OF PESTI...

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The ⅩⅤth International Plant Protection Congress

作者： MAO jing-ying and yan Zhen-ling Institute for the Control of Agrochemicals Zhengzhou 450002 Henan Province China

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基于ZKV方法的远程证明AIK证书生成协议

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计算机工程与科学 2012年第11期34卷 55-61页

作者：彭新光荆艳影太原理工大学计算机科学与技术学院山西太原030024

本文首先分析了身份认证密钥证书生成过程中平台信息暴露和可信第三方效率瓶颈等问题,提出了一个可选择的可信计算环境中远程证明身份认证密钥证书生成方案,以保证通信双方终端计算机平台信息的保密性。然后阐述了由零知识证明、Kerbero... 详细信息

本文首先分析了身份认证密钥证书生成过程中平台信息暴露和可信第三方效率瓶颈等问题,提出了一个可选择的可信计算环境中远程证明身份认证密钥证书生成方案,以保证通信双方终端计算机平台信息的保密性。然后阐述了由零知识证明、Kerberos框架和虚拟可信平台模块三种技术相结合的身份认证密钥证书生成协议,称之为ZKV方法。最后对该方法的安全性和效率进行了分析,并构建原型系统验证了该方法的可行性。

关键词： AIK证书 Kerberos技术零知识证明虚拟TPM

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不同进口条件对OGV/前置扩压器流场大涡模拟结果的影响

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航空发动机 2018年第6期44卷 38-43页

作者：张腾李井华颜应文南京航空航天大学能源与动力学院南京210016

为了研究不同进口条件对压气机出口导向叶片(Outlet Guide Vane,OGV)/前置扩压器流场性能的影响,分别采用合成涡方法与白噪声方法生成进口条件,研究不同进口条件对流场数值模拟结果的影响,并与文献给出的试验结果进行对比。结果表明:采... 详细信息

为了研究不同进口条件对压气机出口导向叶片(Outlet Guide Vane,OGV)/前置扩压器流场性能的影响,分别采用合成涡方法与白噪声方法生成进口条件,研究不同进口条件对流场数值模拟结果的影响,并与文献给出的试验结果进行对比。结果表明:采用合成涡方法生成的进口速度场满足试验测得的时均速度分布与脉动均方根分布,且其生成的进口湍流结构可传播到下游较远处;合成涡方法能够较好地预测OGV内的流场,与白噪声方法相比,所预测的OGV吸力面分离区较小;在OGV出口截面、扩压器内和扩压器出口截面,采用2种方法得到的速度分布相差不大,与试验相比分布趋势相同。

关键词：出口导向叶片前置扩压器大涡模拟合成涡方法进口条件航空发动机

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木犀草素(苷)与药物代谢酶相互作用的研究进展

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药学学报 2008年第4期43卷 335-342页

作者：应景艳顾少君姚彤炜浙江大学药学院浙江杭州310058

综述木犀草素及其苷的各相代谢研究及其与药物代谢酶的相互作用。木犀草素的代谢主要受二相代谢酶介导,其苷首先在肠道被水解成苷元,再被吸收,代谢。木犀草素对一相代谢酶CYP3A有诱导作用,而对CYP1A,1B和2E有强抑制作用,此外木犀草素也... 详细信息

综述木犀草素及其苷的各相代谢研究及其与药物代谢酶的相互作用。木犀草素的代谢主要受二相代谢酶介导,其苷首先在肠道被水解成苷元,再被吸收,代谢。木犀草素对一相代谢酶CYP3A有诱导作用,而对CYP1A,1B和2E有强抑制作用,此外木犀草素也是CYP2B6,CYP2C9和CYP2D6有效的抑制剂;木犀草素对二相代谢酶SULTs有强抑制作用;并对多种ABC转运蛋白有抑制作用。了解木犀草素及其苷与药物代谢酶的相互作用,对其临床安全合理用药具有重要指导意义。

关键词：木犀草素药物代谢细胞色素P450 Caco-2细胞

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