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薄荷茉莉酸信号抑制子McJAZ8基因的鉴定与功能分析

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中国中药杂志 2024年第3期49卷 691-701页

作者：张桂林唐伟林康琴谌明洋徐静天彭丹丹侯凯吴卫徐东北四川农业大学农学院四川成都611130

薄荷作为药食同源植物,具有重要经济价值。茉莉酸信号抑制子JAZ蛋白在调节植物应答逆境胁迫方面具有重要作用。克隆薄荷McJAZ8基因,并分析其蛋白特征、蛋白互作和表达模式,为薄荷抗逆分子育种提供基因资源。该实验将通过生物信息学、酵... 详细信息

薄荷作为药食同源植物,具有重要经济价值。茉莉酸信号抑制子JAZ蛋白在调节植物应答逆境胁迫方面具有重要作用。克隆薄荷McJAZ8基因,并分析其蛋白特征、蛋白互作和表达模式,为薄荷抗逆分子育种提供基因资源。该实验将通过生物信息学、酵母双杂交、烟草叶片瞬时表达、qRT-PCR等技术对McJAZ8的蛋白结构特征、亚细胞定位、蛋白互作与基因表达进行分析。结果显示:①McJAZ8基因全长543 bp,编码180个氨基酸,McJAZ8蛋白具有保守的TIFY和Jas结构域,与拟南芥AtJAZ1和AtJAZ2同源性较高。②McJAZ8蛋白定位于细胞核和细胞质。③酵母双杂交结果显示,McJAZ8与其自身或McJAZ1/3/4/5蛋白互作形成同源或异源二聚体。④McJAZ8在不同组织中均有表达,幼叶中表达量最高。在叶序中,McJAZ8在第4片叶中表达量最高,而第2片叶中表达量最低。⑤在叶片和根中,McJAZ8在茉莉酸甲酯(MeJA)、干旱、NaCl处理下的表达呈不同程度地上调;McJAZ8的表达在CdCl2处理下呈先上调而后下调的模式;在叶片中,McJAZ8的表达在CuCl2处理下呈逐渐下调的趋势,而在根中呈先下调后上调再下调的趋势;在叶片和根中,McJAZ8在AlCl3处理下的表达均呈不同程度的下调。该研究丰富了薄荷中茉莉酸信号抑制子JAZ基因的研究,并为薄荷分子育种提供了基因资源。

关键词：薄荷 McJAZ8基因蛋白特征蛋白互作非生物胁迫表达分析

薄荷茉莉酸受体McCOI1a基因的克隆与表达模式分析

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生物技术通报 2024年第1期40卷 270-280页

作者：唐伟林康琴汪霞谌明洋孙欣江王棵侯凯吴卫徐东北四川农业大学农学院成都611100 四川农业大学草业科技学院成都611100

【目的】茉莉酸(jasmonic acid,JA)受体COI1在调节植物生长发育、逆境响应方面具有重要作用。克隆薄荷McCOI1a基因,并分析其蛋白特征与表达模式,为薄荷分子育种提供基因资源。【方法】基于转录组数据从薄荷叶片中克隆McCOI1a,并通过生... 详细信息

【目的】茉莉酸(jasmonic acid,JA)受体COI1在调节植物生长发育、逆境响应方面具有重要作用。克隆薄荷McCOI1a基因,并分析其蛋白特征与表达模式,为薄荷分子育种提供基因资源。【方法】基于转录组数据从薄荷叶片中克隆McCOI1a,并通过生物信息学分析、烟草叶片瞬时表达、实时荧光定量PCR技术对McCOI1a的蛋白特性、亚细胞定位、基因表达模式进行分析。【结果】McCOI1a基因全长1842 bp,编码613个氨基酸;McCOI1a蛋白具有保守的F-box和LRR结构域,与丹参SmCOI1蛋白同源性最高;亚细胞定位结果显示McCOI1a蛋白定位于细胞核;McCOI1a在不同组织中均有表达,在根中表达量最高,在叶序中表达呈逐渐上升的趋势;在叶片中,McCOI1a在MeJA、干旱、NaCl、AlCl3、CdCl2、CuCl2处理下的表达呈不同程度的上调,并且AlCl3处理下其上调最明显,表达量最高可达1206倍;在根中,McCOI1a的表达在CuCl2处理下呈先下调而后上调的模式,在其余处理下,McCOI1a的表达都呈现出不同程度的下调。【结论】McCOI1a响应MeJA和非生物逆境胁迫,可能在调控薄荷生长发育、逆境响应方面发挥重要作用。

关键词：薄荷 McCOI1a基因蛋白特征胁迫响应表达分析

The NAC-like transcription factor Si NAC110 in foxtail millet(Setaria italica L.) confers tolerance to drought and high salt stress through an ABA independent signaling pathway

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Journal of Integrative Agriculture 2017年第3期16卷 559-571页

作者： XIE Li-na CHEN Ming MIN dong-hong FENG Lu xu Zhao-shi ZHOU Yong-bin xu dong-bei LI Lian-cheng MA You-zhi ZHANG Xiao-hong College of Agronomy North west A &F University Yangling 712100 P.R. China National Key Facility for Crop Gene Resources and Genetic Improvement Ministry of Agriculture/Institute of Crop Sciences Chinese Academy of Agricultural Sciences Beijing 100081 P.R. China College of Sciences Northwest A&F University Yangling 712100 P.R. China

Foxtail millet（Setaria italica（L.）***）is a naturally stress tolerant *** to other gramineous crops,it has relatively stronger drought and lower nutrition stress tolerance *** date,the scope of functional genomics research in foxtail millet（*** L.）has been quite ***（NAM,ATAF1/2 and CUC2）-like transcription factors are known to be involved in various biological processes,including abiotic stress *** our previous foxtail millet（*** L.）RNA seq analysis,we found that the expression of a NAC-like transcription factor,SiNAC110,could be induced by drought stress;additionally,other references have reported that SiNAC110 expression could be induced by abiotic ***,we here selected SiNAC110 for further characterization and functional ***,the predicted SiNAC110 protein encoded indicated SiNAC110 has a conserved NAM（no apical meristem）domain between the 11–139 amino acid *** analysis then indicated that SiNAC110 belongs to subfamily III of the NAC gene *** localization analysis revealed that the SiNAC110-GFP fusion protein was localized to the nucleus in Arabidopsis *** expression profiling analysis indicated that expression of SiNAC110 was induced by dehydration,high salinity and other abiotic *** functional analysis using SiNAC110 overexpressed Arabidopsis plants indicated that,under drought and high salt stress conditions,the seed germination rate,root length,root surface area,fresh weight,and dry weight of the SiNAC110 overexpressed lines were significantly higher than the wild type（WT）,suggesting that the SiNAC110 overexpressed lines had enhanced tolerance to drought and high salt ***,overexpression of SiN AC110 did not affect the sensitivity of SiNAC110 overexpressed lines to abscisic acid（ABA）*** analysis of genes involved in proline synthesis,Na＋/K＋transport,drought responses,and aqueous transport proteins were higher in th

关键词： foxtail millet (Setaria italica (L.) NAC-like transcription factor drought stress high salt stress ABA-independent pathway

The Essential 2-rank for Classical Groups

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Acta Mathematica Sinica,English Series 2024年第9期40卷 2169-2186页

作者： Jian bei AN Yong xu Department of Mathematics University of AucklandAucklandNew Zealand School of Mathematics and Statistics He’nan University of Science and TechnologyLuoyang 471023P.R.China

Let G be a symplectic or orthogonal group defined over a finite field with odd characteristic and let D≤G be a Sylow *** this paper,we classify the essential 2-subgroups and determine the essential 2-rank of the Frobenius category FD(G).Together with the results of An–Dietrich and Cao–An–Zeng,this completes the work of essential subgroups and essential ranks of classical groups.

关键词： Frobenius category conjugation families essential 2-rank symplectic groups orthogonal groups

G-protein β subunit AGB1 positively regulates salt stress tolerance in Arabidopsis

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Journal of Integrative Agriculture 2015年第2期14卷 314-325页

作者： MA Ya-nan CHEN Ming xu dong-bei FANG Guang-ning WANG Er-hui GAO Shi-qing xu Zhao-shi LI Lian-cheng ZHANG Xiao-hong MIN dong-hong MA You-zhi College of Agronomy Northwest A&F University/State Key Laboratory of Arid Region Crop Adversity Biology Institute of Crop Sciences Chinese Academy of Agricultural Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement/Key Laboratory of Biology and Genetic Improvement of Triticeae CropsMinistry of Agriculture beijing Hybrid Wheat Engineering and Technology Research Center

The heterotrimeric GTP-binding proteins（G-proteins） in eukaryotes consisted of α, β and γ subunits and are important in molecular signaling by interacting with G-protein-coupled receptors（GPCR）, on which to transduce signaling into the cytoplast through appropriate downstream effectors. However, downstream effectors regulated by the G-proteins in plants are currently not well defined. In this study, the transcripts of AGB1, a G protein β subunit gene in Arabidopsis were found to be down-regulated by cold and heat, but up-regulated by high salt stress treatment. AGB1 mutant（agb1-2） was more sensitive to high salt stress than wild-type（WT）. Compared with WT, the cotyledon greening rates, fresh weight, root length, seedling germination rates and survival rates decreased more rapidly in agb1-2 along with increasing concentrations of Na Cl in normal（MS） medium. Physiological characteristic analysis showed that compared to WT, the contents of chlorophyll, relative proline accumulation and peroxidase（POD） were reduced, whereas the malonaldehyde（MDA） content and concentration ratio of Na＋/K＋ were increased in agb1-2 under salt stress condition. Further studies on the expression of several stress inducible genes associated with above physiological processes were investigated, and the results revealed that the expressions of genes related to proline biosynthesis, oxidative stress response, Na＋ homeostasis, stress- and ABAresponses were lower in agb1-2 than in WT, suggesting that those genes are possible downstream genes of AGB1 and that their changed expression plays an important role in determining phenotypic and physiologic traits in agb1-2. Taken together, these findings indicate that AGB1 positively regulates salt tolerance in Arabidopsis through its modulation of genes transcription related to proline biosynthesis, oxidative stress, ion homeostasis, stress- and ABA-responses.

关键词： Arabidopsis heterotrimeric G-protein β subunit physiological processes salt stress tolerance

A General Simulation Method for Complex Deformation of Irregular-Shaped Origami Configurations

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Acta Mechanica Solida Sinica 2024年第1期37卷 90-98页

作者： Zhaochen dong Yichao Zhu xu Guo State Key Laboratory of Structural Analysis for Industrial Equipment Department of Engineering MechanicsInternational Research Center for Computational MechanicsDalian University of TechnologyDalian 116023China

Most existing treatments for origami-folding simulations have focused on regular-shaped *** article aims to introduce a general strategy for simulating and analyzing the deformation process of irregular shapes by means of computational capabilities *** better simulate origami deformation with folding orders,the concept of plane follow-up is introduced to achieve automated computer simulation of complex folding patterns,thereby avoiding intersection and penetration between *** on the evaluation criteria such as the lowest storage energy with tightening and the fastest pace from tightening to unfolding,the optimal crease distribution patterns for four irregular(‘N’-,‘T’-,‘O’-,and‘P’-shaped)origami configurations are then presented under five *** the dimensions of the origami are fixed,it is discovered that simpler folding patterns lead to faster deformation of the origami *** the folding complexity is fixed,higher strain energy results in more rapid origami expansion.

关键词： Irregular-shaped origami Complex deformation Computer-aided origami design General simulation

Clinical efficacy and safety of double-channel anastomosis and tubular gastroesophageal anastomosis in gastrectomy

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World Journal of Gastrointestinal Surgery 2024年第7期16卷 2012-2022页

作者： bei-Ying Liu Shuai Wu Yu xu Department of Operation Room The Affiliated HospitalSouthwest Medical UniversityLuzhou 646000Sichuan ProvinceChina Department of Urology Qingdao HospitalUniversity of Health and Rehabilitation Sciences(Qingdao Municipal Hospital)Qingdao 266001Shangdong ProvinceChina Department of Gastrointestinal Surgery Fujian Provincial HospitalFuzhou 350013Fujian ProvinceChina

BACKGROUND With the continuous progress of surgical technology and improvements in medical standards,the treatment of gastric cancer surgery is also *** gastrectomy is a common treatment,but double-channel anastomosis and tubular gastroesophageal anastomosis have attracted much attention in terms of surgical *** of these two surgical methods has advantages and disadvantages,so it is particularly important to compare and analyze their clinical efficacy and *** To compare the surgical safety,clinical efficacy,and safety of double-channel anastomosis and tubular gastroesophageal anastomosis in proximal *** The clinical and follow-up data of 99 patients with proximal gastric cancer who underwent proximal gastrectomy and were admitted to our hospital between January 2018 and September 2023 were included in this retrospective cohort *** to the different anastomosis methods used,the patients were divided into a double-channel anastomosis group(50 patients)and a tubular gastroesophageal anastomosis group(49 patients).In the double-channel anastomosis,Roux-en-Y anastomosis of the esophagus and jejunum was performed after proximal gastric dissection,and then side-to-side anastomosis was performed between the residual stomach and jejunum to establish an antireflux barrier and reduce postoperative gastroesophageal *** the tubular gastroesophageal anastomosis group,after the proximal end of the stomach was cut,tubular gastroplasty was performed on the distal stump of the stomach and a linear stapler was used to anastomose the posterior wall of the esophagus and the anterior wall of the stomach *** main outcome measure was quality of life 1 year after surgery in both groups,and the evaluation criteria were based on the postgastrectomy syndrome assessment *** greater the changes in body mass,food intake per meal,meal quality subscale score,and total measures of physical and mental health score,the better th

关键词： Gastric neoplasms Proximal gastrectomy Digestive tract reconstruction Dual channel reconstruction Tubular stomach reconstruction Retrospective cohort study

Rapid and chemoselective imidation of sulfides in aqueous buffer enabled by a novel guanidine-derived N-O reagent

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Science China Chemistry 2024年第6期67卷 1929-1934页

作者： Hanzheng Li Long xu Jiajia dong Key Laboratory of Organofluorine Chemistry Center for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of SciencesShanghai200032China Institute of Translational Medicine National Facility for Translational Medicine(Shanghai)Shanghai Jiao Tong UniversityShanghai200240China School of Chemistry and Chemical Engineering Zhangjiang Institute for Advanced StudyShanghai Jiao Tong UniversityShanghai200240China Shanghai Artificial Intelligence Laboratory Shanghai200232China

Herein we report the facile synthesis of a series of novel N-O reagents and identify N′-di-Boc-N′′-[(mesitylsulfonyl)oxy]-guanidine as an efficient imidating *** reagent is synthetically scalable and bench-stable,yet it shows unprecedented reactivity and chemoselectivity towards S(II)in buffer/hexafluoroisopropanol(HFIP)system,to generate a new class of Nguanyl *** transformation of N-guanyl sulfilimines to N-guanyl sulfoximines provides us a chance to investigate these rarely reached compounds,which are shown to be versatile precursors to a variety of N-heterocyclic and *** work provides an addition to the tool box of both sulfur imidation and guanidine synthesis,especially for the need of rapid and selective modifications of sulfur(II)center under biocompatible conditions.

关键词： sulfur imidation N-O reagent

Development of multi-functional anchorage support dynamic-static coupling performance test system and its application

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International Journal of Mining Science and Technology 2024年第3期34卷 339-349页

作者： Qi Wang Shuo xu bei Jiang Chong Zhang Zhe Sun Jingxuan Liu Cailin Jiao State Key Laboratory for Tunnel Engineering China University of Mining&Technology-BeijingBeijing 100083China Research Center of Geotechnical and Structural Engineering Shandong UniversityJinan 250061China

In underground engineering with complex conditions,the bolt(cable)anchorage support system is in an environment where static and dynamic stresses coexist,under the action of geological conditions such as high stresses and strong disturbances and construction conditions such as the application of high *** is essential to study the support components performance under dynamic-static coupling *** on this,a multi-functional anchorage support dynamic-static coupling performance test system(MAC system)is developed,which can achieve 7 types of testing functions,including single component performance,anchored net performance,anchored rock performance and so *** bolt and cable mechanical tests are conducted by MAC system under different prestress *** results showed that compared to the non-prestress condition,the impact resistance performance of prestressed bolts(cables)is significantly *** the prestress range of 50–160 k N,the maximum reduction rate of impact energy resisted by different types of bolts is 53.9%–61.5%compared to non-prestress *** the prestress range of 150–300 k N,the impact energy resisted by high-strength cable is reduced by76.8%–84.6%compared to non-prestress *** MAC system achieves dynamic-static coupling performance test,which provide an effective means for the design of anchorage support system.

关键词： Anchorage support system Development of test system Dynamic-static coupling test Combined stress