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Pectin methylesterase inhibitors GhPMEI53 and AtPMEI19 improve seed germination by modulating cell wall plasticity in cotton and Arabidopsis

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Journal of Integrative Agriculture 2024年第10期23卷 3487-3505页

作者： Yayue Pei Yakong Wang Zhenzhen Wei Ji liu Yonghui li Shuya Ma Ye Wang Fuguang li Jun Peng Zhi Wang Zhengzhou Research Base State Key Laboratory of Cotton Bio-breeding and Integrated UtilizationZhengzhou UniversityZhengzhou 450001China National Nanfan Research Institute(Sanya) Chinese Academy of Agricultural SciencesSanya 572024China National Key Laboratory of Cotton Bio-breeding and Integrated Utilization/Institute of Cotton Research Chinese Academy ofAgricultural SciencesAnyang 455000China

The germination process of seeds is influenced by the interplay between two opposing factors,pectin methylesterase(PME)and pectin methylesterase inhibitor(PMEI),which collectively regulate patterns of pectin *** the recognized importance of pectin methylesterification in seed germination,the specific mechanisms that govern this process remain *** this study,we demonstrated that the overexpression of GhPMEI53is associated with a decrease in PME activity and an increase in pectin *** leads to seed cell wall softening,which positively regulates cotton seed ***19,the homologue in Arabidopsis thaliana,plays a similar role in seed germination to GhPMEI53,indicating a conserved function and mechanism of PMEI in seed germination *** studies revealed that GhPMEI53 and AtPMEI19 directly contribute to promoting radicle protrusion and seed germination by inducing cell wall softening and reducing mechanical ***,the pathways of abscicic acid(ABA)and gibberellin(GA)in the transgenic materials showed significant changes,suggesting that GhPMEI53/AtPMEI19-mediated pectin methylesterification serves as a regulatory signal for the related phytohormones involved in seed *** summary,GhPMEI53 and its homologs alter the mechanical properties of cell walls,which influence the mechanical resistance of the endosperm or ***,they impact cellular phytohormone pathways(e.g.,ABA and GA)to regulate seed *** findings enhance our understanding of pectin methylesterification in cellular morphological dynamics and signaling transduction,and contribute to a more comprehensive understanding of the PME/PMEI gene superfamily in plants.

关键词： cotton seed germination cell wall pectin demethylesterification PMEI ABA

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Targeted metabolomics study of fatty-acid metabolism in lean metabolic-associated fatty liver disease patients

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World Journal of Gastroenterology 2024年第27期30卷 3290-3303页

作者： Pei-Qi Sun Yi-Fu Yuan Qin Cao Xiao-Yan Chen Yuan-Ye Jiang Wen-Min Dong li-li Guo Department of Gastroenterology Putuo HospitalShanghai University of Traditional Chinese MedicineShanghai 200062China Department of Pharmacy Shanghai Pudong HospitalFudan University Pudong Medical CenterShanghai 201399China Central Laboratory Shanghai Chest HospitalShanghai Jiao Tong University School of MedicineShanghai 200030China

BACKGROUND The annual incidence of metabolic-associated fatty liver disease(MAFLD)in China has been increasing and is often overlooked owing to its insidious *** 50%of the patients have a normal weight or are not *** are said to have lean-type MAFLD,and few studies of such patients are *** MAFLD is associated with abnormal lipid metabolism,lipid-targeted metabolomics was used in this study to provide experimental evidence for early diagnosis and *** and analyze metabolic ***-Q-Orbitrap/MS content determination was used to determine serum palmitic acid(PA),oleic acid(OA),linoleic acid(LA),and arachidonic acid(AA)levels in lean-type MAFLD *** Urea nitrogen and uric acid levels were higher in lean-type MAFLD patients than in healthy individuals(Plinesterase levels were higher in lean-type MAFLD patients than in healthy indi-viduals(Plipoprotein and apolipoprotein A-1 were lower in lean-type MAFLD patients than in healthy individuals(Plism of fatty acids were found with P*** levels of PA,OA,LA,and AA were significantly increased compared with healthy *** The metabolic profiles of lean-type MAFLD patients and healthy participants differed significantly,yielding 65 identified ***,OA,LA,and AA exhibited the most significant changes,offering valuable clinical guidance for prevention and treatment of lean-type MAFLD.

关键词： Lean-type metabolic-associated fatty liver disease Targeted serum metabolomics Fatty acids Principal component analysis Orthogonal partial least squares-discriminant analysis

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烟田前茬残留二氯喹啉酸的解毒剂筛选

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烟草科技 2024年第4期57卷 53-60页

作者：李照怡杨敬之尹显慧张竹竹龙友华杨森贵州大学作物保护研究所贵阳市花溪区花溪大道南段2708号550025

为有效修复前茬除草剂二氯喹啉酸土壤残留导致的烟草药害,通过盆栽试验和田间试验筛选出了对烟草二氯喹啉酸药害有较好修复作用的解毒剂及配方。盆栽试验结果表明,赤霉素+吲哚乙酸+尿素+磷酸二氢钾(按质量比1∶1∶64∶32混合)、天达211... 详细信息

为有效修复前茬除草剂二氯喹啉酸土壤残留导致的烟草药害,通过盆栽试验和田间试验筛选出了对烟草二氯喹啉酸药害有较好修复作用的解毒剂及配方。盆栽试验结果表明,赤霉素+吲哚乙酸+尿素+磷酸二氢钾(按质量比1∶1∶64∶32混合)、天达2116、格芙微生物菌剂、赤霉素、吲哚乙酸、尿素+磷酸二氢钾(按质量比2∶1混合)均对药害烟株的叶宽、株高和叶片数有一定的修复效果。其中,以赤霉素+吲哚乙酸+尿素+磷酸二氢钾(按质量比1∶1∶64∶32混合)对药害烟株的修复效果最好,修复后30 d烟株农艺性状与正常烟株无显著差异。田间试验以格芙30000 g/hm^(2)灌根,协同赤霉素+吲哚乙酸+尿素+磷酸二氢钾(按质量比1∶1∶64∶32混合)以1470 g/hm^(2)兑水叶面喷雾的解毒剂配方组合处理烟株长势最好,无畸形症状。与药害烟株相比,修复烟株的叶长、叶宽、株高、茎围和叶片数分别增加46.51%、162.28%、79.70%、79.24%和44.72%,差异达到显著水平。与正常烟株相比,修复烟株烟叶产量、均价、产值和上等烟比例分别提高12.25%、4.48%、17.37%和14.05%。同时,药害烟叶烟碱含量明显降低,且收获期土壤和烟叶中均检测不到二氯喹啉酸。

关键词：烟草药害二氯喹啉酸协同修复

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Clinical manifestations and the prenatal diagnosis of trisomy 7 mosaicism:Two case reports

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World Journal of Clinical Cases 2024年第8期12卷 1544-1548页

作者： Fei Hou Yan li Hua Jin Department of Prenatal Diagnosis Jinan Maternal and Child Health HospitalJinan 250001Shandong ProvinceChina

BACKGROUND The clinical manifestations of trisomy 7 mosaicism are diverse and nonspecific,so prenatal diagnosis is very *** SUMMARY Two pregnant women with abnormal prenatal screening results were *** was a 22-year-old woman(G1P0).At 31st week of gestation,ultrasound revealed that the posterior horn of the left lateral ventricle was 10 mm and the right renal pelvis had a separation of 7 *** other pregnant woman was 33 years old(G2P1L1A0),and her fetus was found to have a cardiac malformation at the 24th week of *** number variation sequencing,whole-exome sequencing and karyotype analysis were carried out after amniocentesis,and both fetuses were diagnosed with trisomy 7 *** parental counseling,one woman continued the pregnancy,and the other woman terminated the *** In trisomy 7 mosaicism,the low proportion of trisomy does not lead to abortion,but can result in abnormal fetal development,which can be detected via ***,clinicians need to pay more attention to various aspects of fetal growth and development,combining with imaging,cellular,molecular genetics and other methods to perform comprehensive evaluations of fetuses to provide more reliable genetic counseling for pregnant women.

关键词： Trisomy 7 mosaicism Copy number variation sequencing Whole-exome sequencing Karyotype analysis Prenatal diagnosis Case report

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多元组织移植在眼睑分裂痣整形外科修复中的应用

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中华整形外科杂志 2024年第3期40卷 300-306页

作者：罗思思卢晓昭杨喆马宁陈森李养群中国医学科学院北京协和医学院整形外科医院尿道下裂整形中心北京100144 天津市河东区中医院整形外科天津300000

目的探讨多元组织移植在眼睑分裂痣手术治疗的临床效果及策略。方法回顾性分析2005年1月至2022年1月,于中国医学科学院整形外科医院尿道下裂整形中心就诊的眼睑分裂痣患者临床资料。手术分为4种。(1)直接切除缝合术;(2)单纯游离植皮术:... 详细信息

目的探讨多元组织移植在眼睑分裂痣手术治疗的临床效果及策略。方法回顾性分析2005年1月至2022年1月,于中国医学科学院整形外科医院尿道下裂整形中心就诊的眼睑分裂痣患者临床资料。手术分为4种。(1)直接切除缝合术;(2)单纯游离植皮术:根据缺损大小,上睑及下睑创面以中厚或全厚皮片覆盖;(3)眼轮匝肌肌皮瓣联合游离植皮术:上睑缺损及下睑近缘处缺损以皮片移植,下睑缺损以同侧眼轮匝肌蒂颞区皮瓣修复;(4)眼轮匝肌为蒂的颞区扩张皮瓣联合游离植皮术:手术分两期,一期手术于患侧颞区置入扩张器,二期手术取出扩张器后,行眼睑病变组织切除,再形成外眦眼轮匝肌眶部为蒂的岛状皮瓣,旋转180°后覆盖下睑缺损,上睑及下睑近睑缘处缺损仍以皮片移植。通过门诊、电话及微信随访患者术后面部外观及眼部运动等情况。采用SPSS 22.0统计软件进行分析,计量资料以±s表示,组内术前及术后颜面部修复重建术后疗效评估标准建议(A&F)评分比较采用配对t检验,P0.05);单纯游离植皮术10例,术后A&F评分(5.13±1.59)分较术前(2.25±1.59)分高,差异无统计学意义(P>0.05);眼轮匝肌肌皮瓣联合游离植皮7例,术后A&F评分(5.54±1.46)分较术前(2.18±1.61)分明显提高,差异有统计学意义(P0.05)。所有患者切口均一期愈合,皮片或皮瓣成活良好,眼睑功能正常。28例患者获得8~81个月随访,其中3例术后继发下睑外翻畸形,3例切口及植皮区黑痣复发,2例植皮区色素沉着较明显,1例继发重力性上睑下垂,其余患者修复效果满意;6例因联系方式变更失访。结论眼轮匝肌肌皮瓣联合游离植皮在中到大面积眼睑分裂痣的整形外科修复中可获得更稳定的效果。上睑及下睑近睑缘处以游离植皮修复,下睑以皮瓣移植修复,更加符合上下睑的生理状态,不同的组织移植方式联合,可使面部容外形更美观。

关键词：眼睑先天性分裂痣组织移植皮瓣外科治疗

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Science communication with science fiction movies

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The Innovation 2024年第2期5卷 17-18页

作者： Yuanzhuo Wang Jingyuan li Yuanhao Cui Department of Computer Science Beijing Technology and Business UniversityNo.33 Fucheng RoadHaidianBeijing 100048China Institute of Computing Technology Chinese Academy of SciencesNo.6 Kexueyuan South RoadHaidianBeijing 100190China School of System Design and Intelligent Manufacturing Southern University of Science and TechnologyNo.1088 Xueyuan AvenueShenzhenGuangdong 518055China

“It is not as easy as it looks,”Holden Thorp,Science’s chief editor,commented at the end of 2021,when explaining new research findings of the COVID-19 pandemic to the public had encountered great difficulties.1 As a matter of fact,science communication has never been easy because serious scientific knowledge is prone to be boring rather than *** is only one atypical medium for science communication,i.e.,the science fiction movie(sci-fi movie for short),that has a huge amount of fans.

关键词： communication editor movie

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Insights of carbon reduction practices from Winter Olympics 2022

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Science Bulletin 2024年第13期69卷 2034-2037页

作者： Xiaoyong liao Shuai Zhong Jie Huang Zhu liu Ayman Elshkaki You li Lei Shen Yingli He li An Yidong Zhu Wenhao Sun Tao liang Jiaoe Wang Jinwei Dong Key Laboratory of Land Surface Pattern and Simulation Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China Key Laboratory for Resources Use and Environmental Remediation Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China Key Laboratory of Regional Sustainable Development Modeling Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Department of Earth System Science Tsinghua UniversityBeijing 100084China

Concerns about the carbon emissions of mega-events revolve,mainly due to the impactful demonstration effects they ***,accurate monitoring of these emissions is crucial during such events[1].The Olympic and Paralympic Winter Games Beijing 2022(hereinafter“Winter Olympics 2022”)are recognized as the first Games to pay close attention to a wide range of emissions associated with all stages of the *** of emerging carbon reduction technologies,such as low-carbon materials and technologies,have shown promising effects on efforts to achieve carbon neutrality[2].The impacts of individual measures,such as Olympic infrastructure construction.

关键词： Winter emissions carbon

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Engineering Ru（N^N）-modified covalent organic framework for photocatalytic olefin epoxidation

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Science China Chemistry 2024年

作者： Yan-lin li Sheng-li Huang Guo-Yu Yang Key Laboratory of Cluster Science (Ministry of Education) Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion MaterialsSchool of Chemistry and Chemical Engineering Beijing Institute of Technology

Photocatalytic olefin oxidation using air as an oxidant is an environmentally friendly method for producing epoxides. Covalent organic frameworks（COFs） have emerged as promising photocatalysts in various organic synthesis reactions. The combination of tri-（2-pyridinal aldehyde）-containing precursor with 4,4',4''-（1,3,5-triazine-2,4,6-triyl）trianiline generated（N^N）-I-COF. Via imine-to-quinoline transformation and coordination anchorage of Ru（N^N）3unit, Ru（N^N）3@Q-COF was obtained with improved chemical stability, skeleton conjugation, and novel photochemical characteristics, and demonstrated excellent photocatalytic activity in olefin epoxidation with a wide range of substrates. The presence of H2O played a crucial role in the formation of reactive oxygen species（ROSs）, which in turn influenced the olefin oxidation process. The hydrophilicity of Ru（N^N）3facilitated the approach of H2O and O2to the photogenerated charges, thereby promoting ROSs generation. The lipophilicity of Q-COF allowed for the absorption of olefin substrates, and its nano-channels increased encountering possibility between olefins and ROSs. Consequently, Ru（N^N）3@Q-COF provided an intriguing platform for olefin photooxidation and could be recycled multiple times without any degradation in performance. This report revealed that the conversion of classical ROSs into less potent oxidants with rapid kinetic rates played a crucial role in achieving highly efficient and selective epoxidation of terminal olefins.

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Discovery of CCDC188 gene as a novel genetic target for human acephalic spermatozoa syndrome

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Protein & Cell 2024年第9期15卷 704-709页

作者： Jing Wang Hui-Juan Jin Yi Lu Zi-Han Wang Teng-Yan li Lan Xia Hong-Jun li Bin-Bin Wang Su-Ren Chen Department of Medical Genetics and Developmental Biology School of Basic Medical SciencesCapital Medical UniversityBeijing 100069China Key Laboratory of Cell Proliferation and Regulation Biology Ministry of EducationDepartment of BiologyCollege of Life SciencesBeijing Normal UniversityBeijing 100875China Graduate School Chinese Academy of Medical Sciences&Peking Union Medical CollegeBeijing 100005China Department of Urology Peking Union Medical College HospitalBeijing 100005China Center for Genetics National Research Institute of Family PlanningBeijing 100081China NHC Key Laboratory of Reproductive Health Engineering Technology Research(NRIFP) Beijing 100081China

Dear Editor,Male infertility is a widespread health problem and affects approximately 6%–8%of the male population(Jiao et al.,2021).Acephalic spermatozoa syndrome(ASS),a rare but severe type of teratozoospermia,is ch... 详细信息

关键词： al. infertility finally

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3D layer-by-layer amorphous MoS_(x) assembled from[Mo_(3)S_(13)]^(2-)clusters for efficient removal of tetracycline:Synergy of adsorption and photo-assisted PMS activation

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Chinese Chemical Letters 2024年第9期35卷 369-375页

作者： Yue li Minghao Fan Conghui Wang Yanxun li Xiang Yu Jun Ding Lei Yan Lele Qiu Yongcai Zhang Longlu Wang School of Chemical and Printing-Dyeing Engineering Henan International Joint Laboratory of Rare Earth Composite MaterialsHenan University of EngineeringXinzheng 451191China School of Material Science and Engineering Henan Polytechnic UniversityJiaozuo 454001China School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225009China College of Electronic and Optical Engineering&College of Microelectronics Institute of Flexible Electronics(Future Technology)Nanjing University of Posts&TelecommunicationsNanjing 210023China

Peroxymonosulfate(PMS)activation and photocatalysis are effective technologies to remove organic pollutants,but the adsorption effect of the catalyst is usually unheeded in degradation ***,a bifunctional catalyst of amorphous MoS_(x)(a-MoS_(x))with 3D layer-by-layer superstructure was synthesized by assembling basic active units[Mo_(3)S_(13)]^(2-)of MoS_(2).The large interlayer spacing and high exposure of active sites render a-MoS_(x)to have excellent synergy of adsorption and photo-assisted PMS activation for tetracycline(TC)*** and DFT calculation show that TC can be efficiently enriched on a-MoS_(x)by pore filling,π-πinteraction,hydrogen bonding and high adsorption ***,PMS can be quickly activated through electron transfer with a-MoS_(x),resulting in high TC degradation efficiency of 96.6%within 20 *** addition,the synergistic mechanism of adsorption and photo-assisted PMS activation was explored,and the degradation pathway of TC was *** work is inspirational for constructing bifunctional catalysts with superior synergistic adsorption and catalytic capabilities to remove refractory organic pollutants in water.

关键词： Bifunctional catalyst [Mo_(3)S_(13)]^(2-) Adsorption Photo-assisted PMS activation Active sites

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