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Effects of environment and genotype-by-environment interaction on phenotype of Rorippa elata(Brassicaceae),an endemic alpine plant in the Hengduan mountains

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Journal of Plant Ecology 2024年第4期17卷 42-55页

作者： zhi-qiang du Yao-Wu Xing Ting-Shen Han CAS Key Laboratory of Tropical Forest Ecology Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesMengla 666303China University of Chinese Academy of Sciences Beijing 100049China State Key Laboratory of Plant Diversity and Specialty Crops Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesMengla 666303China

Global climate change poses a severe threat to mountain *** plasticity and local adaptation are two common strategies for alpine plant to cope with such *** may facilitate organismal adaptation to contrasting environments,depending on the influences of the environment or genotype or their interacted *** this study,we use an endemic alpine plant(Rorippa elata)in the Hengduan mountains(HDM)to unravel its phenotypic basis of adaptation strategy and evaluate the relative contributions of environment and genotype to its *** transplanted 37 genotypes of *** into two common gardens across low and high elevations(2800 vs.3800 m)during *** fitness-related traits were measured,including flowering probability and glucosinolates(GS)*** estimated the environmental or genotypic contributions to the phenotype and identified the main environmental *** results revealed that both environment and genotype-by-environment interactions contributed to the phenotypes of *** heterogeneity was identified as a key factor that explained 24%of the total phenotypic *** particular,genotypes of the northern HDM showed significantly higher plasticity in flowering probability than those of the southern ***,within the southern HDM,GS content indicated local adaptation to herbivory stresses for *** genotypes along *** conclusion,our results suggest that *** may have adapted to the alpine environment through species-level plasticity or regional-level local *** processes were shaped by either complex topography or interactions between genotype and mountain *** study provides empirical evidence on the adaptation of alpine plants.

关键词： alpine plant common garden genotype-by-environment Hengduan mountains local adaptation phenotypic plasticity

Taxonomic synopsis of Berberis(Berberidaceae)from the northern Hengduan mountains region in China,with descriptions of seven new species

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Plant Diversity 2022年第5期44卷 505-517页

作者： Yao-Ke Li Julian Harber Chuan Peng zhi-qiang du Yao-Wu Xing Chih-Chieh Yu CAS Key Laboratory of Tropical Forest Ecology Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesMenglaYunnan666303China University of Chinese Academy of Sciences Beijing100049China Research Associate Missouri Botanic GardenMytholmroydWest YorkshireUK Center of Plant Ecology Core Botanical GardensChinese Academy of SciencesMenglaYunnan666303China

Though Berberis(Berberidaceae)is widely distributed across the Eurasian landmass it is most diverse in the Himalaya-Hengduan Mountain(HHM)*** are more than 200 species in China where it is one of the most common mountain *** study on the taxonomy and evolution of Berberis in this region can thus provide an important insight into the origin and diversification of its flora.A prerequisite to this is mapping and describing the various species of Berberis in the region-a task that despite recent progress is by no means *** is clear that in China there may be a significant number of species still to be described and that even with published species much about their distribution remains to be *** a contribution to the first of these tasks seven new species from the northern Hengduan Mountain of *** and ***:Berberis chinduensis,Berberis degexianensis,Berberis jiajinshanensis,Berberis jinwu,Berberis litangensis,Berberis longquensis and Berberis riparia,are described *** in overall morphology and especially in floral structures with each other and with similar species of Berberis in the same region are *** report is the result of phylogenetic analyses based on plastome and partial nrDNA sequences of both the seven proposed new species and a significant number of similar species already *** conclusions as to the insights provides on the history of the genetic divergence are discussed.

关键词： Berberidaceae Flora of China Herbarium taxonomy Plastome sequences nrDNA sequences

Endoscopic treatment for acute appendicitis with coexistent acute pancreatitis: Two case reports

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World Journal of Clinical Cases 2021年第1期9卷 245-251页

作者： zhi-qiang du Wen-Juan Ding Fei Wang Xiang-Rong Zhou Tian-Ming Chen Department of Gastroenterology Jianyang People’s Hospital of Sichuan ProvinceJianyang 641400Sichuan ProvinceChina

BACKGROUND Appendectomy is the procedure of choice for the treatment of acute ***,surgery may not be appropriate for patients with coexisting severe illness or comorbidities such as acute pancreatitis(AP).Endoscopic retrograde appendicitis treatment(ERAT)may be a novel alternative to surgery for treating such patients where existing medical therapies have *** SUMMARY We report 2 cases of moderately severe AP who developed acute uncomplicated appendicitis during their hospital stay and did not respond to traditional medical *** patient had moderately severe AP due to hyperlipidemia,while the other patient had a gallstone induced by moderately severe *** patient was fit to undergo an appendectomy procedure because of the concurrent ***,the alternative and minimally invasive ERAT was *** written informed consent was collected from the patients,the ERAT procedure was *** patients exhibited fast postoperative recovery after ERAT with minimal surgical *** ERAT is a safe and effective minimally invasive endoscopic procedure for acute appendicitis in patients with coexistent AP.

关键词： Endoscopic retrograde appendicitis treatment Acute pancreatitis Acute appendicitis Minimally invasive endoscopic procedure Safety and effectiveness Case report

Bouveret syndrome: A case report

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World Journal of Clinical Cases 2019年第23期7卷 4144-4149页

作者： Fei Wang zhi-qiang du Yi-Lan Chen Tian-Ming Chen Yue Wang Xiang-Rong Zhou Department of Gastroenterology People’s Hospital of Jianyang City

BACKGROUND Bouveret syndrome is a rare complication of cholelithiasis,with only 315 cases reported in the literature between 1967 and *** in diagnosis is associated with a high mortality *** is based upon clinical manifestations,gastroscopy,and imaging studies such as abdominal computed tomography and magnetic resonance *** stone extraction or lithotripsy is the preferred choice for treatment as it is safe and minimally invasive with few ***,if endoscopy fails,surgery is *** SUMMARY A 61-year-old female patient presented with recurrent epigastric pain for more than 6 *** endoscopy,a large amount of food residue was present in the stomach with multiple stones and ulcers in the antro-pyloric *** on these findings,a diagnosis of gastrolithiasis was ***,computed tomography of the abdomen revealed the correct diagnosis of Bouveret ***,endoscopic treatment was attempted but it ***,she was successfully managed by cholecystectomy with duodenal stone extraction and fistula repair(one-step method).At the last follow-up 6 mo after surgery,the patient was *** Bouveret syndrome is a rare complication of gallstones that requires prompt endoscopic or surgical treatment to prevent mortality.

关键词： Bouveret syndrome Gallstones Intestinal obstruction Case report

Adaptive responses drive the success of polyploid yellowcresses(Rorippa,Brassicaceae)in the Hengduan Mountains,a temperate biodiversity hotspot

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Plant Diversity 2022年第5期44卷 455-467页

作者： Ting-Shen Han Zheng-Yan Hu zhi-qiang du Quan-Jing Zheng Jia Liu Thomas Mitchell-Olds Yao-Wu Xing CAS Key Laboratory of Tropical Forest Ecology Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesMenglaYunnan 666303China Center of Plant Ecology Core Botanical GardensChinese Academy of SciencesMenglaYunnan 666303China Department of Biology Duke UniversityBox 90338DurhamNC 27708USA University of Chinese Academy of Sciences Beijing 100049China

Polyploids contribute substantially to plant evolution and biodiversity;however,the mechanisms by which they succeed are still *** to the polyploid adaptation hypothesis,successful polyploids spread by repeated adaptive responses to new ***,we tested this hypothesis using two tetraploid yellowcresses(Rorippa),the endemic Rorippa elata and the widespread Rorippa palustris,in the temperate biodiversity hotspot of the Hengduan *** modes were resolved by phylogenetic modeling using 12 low-copy nuclear *** patterns were then examined using haplotypes phased from four plastid and ITS markers,coupled with historical niche reconstruction by ecological niche *** inferred the time of hybrid origins for both species as the mid-Pleistocene,with shared glacial refugia within the southern Hengduan *** and ecological niche reconstruction indicated recurrent northward colonization by both species after speciation,possibly tracking denuded habitats created by glacial retreat during interglacial *** garden experiment involving perennial *** conducted over two years revealed significant changes in fitness-related traits across source latitudes or altitudes,including latitudinal increases in survival rate and compactness of plant architecture,suggesting gradual adaptation during range *** findings support the polyploid adaptation hypothesis and suggest that the spread of polyploids was aided by adaptive responses to environmental changes during the *** results thus provide insight into the evolutionary success of polyploids in high-altitude environments.

关键词： Adaptation Hengduan mountains Pleistocene Polyploidy Rorippa

The genomic clock:exploring the relationship between telomere length and mental disorders

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Psychosomatic Medicine Research 2023年第3期5卷 29-30页

作者： Ying Jiang zhi-qiang du Hao-Hao Zhu Mental Health Center of Jiangnan University Wuxi Central Rehabilitation HospitalWuxi 214151China

In the realm of neurology and cellular aging,a compelling nexus is being drawn between mental disorders and the intricate clockwork of our genetic machinery,specifically telomere length(TL)[1-3].This bond hints at an unexpected interplay between mental health and aging,promising insights that could reshape our understanding of both arenas.

关键词： disorders aging insight

Effect of excitation current intensity on mechanical properties of ZL205A castings solidified under a traveling magnetic field

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China Foundry 2015年第3期12卷 196-201页

作者： Xue-yi Fan Liang Wang zhi-qiang du Yan-qing Su Jian-bing Zhang Liang-shun Luo Zu-chuan Liu Da-ming Xu Jing-jie Guo National Key Laboratory for Precision Hot Processing of Metals School of Materials Science and Engineering Harbin institute of Technology Harbin 150001 China Tianjin Long March Launch Vehicle Manufacturing Co. Ltd. Tianjin 300462 China China Shoudu Space Machinery Company Beijing 100076 China

The effect of excitation current intensity on the mechanical properties of ZL205 A castings solidified under a traveling magnetic field was studied. The results of the experiment indicate that the excitation current intensity of the traveling magnetic field has a great influence on the mechanical properties of the ZL205 A castings. When the excitation current intensity is 15 A, the tensile strength and elongation of ZL205 A alloy castings increase 27.2% and 67.7%, respectively, compared with those of the same alloy solidified under gravity. The improvement of mechanical properties is attributed to the decrease of micro-porosity in the alloy. Under the traveling magnetic field, the feeding pressure in the alloy melt before solidification can be enhanced due to the electromagnetic force. Moreover, the melt flow induced by the traveling magnetic field can decrease the temperature gradient. The feeding resistance will be increased because the temperature gradient decrease. So traveling magnetic field has an optimum effect on feeding.

关键词： TMF ZL205A alloy excitation current intensity mechanical properties optimum effect

闭式冷弯成形辊花设计映射数学模型及实验研究

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工程力学 2017年第3期34卷 227-231页

作者：于辉付志强杜凤山燕山大学国家冷轧板带装备及工艺工程技术研究中心秦皇岛066004 天津科技大学包装与印刷工程学院天津300222

针对金属闭式冷弯成形的多道次孔型轧制特点,考虑轧前管坯的轮廓与轧后异型管的轮廓存在拓扑等价关系和边界域的不动点性质,以双圆弧插值函数描述异型管的复杂轮廓,建立两者之间的形心映射数学模型,实现各道次孔型设计,绘制异型管闭式... 详细信息

针对金属闭式冷弯成形的多道次孔型轧制特点,考虑轧前管坯的轮廓与轧后异型管的轮廓存在拓扑等价关系和边界域的不动点性质,以双圆弧插值函数描述异型管的复杂轮廓,建立两者之间的形心映射数学模型,实现各道次孔型设计,绘制异型管闭式冷弯成形过程的辊花图。以铝合金圆管为坯料在试验轧机上进行了扇形管冷弯成形轧制实验,结果表明:轧后的扇形管内外轮廓变形柔顺且无凹凸点,壁厚偏差小于±0.5 mm,角部误差小于±1.5°,满足GB/T 6728-2002国标要求,研究结果为异型管冷弯成形的轧辊辊花设计提供了一种新方法。

关键词：冷弯成形辊花设计形心映射双圆弧插值轧制实验

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GEOMETRIC STRUCTURE OF ETHYLENOXIDE ADSORBED ON Cu(110) SURFACE

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真空科学与技术学报 1992年第Z1期23卷 123-126页

作者： Xun Sheng Zhang Department of Physics, Zhejiang University Hangzhou 310027, P.R.China zhi qiang du Department of Chemistry, Zhejiang University

The binding energies of ethylene oxide (Et-O) adsorbed on Cu(110) surface for different adsorption sites and orientations are calculated with an atom superposition and electron delocalization molecular orbital (ASED-MO) using cluster models. It shows that the top site of Cu(110) surface is preferable for Et-O adsorption and the orientation of C-C bond of Et-O is parallel to the [110] direction of the substratc. The distance of an oxygen of Et-O to the Cu atom is approximately 1.5817(?). It is different from the supposition of C. Benndorf et al., in which the oxygen was proposed on the short bridge site with C-C bond orientating to [110] direction of Cu(110)

关键词： 110 GEOMETRIC STRUCTURE OF ETHYLENOXIDE ADSORBED ON Cu SURFACE