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Transcriptional regulation of oil biosynthesis inseed plants: Current understanding, applications,and perspectives

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Plant Communications 2022年第5期3卷 19-37页

作者： Yuzhou Yang Que Kong Audrey R.Q.Lim Shaoping Lu hu zhao Liang Guo Ling Yuan Wei Ma School of Biological Sciences Nanyang Technological UniversitySingapore 637551Singapore National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural UniversityWuhan 430070China hubei Hongshan Laboratory Wuhan 430070China Department of Plant and Soil Sciences Kentucky Tobacco Research and Development CenterUniversity of KentuckyLexingtonKY 40546USA Guangdong Provincial Key Laboratory of Applied Botany South China Botanical GardenChinese Academy of SciencesGuangzhou 510650China

Plants produce and accumulate triacylglycerol(TAG)in their seeds as an energy reservoir to support the processes of seed germination and seedling *** seed oils are vital not only for the human diet but also as renewable feedstocks for industrial *** biosynthesis consists of two major steps:de novo fatty acid biosynthesis in the plastids and TAG assembly in the endoplasmic *** latest advances in unraveling transcriptional regulation have shed light on the molecular mechanisms of plant oil *** summarize recent progress in understanding the regulatory mechanisms of wellcharacterized and newly discovered transcription factors and other types of regulators that control plant fatty acid *** emerging picture shows that plant oil biosynthesis responds to developmental and environmental cues that stimulate a network of interacting transcriptional activators and repressors,which in turn fine-tune the spatiotemporal regulation of the pathway genes.

关键词： plant oil biosynthesis oil accumulation seed development environmental and developmental signals transcription factor transcriptional regulation

One Couple—Two Scientists

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Women of China 1998年第4期 34-35页

作者： hu zhao HONG LIU

EVEN as more and more of the world’s mysteries are revealed to us, we remain largely ignorant about ourselves. What is life? This question has puzzled philosophers for ages, but only recently, with the speed of scientific development, has the field of molecular biology been able to promise a scientific answer to this Sphinx’s riddle. The secrets are being gradually unveiled for Zeng Yitao and huang Shuzhen. Both in their career and in real life, the couple is now standing at the forefront of the study of life.

关键词： One Couple Two Scientists

Optimizing the application of a novel harvest aid to improve the quality of mechanically harvested cotton in the North China Plain

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Journal of Integrative Agriculture 2021年第11期20卷 2892-2899页

作者： MENG Lu ZHANG Li-zhen QI Hai-kun DU Ming-wei ZUO Yan-li ZHANG Ming-cai TIAN Xiao-li LI zhao-hu Engineering Research Center of Plant Growth Regulator Ministry of Education/College of Agronomy and BiotechnologyChina Agricultural UniversityBeijing 100193P.R.China College of Resources and Environmental Sciences China Agricultural UniversityBeijing 100193P.R.China Hebei Cottonseed Engineering Technology Research Center Hejian 062450P.R.China

Defoliation is an indispensable step in cotton production with mechanical harvesting,especially in the North China Plain(NCP)where mechanical harvesting is limited by a large proportion of green leaves and unopened bolls at harvest time due to insufficient thermal *** is essential to quantify the optimal use of defoliation products while minimizing yield and quality loss in *** objective of this study was to test the effect of a new defoliant Xinsaili(XSL,a compound of 10% thidiazuron and 40% ethephon)on the spatial distribution of cotton leaves and bolls,yield and quality in the *** were four treatments:XSL 1800 m L ha^(-1),XSL 2700 m L ha^(-1),XSL splitted into two equal applications(1350 m L ha^(-1) for each),and XSL-free(water)*** experiments were conducted in Hebei,China in *** the defoliant treatments did not significantly affect cotton yield and fiber quality compared with the water *** harvest time,the rate of open bolls under XSL 2700 m L ha^(-1) was 13.5% higher than that under XSL-free control,while the other two treatments showed no significant difference,across the two *** percentage of the three XSL treatments showed no difference,but they were on average 42.2% higher than that of XSL-free *** year-round effect of the defoliant XSL was significant,indicating that climate factors would affect its *** was concluded that the optimal dose of XSL in the NCP was 2700 m L ha^(-1),and it was unnecessary to split it into two *** results would promote cotton mechanical harvesting and reduce the labor cost of cotton production in China.

关键词： thidiazuron ethephon defoliation leaf distribution yield components

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可调制激光器的红外探测器响应测试系统

光电工程 2009年第1期36卷 135-139页

作者：赵虎北方民族大学电信学院银川750021

为了解决红外探测器生产、科研和测试中对响应均匀性、一致性和成品率的要求,用可调制半导体激光器替代黑体辐射源,设计了一套红外探测器表面响应测试系统。该系统应用计算机技术控制二维扫描平台,完成探测器平面的响应数据采集,通过VB... 详细信息

为了解决红外探测器生产、科研和测试中对响应均匀性、一致性和成品率的要求,用可调制半导体激光器替代黑体辐射源,设计了一套红外探测器表面响应测试系统。该系统应用计算机技术控制二维扫描平台,完成探测器平面的响应数据采集,通过VB调用MATLAB三维图形输出技术,直观的反映出探测器表面的响应情况。该系统自动完成整个测试过程,测试精度达到了0.0012V,为探测器的自动化检测和科研提供了先进的方法和测试平台。

关键词：红外探测器激光器测试

Reducing Influence of Gravity Model Error in Precise Orbit Determination of Low Earth Orbit Satellites

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Geo-Spatial Information Science 2007年第2期10卷 105-110页

作者： GUO Jinlai hu Min zhao Qile GUO Daoyu School of Geodesy and Geomatics Wuhan University 129 Luoyu Road Wuhan 430079 China

Based on the orbit integration and orbit fitting method, the influence of the characters of the gravity model, with different precisions, on the movement of low Earth orbit satellites was studied. The way and the effect of absorbing the influence of gravity model error on CHAMP and GRACE satellite orbits, using linear and periodical empirical acceleration models and the so-called "pseudo-stochastic pulses" model, were also analyzed.

关键词： precise orbit determination gravity model orbit fitting

Photonic crystal vertical-cavity surface-emitting laserbased on GaAs material

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Chinese Science Bulletin 2007年第18期52卷 2473-2476页

作者： XU XingSheng WANG ChunXia SONG Qian DU Wei hu HaiYang zhao ZhiMin LU Lin KAN Qiang CHEN HongDa State Key Laboratory of Integrated Optoelectronics Institute of Semiconductor Chinese Academy of Sciences Beijing 100083China

A photonic crystal vertical-cavity-surface-emitting laser (PC-VCSEL) with a wavelength of about 850 nm was realized. The direct-current electrically-driven PC-VCSELs with a minimum threshold current of 2 mA and a maximum threshold current of 13.5 mA were obtained. We fabricated a series of PC-VCSEL chips whose lattice constants are in the range from 0.5 to 3 μm with different filling factors, and found that the laser characterization depends on the lattice constant, the filling factor, the size of cavity, etc.

关键词：光子晶体空穴表面发射激光单模激光砷化镓

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结合价值流程图与数字孪生技术的工厂设计

计算机集成制造系统 2019年第6期25卷 1481-1490页

作者：赵虎赵宁张赛朋北京科技大学机械工程学院北京100083 西门子咨询北京100102

随着智能制造的发展,重新设计和建设精益的智能工厂成为当前很多企业的目标。为了快速找到满足精益目标的工厂设计方案,提出了价值流与数字孪生技术相结合的方法。首先通过价值流设计粗规划,再结合数字孪生进行详细设计,并通过数字孪生... 详细信息

随着智能制造的发展,重新设计和建设精益的智能工厂成为当前很多企业的目标。为了快速找到满足精益目标的工厂设计方案,提出了价值流与数字孪生技术相结合的方法。首先通过价值流设计粗规划,再结合数字孪生进行详细设计,并通过数字孪生实现全过程迭代优化设计,最终高效获得精益的智能工厂设计方案。价值流与数字孪生结合的方法提供了数字孪生技术在工厂规划的应用场景,对从工厂规划概念设计到落地实施的整个阶段具有重要意义,为构建工厂全生命周期数字孪生模型提供了借鉴。

关键词：数字孪生工厂设计价值流程图仿真智能制造

Genome-Wide Association Studies of Image Traits Reveal Genetic Architecture of Drought Resistance in Rice

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Molecular Plant 2018年第6期11卷 789-805页

作者： Zilong Guo Wanneng Yang Yu Chang Xiaosong Ma Haifu Tu Fang Xiong Ni Jiang hui Feng Chenglong huang Peng Yang hu zhao Guoxing Chen Hongyan Liu Lijun Luo Honghong hu Qian Liu Lizhong Xiong National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan) Huazhong Agricultural University Wuhan 430070 China hubei Key Laboratory of Agricultural Bioinformatics Huazhong Agricultural University Wuhan 430070 China College of Engineering Huazhong Agricultural University Wuhan 430070 China Shanghai Agrobiological Gene Center Shanghai 201106 China Britton Chance Center for Biomedical Photonics Wuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology Wuhan 430074 China MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River Huazhong Agricultural University Wuhan 430070 China

Understanding how plants respond to drought can benefit drought resistance （DR） breeding. Using a non-destructive phenotyping facility, 51 image-based traits （i-traits） for 507 rice accessions were extracted. These i-traits can be used to monitor drought responses and evaluate DR. High heritability and large variation of these traits was observed under drought stress in the natural population. A genome-wide as- sociation study （GWAS） of i-traits and traditional DR traits identified 470 association loci, some containing known DR-related genes. Of these 470 loci, 443 loci （94%） were identified using i-traits, 437 loci （93%） co- localized with previously reported DR-related quantitative trait loci, and 313 loci （66.6%） were reproducibly identified by GWAS in different years. Association networks, established based on GWAS results, revealed hub i-traits and hub loci. This demonstrates the feasibility and necessity of dissecting the complex DR trait into heritable and simple i-traits. As proof of principle, we illustrated the power of this integrated approach to identify previously unreported DR-related genes. OsPP15 was associated with a hub i-trait, and its role in DR was confirmed by genetic transformation experiments. Furthermore, i-traits can be used for DR linkage analyses, and 69 i-trait locus associations were identified by both GWAS and linkage analysis of a recom- binant inbred line population. Finally, we confirmed the relevance of i-traits to DR in the field. Our study pro- vides a promising novel approach for the genetic dissection and discovery of causal genes for DR.

关键词： image-based trait natural variation GWAS drought response drought resistance rice

Genome-and transcriptome-wide association studies provide insights into the genetic basis of natural variation of seed oil content in Brassica napus

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Molecular Plant 2021年第3期14卷 470-487页

作者： Shan Tang hu zhao Shaoping Lu Liangqian Yu Guofang Zhang Yuting Zhang Qing-Yong Yang Yongming Zhou Xuemin Wang Wei Ma Weibo Xie Liang Guo National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural UniversityWuhanChina hubei Key Laboratory of Agricultural Bioinformatics College of InformaticsHuazhong Agricultural UniversityWuhanChina Department of Biology University of Missouri-St.LouisSt.LouisMO 63121USA Donald Danforth Plant Science Center St.LouisMO 63132USA School of Biological Sciences Nanyang Technological UniversitySingapore 637551Singapore

Seed oil content(SOC)is a highly important and complex trait in oil ***,we decipher the genetic basis of natural variation in SOC of Brassica napus by genome-and transcriptome-wide association studies using 505 inbred *** mapped reliable quantitative trait loci(QTLs)that control SOC in eight environments,evaluated the effect of each QTL on SOC,and analyzed selection in QTL regions during ***-hundred and ninety-two genes and four gene modules significantly associated with SOC were identified by analyzing population transcriptomes from seeds.A gene prioritization framework,POCKET(prioritizing the candidate genes by incorporating information on knowledge-based gene sets,effects of variants,genome-wide association studies,and transcriptome-wide association studies),was implemented to determine the causal genes in the QTL regions based on multi-omic datasets.A pair of homologous genes,BnPMT6s,in two QTLs were identified and experimentally demonstrated to negatively regulate *** study provides rich genetic resources for improving SOC and valuable insights toward understanding the complex machinery that directs oil accumulation in the seeds of *** and other oil crops.

关键词： Brassica napus seed oil content QTL GWAS TWAS gene module