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Effect of delayed sowing on grain number, grain weight, and protein concentration of wheat grains at specific positions within spikes

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Journal of Integrative Agriculture 2023年第8期22卷 2359-2369页

作者： CHU Jin-peng GUO xin-hu ZHENG Fei-na zhang Xiu DAI xing-long HE Ming-rong State Key Laboratory of Crop Biology/Key Laboratory of Crop Ecophysiology and Farming System Ministry of Agriculture and Rural Affairs/Agronomy CollegeShandong Agricultural UniversityTai'an 271018P.R.China

Delays in sowing have significant effects on the grain yield,yield components,and grain protein concentrations of winter ***,little is known about how delayed sowing affects these characteristics at different positions in the wheat *** this study,the effects of sowing date were investigated in a winter wheat cultivar,Shannong 30,which was sown in 2019 and 2020 on October 8(normal sowing)and October 22(late sowing)under field *** sowing increased the partitioning of ^(13)C-assimilates to spikes,particularly to florets at the apical section of a spike and those occupying distal positions on the same ***,the increase in grain number was the greatest for the apical sections,followed by the basal and central *** significant differences were observed between sowing dates in the superior grain number in the basal and central sections,while the number in apical sections was significantly *** number of inferior grains in each section also increased substantially in response to delayed *** average grain weights in all sections remained unchanged under delayed sowing because there were parallel increases in grain number and ^(13)C-assimilate partitioning to grains at specific positions in the *** in grain number m^(–2) resulted in reduced grain protein concentrations as the limited nitrogen supply was diluted into more *** sowing caused the greatest reduction in grain protein concentration in the basal sections,followed by the central and apical *** significant differences in the reduction of the grain protein concentration were observed between the inferior and superior grains under delayed *** conclusion,a 2-week delay in sowing improved grain yield through increased grain number per spike,which originated principally from an increased grain number in the apical sections of spikes and in distal positions on the same ***,grain protein concentrations dec

关键词： wheat delay in sowing grain number grain weight grain protein concentration

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Developing a new model system for potato genetics by androgenesis

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Journal of Integrative Plant Biology 2021年第4期63卷 628-633页

作者： Miru Du Ting Wang Qun Lian Xiaojie zhang Guohui xin Yuanyuan Pu Glenn JBryan Jianjian Qi Inner Mongolia Potato Engineering and Technology Research Center Inner Mongolia UniversityHohhot 010021China Shenzhen Branch Guangdong Laboratory for Lingnan Modern AgricultureGenome Analysis Laboratory of the Ministry of AgricultureAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen 518000China Cell and Molecular Sciences The James Hutton InstituteInvergowrieDundee DD25DAUK

High heterozygosity and tetrasomic inheritance complicate studies of asexually propagated polyploids,such as *** genetics approaches,especially mutant library construction,can be an ideal choice if a proper mutagenesis genotype is ***,we aimed to generate a model system for potato research using anther cultures of Solanum verrucosum,a self-compatible diploid potato with strong late blight *** of the 23 regenerants obtained(SVA4,SVA7,SVA22,SVA23,SVA32,and SVA33)were diploids,and their homozygosity was estimated to be>99.99%with 22 polymorphic In Del *** lines-SVA4 and SVA32-had reduced stature(plant height≤80 cm),high seed yield(>1,000 seeds/plant),and good tuber set(>30 tubers/plant).We further confirmed the full homozygosity of SVA4 and SVA32 using wholegenome *** two regenerants possess all the characteristics of a model plant:diploidy,100%homozygosity,self-compatibility,and amenability to ***,we have successfully generated two lines,SVA4 and SVA32,which can potentially be used for mutagenesis and as model plants to rejuvenate current methods of conducting potato research.

关键词： diploid potato homozygous model system self-compatible Solanum verrucosum

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Realizing Stable Carbonate Electrolytes in Li-O_(2)/CO_(2)Batteries

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Chinese Journal of Chemistry 2023年第3期41卷 314-321页

作者： Kai Chen Jia-Yi Du Jin Wang Dong-Yue Yang Jiang-Wei Chu Hao Chen Hao-Ran zhang Gang Huang xin-Bo zhang State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchunJilin130022 China School of Applied Chemistry and Engineering University of Science and Technology of ChinaHefeiAnhui230026 China

The increasing demand for high-energy storage systems has propelled the development of Li-air batteries and Li-O_(2)/CO_(2)batteries to elucidate the mechanism and extend battery ***,the high charge voltage of Li2CO3 accelerates the decomposition of traditional sulfone and ether electrolytes,thus adopting high-voltage electrolytes in Li-O_(2)/CO_(2)batteries is vital to achieve a stable battery ***,we adopt a commercial carbonate electrolyte to prove its excellent suitability in Li-O_(2)/CO_(2)*** generated superoxide can be captured by CO_(2)to form less aggressive intermediates,stabilizing the carbonate electrolyte without reactive oxygen species induced *** addition,this electrolyte permits the Li metal plating/stripping with a significantly improved reversibility,enabling the possibility of using ultra-thin Li *** from the good rechargeability of Li2CO3,less cathode passivation,and stabilized Li anode in carbonate electrolyte,the Li-O_(2)/CO_(2)battery demonstrates a long cycling lifetime of 167 cycles at 0.1 mA·cm^(-2)and 0.25 mAh·cm^(-2).This work paves a new avenue for optimizing carbonate-based electrolytes for Li-O_(2)and Li-O_(2)/CO_(2)batteries.

关键词： Energy conversion Li-O_(2)/CO_(2)batteries Carbonate electrolytes Carbon dioxide fixation Oxygen heterocycles

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TSPAN1 protein expression:A significant prognostic indicator for patients with colorectal adenocarcinoma

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World Journal of Gastroenterology 2009年第18期15卷 2270-2276页

作者： Li Chen Yuan-Yuan Zhu Xiao-Juan zhang Gui-Lan Wang xin-Yu Li Song He Jian-Bin zhang Jian-Wei Zhu Department of Pathological Anatomy Nantong University Nantong 226001Jiangsu Province China Biomics (Nantong) Co. Ltd Nantong226016 Jiangsu Province China Department of Pathology The Second Affiliated Hospital Nantong University Nantong 226001Jiangsu Province China Department of Pathology The Affiliated Tumor Hospital Nantong University Nantong226361 Jiangsu Province China Department of General Surgery Affiliated Hospital Nantong University Nantong 226001 Jiangsu Province China

AIM:To determine if TSPAN1 overexpression is associated with clinicopathological and prognostic factors in human colorectal ***:Total RNA was extracted in 20 human adenocarcinoma tissues for TSPAN1 mRNA assay by ***-eight specimens of human colorectal adenocarcinoma were surgically ***1 protein levels in cancer tissues were determined by immunohistochemistry using a polyclonal antibody against self-prepared *** correlation between TSPAN1 expression and the clinicopathological factors and the overall survival rate was analyzed by univariate and multivariate ***:TSPAN1 mRNA was detected in 90.0%(18/20) of cancerous *** light density of TSPAN1 mRNA expression levels was 0.89 ± 0.30 in adenocarcinoma by gel-image ***1 protein expression was detected in 78.41%(69/88) and weakly expressed in 40% normal colorectal *** were significant differences between colorectal adenocarcinoma and normal control epithelium(P < 0.05).TSPAN1 protein expression in colorectal cancerous tissue was significantly correlated with the histological grade,cell expression PCNA,lymph nodal metastasis and TNM staging of the *** with TSPAN1 protein overexpression had a significantly shorter survival period than that in patients with TSPAN1 protein negative or weak expression,respectively(P < 0.05).Furthermore,by multivariate analysis,TSPAN1 protein expression demonstrated an independent prognostic factor for human colorectal cancers(P < 0.05,relative risk 0.755;95% confidence interval 0.302-1.208).CONCLUSION:The expression of TSPAN1 gene is increased in colorectal carcinoma,suggesting that TSPAN1 might serve as an independent prognostic factor for the colorectal adenocarcinoma patients.

关键词： TSPAN1 Colorectal adenocarcinoma Semi-quantitative RT-PCR immunohistochemistry Prognosis

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An Assessment of CAMS-CSM in Simulating Land–Atmosphere Heat and Water Exchanges

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Journal of Meteorological Research 2018年第6期32卷 862-880页

作者： Guo zhang JiANDuo LI xinyao RONG Yufei xin Jian LI Haoming CHEN Jingzhi SU Lijuan HUA State Key Laboratory of Severe Weather Chinese Academy of Meteorological Sciences

The Chinese Academy of Meteorological Sciences(CAMS)has been devoted to developing a climate system model(CSM)to meet demand for climate simulation and prediction for the East Asian *** this study,we evaluated the performance of CAMS-CSM in regard to sensible heat flux(H),latent heat flux(LE),surface temperature,soil moisture,and snow depth,focusing on the Atmospheric Model Intercomparison Project experiment,with the aim of participating in the Coupled Model Intercomparison Project phase *** systematically assessed the simulation results achieved by CAMS-CSM for these variables against various reference products and ground observations,including the FLUXNET model tree ensembles H and LE data,Climate Prediction Center soil moisture data,snow depth climatology data,and Chinese ground observations of snow depth and winter surface *** compared these results with data from the ECMWF Interim reanalysis(ERA-Interim)and Global Land Data Assimilation System(GLDAS).Our results indicated that CAMS-CSM simulations were better than or comparable to ERA-Interim reanalysis for snow depth and winter surface temperature at regional scales,but slightly worse when simulating total column soil *** root-mean-square differences of H in CAMS-CSM were all greater than those from the ERA-Interim reanalysis,but less than or comparable to those from *** spatial correlations for H in CAMS-CSM were the lowest in nearly all regions,except for North ***-CSM LE produced the lowest bias in Siberia,North America,and South America,but with the lowest spatial correlation ***,there are still scopes for improving H and LE simulations in CAMS-CSM,particularly for LE.

关键词： Climate System Model of the Chinese Academy of Meteorological Sciences Atmospheric Model Intercomparison Project sensible heat flux latent heat flux

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Effect of Nitriding Process on Phase and Microstructure of Silicon Nitride Fibers Prepared by Direct Nitriding Method

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China's Refractories 2020年第4期29卷 40-45页

作者： zhang Qi YUAN Bo WANG Gang HAN Jianshen ZHAO xin State Key Laboratory of Advanced Refractories Sinosteel Luoyang Institute of Refractories Research Co.Ltd.Luoyang 471039China

In this paper,Si3N4 fiber materials were fabricated by nitridation of porous Si green bodies,which were prepared by the foaming method combined with *** effect of the nitriding process(the heating rate and the nitrogen flow rate)on the phase and the microstructure was *** results show that decreasing the heating rate and the nitrogen flow rate is both beneficial to the growth of Si3N4 nanofibers and promoting the disintegration of the pore wall structure of the porous green *** optimized nitrogen flow rate and the heating rate for the growth of silicon nitride fibers are 150 mL/min and 0.5℃/min,respectively.

关键词： nitriding process silicon nitride fibers microstructure

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Separating overlapping bat calls with a bi-directional long short-term memory network

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Integrative Zoology 2022年第5期17卷 741-751页

作者： Kangkang zhang Tong LIU Shengjing SONG xin ZHAO Shijun SUN Walter METZNER Jiang FENG Ying LIU Jilin Provincial Key Laboratory of Animal Resource Conservation and Utilization Northeast Normal UniversityChangchunChina School of Environment Northeast Normal UniversityChangchunChina Department of Integrative Biology and Physiology University of CaliforniaLos AngelesCaliforniaUSA Collage of Animal Science and Technology Jilin Agricultural UniversityChangchunChina Key Laboratory for Vegetation Ecology Ministry of EducationNortheast Normal UniversityChangchunChina

Acquiring clear acoustic signals is critical for the analysis of animal *** studies commonly face the problem of overlapping signals,which can impede the structural identification of vocal units,but there is currently no satisfactory *** study presents a bi-directional long short-term memory network to separate overlapping echolocation-communication calls of 6 different bat species and reconstruct *** separation quality was evaluated using 7 temporal-spectrum *** the echolocation pulses and syllables of communication calls in the overlapping signals were separated and parameter comparisons showed no significant difference and negligible deviation between the extracted and original *** analysis was conducted with separated echolocation calls from each bat species to provide an example of practical application of the separated and reconstructed *** result of clustering analysis showed high corrected rand index(82.79%),suggesting the reconstructed waveforms could be reliably used for species *** results demonstrate a convenient and automated approach for separating overlapping *** study extends the application of deep neural networks to separate overlapping animal sounds.

关键词： bat vocalizations bioacoustics deep neural networks overlapping calls sound separation

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Pt／介孔TiO_2-SiO_2的制备、表征及光催化性能研究

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无机材料学报 2006年第5期21卷 1268-1272页

作者：张峰张歆盐城工学院材料系盐城224003 汕头大学理学院化学系汕头515063

以正硅酸乙酯、钛酸异丙酯为前驱体,尿素为沉淀剂,改进的均匀沉淀法制备了TiO2- SiO2介孔复合材料,用XRD、FTIR、氮气吸附-脱附、XPS等对材料进行了表征．结果表明:Ti／Si摩尔比为0．5的介孔复合材料平均孔径为3．2nm,比表面积达到609m2... 详细信息

以正硅酸乙酯、钛酸异丙酯为前驱体,尿素为沉淀剂,改进的均匀沉淀法制备了TiO2- SiO2介孔复合材料,用XRD、FTIR、氮气吸附-脱附、XPS等对材料进行了表征．结果表明:Ti／Si摩尔比为0．5的介孔复合材料平均孔径为3．2nm,比表面积达到609m2／g．用光还原法在材料表面沉积适量的贵金属Pt,大大提高了材料的光催化活性．

关键词： Pt/TiO2-SiO2 均匀沉淀法介孔材料光催化

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Chronic Oral Administration of Magnesium-L-Threonate Prevents Oxaliplatin-Induced Memory and Emotional Deficits by Normalization of TNF-a/NF-j B Signaling in Rats

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Neuroscience Bulletin 2021年第1期37卷 55-69页

作者： xin Zhou Zhuo Huang Jun zhang Jia-Liang Chen Pei-Wen Yao Chun-Lin Mai Jie-Zhen Mai Hui zhang Xian-Guo Liu Department of Physiology and Pain Research Center Zhongshan School of MedicineSun Yat-sen UniversityGuangzhou 510080China Department of Anesthesiology Guangdong Second Provincial General HospitalGuangzhou 510317China Department of Urology Third Affiliated Hospital of Sun Yatsen UniversityGuangzhou 510630China Guangdong Province Key Laboratory of Brain Function and Disease Guangzhou 510080China

Antineoplastic drugs such as oxaliplatin(OXA)often induce memory and emotional *** present,the mechanisms underlying these side-effects are not fully understood,and no effective treatment is ***,we show that the short-term memory deficits and anxietylike and depression-like behaviors induced by intraperitoneal injections of OXA(4 mg/kg per day for 5 consecutive days) were accompanied by synaptic dysfunction and downregulation of the NR2 B subunit of N-methyl-Daspartate receptors in the hippocampus,which is critically involved in memory and *** OXA-induced behavioral and synaptic changes were prevented by chronic oral administration of magnesium-L-threonate(L-TAMS,604 mg/kg per day,from 2 days before until the end of experiments).We found that OXA injections significantly reduced the free Mg~(2+) in serum and cerebrospinal fluid(from ~0.8 mmol/L to ~ 0.6 mmol/L).The Mg~(2+) deficiency(0.6 mmol/L) upregulated tumor necrosis factor(TNF-α) and phospho-p65(p-p65),an active form of nuclear factor-kappaB(NF-κB),and downregulated the NR2 B subunit in cultured hippocampal *** L-TAMS prevented the OXA-induced upregulation of TNF-α and p-p65,as well as microglial activation in the hippocampus and the medial prefrontal ***,similar to oral L-TAMS,intracerebroventricular injection of PDTC,an NF-κB inhibitor,also prevented the OXAinduced memory/emotional deficits and the changes in TNF-α,p-p65,and *** together,the activation of TNF-α/NF-κB signaling resulting from reduced brain Mg~(2+) is responsible for the memory/emotional deficits induced by *** oral L-TAMS may be a novel approach to treating chemotherapy-induced memory/emotional deficits.

关键词： Magnesium-L-threonate Oxaliplatin Tumor necrosis factor-alpha Nuclear factor-kappaB Cognitive deficit Hippocampus Medial prefrontal cortex

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政府和钢铁企业间行为策略的演化博弈分析——有机朗肯循环技术推广

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东北大学学报（自然科学版） 2022年第11期43卷 1653-1661页

作者：张朝张欣欣北京科技大学能源与环境学院北京100083 北京科技大学冶金工业节能减排北京市重点实验室北京100083

为了探索合理促进钢铁企业采用有机朗肯循环(organic Rankine cycle, ORC)技术回收低温余热,建立了有关我国政府机构与钢铁企业之间的演化博弈模型,分析了演化稳定性以及关键参数对演化轨迹的影响.结果表明:实施成本和环境污染税费对OR... 详细信息

为了探索合理促进钢铁企业采用有机朗肯循环(organic Rankine cycle, ORC)技术回收低温余热,建立了有关我国政府机构与钢铁企业之间的演化博弈模型,分析了演化稳定性以及关键参数对演化轨迹的影响.结果表明:实施成本和环境污染税费对ORC技术的推广是非常重要的.在政治和社会效益最大化的基础上,较高的能耗和环境污染税费更加促使政府对ORC技术推广.初始选择概率值接近或者大于临界值,对双方推动ORC技术都有利.提高监管支出以及政治和社会效益,使政府更具有积极性;增加环境污染税费、ORC发电效益和减少环境污染带来的效益,使企业更具有积极性;提高运营亏损补贴和技术补助以及技术部署成本,对政府和企业都是消极的.

关键词： ORC技术演化博弈论政府机构钢铁企业

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