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| 1 | Relationship between differ- ential gene expression pat- terns in functional leaves of maize (Zea mays L.) at milk filling stage and heterosis using cDNA-AFLP显示文摘To understand the molecular mechanism of maize heterosis, differential gene expression patterns in the functional leaves of 35 maize hybrids relative to their parents involving 10 elite inbreds at milk filling stage were analyzed by using cDNA-AFLP. The correlation analyses of various differential expression patterns with the performance and heterosis of main maize agronomic traits were evaluated. The main results were as follows: For uniparental specific expression, significant positive correlations were detected with the performance of seed weight per ear and 100-seed weight at 0.01 and 0.05 probability levels respectively. For biparental specific expression, significant negative correla-tions were detected with the performance of ear diameter and seed weight per ear at 0.01 probability level. For uni-parental specific expression, significant positive correlations were detected with the heterosis of ear diameter and seed weight per ear at 0.01 and 0.05 probability levels respectively. For biparental specific expression, significant negative cor-relation was detected with the heterosis of ear diameter at 0.05 probability level. However, for F1-specific expression, for fragments detected only in one parent and F1, and for fragments detected only in two parents or only in F1, no sig-nificant correlation was detected with the performance or heterosis of all agronomic traits surveyed. | TIAN Zengyuan & DAI Jingrui National Maize Improvement Center of China, China Agricultural Uni-versity, Beijing 100094, China Correspondence should be addressed to Tian Zengyuan (e-mail: tian-zengyuan@yahoo.com.cn) | 2003 | Chinese Science Bulletin2003，48，1： | 10 |
| 2 | Enhanced corrosion resistance,antibacterial activity and biocompatibility of gentamicin-montmorillonite coating on Mg alloy-in vitro and in vivo studies显示文摘Implant-associate infection(IAI)is a major cause of failure of bone implant materials,and one of the significant challenges in clinical managements.A synergistic coating strategy combining montmorillonite(MMT)sustained release,adsorption of bacteria and gentamicin(GS)bactericidal is proposed herein to tackle infection issues.Surface morphology,microstructure and chemical composition of the samples were investigated using SEM,XRD,FT-IR and XPS.Electrochemical experiments and immersion experiments reveal that corrosion resistance of Mg samples with GS/MMT coatings was higher than that of bare Mg alloy substrate in DMEM solution.In vitro studies demonstrated that the GS/MMT coating had a significant inhibitory effect on Escherichia coli(E.coli)and Staphylococcus aureus(S.aureus).The viability of MC3T3-E1 cells was 92.7%after a co-culturing for 72 h.After a subcutaneous transplantation of 90days,the survival rate was 100%for GS/MMT-coated Mg alloy specimens with no infection at the implantation sites and no toxic damage to liver,kidney and local muscles pathological sections.This study provides a novel method for the preparation of sustained-release antimicrobial coatings on biodegradable Mg alloys as promising candidates for orthopedic implant materials. | Lijun Fan Wenxin Sun Yuhong Zou Qian-qian Xu Rong-Chang Zeng Jingrui Tian | 2022 | Journal of Materials Science & Technology2022，，16： | 1 |
| 3 | Theoretical analysis and experimental research on transcritical CO2 two stage compression cycle with two gas coolers(TSCC+TG) and the cycle with intercooler(TSCC+IC)显示文摘 | HONGLI WANG YITAI MA JINGRUI TIAN | | 0，，8： | 1 |
| 4 | Theoretical analysis and experimental research on transcritical CO2 two stage compression cycle with two gas coolers (TSCC + TG) and the cycle with intercooler (TSCC + IC ) 显示文摘 | Wang Hongli Ma Yitai Tian Jingrui | 2011 | Energy conversion and Management2011，52，89： | 1 |
| 5 | Establishment and verification of prediction models for evaluating the physical and chemical properties of soilless substrates显示文摘In soilless culture,a suitable mixed substrate that provides a balanced and stable rhizosphere environment is vital for promoting plant growth.The present study was undertaken to establish seven prediction models of physical and chemical properties,including bulk density(DB),total porosity(TP),water-holding porosity(WHP),air porosity(AP),WHP/AP,electrical conductivity(EC)and cation exchange capacity(CEC)of mixed substrate based on regression equations of measured values from 76 substrate combinations.These seven models were verified using the measured values of 12 mixed substrates,and the average relative prediction errors(REs)were all less than 10%.A comprehensive property prediction model was established by weighted summation of the seven models of physical and chemical properties.According to the set values of DB,TP,WHP,AP,WHP/AP,EC and CEC,the comprehensive property model predicted the six mixture proportions of mixed-substrate,as verified using the measured values.This study is the first to establish prediction models for the physical and chemical properties of mixed substrates.The comprehensive property model could be used to evaluate the physical and chemical properties of commercial mixed substrates,and to provide the optimal mixture substrate formulations according to the setting property value of production requirement. | Binbin Gong Ning Wang Tiejun Zhang Shao Li Xiaolei Wu Jing Tian Jingrui Li Guiyun Lyu Hongbo Gao | 2021 | International Journal of Agricultural and Biological Engineering2021，14，2： | 0 |
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