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| 1 | Toxicity of cadmium and its competition with mineral nutrients for uptake by plants:A review显示文摘Cadmium(Cd)is a toxic heavy metal occurring in the environment naturally and is also generated through various anthropogenic sources and acts as a pollutant.Human health is affected by Cd pollution in farmland soils because food is the main source of Cd intake in the non-smoking population.For crops,Cd toxicity may result from a disturbance in uptake and translocation of mineral nutrients and disturbance in plant metabolism,inhibiting plant growth and development.However,plants have Cd tolerance mechanisms,including restricted Cd uptake,decreased Cd root-to-shoot translocation,enhanced antioxidant enzyme activities,and increased production of phytochelatins.Furthermore,optimal supply of mineral nutrients is one of the strategies to alleviate the damaging effects of Cd on plants and to avoid its entry into the food chain.The emerging molecular knowledge contributes to understanding Cd uptake,translocation,and remobilization in plants.In this review,Cd toxicity and tolerance mechanisms,agricultural practices to minimize Cd accumulation,Cd competition with essential elements(calcium,copper,iron,zinc,and manganese),and genes associated with Cd uptake are discussed in detail,especially regarding how these mineral nutrients and genes play a role in decreasing Cd uptake and accumulation in crop plants. | Shiyu QIN Hongen LIU Zhaojun NIE Zed RENGEL Wei GAO Chang LI Peng ZHAO | 2020 | Pedosphere2020，30，2： | 20 |
| 2 | Influence of ammonium and nitrate supply on growth, nitrate reductase activity and N-use efficiency in a natural hybrid pine and its parents显示文摘Selection of tree species with a high capacity to assimilate N and efficiently utilize N resources would facilitate the success of initial tree seedling establishment in infertile soils.The preference for N forms was tested using three pine species(Pinus densata,Pinus tabuliformis and Pinus yunnanensis).Pinus densata is a natural diploid hybrid between P.tabuliformis and P.yunnanensis.Methods Seedlings of three pine species were supplied with nitrate-N,ammonium-N(at two different pH regimes)or combined ammonium and nitrate as a nitrogen source in perlite culture in a controlled environment.Important Findings Seedlings of P.densata had higher total biomass and net photosynthesis when supplied with nitrate-N and ammonium nitrate than with ammonium-N.In parental species,total biomass and net photosynthesis for P.yunnanensis seedlings was higher in ammonium-N than in nitrate-N,whereas the other parental species P.tabuliformis had the highest total biomass among species for all treatments except ammonium with CaCO_(3).Most morphological traits in P.densata seedlings were intermediate between its two parental species.However,N-use efficiency and photosynthetic N-use efficiency of P.densata significantly exceeded both parents when supplied with nitrate-N and ammonium nitrate.The results suggested that the diploid hybrid tree species P.densata has a preference for nitrate and is not well adapted to ammonium-N as a sole nitrogen source regardless of the growth medium pH.Based on changes in environmental conditions,such as predicted future temperature increases in high altitude areas associated with climate change,P.densata is likely to be increasingly competitive and have wide adaptation in high altitude regions. | Buqing Yao Jing Cao Changming Zhao Zed Rengel | 2011 | Journal of Plant Ecology2011，4，4： | 15 |
| 3 | ^(15)N isotope fractionation in an aquatic food chain:Bellamya aeruginosa(Reeve) as an algal control agent显示文摘15N isotope tracer techniques and ecological modeling were adopted to investigate the fractionation of nitrogen,its uptake and transformation in algae and snail(Bellamya aeruginosa Reeve).Different algal species were found to differ in their uptake of nitrogen isotopes.Microcystis aeruginisa Ktz.demonstrated the greatest 15N accumulation capacity,with the natural variation in isotopic ratio(δ 15N) and the isotope fractionation factor(ε,‰) being the highest among the species investigated.The transformation and utilization of 15N by snails differed depending on the specific algae consumed(highest for Chlorella pyrenoidosa Chick.,lowest for M.aeruginisa).When snails was seeded in the experimental pond,the algae population structure changed significantly,and total algal biomass as well as the concentration of all nitrogen species decreased,causing an increase in water transparency.A model,incorporating several chemical and biological parameters,was developed to predict algal biomass in an aquatic system when snails was present.The data collected during this investigation indicated that the gastropods such as snails could significantly impact biological community and water quality of small water bodies,suggesting a role for biological control of noxious algal blooms associated with eutrophication. | Shiqun Han Shaohua Yan Kaining Chen Zhenhua Zhang Rengel Zed Jianqiu Zhang Wei Song Haiqin Liu | 2010 | Journal of Environmental Sciences2010，22，2： | 14 |
| 4 | 磷和外源生长素对白羽扇豆(Lupinus albus L.)根形态和生理特性的影响显示文摘白羽扇豆(Lupinus albus L.)对磷和生长素表现出高度的根系形态和生理可塑性反应,然而磷和生长素如何调节根形态和生理特性以及它们对根形态和生理的交互效应尚不清楚.本研究通过水培实验旨在评价磷(0或250μmol/L)和生长素(10-8mol/LNAA)对白羽扇豆根特性的影响及其交互效应.结果表明,缺少磷和生长素施用均明显改变了白羽扇豆的根形态(主根长度减少、一级侧根数目增加和排根大量形成)和生理特性(质子释放、柠檬酸分泌和酸性磷酸酶活性增加).外源生长素的施用增加了缺磷白羽扇豆根系的响应度和敏感性.磷和生长素对白羽扇豆根系形态和生理具有明显的交互作用.主成分分析表明,磷解释了根特性64.8%的信息,而生长素解释了21.3%的信息,表明磷供应对白羽扇豆根特性的影响比外源生长素施用更为重要.白羽扇豆能够通过协调根系形态和生理对外部刺激(如缺磷和施用生长素)作出应答,以及优化根形态和生理之间的关系从而最大化获取磷素资源. | 唐宏亮 申建波 张福锁 Zed Rengel | 2013 | 中国科学:生命科学2013，43，3： | 12 |
| 5 | Emergency department procedural sedation for primary electrical cardioversion — a comparison with procedural sedations for other reasons显示文摘BACKGROUND: Atrial fibrillation(AF) is the most common arrhythmia treated in the emergency department(ED), with primary electrical cardioversion(PEC) the preferred method of rhythm control. Anecdotally, patients undergoing ED procedural sedation(EDPS) for PEC differ from those requiring EDPS for other procedures: they are at higher risk of adverse events, and require fewer drugs and lower doses. We attempt to verify this using an EDPS registry at a Canadian, tertiary care teaching hospital.METHODS: This is a retrospective review of patients that underwent EDPS for the period of June 2006 to September 2014. We compared demographics, medication use and intra-procedural adverse events between those receiving EDPS for PEC for AF compared to that for other indications. We report the asssociation between AEs and predictors using logistic regression.RESULTS: A total of 4 867 patients were included, 714 for PEC for AF and 4 153 for other indications. PEC patients were more likely male(58.5% vs. 47.1%), older(59.5 years vs. 48.1 years), and less likely to be ASA I(46.6% vs. 69.0%). PEC patients received smaller doses of propofol and less likely to receive adjuvant analgesic therapy(11.5% vs. 78.2%). PEC patients were more likely to experience hypotension(27.6% vs. 16.5%) but respiratory AEs(apnea, hypoxia and airway intervention) were not different.CONCLUSION: EDPS for PEC differs from that conducted for other purposes: patients tend to be less healthy, receive smaller doses of medication and more likely to suffer hypotension without an increase in respiratory AEs. These factors should be considered when performing EDPS. | Michael Butler Patrick Froese Peter Zed George Kovacs Robert Mac Kinley Kirk Magee Mary-Lynn Watson Samuel G.Campbell | 2017 | World Journal of Emergency Medicine2017，8，3： | 6 |
| 6 | In-situ nitrogen removal from the eutrophic water by microbial-plant integrated system显示文摘Objective: This study was to assess the influence of interaction of combination of immobilized nitrogen cycling bacteria (INCB) with aquatic macrophytes on nitrogen removal from the eutrophic waterbody, and to get insight into different mechanisms involved in nitrogen removal. Methods: The aquatic macrophytes used include Eichhornia crassipes (sum-mer-autumn floating macrophyte), Elodea nuttallii (winter-growing submerged macrophyte), and nitrogen cycling bacteria in-cluding ammonifying, nitrosating, nitrifying and denitrifying bacteria isolated from Taihu Lake. The immobilization carriers materials were made from hydrophilic monomers 2-hydroxyethyl acrylate (HEA) and hydrophobic 2-hydroxyethyl methylacrylate (HEMA). Two experiments were conducted to evaluate the roles of macrophytes combined with INCB on nitrogen removal from eutrophic water during different seasons. Results: Eichhornia crassipes and Elodea nuttallii had different potentials in purification of eutrophic water. Floating macrophyte+bacteria (INCB) performed best in improving water quality (during the first experiment) and decreased total nitrogen (TN) by 70.2%, nitrite and ammonium by 92.2% and 50.9%, respectively, during the experimental period, when water transparency increased from 0.5 m to 1.8 m. When INCB was inoculated into the floating macrophyte system, the populations of nitrosating, nitrifying, and denitrifying bacteria increased by 1 to 2 orders of magnitude compared to the un-inoculated treatments, but ammonifying bacteria showed no obvious difference between different treatments. Lower values of chlorophyll a, CODMn, and pH were found in the microbial-plant integrated system, as compared to the control. Highest reduction in N was noted during the treatment with submerged macrophyte+INCB, being 26.1% for TN, 85.2% for nitrite, and 85.2% for ammonium at the end of 2nd experiment. And in the treatment, the populations of ammonifying, nitrosating, nitrifying, and de-nitrifying bacteria increased by 1 to 3 orders of magnitude, as compared to the un-inoculated treatments. Similar to the first ex-periment, higher water transparency and lower values of chlorophyll a, CODMn and pH were observed in the plant+ INCB inte-grated system, as compared to other treatments. These results indicated that plant-microbe interaction showed beneficial effects on N removal from the eutrophic waterbody. | CHANG Hui-qing YANG Xiao-e FANG Yun-ying PU Pei-min LI Zheng-kui RENGEL Zed | 2006 | Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2006，7，7： | 6 |
| 7 | Interactive effects of phosphorus deficiency and exogenous auxin on root morphological and physiological traits in white lupin (Lupinus albus L.)显示文摘White lupin (Lupinus albus) exhibits strong root morphological and physiological responses to phosphorus (P) deficiency and auxin treatments, but the interactive effects of P and auxin in regulating root morphological and physiological traits are not fully understood. This study aimed to assess white lupin root traits as influenced by P (0 or 250 μmol L-1 ) and auxin (10-8 μmol L-1 NAA) in nutrient solution. Both P deficiency and auxin treatments significantly altered root morphological traits, as evidenced by reduced taproot length, increased number and density of first-order lateral roots, and enhanced cluster-root formation. Changes in root physiological traits were also observed, i.e., increased proton, citrate, and acid phosphatase exudation. Exogenous auxin enhanced root responses and sensitivity to P deficiency. A significant interplay exists between P and auxin in the regulation of root morphological and physiological traits. Principal component analysis showed that P availability explained 64.8% and auxin addition 21.3% of the total variation in root trait parameters, indicating that P availability is much more important than auxin in modifying root responses of white lupin. This suggests that white lupin can coordinate root morphological and physiological responses to enhance acquisition of P resources, with an optimal trade-off between root morphological and physiological traits regulated by external stimuli such as P availability and auxin. | TANG HongLiang SHEN JianBo ZHANG FuSuo RENGEL Zed | 2013 | Science China(Life Sciences)2013，56，4： | 5 |
| 8 | A model formative assessment strategy to promote student-centered self-regulated learning in higher education显示文摘 | Jayakumar Bose Zed Rengel | 2009 | 美中教育评论2009，6，12： | 2 |
| 9 | Kinetics of ammonium, nitrate and phosphorus uptake by Canna indica and Schoenoplectus validus显示文摘 | Zhenhua Zhang Zed Rengel Kathy Meney | 2009 | Aquatic Botany2009，，2： | 1 |
| 10 | Rapid imipenem/cilastatin desensitization for multidrug-resistant aeinetobaeter pneumonia显示文摘 | Zed PJ Dhingra VK | 2003 | Ann Pharmacother2003，37，4： | 1 |
| 11 | Etomidate for procedural sedation in the emergency department显示文摘 | Falk J Zed PJ | | 0，，7： | 1 |
| 12 | Nanocrystalline Eu^3+ Doped M3 Al2O6 (M: Ba, Ca and Sr) Red Phos phors Prepared by Sucrose-PVA-Metal Ion Complex Route显示文摘 | Alp Manavbasi Palkin Zed Jeffrey C LaCombe | 2007 | Mater Res Soc Syrup Proc2007，1023，： | 1 |
| 13 | 5-HT3 receptor antagonists vs traditional agents for the prophylaxi of postoperative nauseas and vomiting显示文摘 | Loewen PS Marra CA Zed PJ | 2000 | N Eng J Med2000，47，： | 1 |
| 14 | Does ketamine have a role in managing severe exacerbation of asthma in adults?显示文摘 | Lau TT Zed PJ | 2001 | Pharmacotherapy2001，21，： | 1 |
| 15 | Cadmium accumulation by muskmelon under salt stress in contaminated organic soil显示文摘 | Ondrasek Gabrijel Romic Davor Rengel Zed Romic Marija Zovko Monika | 2008 | Science of the Total Environment2008，，7： | 1 |
| 16 | Soil physical properties and their relations to organic carbon pools as affected by land use in an alpine pastureland显示文摘 | Li Xiaogang Li Fengmin Rengel Zed | 2007 | Geoderma2007，139，： | 1 |
| 17 | Phosphorus uptake and rhizosphere properties of intercropped and monocropped maize, faba bean, and white lupin in acidic soil显示文摘 | Haigang Li Jianbo Shen Fusuo Zhang Petra Marschner Greg Cawthray Zed Rengel | 2010 | Biology and Fertility of Soils2010，，2： | 1 |
| 18 | 5-HT3 receptor antagonists vs traditional agents for the prophylaxis of postoperative nausea and vomiting 显示文摘 | Loewen PS Marra CA Zed PJ | 2000 | Can J Anaesth2000，47，10： | 1 |
| 19 | 5- HT3 receptor antagonists vs tra- ditional agents for the prophylaxis of postoperative nausea and vom- iting显示文摘 | Loewen PS Marra CA Zed PJ | 2000 | Can J Anaesth2000，47，10： | 1 |
| 20 | Rapid imipenem/cilastatin desensitization for multidrug-resistanct Acinetobacter pneumonia显示文摘 | Gorman S K Zed P J Dhingra V K | 2003 | Ann Pharmacother2003，37，4： | 1 |
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