2010 4th International Conference on Bioinformatics and Biomedical Engineering最新文献_第5页

Research on the Symptoms and the Critical Value of Nickel Toxicity of Maize 玉米镍中毒症状及临界值的研究

2010 4th International Conference on Bioinformatics and Biomedical Engineering Pub Date : 2010-06-18 DOI: 10.1109/ICBBE.2010.5517400

Minyi Zhou, Jin-hua Liu, Ya-qing Wang, Jingming Yang, Xiao-bin Yu

{"title":"Research on the Symptoms and the Critical Value of Nickel Toxicity of Maize","authors":"Minyi Zhou, Jin-hua Liu, Ya-qing Wang, Jingming Yang, Xiao-bin Yu","doi":"10.1109/ICBBE.2010.5517400","DOIUrl":"https://doi.org/10.1109/ICBBE.2010.5517400","url":null,"abstract":"Nickel (Ni) plays an important role in the growth of plants, but it is also a kind of heavy metal which can easily enrich in soil and exert toxic effect on plants. To evaluate the Ni stress on the maize growth, a pot experiment was conducted by black soils sampled from the field in the middle of Jilin province. And Ni was equilibrated in the soils to graded levels from 0 to 800mg kg−1 soil. The main results were as follows: The concentration of Ni in maize had a negative correlation with the plant dry weight. The symptom of Ni toxicity was as follows: maize root was short and thin, leaf curled with barred vain and fade blade tip, and it was brown and rotten at the connection of the petiole and roots. In this study, the fitting equation of Y=0.3071+0.0012X+-0.0001CX2 described the extremely significant relationship between the amount of effective Ni in soil (when it was below 30mg/kg) and the dry matter weight of maize. The amount of effective Ni in soil (DTPA extracted) which could provide maize with the best growing state was 6.00mg/kg, the toxicity critical value was 11.48mg/kg, the range of Ni luxury absorption was 6.00 -11.48mg/kg. 11.48- 32.77mg/kg caused maize mild toxicity; 32.77-67.38mg/kg caused moderate toxicity and over 67.38mg/kg leaded to serious toxicity. When maize took place mild toxicity, the content of Ni in maize was 33.40-66.40mg/kg. Moderate toxicity was 66.40-111.40mg/kg. Serious toxicity was over 111.40mg/kg. The equations of Y=-0.0013X+0.3126, Y=-0.0010X+0.3364 could be used to express the relationship between effective Ni in soil, Ni in maize and the dry matter weight of maize when toxicity happened. The highest Ni fixed rate was 23.98% when the soil received 25mg/kg Ni.","PeriodicalId":6396,"journal":{"name":"2010 4th International Conference on Bioinformatics and Biomedical Engineering","volume":"27 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2010-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72680768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A High Quality Reflectance Model in Medical Image Visualization 医学图像可视化中的高质量反射模型

2010 4th International Conference on Bioinformatics and Biomedical Engineering Pub Date : 2010-06-18 DOI: 10.1109/ICBBE.2010.5515499

Yu-yue Zou, Jun Zhang, Xiaoming Han, Yan Kang

引用次数: 1

Relationship and Enrichment of Heavy Metals in Soil of Sewage Irrigation Area in Guangdong Province, China 广东省污水灌区土壤重金属含量与富集关系

2010 4th International Conference on Bioinformatics and Biomedical Engineering Pub Date : 2010-06-18 DOI: 10.1109/ICBBE.2010.5517410

Guanxing Huang, Jichao Sun, Ji-hong Jing, Jingtao Liu, Yu-xi Zhang, Ying Zhang, Xiaoping Xiang, Haiwei Cui

{"title":"Relationship and Enrichment of Heavy Metals in Soil of Sewage Irrigation Area in Guangdong Province, China","authors":"Guanxing Huang, Jichao Sun, Ji-hong Jing, Jingtao Liu, Yu-xi Zhang, Ying Zhang, Xiaoping Xiang, Haiwei Cui","doi":"10.1109/ICBBE.2010.5517410","DOIUrl":"https://doi.org/10.1109/ICBBE.2010.5517410","url":null,"abstract":"The research reveals the relationship and enrichment of heavy metals in soil of sewage irrigation area in Guangdong province, southern China. Samples were collected from topsoil (0-10cm) and subsoil (30-40cm), and the total concentrations of heavy metals were extracted by HNO3-HF-HClO4. It is concluded that Cu, Zn, Cd, and Pb may be homologous or combined pollution, and Mn and Cr may be also homologous in soil. According to the result of cluster analysis, it is shown that Se and As may have the similar environmental geochemical behavior in topsoil, because the existing forms of them in environment are mainly acid anions. We can conclude that a significant degree of metal pollution exists in soil of sewage irrigation area, particularly for Cd, Cu, Pb and Zn. The degrees of contamination of heavy metals in topsoil (CF of Cd 8.1, Cu 7.0, Zn 5.9, Pb 3.6, Ni 2.1, As 1.8, Cr 1.6, Se 1.5) were higher than that in subsoil (CF of Cd 6.0, Cu 3.4, Zn 3.7, Pb 2.7, Ni 2.0, As 1.6, Cr 1.5, Se 1.4). EF values show deficiency enrichment with Ni, Se, Cr and As, low enrichment with Cu, Zn and Pb, and moderate enrichment with Cd in topsoil in study area, while deficiency enrichment with Ni, Se, Cr, Pb and As, and low enrichment with Cu, Zn and Cd in subsoil in study area.It should be recognized that the hazards posed by food production in sewage irrigation areas may become a common hazard for human.","PeriodicalId":6396,"journal":{"name":"2010 4th International Conference on Bioinformatics and Biomedical Engineering","volume":"34 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2010-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74968694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Effects of Selective Withdrawal on Temperature of Water Released of Glen Canyon Dam 选择性回水对格伦峡谷大坝放水温度的影响

2010 4th International Conference on Bioinformatics and Biomedical Engineering Pub Date : 2010-06-18 DOI: 10.1109/ICBBE.2010.5517675

Shaoxiong Zhang, Xueping Gao

引用次数: 8

Based on the "Three Chart" Method of Groundwater Vulnerability Assessment 基于“三图法”的地下水脆弱性评价

2010 4th International Conference on Bioinformatics and Biomedical Engineering Pub Date : 2010-06-18 DOI: 10.1109/ICBBE.2010.5518235

Hua Lv, Yanqiu Wang

引用次数: 0

Screening and 16S rRNA Analysis of the Bacteria of Producing Chitin Deacetylase 产几丁质脱乙酰酶细菌的筛选及16S rRNA分析

2010 4th International Conference on Bioinformatics and Biomedical Engineering Pub Date : 2010-06-18 DOI: 10.1109/ICBBE.2010.5517350

G. Zhou, Y. He, Huai-yun Zhang

{"title":"Screening and 16S rRNA Analysis of the Bacteria of Producing Chitin Deacetylase","authors":"G. Zhou, Y. He, Huai-yun Zhang","doi":"10.1109/ICBBE.2010.5517350","DOIUrl":"https://doi.org/10.1109/ICBBE.2010.5517350","url":null,"abstract":"Chitin deacetylase (CDA) is an enzyme that catalyzes the hydrolysis of acetamine groups of N-acetyl-D-glucosamine in chitin. Chitin deacetylase converting chitin to chitosan in fungal cell walls. A total of 208 strains was isolated from soil samples in the riverbank of Xiangjiang River and an island of Zhanjiang. 12 CDA producing strains was founded by color reaction that including three fungus, two bacterias and four actinomycetes. The highest CDA producing strain Z7 had been screened by enzyme activity assays. 16S gene of the strain was amplified and sequenced. The 16S gene sequence data were deposited in the GenBank nucleotide sequence database. The 16S gene sequences were aligned with the multiple - sequence alignment software Clustal S. Similarity values were calculated using the software MegAlign. Phylogenetic and molecular evolutionary analyses were conducted using MEGA by the neighbor - joining algorithms. Aphylogenetic tree was constructed by comparing with the published 16S gene regions of the related bacteria species. In the phylogenetic tree the overall similarity value between strain Z7 and Bacillus amyloliquefaciens are 99%. The wild strain was classfy as Bacillus amyloliquefaciens.","PeriodicalId":6396,"journal":{"name":"2010 4th International Conference on Bioinformatics and Biomedical Engineering","volume":"45 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2010-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77603024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Guided Bone Regeneration to Prevent Wisdom Tooth Extraction Complications in Clinical Research 引导骨再生预防拔智齿并发症的临床研究

2010 4th International Conference on Bioinformatics and Biomedical Engineering Pub Date : 2010-06-18 DOI: 10.1109/ICBBE.2010.5515640

Hong-ming Li, Xue-qin Wan, Q. Lan, Lu Han, Bo Kang, Wei Wei, Gong-yuan Lei, Jie-ying Huang

引用次数: 1

Volatile Organic Compounds Concentrations in New Apartment Buildings in Harbin, China 中国哈尔滨市新建公寓楼挥发性有机化合物浓度

2010 4th International Conference on Bioinformatics and Biomedical Engineering Pub Date : 2010-06-18 DOI: 10.1109/ICBBE.2010.5515159

Yu Liu, Jun Shen, X. Zhu

引用次数: 2

Optimizing of Silver-Catalyzed Bioleaching of Low-Grade Copper Ores from Yongping, China 永平某低品位铜矿石银催化生物浸出工艺优化

2010 4th International Conference on Bioinformatics and Biomedical Engineering Pub Date : 2010-06-18 DOI: 10.1109/ICBBE.2010.5516412

Muqing Qiu, Chengcai Huang

引用次数: 0

ECG Signal Processing Using Dyadic Wavelet for Mental Stress Assessment 基于二进小波的心电信号处理及其心理压力评估

2010 4th International Conference on Bioinformatics and Biomedical Engineering Pub Date : 2010-06-18 DOI: 10.1109/ICBBE.2010.5516360

G. Ranganathan, V. Bindhu, R. Rangarajan

引用次数: 11