2010 4th International Conference on Bioinformatics and Biomedical Engineering最新文献_第3页

Ozone-Induced Changes in Antioxidant Systems of Ginkgo Biloba in Relation to the Developmental Stage of the Leaves 臭氧诱导银杏叶片抗氧化系统与发育阶段的关系

2010 4th International Conference on Bioinformatics and Biomedical Engineering Pub Date : 2010-06-18 DOI: 10.1109/ICBBE.2010.5516255

Kun Yan, Xingyuan He, Wei Chen, Tao Lu

{"title":"Ozone-Induced Changes in Antioxidant Systems of Ginkgo Biloba in Relation to the Developmental Stage of the Leaves","authors":"Kun Yan, Xingyuan He, Wei Chen, Tao Lu","doi":"10.1109/ICBBE.2010.5516255","DOIUrl":"https://doi.org/10.1109/ICBBE.2010.5516255","url":null,"abstract":"Ozone (O3) pollution has adverse effects on the trees grown in urban area. Using open top chambers, responses of antioxidant systems were detected in Ginkgo biloba leaves at different developmental stages after a long term O3 exposure (O3 concentration ≈ 80 nmol mol-1). As leaf size is closely related to the developmental stage, leaves with different sizes were chosen to indicate the various developmental stages. The results suggested that activities of superoxide dismutase (SOD), ascorbate peroxidase (APX) and catalase (CAT) were induced to a higher level in younger leaves with 50% expansion size under elevated O3 exposure, whereas O3-induced decrease in APX and SOD activities was found in the 80% and 100% expanded ones. Dehydroascorbate reductase (DHAR) activity and ascorbate (Asc) content were not affected by high O3 in 50% expanded leaves, but the O3-induced decrease in them occurred in the 80% and 100% expanded ones. Malondialdehyde (MDA) and hydrogen peroxide (H2O2) contents increased significantly in the 80% and 100% expanded leaves at elevated O3. However, O3-induced increase in MDA and H2O2 contents did not reach the significant level in the 50% expanded leaves, indicating the higher resistance to O3 in the younger leaves. The positive responses of antioxidant systems could be responsible for the higher resistance to O3 in the younger leaves.","PeriodicalId":6396,"journal":{"name":"2010 4th International Conference on Bioinformatics and Biomedical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75643256","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

Identification of a Novel S-RNase Gene and S-Genotypes of Four Pear (Pyrus pyrifolia) Cultivars 4个梨品种S-RNase新基因及其s基因型的鉴定

2010 4th International Conference on Bioinformatics and Biomedical Engineering Pub Date : 2010-06-18 DOI: 10.1109/ICBBE.2010.5516677

Lin Zhang, Jiao Hu, X. Tan, Hongxu Long, D. Yuan, Xiu-gen Li

{"title":"Identification of a Novel S-RNase Gene and S-Genotypes of Four Pear (Pyrus pyrifolia) Cultivars","authors":"Lin Zhang, Jiao Hu, X. Tan, Hongxu Long, D. Yuan, Xiu-gen Li","doi":"10.1109/ICBBE.2010.5516677","DOIUrl":"https://doi.org/10.1109/ICBBE.2010.5516677","url":null,"abstract":"Gametophytic self-incompatibility (GSI) is a genetically controlled mechanism to prevent inbreeding and promote out-crossing. Pyrus pyrifolia is a commercially important fruit tree that exhibits GSI. It is necessary to identify S-genotypes of cultivars for determination of cross-compatible combination prior to performing pear plantation and breeding programs. In this study, an important local cultivar 'Huobali' extensively used as parent in pear breeding programs, and its three progenies 'Mantianhong', 'Hongsucui' and 'Meirensu' were used for S-genotyping analysis by PCR-based molecular method. Agarose gel electrophoresis showed that two fragments were produced in each of the three progenies, while three in the 'Huobali'. After restriction digestion and sequencing analysis, the S-alleles in the four cultivars were determined. The allele of 345 bp from 'Huobali' was determined as a novel S-RNase allele that was tentatively denominated as S44-RNase. RT-PCR revealed that the S44-RNase was expressed specifically in the styles, which is consistent with the expression pattern of S-RNases. Comparison of genomic and cDNA sequences revealed an intron of 148 bp for the S44-RNase. At the amino acid level, it shared 65% to 93% similarity with other Maloideae S-RNases. This study will be helpful in pear production and breeding programs.","PeriodicalId":6396,"journal":{"name":"2010 4th International Conference on Bioinformatics and Biomedical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74633719","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

Chemical Composition and Possible Sources of Elements in Dustfall in Pingdingshan City 平顶山市降尘中元素的化学组成及可能来源

2010 4th International Conference on Bioinformatics and Biomedical Engineering Pub Date : 2010-06-18 DOI: 10.1109/ICBBE.2010.5516593

Zhangxian Liu, Yan Zhang, Lianshan Li, R. Guo, K. Huang

{"title":"Chemical Composition and Possible Sources of Elements in Dustfall in Pingdingshan City","authors":"Zhangxian Liu, Yan Zhang, Lianshan Li, R. Guo, K. Huang","doi":"10.1109/ICBBE.2010.5516593","DOIUrl":"https://doi.org/10.1109/ICBBE.2010.5516593","url":null,"abstract":"Dustfall samples were synchronously collected at five typical urban functional areas (industrial area, traffic area, residential area, cultural and educational area, residential and commercial mixed area) of Pingdingshan City in Henan Province from May 2008 to April 2009. The principal component elements in dustfall samples were analyzed for concentrations, spatial distribution, sources and contributions to air pollution. The results indicated that Cd, Pb, As, Zn, S and Cu were the dominant polluted elements in the dustfall and their enrichment factors were 44.1, 15.0, 7.8, 3.4, 3.4 and 4.4, respectively. The major ionic species in dustfall were Ca2+, SO42-, Cl-, K+, Na+, F- and NO2-, and their concentrations were 2112, 825, 193, 177, 136, 136 and 130µgg-1, respectively. The industrial dust and surface soil dust, coal burning dust and constructing dust, motor vehicle emission and metal smelting dust, oil burning and waste incineration should be the dominant sources of dustfull and their contribution were 38.68%, 25.78%, 19.57%, 10.98%, respectively. Therefore, it obviously indicated that the atmospheric dust full was the multi-source pollution in Pingdingshan.","PeriodicalId":6396,"journal":{"name":"2010 4th International Conference on Bioinformatics and Biomedical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74647585","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

Maturity Evaluation of Spent Mushroom Compost 废蘑菇堆肥的成熟度评价

2010 4th International Conference on Bioinformatics and Biomedical Engineering Pub Date : 2010-06-18 DOI: 10.1109/ICBBE.2010.5517138

Yaning Luan, Xiangyang Sun, Suyan Li, Yong Qiao, L. Suo

{"title":"Maturity Evaluation of Spent Mushroom Compost","authors":"Yaning Luan, Xiangyang Sun, Suyan Li, Yong Qiao, L. Suo","doi":"10.1109/ICBBE.2010.5517138","DOIUrl":"https://doi.org/10.1109/ICBBE.2010.5517138","url":null,"abstract":"Maturity of compost is an important practical factor in agricultural and horticulture production. This study was conducted to perform maturity assessment for spent mushroom compost (SMC). Compost maturity were evaluated using standard chemical analyses (pH, EC, CEC, total C and N content, C/N ratio, NH4+-N, NO3--N). Subsequently, potential phytotoxicity from SMC was assessed by germination bioassay using Lepidium sativum L. (cress). SMC samples were collected periodically during a 28-d rapid composting period from a single windrow. Following composting time, the pH and EC values had a tendency to increase, and in the end, the two values maintained constant. The increasing continuously CEC did not appear to be a more sensitive indicator. Although total C content (TC) and total N content (TN) were of limited value in assessing compost maturity, C/N ratio decreased significantly. NH4+-N declined within the first 14 days of composting, while NO3--N did not increase until 14+ days. According to seed germination index (GI), when composting time was prolonged, the toxicity of SMC had a tendency to decrease. Results from the experiments indicate that 21 days after rapid composting, SMC is considered to be mature. It is therefore concluded that pH, EC and GI have potential as useful indicators for SMC maturity evaluation.","PeriodicalId":6396,"journal":{"name":"2010 4th International Conference on Bioinformatics and Biomedical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72759996","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

Review of High Arsenic Groundwater in China 中国高砷地下水研究进展

2010 4th International Conference on Bioinformatics and Biomedical Engineering Pub Date : 2010-06-18 DOI: 10.1109/ICBBE.2010.5517266

Zhiping Li, D. van Halem, J. Verberk

引用次数: 2

Study of Mathematical Model in Electrodialysis of Desalination 海水淡化电渗析的数学模型研究

2010 4th International Conference on Bioinformatics and Biomedical Engineering Pub Date : 2010-06-18 DOI: 10.1109/ICBBE.2010.5516941

G. Jing, L. Xing, Shulin Li

引用次数: 2

Landscape Monitoring and Dynamic Evolution of Wetland Resources in Beijing 北京湿地资源景观监测与动态演变

2010 4th International Conference on Bioinformatics and Biomedical Engineering Pub Date : 2010-06-18 DOI: 10.1109/ICBBE.2010.5515490

L. Gu, Xin-jie Wang, Zhi-wen Gong, Jin Wang, Hao Xu

{"title":"Landscape Monitoring and Dynamic Evolution of Wetland Resources in Beijing","authors":"L. Gu, Xin-jie Wang, Zhi-wen Gong, Jin Wang, Hao Xu","doi":"10.1109/ICBBE.2010.5515490","DOIUrl":"https://doi.org/10.1109/ICBBE.2010.5515490","url":null,"abstract":"It is very significant for urban development and urban wetland protection. Wetland, considered as the natural ecosystem and landscape style, has great resource potentiality and environmental function. For a long time, the change of wetland landscape pattern has been affected by human activity, and has changed the existing wetland function, and exerted influence on wetland environment. In this paper, the capital city of Beijing is for the study of wetland areas, and we used Markov Model to analysis the dynamic change and the trend evolution. Supported by RS and GIS technology, combined the achievements in previous researches and numerous field investigations, we used Landsat-TM images of 1978, 1974, 1991, 1996, 2001 and 2005 as the information source. Several landscape indices were used to evaluate the changes of landscape pattern. The results showed that Beijing wetlands recourses degraded significantly in the past three decade, the area had dropped by 54.0%, from 68491.63 hm2 in 1978 to 31416.31 hm2 in 2005; The patches of wetlands tended to be irregular, and the degree of fragmentation was increasing, thus the wetlands would be easy to cause regression, and its function was difficult to exert; The transition probability matrices at two primary states (1996 and 2005) were established. Then, the development and the future tendency of wetland landscape patterns are simulated and forecasted with Markov process. Most of the natural wetlands areas would be increasing and urban area decreasing, which showed urbanization process has great impact on wetland landscape pattern.","PeriodicalId":6396,"journal":{"name":"2010 4th International Conference on Bioinformatics and Biomedical Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73222885","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: 2

Monitoring and Evaluating Aquatic Environment in Mining Subsidence Supported by 3D GIS 基于三维GIS的矿区沉陷水环境监测与评价

2010 4th International Conference on Bioinformatics and Biomedical Engineering Pub Date : 2010-06-18 DOI: 10.1109/ICBBE.2010.5517822

Yanbin Wu, Ming Huang

引用次数: 2

Application of Modified Streeter-Phelps Model and COD Changing Model to Xiangxi River in Three Gorges Reservoir Area 修正Streeter-Phelps模型及COD变化模型在三峡库区香溪河的应用

2010 4th International Conference on Bioinformatics and Biomedical Engineering Pub Date : 2010-06-18 DOI: 10.1109/ICBBE.2010.5517979

Hui Peng, Wei Yao, Ping Huang

引用次数: 3

Steeper Action Potential Duration Restitution Slope Increases Risk of Ventricular Fibrillation: A Simulation Study 更陡的动作电位持续时间恢复斜率增加心室颤动的风险:一项模拟研究

2010 4th International Conference on Bioinformatics and Biomedical Engineering Pub Date : 2010-06-18 DOI: 10.1109/ICBBE.2010.5515680

Yi Zheng, D. Wei, Zuxiang Fang

引用次数: 1