Xem 1-20 trên 151 kết quả Salt tolerance
  • Mechanisms of salt tolerance in halophytes: can crop plants resistance to salinity be improved? High concentrations of sodium are toxic to most plant species, making soil salinity a major abiotic stress in plant productivity world wide. Many crop species, which countless people rely for survival, are negatively affected.

    pdf11p nguyenngocsonctu 24-11-2010 86 12   Download

  • Objectives: Identifying the salinity tolerance and phenotype of the rice lines which carrying the Saltollocus (donor plant), imported from International Rice Research Institute, as well as selecting the popularly grown rice cultivar were used as the recipient plant Applying marker assisted backcrossing (MABC) to pyramid salinity tolerance Saltol locus into Bac Thom 7, in order to generate the high quality rice variety with salinity tolerance for growing the coastal areas in Red River Delta.

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  • Salinity stress negatively impacts agricultural yield throughout the world affecting production whether it is for subsistence or economic gain. The plant response to salinity consists of numerous processes that must function in coordination to alleviate both cellular hyperosmolarity and ion disequilibrium. In addition, crop plants must be capable of satisfactory biomass production in a saline environment (yield stability).

    pdf9p nguyenngocsonctu 21-11-2010 61 16   Download

  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Proteomic identification of OsCYP2, a rice cyclophilin that confers salt tolerance in rice (Oryza sativa L.) seedlings when overexpressed

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Salt tolerance in Solanum pennellii: antioxidant response and related QTL

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: An ABRE-binding factor, OSBZ8, is highly expressed in salt tolerant cultivars than in salt sensitive cultivars of indica rice

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  • Glutaminase from Micrococcus luteusK-3 [Micrococcusglutaminase (Mglu); 456 amino acid residues (aa); 48 kDa] is a salt-tolerant enzyme. Our previous study determined the structure of its major 42-kDa fragment. Here, using new crystallization conditions, we determined the structures of the intact enzyme in the presence and absence of its product l-glutamate and its activator Tris, which activates the enzyme by sixfold.

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  • Populations in developing countries are growing so quickly that the land and water are unable to sustain them. In most developing countries, prime farmland and fresh water are already fully utilized. Although irrigation can be employed to bring land in arid areas into production, it often leads to salinization. In some countries, the amount of newly irrigated land is equalled by salinized irrigated land going out of production. Moreover, irrigation water is often drawn from river basins or aquifers shared by several countries, and friction over its use is common....

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  • Abstract This study was conducted in order to evaluate the probiotic properties of lactic acid bacteria (LAB) isolated from intestinal tract of broilers and Thai indigenous chickens. The major properties, including the gastric juice and bile salts tolerance, starch, protein and lipid digesting capabilities, and the inhibition on certain pathogenic bacteria were investigated. Three-hundred and twenty-two and 226 LAB strains were isolated from ten broilers and eight Thai indigenous chickens, respectively....

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  • Three major approaches can be used in an effort to segment a market. 22 They include the a-priori, a-posteriori and hybrid approach. The selection of an approach depends on the objectives of the researcher in undertaking a segmentation study. In a-priori (predetermined) market segmentation, the type (segmentation variables) and number of market segments are determined before data collection. With this ap- proach, there are two main questions, namely the estimated sizes of these segments in the market place, and some relevant segment characteristics ( descriptor variables).

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  • Lichens are long-lived and can be monitored, field conditions permitting, in any season. Many lichens have extensive geographical ranges, allowing study of pollution gradients over large areas. These properties make them useful for spatial and temporal evaluation of pollutant accumulation in the environment. Epiphytic lichens (those that grow on trees or plants) are often best suited to the study of air pollution effects on lichen communities, lichen growth or physiology, and to the study of pollutant loading and distribution.

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  • Candidate no:000124971 Mechanisms of salt tolerance in halophytes: can crop plants resistance to salinity be improved? Jennifer Seaman High concentrations of sodium are toxic to most plant species, making soil salinity a major abiotic stress in plant productivity world wide. Many crop species, which countless people rely for survival, are negatively affected.

    pdf11p nguyenngocsonctu 21-11-2010 57 9   Download

  • The Bank, IMF and World Bank participated in a Government Forum organized in March 2011 to discuss the recently approved Strategy for Arrears Clearance. A major conclusion from the workshop was the importance of reaching agreement on a Staff Monitored Program with the IMF as a critical component of the path towards arrears clearance and debt relief and a grandfathering of Zimbabwe by the IDA Executive Board if it is to benefit from the HIPC Initiative.

    pdf9p lenh_hoi_xung 01-03-2013 30 6   Download

  • Often communities have to deal with local political considerations when they plan events. No specific advice can be given to the promoter except to warn him or her that political considerations are always important to the local community. Often a way to encourage elected political officials to support an event is to show the monetary or quality-of-life impact that a successful event would have on their communities or careers. Explaining the positive impact encourages officials to support the public safety coordinators by providing adequate local resources and funding. ...

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  • Canadian GAAP requires the use of bid prices for long positions and ask prices for short positions in the fair valuation of investments traded in an active market, rather than the use of closing prices currently used for the purpose of determining Net Asset Value (“NAV”). For investments that are not traded in an active market, Canadian GAAP requires the use of valuation techniques, incorporating factors that market participants would consider in setting a price.

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  • Phototrophy is the process by which organisms trap photons and store energy as chemical energy in the form of adenosine triphosphate (ATP). ATP transports chemical energy within cells for metabolism. There are three major types of phototrophy: Oxygenic and Anoxygenic photosynthesis, and Rhodopsin-based phototrophy. Photosynthesis is a chemical process that converts carbon dioxide into different organic compounds using solar energy. Oxygenic and anoxygenic photosynthesis undergo different reactions in the presence and absence of light (called light and dark reactions, respectively).

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  • Genetic diversity is the fundamental source of biodiversity – the total number of genetic characters contributing to variation within species. In other words it is the measure that quantifies the variation found within a population of a given species. Genetic diversity among individuals reflects the presence of different alleles in the gene pool, and hence different genotypes within populations. Genetic diversity should be distinguished from genetic variability, which describes the tendency of genetic traits found within populations to vary (Laikre et al., 2009).

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  • The Appendix consists of three tables. The first table lists the INNs of pharmaceutical active ingredients that are eligible for duty-free treatment. The second table consists of chemical prefixes and suffixes that may be combined with the INNs to specify pharmaceutical derivatives that are also included in the agreement. The third table specifies the chemical intermediates for which duties have been eliminated. U.S. imports of products included in the Pharmaceutical Appendix totaled over $85 billion in 2009; U.S. exports of these products exceeded $41 billion.

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  • The success of the implementation of a New Policy Proposal will be judged in terms of the benefits delivered – i.e. the measurable improvements resulting from outcomes which are perceived as an advantage by stakeholders. From the moment the first elements of change are introduced into the operations of a department or agency and on-the-ground in the public arena, expectations will be met or not met.

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  • This trend reflects the ongoing disen- chantment with mass media advertising based on the difficulty of measuring its effectiveness. However, the trend also reflects a desire by manufacturers and retailers to get closer to customers in some form of relationship marketing. A number of explanations have been forwarded for the increasing popularity of promotions (Dickson and Sawyer, 1990; Quelch, 1983; Low and Jakki, 2000; Dawes, 2004). One of the key factors is the changing relationship with advertising.

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