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  • 1
    Electronic Resource
    Electronic Resource
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Plant Physiology and Plant Molecular Biology 42 (1991), S. 467-506 
    ISSN: 1040-2519
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Biology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Plant Physiology 37 (1986), S. 467-506 
    ISSN: 0066-4294
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Biology
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Plant, cell & environment 18 (1995), S. 0 
    ISSN: 1365-3040
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Mutations at the chsl locus in Arabidopsis thaliana (L.) confer a chilling-sensitive phenotype in which plants become chlorotic and die after more than 3 d of exposure to temperatures in the range of 18 to 10°C. Within 8h after transfer of mutant plants from growth at 23 to 13°C, accumulation of the newly synthesized chloroplast-localized polypeptides stearoyl-ACP desaturase, glutamine synthetase and OEC 23 was severely impaired. By contrast, there was no apparent deleterious effect on the accumulation of two extrachloroplastic proteins examined: the elongation factor lα, and the phloem-specific, extrachloroplastic isoform of glutamine synthetase. In one instance examined in detail, chilling did not decrease the accumulation of mRNA for stearoyl-ACP desaturase, indicating that the effect was post-transcriptional. Chloroplasts isolated from chilled wild-type and chsl plants were equally able to process and protect from protease digestion in vitro synthesized pre-plastocyanin. The results suggest that the chsl mutant may be defective in some aspect of chloroplast protein accumulation at low temperature.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Plant, cell & environment 17 (1994), S. 0 
    ISSN: 1365-3040
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Mutants and transgenic plants with altered expression of genes implicated in lipid metabolism are providing fresh insights into the regulation and function of lipid composition. To date, several genes encoding fatty acid desaturases, acyltransferases, a thioesterase, a lipid transfer protein and an isoform of acyl-carrier protein have been introduced into transgenic plants. Despite the fact that some of these transgenic plants had large alterations in lipid composition, they showed surprisingly little phenotypic variation from wild-type plants. Although detailed analyses of these plants are just beginning, several theories regarding the roles of particular genes in various plant processes, such as cold tolerance and transfer of lipids between membranes, have been either substantiated or discarded on the basis of the data already obtained. In addition, constructs that contain the promoter regions of genes implicated in lipid metabolism fused to reporter genes have been introduced into transgenic plants and are providing some clues as to how lipid composition is regulated.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Oxford, UK and Boston, USA : Blackwell Publishers Ltd
    Real estate economics 29 (2001), S. 0 
    ISSN: 1540-6229
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: Real estate development from raw land to completed structures is a multistage process. Given the current view of development as the exercise of a real option, the question arises whether development should be modeled as a compound option. This paper tests the validity of the compound option characterization by determining whether builders start units for which they have permits and then complete units started consistent with the predictions of the real options model. To do so, I first identify a reduced form relationship between permits and starts and then between starts and completions. The parameters of this relationship indicate how well permits proxy for starts and starts for completions. Then, I determine whether controlling for this structural relationship, new information, and uncertainty in returns affect permit exercise and completion rates, as in the exercise of real options. I find that current and previous quarter permits forecast current single-family starts, while multifamily starts require more quarterly lags of permits. More than one and two year’s worth of lagged starts numbers are needed to estimate current quarter completions for single- and multifamilys buildings, respectively. The principal result is that once building permits have been obtained, the development process proceeds to completion. While there is no evidence that completion is the exercise of an option embedded in a start, some aspects of permits are consistent with builders treating them as an option for starts. However, even if they do, given permits obtained, it takes large changes in market conditions to affect small changes in starts.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Real estate economics 27 (1999), S. 0 
    ISSN: 1540-6229
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: Existing studies of housing markets assume that homebuilding is a homogeneous, perfectly competitive industry. This paper uses MSA-level data on the average size of homebuilder establishments and homebuilder market concentration to test the appropriateness of this paradigm. The data reveal a wide and systematic variation across metropolitan-area housing markets in both the average size of builders and the market share for the largest builders in an MSA. These results are more consistent with treating homebuilders as monopolistically competitive suppliers of a differentiated product than with treating them as perfectly competitive homogeneous firms. Builders are larger in more active housing markets and where there is a greater supply of readily developed land suitable for large developments. Builder size and concentration are sensitive to the type of regulating jurisdiction imposing land-use regulation. Both are lower when land-use regulations are imposed by smaller jurisdictions, and this is particularly true when the smaller jurisdictions impose more intense regulation.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Archives of Biochemistry and Biophysics 280 (1990), S. 412-415 
    ISSN: 0003-9861
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Archives of Biochemistry and Biophysics 264 (1988), S. 343-347 
    ISSN: 0003-9861
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 286 (1980), S. 257-259 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] These mutants are inviable in atmospheric conditions that permit photorespiration, but are fully viable and phenotypically indistinguishable from the wild type when maintained in an atmosphere that suppresses photorespiration5 (1 % CO2 in air). This conditional lethal phenotype, shared by ...
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  • 10
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 280 (1979), S. 833-836 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The mutants were recovered as conditional lethals which are phenotypically indistinguishable from the wild type when grown in air enriched to 1% CO2, but which are inviable in normal atmospheric conditions of 0.03% CO2. The rationale for the screening procedure is that conditions of elevated CO2 ...
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