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  • 1
    Monograph available for loan
    Monograph available for loan
    Der Botanische Garten Berlin-Dahlem : Führer durch das Freiland und die Gewächshäuser (1992)
    Berlin : Fördererkreis der Naturwiss. Museen Berlins
    Details Availability
    Call number: PIK N 630-15-89522
    Type of Medium: Monograph available for loan
    Pages: 112 S. , zahlr. Ill.
    ISBN: 3921800358
    URL: Inhaltsverzeichnis
    Location: A 18 - must be ordered
    Branch Library: PIK Library
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  • 2
    Electronic Resource
    Electronic Resource
    Seed Protein Topology: Molecular Profiles (1994)
    s.l. : American Chemical Society
    Journal of agricultural and food chemistry 42 (1994), S. 909-914 
    Details
    ISSN: 1520-5118
    Source: ACS Legacy Archives
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jf00040a014
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  • 3
    Electronic Resource
    Electronic Resource
    Photorefractive Two Wave Mixing and Steady State Photocarrier Gratings for Semiconductor Characterization (1994)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 173-174 (Sept. 1994), p. 185-190 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/00/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.173-174.185.pdf
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  • 4
    Electronic Resource
    Electronic Resource
    Thin-skinned thrust mineralization in the Brasília fold belt: the example of the old Luziânia gold deposit (1992)
    Springer
    Mineralium deposita 27 (1992), S. 293-303 
    Details
    ISSN: 1432-1866
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract The Luziânia gold deposits in southern Goiás lie within the Late Proterozoic Brasília fold belt. The rocks that host the gold mineralization are a monotonous series of hydrothermally altered phyllites that have been subject to low grade regional metamorphism. The major controls on the gold mineralization are northeast trending and gently northwest dipping ductile-brittle, dextral-reverse shear zones associated with regional thin-skinned thrusting of the Canastra Group. From a preliminary fluid inclusion study it is deduced that low salinity, ⩽ 7 eq. wt% NaCl, moderately dense, H2O-CO2 ± CH4 ore fluids deposited gold at temperatures of 300 ± 75°C and pressures of 1.5 to 3 kb in the filling stage of the vein formation. Post-filling stage gold deposition probably occured by mixing of fluids at higher crustal levels (1.5–2 kb). During thrusting, prograde metamorphism released pore water which penetrated along thrust planes that acted as high permeability zones for the ponding and release, by hydraulic fracturing, of overpressured fluids. Later in the tectonic evolution and at shallower crustal levels, there was likely an incursion of near suface water into the fault zone.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00193400
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  • 5
    Electronic Resource
    Electronic Resource
    P-related sequences inDrosophila bifasciata: A molecular clue to the understanding of P-element evolution in the genusDrosophila (1990)
    Springer
    Journal of molecular evolution 31 (1990), S. 478-484 
    Details
    ISSN: 1432-1432
    Keywords: P-element evolution ; Drosophila bifasciata ; Recent invasion hypothesis ; Horizontal gene transfer ; Sequence divergence ; Substitution rate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Two P-elements (bif1 and bif2) were isolated from a genomic library ofDrosophila bifasciata. Both elements are internally deleted and have lost the coding capacity for a functional transposase. One of the elements (bif2) contains an insert consisting of a repetitive sequence. The terminal inverted repeats and the segments necessary for passive mobility are well conserved. Element bif2 has retained rudiments of the coding sequence of exon 0 and exon 3, but the reading frame is destroyed by insertions and deletions. The comparison of theD. bifasciata P-elements with P-elements ofDrosophila melanogaster andDrosophila nebulosa reveals that the two latter sequences are more similar to each other than either of them is to theD. bifasciata elements. This finding contradicts the phylogenetic relationship of the species and can be taken as an indirect but unequivocal evidence for recent horizontal gene transfer from a relative ofD. nebulosa to the gene pool ofD. melanogaster. The P-elements ofD. bifasciata are phylogenetically ancient and have evolved independently for about 50 million years. A higher substitution rate at the third codon position as well as a predominance of conservative replacements at the amino acid level indicates that the P-elements ofD. bifasciata have been under selective constraint over a long period and that immobilization has occurred only recently.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02102074
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  • 6
    Electronic Resource
    Electronic Resource
    Repetitive sequences in the genome ofAnemone blanda: Identification of tandem arrays and of dispersed repeats (1993)
    Springer
    Chromosoma 102 (1993), S. 312-324 
    Details
    ISSN: 1432-0886
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract A tandemly repetitive sequence family (AbS1) and a repetitive sequence (Hd) forming part of a larger dispersed element (dorf-1) ofAnemone blanda were characterised. TheAbS1 satellite sequence family is located in all 4′,6-diamidino-2-phenylindole (DAPI) positive intercalary heterochromatic bands and in the DAPI positive heterochromatic terminal region of chromosome 3, while the dispersedHd homologous sequences are preferentially associated with euchromatic chromosome regions. The major component of theAbS1 satellite isAbS1-H1 with a basic repeat unit of 1640 bp; a minor fraction (AbS1-H5) consists of 320 bp units. A subsection of theAbS1-H1 repeat unit exhibits homologies to the 25S rRNA gene of flowering plants suggesting that the 1.64 kb satellite was generated by amplification of a precursor satellite and/or single copy sequence together with an rDNA fragment. The rDNA homologous region is considered to evolve at a rate similar to pseudogenes and thus the age of this satellite DNA fraction can be roughly estimated as about 27 million years. The dispersed repeated sequenceHd (about 1300 bp) is associated with the 8 kb elementdorf-1. A. blanda dorf-1 constitutes about 0.2% of the genome (3×104 copies), is bounded by identical long terminal repeats, and exhibits partial homology to theLilium gypsy-type elementdell, but has yet to be confirmed as a retrotransposon. In contrast to theAbS1 satellite sequence family,Hd homologous sequences were found not only inA. apennina, the closest relative ofA. blanda, but also inA. nemorosa andA. ranunculoides indicating that a progenitor sequence ofdorf-1 was present in a common ancestor before speciation ocurred.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00661274
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  • 7
    Electronic Resource
    Electronic Resource
    Release of glucosylglycerol from the cyanobacterium Synechocystis spec. SAG 92.79 by hypoosmotic shock (1990)
    Springer
    Archives of microbiology 153 (1990), S. 405-408 
    Details
    ISSN: 1432-072X
    Keywords: Cyanobacteria ; Exudation ; Salt stress ; Glucosylglycerol ; Synechocystis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract When cells of Synechocystis, adapted to 684 mmol/l NaCl, were exposed to hypoosmotic shock by reducing NaCl concentration to more than 250 mmol/l, significant amounts of organic material were liberated which could be increased by increasing shock strength. After maximal hypoosmotic shock (684 mmol/l→ 2 mmol/l NaCl) 40–50% of photosynthetically labelled organic material occurred in the surrounding medium. The main compound exudates was the osmoprotective compound glucosylglycerol. Minor exudates were amino acids, organic acids and carbohydrates. In contrast a hyperosmotic shock (2 mmol/l→684 mmol/l NaCl) liberated only one fourth of the amount liberated by a hypoosmotic shock.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00249013
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  • 8
    Electronic Resource
    Electronic Resource
    Comparison of salt- and heat-induced alterations of protein synthesis in the cyanobacterium Synechocystis sp. PCC 6803 (1991)
    Springer
    Archives of microbiology 155 (1991), S. 587-592 
    Details
    ISSN: 1432-072X
    Keywords: Cyanobacteria ; Salt shock ; Heat shock ; Protein synthesis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Protein synthesis of the cyanobacterium Synechocystis spec. PCC 6803 decreases after a 684 mM NaCl salt shock. Qualitative changes were observed during the shock and the subsequent adaptation process using one-dimensional polyacrylamide electrophoresis. Proteins of apparent molecular masses of 13.0, 14.2, 16.6, 20.0, 21.0, 23.0, 33.0, 47.0, 52.0, 65.0 and 72.0 kDa are synthesized at enhanced rates after salt stress. The proteins of 14.2, 21.1 and 52.0 kDa are transiently induced during the first hours of the adaptation phase, while the other proteins are also synthesized at enhanced rates in salt-adapted cells. The proteins of 14.2, 23.0, 33.0 and 65.0 kDa are also induced by heat shock (43°C). Heat shock proteins of about 88.0, 75.0, 58.0, 17.5 and 13.8 kDa, in contrast, are induced by heat shock but not by salt. Two-dimensional polyacrylamide electrophoresis showed that the induced salt and heat shock proteins in some cases consisted of isoforms of different isoelectric points.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00245354
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  • 9
    Electronic Resource
    Electronic Resource
    Selection and characterization of mutants of the cyanobacterium Synechocystis sp. PCC 6803 unable to tolerate high salt concentrations (1992)
    Springer
    Archives of microbiology 158 (1992), S. 429-434 
    Details
    ISSN: 1432-072X
    Keywords: Cyanobacteria ; Glucosylglycerol ; Random cartridge mutagenesis ; Salt tolerance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Three mutants of the cyanobacterium Synechocystis sp. PCC 6803 unable to tolerate high salt concentrations were generated using random cartridge mutagenesis. Analysis of the phenotypes revealed that the salt sensitivity of one mutant (6803/143) is caused by a block in the synthesis of the osmoprotective substance glucosylglycerol, while in the two other mutants no physiological defect could be detected which was responsible for the loss of salt tolerance. Southern hybridization analyses and cloning of the integration sites of the resistance marker demonstrated that different genes are affected in each of the three mutants.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00276304
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  • 10
    Electronic Resource
    Electronic Resource
    Salt-dependent protein phosphorylation in the cyanobacterium Synechocystis PCC 6803 (1993)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 113 (1993), S. 0 
    Details
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Abstract Hyper- and hypo-osmotic salt shocks in the presence of [32P]PO43− led to the appearance and disappearance of several 32P-labelled proteins in vivo within a few minutes. Similar to the in vivo labelling experiments, a 20.5-kDa protein was also more intensely labelled in extracts from salt-shocked cells using [γ-32P]ATP in in vitro labelling experiments. Furthermore, labelling of this and a protein of about 64.4 kDa was induced by adding high amounts of NaCl directly to extracts of control cells in kinase assays. Therefore, changes in the NaCl contents led to alterations of the activity of protein in Synechocystis sp. PCC 6803, which may be involved in the signal transduction chain sensing changes in the NaCl content of the surrounding medium.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-6968.1993.tb06515.x
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