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  • Springer Nature  (211)
  • American Association for the Advancement of Science  (52)
  • Blackwell Publishing Ltd  (37)
  • American Physical Society (APS)
  • 2005-2009  (160)
  • 1995-1999  (93)
  • 1955-1959  (47)
Collection
Publisher
Years
Year
  • 11
    Electronic Resource
    Electronic Resource
    Investing in Eastern Europe: Two case histories (1996)
    Oxford, UK : Blackwell Publishing Ltd
    Business strategy review 7 (1996), S. 0 
    Details
    ISSN: 1467-8616
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: This feature is in three parts: the first two are case histories of the contrasting experiences of two Western companies which expanded abroad for the first time in the mid-1990s, into different countries in Eastern Europe. One is so far successful, the other not. The third section draws out the implications of these experiences: although still quite risky, investment in Central and Eastern Europe can already be made to pay by firms that enter as part of a well-conceived and financed global strategy. Particular benefits are lower labour costs and access to untapped markets.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-8616.1996.tb00112.x
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  • 12
    Electronic Resource
    Electronic Resource
    The Hepatitis Nucleocapsid as a Vaccine Carrier Moiety (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 754 (1995), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1995.tb44451.x
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  • 13
    Electronic Resource
    Electronic Resource
    A PHYSICOCHEMICAL RATIONALE FOR THE BIOLOGICAL ACTIVITY OF MERCURY AND ITS COMPOUNDS (1957)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 65 (1957), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1956.tb36650.x
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  • 14
    Electronic Resource
    Electronic Resource
    Aphototropic mutants of the moss Ceratodon purpureus with spectrally normal and with spectrally dysfunctional phytochrome (1996)
    Oxford, UK : Blackwell Publishing Ltd
    Plant, cell & environment 19 (1996), S. 0 
    Details
    ISSN: 1365-3040
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Following UV mutagenesis of protonemal tissue of the moss Ceratodon purpureus we have isolated different aphototropic mutant lines that can be divided into two distinct classes. One class, represented by the line ptr1, shows characteristic features of phytochrome chromophore deficiency. ptrl shows negligible photoreversibility (〈5% of wild type), whereas immunoblots show normal apoprotein levels. The aphototropic phenotype could be partially restored with biliverdin, a precursor of the phytochrome chromophore. It was found that, whereas in wild type formation of Pfr leads to suppression of gravitropism, there is no such suppression ptrl. In addition, ptr1 shows lower chlorophyll levels than the wild type. These findings indicate that, as expected for a chromophore-deficient mutant, multiple phytochrome effects are lost. The other class of mutants, represented by the line ptr103, shows more specific effects. In this mutant, only phototropism is affected. Suppression of gravitropism, the content of chlorophyll and photoreversibility of phytochrome were similar to those of the wild type.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3040.1996.tb00389.x
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  • 15
    Electronic Resource
    Electronic Resource
    Expression of cold-inducible genes and frost hardiness in the crown meristem of young barley (Hordeum vulgare L. cv. Igri) plants grown in different environments (1996)
    Oxford, UK : Blackwell Publishing Ltd
    Plant, cell & environment 19 (1996), S. 0 
    Details
    ISSN: 1365-3040
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: The purpose of this work was to examine environmental control of expression, at the mRNA level, of cold-inducible genes and to test the relationship of the expression of the genes to cold acclimation. Barley plants (Hordeum vulgare L. cv. Igri) at the three- to four-leaf stage were (a) grown in different temperature environments between 20/15°C and +4/-4°C or (b) transferred between 20/15°C and 6/2°C or (c) grown under drought or nutrient stress conditions. Frost hardiness (using a regrowth method) and mRNA levels for three cold-induced genes, blt4-9, blt14 and blt101, from meristematic crown tissue (vegetative shoot meristem plus subtending stem and associated root initials) were measured. Hardiness and levels of blt4-9, blt14 and blt101 mRNAs increased with lower growth temperatures, below a maximum inductive temperature. Prior temperature environment and plant age affected the rate of change in mRNA levels of these genes in response to a change of temperature environment. Hardiness was strongly correlated with mRNA levels of these genes in plants grown in different temperature environments. This correlation did not extend to plants exposed to drought or nutrient stresses. Implications are drawn for plant responses to a warmer climate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3040.1996.tb00250.x
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  • 16
    Electronic Resource
    Electronic Resource
    ESTIMATING THE SOIL CONTENT OF HERBAGE COLLECTED BY FORAGE HARVESTER (1959)
    Oxford, UK : Blackwell Publishing Ltd
    Grass and forage science 14 (1959), S. 0 
    Details
    ISSN: 1365-2494
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: A method is described Tor estimating the amount of contamination by soil caused when herbage is collected with a forage harvester. Hand-cut samples of herbage are used as a control. To avoid sub-sampling errors a relatively large sample is used. It is oven-dried and then compressed to facilitate ashing. Acid-insoluble ash (“silica”) content is used as a measure of contamination. The Statistical examination of the data is discussed briefly.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2494.1959.tb01011.x
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  • 17
    Electronic Resource
    Electronic Resource
    Protein exporter function and in vitro ATPase activity are correlated in ABC-domain mutants of HlyB (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Molecular microbiology 16 (1995), S. 0 
    Details
    ISSN: 1365-2958
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: The Escherichia coli toxin exporter HlyB comprises an integral membrane domain fused to a cytoplasmic domain of the ATP-binding casette (ABC) super-family, and it directs translocation of the 110kDa haemolysin protein out of the bacterial cell without using an N-terminal secretion signal peptide. We have exploited the ability to purify the soluble HlyB ABC domain as a fusion with glutathione S-transferase to obtain a direct correlation of the in vivo export of protein by HlyB with the degree of ATP binding and hydrolysis measured in vitro. Mutations in residues that are invariant or highly conserved in the ATP-binding fold and glycine-rich linker peptide of prokaryotic and eukaryotic ABC transporters caused a complete less of both HlyB exporter function and ATPase activity in proteins still able to bind ATP effectively and undergo ATP-induced conformational change. Mutation of less-conserved residues caused reduced export and ATP hydrolysis, but not ATP binding, whereas substitutions of poorly conserved residues did not impair activity either in vivo or in vitro. The data show that protein export by HlyB has an absolute requirement for the hydrolysis of ATP bound by its cytoplasmic domain and indicate that comparable mutations that disable other prokaryotic and eukaryotic ABC transporters also cause a specific loss of enzymatic activity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2958.1995.tb02394.x
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  • 18
    Electronic Resource
    Electronic Resource
    Independent interaction of the acyltransferase HlyC with two maturation domains of the Escherichia coli toxin HlyA (1996)
    Oxford, UK : Blackwell Publishing Ltd
    Molecular microbiology 20 (1996), S. 0 
    Details
    ISSN: 1365-2958
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: The apparently unique fatty acylation mechanism that underlies activation (maturation) of Escherichia coli haemolysin and related toxins is further clarified by investigation of the interaction of protoxin with the specific acyltransferase HlyC. Using deleted protoxin variants and protoxin peptides as substrates in an in vitro maturation reaction dependent upon HlyC and acyl-acyl carrier protein, two independent HlyC recognition domains were identified on the 1024-residue protoxin, proA, and they were shown to span the two target lysine residues K564 (KI) and K690 (KII) that are fatty acylated. Each domain required 15–30 amino acids for basal recognition and 50–80 amino acids for wild-type acylation. The two domains (FAI and FAII) competed with each other in cis and in trans for HlyC. The affinity of FAI for HlyC is approximately four times greater than that of FAII resulting in an overall 80% acylation at KI and 20% acylation at KII in both whole toxin and peptide derivatives. No other proA sequences were required for toxin maturation, and excess Ca2+ prevented acylation of both lysines. The lack of primary sequence identity between FAI and FAll domains in proA and among corresponding sites on related protoxins currently precludes an explanation of the basis of HlyC recognition by proA.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2958.1996.tb02519.x
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  • 19
    Electronic Resource
    Electronic Resource
    Requirement for FlhA in flagella assembly and swarm-cell differentiation by Proteus mirabilis (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Molecular microbiology 15 (1995), S. 0 
    Details
    ISSN: 1365-2958
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: Swarming by Proteus mirabilis is characterized by cycles of rapid population migration across surfaces, following differentiation of typical rods into long, aseptate swarm cells that overexpress flagella and virulence factors, particularly haemolysin. A non-swarming Tn5phoA mutant was unable to synthesize flagella, to fully elongate or to induce high levels of the toxin. The mutation lay within a 2091 bp gene encoding a homologue of the Escherichia coli FlhA belonging to a family of proteins that are required for assembly of flagella or virulence proteins and that are suggested to act either directly in membrane trans-location and/or in regulating synthesis of the export apparatus. In trans expression of multicopy flhA restored cell elongation and migration and generated differentiation-specific hyperexpression of flagellin and toxin genes to levels above those seen in the wild-type strain. Transcription of flhA was strongly induced during differentiation, from its own putative σ28 promoter. The results suggest a mechanistic coupling of flagella assembly and swarm-cell differentiation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2958.1995.tb02383.x
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  • 20
    Electronic Resource
    Electronic Resource
    The role of anti-sigma factors in gene regulation (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Molecular microbiology 16 (1995), S. 0 
    Details
    ISSN: 1365-2958
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: Despite the isolation of an anti-sigma factor over 20 years ago, it is only recently that the concept of an anti-sigma factor emerged as a general mechanism of transcriptional regulation in prokaryotic systems. Anti-sigma factors bind to sigma factors and inhibit their transcriptional activity. Studies on the mechanism of action of anti-sigma factors has shed new light on the regulation of gene expression in bacteria, as the anti-sigma factors add another layer to transcriptional control via negative regulation. Their cellular roles are as diverse as FlgM of Salmonella typhimurium, which can be exported to sense the structural state of the flagellar organelle, to SpollAB of Bacillus subtilis participating in the switch from one cell type to another during the process of sporulation. Additionally, the bacteriophage T4 uses an anti-sigma factor to sabotage the Escherichia coli E·σ70 RNA polymerase in order to direct exclusive transcription of its own genes. Cross-linking., co-immuno-precipitations, and co-purification indicate that the anti-sigma factors directly interact with their corresponding sigma factor to negatively regulate transcription. in B. subtilis, anti anti-sigma factors regulate anti-sigma factors by preventing an anti-sigma factor from interacting with its cognate sigma factor, thereby allowing transcription to occur.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2958.1995.tb02405.x
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