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  • GEOPHYSICS  (3)
  • Saccharomyces cerevisiae  (3)
  • 1990-1994  (2)
  • 1985-1989  (4)
  • 1
    Electronic Resource
    Electronic Resource
    Effects of m-Cl-peroxy benzoic acid on glycolysis in Saccharomyces cerevisiae (1985)
    Springer
    Archives of microbiology 143 (1985), S. 220-224 
    Details
    ISSN: 1432-072X
    Keywords: Peroxy benzoic acid ; Saccharomyces cerevisiae ; ATP ; Glycolysis ; Glyceraldehyde-3-phosphate dehydrogenase ; Colony forming capacity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Concentrations of m-Cl-peroxy benzoic acid (CPBA) higher than 0.1 mM decrease the ATP-content of Saccharomyces cerevisiae in the presence of glucose in 1 min to less than 10% of the initial value. In the absence of glucose, 1.0 mM CPBA is necessary for a similar effect. After the rapid loss of ATP in the first min in the presence of glucose caused by 0.2 mM CPBA, the ATP-content recovers to nearly the initial value after 10 min. Aerobic glucose consumption and ethanol formation from glucose are both completely inhibited by 1.0 mM CPBA. Assays of the activities of nine different enzymes of the glycolytic pathway as well as analysis of steady state concentrations of metabolites suggest that glyceraldehyde-3-phosphate dehydrogenase is the most sensitive enzyme of glucose fermentation. Phosphofructokinase and alcohol dehydrogenase are slightly less sensitive. Incubation for 1 or 10 min with concentrations of 0.05 to 0.5 mM CPBA causes a) inhibition of glyceraldehyde-3-phosphate dehydrogenase, b) decrease of the ATP-content and c) a decrease of the colony forming capacity. From these findings it is concluded that the disturbance of the ATP-producing glycolytic metabolism by inactivation of glyceraldehyde-3-phosphate dehydrogenase may be an explanation for cell death caused by CPBA.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00411239
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Effect of ozone on ATP, cytosolic enzymes and permeability of Saccharomyces cerevisiae (1987)
    Springer
    Archives of microbiology 147 (1987), S. 105-108 
    Details
    ISSN: 1432-072X
    Keywords: Ozone ; Yeast ; Saccharomyces cerevisiae ; ATP ; Nucleotides ; Permeability ; Cytosolic enzymes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Treatment of a yeast suspension with ozone inactivates a number of cytosolic enzymes. Among 15 studied, the most drastic inactivation was found for glyceraldehyde-3-phosphate dehydrogenase and to lesser extents: NAD-glutamate dehydrogenase, pyruvate decarboxylase, phosphofructokinase-1 and NAD-alcohol dehydrogenase. Ozone treatment also effects the quantity of ATP and of other nucleoside triphosphates, reducing to about 50% of the initial value. The ATP missing in the cells appears in the medium. NAD and protein also accumulate in the medium suggesting that the yeast cells have been permeabilized. Permeabilization of the yeast cells by treatment with ozone preceeds the inactivation of glyceraldehyde-3-phosphate dehydrogenase and other cytosolic enzymes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00415269
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Yeast Saccharomyces cerevisiae selectable markers in pUC18 polylinkers (1990)
    New York, NY [u.a.] : Wiley-Blackwell
    Yeast 6 (1990), S. 363-366 
    Details
    ISSN: 0749-503X
    Keywords: Saccharomyces cerevisiae ; Selectable markers ; Plasmids ; Life and Medical Sciences ; Genetics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology
    Notes: A set of plasmids was constructed that contain the yeast selectable markers HIS3, LEU2, TRP1 or URA3 embedded in the multiple cloning site of pUC18.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/yea.320060502
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  • 4
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    Retrograde, charnockite- gneiss relations in Southern India (1988)
    In:  CASI
    Details
    Publication Date: 2013-08-31
    Description: The high-pressure charnockites (P = 8 to 9 Kb., T = 700 to 800 C CO2-rich fluid regime) of the Nilgiri hills show evidence of retrogression related to shear deformation within the Moyar and Bhavani shear belts. Two types of retrogression have been noticed: (1) retrogression along shear planes, and (2) retrogression along pegmatitic veins. Initial stages of retrogression results in the formation of irregular, 2 to 3 cm to one meter wide bleached zones with the removal of greasy grey color of charnockites. Minor structures which were earlier obscured in charnockites are clearly seen in bleached areas. In intensely shear areas, formation of highly fissile grey gneiss results often with the development of flaser and mylonitic structures. Fluid inclusion studies and geochemical investigations carried out for serial samples collected from charnockite to gneiss indicate following features: (1) there is a gradual decrease in density of CO2-rich fluids from 1.073 to 0.821 g/cu cm; (2) interestingly, in many sections of the gneisses studied, there is almost complete absence of fluid inclusions suggesting that they would have decrepitated (this may be due to large pressure difference (2 to 3 Kb.) created between the interior and exterior of the fluid inclusions); and (3) presence of mixed CO2-H2O inclusions were noticed.
    Keywords: GEOPHYSICS
    Type: Lunar and Planetary Inst., Workshop on the Deep Continental Crust of South India; p 170-172
    Format: application/pdf
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  • 5
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    Modified cubic convolution resampling for Landsat (1985)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: An overview is given of Landsat Thematic Mapper resampling technique, including a modification of the well-known cubic convolution interpolator (nearest neighbor interpolation) used to provide geometric correction for TM data. Post launch study has shown that the modified cubic convolution interpolator can selectively enhance or suppress frequency bands in the output image. This selectivity is demonstrated on TM Band 3 imagery.
    Keywords: GEOPHYSICS
    Format: text
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    NASA TECHNICAL REPORTS
  • 6
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    Resistivity due to weak double layers - A model for auroral arc thickness (1992)
    In:  Other Sources
    Details
    Publication Date: 2019-08-28
    Description: We have calculated the resistivity due to a sequence of fluctuating weak double layers aligned parallel to the ambient magnetic field line. The average response of an electron drifting through a 1D randomly oriented array of WDLs is studied using a test particle approach. The average is taken over the randomly fluctuating values of the electric field associated with the double layers. Based on our calculations, we estimate that a 350 eV electron energy the thickness of the visual auroral arc is about 2.5 km and that of the auroral fine structure as about 250 m when mapped down to the ionosphere. The significance of our calculations is discussed in the context of magnetosphere-ionosphere coupling.
    Keywords: GEOPHYSICS
    Type: Geophysical Research Letters (ISSN 0094-8276); 19; 21; p. 2159-2162.
    Format: text
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