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  • 1
    Electronic Resource
    Electronic Resource
    A biochemical model of photosynthetic CO2 assimilation in leaves of C3 species (1980)
    Springer
    Planta 149 (1980), S. 78-90 
    Details
    ISSN: 1432-2048
    Keywords: Electron transport ; Leaf model ; Light and CO2 assimilation ; Ribulose bisphosphate carboxylase-oxygenase ; Temperature ; Photosynthesis (C3)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Various aspects of the biochemistry of photosynthetic carbon assimilation in C3 plants are integrated into a form compatible with studies of gas exchange in leaves. These aspects include the kinetic properties of ribulose bisphosphate carboxylase-oxygenase; the requirements of the photosynthetic carbon reduction and photorespiratory carbon oxidation cycles for reduced pyridine nucleotides; the dependence of electron transport on photon flux and the presence of a temperature dependent upper limit to electron transport. The measurements of gas exchange with which the model outputs may be compared include those of the temperature and partial pressure of CO2(p(CO2)) dependencies of quantum yield, the variation of compensation point with temperature and partial pressure of O2(p(O2)), the dependence of net CO2 assimilation rate on p(CO2) and irradiance, and the influence of p(CO2) and irradiance on the temperature dependence of assimilation rate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00386231
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Mechanisms of CO2 fixation in bacterial photosynthesis studied by the carbon isotope fractionation technique (1977)
    Springer
    Archives of microbiology 112 (1977), S. 35-38 
    Details
    ISSN: 1432-072X
    Keywords: Photosynthetic bacteria ; Carbon isotope ratio ; CO2 fixation ; Chlorobium thiosulfatophilum ; Rhodospirillum rubrum ; Chlamydomonas reinhardii ; Chromatium
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract 1. The carbon isotope discrimination properties of a representative of each of the three types of photosynthetic bacteria Chlorobium thiosulfatophilum, Rhodospirillum rubrum and Chromatium and of the C3-alga Chlamydomonas reinhardii were determined by measuring the ratio of 13CO2 to 12CO2 incorporated during photoautotrophic growth. 2. Chromatium and R. rubrum had isotope selection properties similar to those of C3-plants, whereas Chlorobium was significantly different. 3. The results suggest that Chromatium and R. rubrum assimilate CO2 mainly via ribulose 1,5-diphosphate carboxylase and the associated reactions of the reductive pentose phosphate cycle, whereas Chlorobium utilizes other mechanisms. Such mechanisms would include the ferredoxin-linked carboxylation enzymes and associated reactions of the reductive carboxylic acid cycle.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00446651
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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