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  • Differential DNA synthesis  (1)
  • Microcycle conidiation  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Heat-induced changes in respiratory pathways and mitochondrial structure during microcycle conidiation of Neurospora crassa (1980)
    Springer
    Archives of microbiology 125 (1980), S. 53-58 
    Details
    ISSN: 1432-072X
    Keywords: Neurospora crassa ; Microcycle conidiation ; Heat-treatment ; Cyanide-sensitive and insensitive respirations ; Mitochondrial structure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Changes in both respiratory pathways and mitochondrial structure of Neurospora crassa occurred under conditions of microcycle conidiation. Upon heat-treatment at 46°C, conidia developed a highly cyanide-insensitive, hydroxamate-sensitive respiration associated with morphological alterations in mitochondrial membranes; such changes were time-dependent. When heat-treated conidia were shifted down to 25°C, the alternate, hydroxamate-sensitive respiration decreased significantly, paralleling the recovery of well-cristated mitochondria with an electron-dense matrix in the germ tubes. The decrease in hydroxamate-sensitivity was associated with two periods of increase in cyanide sensitivity corresponding to the events of germination and precocious proconidial budding.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00403197
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Differential deoxyribonucleic acid synthesis during microcycle conidiation in Neurospora crassa (1978)
    Springer
    Archives of microbiology 119 (1978), S. 257-261 
    Details
    ISSN: 1432-072X
    Keywords: Neurospora crassa ; Macroconidiation ; Microcycle ; Heat-shock ; Differential DNA synthesis ; Nuclei ; Inhibitors of DNA synthesis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract In conidia of Neurospora crassa germinating at 25°C, DNA synthesis measured by incorporation of tritiated adenosine reaches a maximum soon after the outgrowth of the germ tube (6–7h after inoculation). In conidia heat-treated at 46°C (for 15h), a maximum of incorporation of the DNA precursor occurs already 1h after inoculation, then the incorporation progressively declines until the end of the heat-shock. When such conidia are shifted to 25°C, a maximum of DNA synthesis occurs during the development of the presumptive conidiophore as at the outgrowth of normal germ tubes. This wave of DNA synthesis is followed by a second maximum of DNA synthesis, occurring only in the microcyclized cultures, when the premature differentiation of proconidia takes place. Prevention of this second wave of DNA synthesis with hydroxyurea or 5-fluorodeoxyuridine respectively reduces or fully inhibits such induced conidial differentiation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00405404
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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