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  • Cotyledonous etioplasts  (1)
  • Plastid aberrations  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Ultrastructural study of an olive necrotic mutant of maize (1981)
    Springer
    Protoplasma 105 (1981), S. 241-249 
    Details
    ISSN: 1615-6102
    Keywords: Olive necrotic mutants ; Plastid aberrations ; Zea mays
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Ultrastructural surveys, carried out into an olive necrotic maize mutant (Neuffer E 283 B) grown under a 16 hours photoperiod, have shown remarkable morphological alterations in the plastids. Such alterations, affecting both the mesophyll and the bundle sheath plastids, appear to be photodependent. Quite normal etioplasts are present in dark-grown mutant seedlings. Moreover, light appears also to inhibit the overall growth of mutant plants. 12-day-old mutant plants grown under illumination are 4 cm in comparison with the 10 cm of the wild type, while corresponding dark-grown seedlings of both types are 12 cm high.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01279222
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Etioplast-chlotoplast transformation in sunflower cotyledons (1979)
    Springer
    Protoplasma 100 (1979), S. 45-52 
    Details
    ISSN: 1615-6102
    Keywords: Cotyledonous etioplasts ; Etioplast-chloroplast transformation ; Helianthus annuus L. ; Lightly stained membranes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The etioplast-chloroplast transformation has been followed in sunflower cotyledons. After few days of dark growth these contained etioplasts, whose internal membranes appeared to be of the LS (Lightly Stained) type. The ultrastructural changes occurred in the usual way but the involved membranes remained of the LS type until the formation of wellorganized chloroplasts. Only at a subsequent stage the thylakoid membranes changed their staining showing a strong contrast. As regards the chlorophyll synthesis, after an early lag phase it increased at the same time as the formation of thylakoids. The above confirms the chloroplast ontogenetic model previously proposed for sunflower grown under natural conditions and strengthens the assumption of ours that the insertion of chlorophyllous pigments can already take place in the LS-membranes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01276300
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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