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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Protoplasma 75 (1972), S. 205-213 
    ISSN: 1615-6102
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The earliest stage in the development of black pine seedlings have been viewed and assayed in the present correlative study, resulting in a morphological and biochemical description of several forms of plastids. With the exception of ungerminated embryo cotyledons, the plastids are recognized in five stages of seedling development. They progress from proplastids containing protochlorophyll which are located among protein and lipid bodies to the chlorophyll containing chloroplasts with well developed grana. The differentiation period was between the first and the forth day, when active metabolism started.
    Type of Medium: Electronic Resource
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