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Filtering by: Creator Krueger, William C. (William Clement), 1942- Remove constraint Creator: Krueger, William C. (William Clement), 1942- Decade 1960-1969 Remove constraint Decade: 1960-1969 Subject Cell nuclei Remove constraint Subject: Cell nuclei

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  • Contracting nucleolar vacuoles in somatic tobacco cells growing in microcultures

    Creator:
    Johnson, John Morris
    Abstract:
    Contracting nucleolar vacuoles are a general and consistent feature of somatic tobacco cells growing in microcultures. Nucleolar vacuoles were studied in cells from callus tissues of two single-cell clones, H-196 and H-239, of hybrid tobacco (Nicotiana tabacum X N. glutinosa). Vacuoles periodically contracted either completely or incompletely, apparently releasing a...
    Resource Type:
    Dissertation
    Full Text:
    Cha' man of epart- ent of Botany can o ra ua e c oo e ACKNOWLEDGMENTS The writer wishes to