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Filtering by: Creator Johnson, John Morris

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
Taxonomy and ecology of the vascular plants of Black Butte Oregon

Creator:

Johnson, John Morris

Resource Type:

Masters Thesis