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Filtering by: Creator Kinzell, John Harold Remove constraint Creator: Kinzell, John Harold Committee Member Smith, Frank H. Remove constraint Committee Member: Smith, Frank H. Decade 1960-1969 Remove constraint Decade: 1960-1969

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  • Propionate metabolism and its relationship to leghemoglobin biosynthesis in soybean nodules

    Creator:
    Jackson, Earl Kenneth
    Abstract:
    Experiments are reported which demonstrate that a cobalt deficiency in R. meliloti results in a decreased cytochrome content of bacterial cells. It is concluded that the effect of cobalt deficiency on cytochrome content of Rhizobium cells and on the leghemoglobin content of nodules possibly may be explained by an effect...
    Resource Type:
    Dissertation
    Full Text:
    . Harold J. Evans for suggesting the problem, for helpful advice, and for constructive criticism during

  • 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:
    growing in microcultures AN ABSTRACT OF THE THESIS OF John Morris Johnson for the Ph. D. in Botany

  • The response of tomatoes to atrazine as affected by magnesium and photoperiod

    Creator:
    Brenchley, Ronald Glenn
    Abstract:
    Studies were conducted to determine the nature of the interaction between atrazine (2-chloro-4-ethylamino-6-isopropylaminos- triazine) and magnesium on tomatoes. This interaction was studied under two light regimes: continuous light and a 12-hour photoperiod. Tomato plants were grown in sand cultures at three levels of magnesium fertilization. Four weeks after planting, atrazine...
    Resource Type:
    Dissertation
    Full Text:
    counsel and suggestions with the gas analyzer phase of this research. To Drs. Harold J. Evans and Norman