Index Catalog // ScholarsArchive@OSU

Vegetative ecology of a montane mire, Crater Lake National Park, Oregon

Creator:: Seyer, Susan C.
Resource Type:: Masters Thesis
Full Text:: : VEGETATIVE ECOLOGY OF A MONTANE MIRE, CRATER LAKE NATIONAL PARK, OREGON Abstract approved: Jerry F

The effects of a mutation within vitamin E biosynthesis upon the development and function of the photosynthetic apparatus

Creator:: Sicher, Richard Charles
Abstract:: A new photosystem-II mutant of the green alga Scenedesmus obliquus D₃, strain PS-28, has been shown to lack a-tocopherol (vitamin E). The photosynthetic activity of dark grown samples of PS-28 is about 20% of the wild-type control. Culturing the mutant at low light intentisites (10⁴ ergs/sec-cm ²) stimulates photosynthetic activity...
Resource Type:: Dissertation
Full Text:: appreciation is extended to Drs. Harold Evans, Don Reed, Irvin Isenberg, and B. J. Verts for serving on my

Investigation of the oxidizing side of photosystem II through mutant analysis

Creator:: Metz, James George
Resource Type:: Dissertation
Full Text:: cytochrome b-559 but not of total b-type cytochromes or cytochrome f. The mutant LF-2 is shown to be

The effects of ultraviolet irradiation on the photosynthetic apparatus

Creator:: Mantai, Kenneth Edward
Abstract:: The effects of ultraviolet (UV) irradiation on photosynthesis and various partial reactions involving the individual photoreactions of photosynthesis were examined. These reactions included photo-reduction in adapted green algae, Hill reaction, cyclic photophosphorylation, the 520 nm absorbance change and variable-yield fluorescence. The reactions were measured in spinach chloroplasts and isolated chloroplasts...
Resource Type:: Dissertation
Full Text:: Botany and Plant Pathology Dean f raduate School Date thesis is presented May 2, 1968 Typed by Opal

Salt marsh reestablishment following dike breaching in the Salmon River estuary, Oregon

Creator:: Mitchell, Diane Lynne
Abstract:: A 22 ha, 1S yeas old, diked permanent pasture in the Salmon River estuary in Lincoln County, Oregon, was chosen for a study to determine the potential for natural salt marsh restoration with dike breaching. Two undiked fragments of relatively undisturbed salt marsh, one at each end of the study...
Resource Type:: Dissertation
Full Text:: Approved: '? - 4&4,u Jerry F. Franklin A 22 ha, 1S yeas old, diked permanent pasture in the Salmon River

Dry coniferous forests in the Western Oregon Cascades

Creator:: Means, Joseph E.
Abstract:: Pseudotsuga menziesii dominates the forests of the Pacific Northwest. But though it is dominat, Tsuaa heteroohylla or Abies amabilis is usually climax. Many researchers have studied Pseudotsuga on the widespread mesic sites where it is seral, but few have examined the relatively rare ecosystems in which Pseudotsuga or its associate...
Resource Type:: Dissertation
Full Text:: OREGON CASCADES Abstract approved: Redacted for Privacy Jerry F. Pseudotsuca menziesii dominates the

Some properties of ribonucleotide reductase in Rhizobium species

Creator:: Cowles, Joe Richard, 1941-
Abstract:: Ribonucleotide reductase from Rhizobium meliloti has been partially purified and characterized. The enzymatic reduction of ribonucleotides to deoxyribonucleotides is dependent upon B₁₂ coenzyme and dihydrolipoate. B₁₂ coenzyme was more effective than B₁₂ coenzyme analogues in the reductase reaction. The affinity of the R. meliloti reductase system for B₁₂ coenzyme was...
Resource Type:: Dissertation
Full Text:: J. Reed, Leo W. Parks, and Ronald H. Alvarado, members of my graduate commit- tee, for their

Purification and properties of a ferredoxin from Rhizobium japonicum bacteroids

Creator:: Carter, Kevin Richard
Resource Type:: Dissertation
Full Text:: during this investigation. I also thank Drs. Donald J. Reed, Kensal E. VanHolde, Donald J. Armstrong and

Integration of Evolutionary Theory and Genomics to Understand Processes Involved in Host Adaptation and Divergence in Phytophthora Plant Pathogens

Creator:: Tabima, Javier F.
Abstract:: Modern plant pathology benefits from integrating methods and concepts from evolutionary biology. For example, evolutionary concepts are used to identify and examine species boundaries of plant pathogens, recognize processes underlying pathogen biogeography, identify traits that characterize emerging species, and discover new molecular interactions that originate under processes of selection. In...
Resource Type:: Dissertation
Full Text:: that. All of what I am, is for You CONTRIBUTION OF AUTHORS Chapter 2: Javier F

Physiology of senescence of the shoot apex in Pisum sativum L.

Creator:: Ecklund, Paul Richard, 1941-
Abstract:: Shoot apex senescence is defined as the collective progressive and deteriorative processes which ultimately terminate the functional life of the shoot apex. Senescence of shoot apices of Pisum sativum L. 'Alaska' as measured by cessation of stem elongation was delayed by removal of flowers and by treatment with gibberellin A₃...
Resource Type:: Dissertation
Full Text:: thesis is presented August 2, 1968 Typed by Marion F. Palmateer for Paul Richard Ecklund 7

ScholarsArchive@OSU

Vegetative ecology of a montane mire, Crater Lake National Park, Oregon

The effects of a mutation within vitamin E biosynthesis upon the development and function of the photosynthetic apparatus

Investigation of the oxidizing side of photosystem II through mutant analysis

The effects of ultraviolet irradiation on the photosynthetic apparatus

Salt marsh reestablishment following dike breaching in the Salmon River estuary, Oregon

Dry coniferous forests in the Western Oregon Cascades

Some properties of ribonucleotide reductase in Rhizobium species

Purification and properties of a ferredoxin from Rhizobium japonicum bacteroids

Integration of Evolutionary Theory and Genomics to Understand Processes Involved in Host Adaptation and Divergence in Phytophthora Plant Pathogens

Physiology of senescence of the shoot apex in Pisum sativum L.

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