Index Catalog // ScholarsArchive@OSU

Spinach peroxidase and the photo-oxidation of manganese by isolated chloroplasts

Creator:: McKenna, John Michael
Abstract:: Manganese has been known to be essential for photosynthesis for almost 30 years. Subsequent experimentation indicated a definite function for manganese in oxygen evolution. However, the mode of action of manganese and further localization of its site of action have not been determined. Ten years ago it was demonstrated that...
Resource Type:: Masters Thesis
Full Text:: by isolated chloroplasts John AN ABSTRACT OF THE THESIS OF Michael McKenna for the Master of

Requirement for the growth and maintenance of Alphanizomenon flos-aquae in culture

Creator:: O'Flaherty, Larrance Michael
Abstract:: Aphanizomenon flos-aquae from Upper Klamath Lake, Oregon was introduced into culture in a precipitate -free medium developed by modification of McLachlan's ASM medium. This medium ASMT No. 8 contained no organic substances other than ethylendiaminetetraacetate (EDTA) and Trishydroxymethylamino methane (Tris), and was developed by modifying the concentrations of certain elements,...
Resource Type:: Masters Thesis
Full Text:: Aphanizomenon flos-aquae in culture AN ABSTRACT OF THE THESIS OF Larrance Michael O'Flaherty for the M. A

Growth of Aphanizomenon flos-aquae in defined media

Creator:: O'Flaherty, Larrance Michael Arthur, 1941-
Abstract:: A strain of Aphanizomenon flos-aquae Born. et Flah. has been introduced into culture and maintained since August of 1964 in completely defined media. It exhibits the planktonic, colonial flake form found in nature, and both heterocysts and akinetes are present. The color and size of the flake and general appearance...
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE THESIS OF Larrance Michael O'Flaherty for the Ph. D. (Nar .e of student) in Botany

Characterization of pectic enzymes produced by Fusarium oxysporum f. lycopersici

Creator:: Young, Robert J.
Resource Type:: Dissertation
Full Text:: objective of this study was to separate and characterize the pectic enzymes produced by races R5 -6 and R

Soil moisture depletion trends under five plant species present on the Douglas-fir clear-cuts of Mary's Peak, Oregon

Creator:: Drew, Stephen Ernest
Abstract:: Soil moisture depletion trends under five plant species growing on the clear-cuts of the Marys Peak Watershed near Corvallis, Oregon, were followed during the summers of 1963 and 1964. The species were Holcus lanatus, Lotus crassifolius var. subglaber, Gaultheria shallon, Berberis nervosa, and Acer circinatum; and were dominant plants of...
Resource Type:: Masters Thesis
Full Text:: (Figure 2). E LE C T R IC A L R E S IS T A N C E (O H M S ) N _ O 300,000

Factors influencing the development of onion pink root disease incited by Pyrenochaeta terrestris (Hansen) Gorenz, Walker, Larson

Creator:: Pack, Paul Eugene
Abstract:: A study was conducted of the influence of various climatic and soil factors on the development of onion pink root disease and of the influences of temperature, light, pH, carbon and nitrogen sources, and vitamins on the growth in vitro of an Oregon isolate of the pink root fungus, Pyrenochaeta...
Resource Type:: Masters Thesis
Full Text:: , Pyrenochaeta terrestris (Hansen) Gorenz, Walker, La r son. Eleven onion lines were planted in eastern and

Purification and properties of the polygalacturonases produced by Fusarium oxysporum f. sp. lycopersici

Creator:: Harman, Gary Elvan, 1944-
Abstract:: This study was undertaken to determine the sorts of polygalacturonases present in the culture filtrate of Fusarium oxysporum f. sp. lycopersici, to purify and characterize these enzymes, and to study any complexes that may form between polygalacturonase and carbohydrate not degraded by the enzyme. The polygalacturonase in culture filtrate consists...
Resource Type:: Dissertation
Full Text:: assistance of Drs. R. S. Quatrano and E. J. Trione in the polyacrylamide electrophoresis experiments

Physical factors affecting longevity and germination of seed of Western dwarfmistletoe (Arceuthobium campylopodum Engelm. f. campylopodum)

Creator:: Beckman, Kent Mardsen
Abstract:: Longevity and germination of seed of western dwarfmistletoe (Arceuthobium campylopodum Engelm. f. campylopodum) of ponderosa pine (Pinus ponderosa Laws.) was investigated to determine: 1) the influence of humidity and temperature on seed viability and deterioration during storage; 2) the physiology of seed dormancy; 3) the composition of seed reserve food...
Resource Type:: Dissertation
Full Text:: = endocarp of fruit s = seed which is the projectile ejected from fruit at maturity r = radicle of

Isolation and identification of dahlia viruses

Creator:: Lawson, Roger Harold
Abstract:: Three viruses were isolated from dahlias using a modification of Yarwood's leaf-disc method of inoculation. Two of these isolates have been reported previously in dahlias. In addition, a fourth virus was isolated using a liquid-nitrogen transmission technique. Dahlia virus isolate 1 possessed host range and thermal inactivation properties similar to...
Resource Type:: Dissertation
Full Text:: during the course of this work and in preparation of the manuscript. Thanks are also given to Dr. R. A

Growth and replacement patterns occuring among selected dominant species associated with plant succession on Douglas fir clear-cuts

Creator:: Robinson, Myles Canby
Abstract:: Growth and replacement patterns of four successionally important species occurring on Douglas fir clear-cuts were investigated from September 1964 to June 1967. The study was carried out on the Marys Peak watershed located near Corvallis, Oregon. Species used in the study include Holcus lanatus, Senecio jacobaea, Lotus crassifolius var. subglaber,...
Resource Type:: Dissertation
Full Text:: "ly irnportant species before plant succession of Douglas fir clear-cuts canbe well r,rnderstood

ScholarsArchive@OSU

Spinach peroxidase and the photo-oxidation of manganese by isolated chloroplasts

Requirement for the growth and maintenance of Alphanizomenon flos-aquae in culture

Growth of Aphanizomenon flos-aquae in defined media

Characterization of pectic enzymes produced by Fusarium oxysporum f. lycopersici

Soil moisture depletion trends under five plant species present on the Douglas-fir clear-cuts of Mary's Peak, Oregon

Factors influencing the development of onion pink root disease incited by Pyrenochaeta terrestris (Hansen) Gorenz, Walker, Larson

Purification and properties of the polygalacturonases produced by Fusarium oxysporum f. sp. lycopersici

Physical factors affecting longevity and germination of seed of Western dwarfmistletoe (Arceuthobium campylopodum Engelm. f. campylopodum)

Isolation and identification of dahlia viruses

Growth and replacement patterns occuring among selected dominant species associated with plant succession on Douglas fir clear-cuts

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