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Copper tolerance in four fungal species

Creator:: Grable, Carl Ivan
Abstract:: This study was initiated to determine the tolerance to copper of Aspergillus niger, Stemphylium sarcinaeforme, Monilinia fructicola and Fusarium oxysporum f. sp. lycopersici. Included were strains of the latter two fungi that were induced to tolerate relatively high levels of copper by continual culture on sublethal levels of the toxicant....
Resource Type:: Dissertation
Full Text:: Privacy M. E. Corden This study was initiated to determine the tolerance to copper of Aspergillus niger

The influence of sulfur and carbohydrate nutrition of Fusarium oxysporum f. sp. lycopersici on resistance to methylisothiocyanate

Creator:: Cobb, William Thompson
Resource Type:: Dissertation
Full Text:: approved: M. E. Corden Sulfur nutrition markedly affected the susceptibility of F. oxy- sporum f. sE

Characterization of two endopolygalacturonase isozymes produced by Fusarium oxysporum f. sp. lycopersici

Creator:: Strand, Larry L.
Abstract:: Polygalacturonase produced by Fusarium oxysporum f. sp. lycopersici was purified by chromatography on DEAE cellulose, CM cellulose, and hydroxylapatite. Removal of large amounts of carbohydrate by chromatography on hydroxylapatite did not affect heat stability of the enzyme. A large proportion of the remaining carbohydrate appeared to be covalently linked to...
Resource Type:: Dissertation
Full Text:: analyses, and Drs. M. E. Corden, D. L. MacDonald, R. R. Becker, and other members of the Departments of

The nature of Fusarium wilt disease resistance in tomato

Creator:: Stromberg, Erik Leslie
Abstract:: Bioassays of acetone extracts from xylem tissue in tomato stems and corresponding reductions in Fusarium oxysporum f.sp. lycopersici race 1 or 2 populations within the stems suggest that fungitoxic materials within the xylem vessels of Bonny Best, Jefferson, and Marglobe tomato cultivars initially kill a portion of the inoculum conidia....
Resource Type:: Dissertation
Full Text:: sincere thanks to my major professor, Dr. M. E. Corden, for his counsel and contructive criticism during

Degradation of phenolic components of Douglas-fir bark by fungi

Creator:: Ross, William David, 1937-
Resource Type:: Dissertation
Full Text:: ACKNOWLE DEMENTS I wish to express my sincere appreciation to Dr. Malcolm E. Corden for his encouragement

An examination of the Clarno Formation in the vicinity of the Mitchell Fault, Lawson Mountain and Stephenson Mountain Area, Jefferson and Wheeler Counties, Oregon

Creator:: Owen, Philip C.
Resource Type:: Masters Thesis

Mineralogical and chemical characteristics of western Oregon Andic soils

Creator:: Franklin, William Talbert
Abstract:: A study was conducted to determine the mineralogy and chemical properties of "Ando-like" western Oregon soils. The samples were collected from 13 sites which formed mainly from basaltic rocks, a contact metamorphic rock, sedimentary rocks, and alluvium derived from sedimentary rock and from volcanic rock. All samples contained small amounts...
Resource Type:: Dissertation
Full Text:: times, Drs. M. E. Harward, E. G. Knox, G. H. Simonson, H. En lows, R. A. Peekama, and E. Piepmeir

Cation retention and solute transport related to porosity of pumiceous soils

Creator:: Doak, William Herman, 1941-
Abstract:: Previous studies of pumiceous soils in Oregon indicated that their physical and chemical properties were strongly related to the porous nature of the pumice matrix. Soils developed on air-fall pumice from the eruption of Mt. Mazama (Crater Lake, Oregon) had low thermal conductivities and low volumetric heat capacities. Values for...
Resource Type:: Dissertation
Full Text:: RELATED TO POROSITY OF PUMICEOUS SOILS Redacted for Privacy Abstract approved: M. E. Harward Previous

The nature and properties of amorphous colloids formed from Mazama tephra

Creator:: Dingus, Delmar DeLee
Abstract:: Soil samples from the Mazama tephra deposit were collected from the AC and C2 horizons at five different locations along the axis of the main depositional lobe. The clay fraction from the samples was recovered and studied by means of chemical, x-ray, DTA and electron microscopy methods in order to...
Resource Type:: Dissertation
Full Text:: author wishes to express his appreciation to Dr. M. E. Harward who has given generously of his time and

Stratigraphy and genesis of soils from volcanic ash in the Blue Mountains of Eastern Oregon

Creator:: Rai, Dhanpat, 1943-
Abstract:: Investigations were conducted to (1) determine the original pattern of deposition and thickness of ash in the Ochoco and Blue Mountain areas of Oregon, (2) determine if discontinuities exist in the parent material of these soils, (3) determine the degree of mixing of ash with other materials and evaluate reworking...
Resource Type:: Dissertation
Full Text:: Abstract approved: (Dr. M. E. Harward Investigations were conducted to (1) determine the original

ScholarsArchive@OSU

Copper tolerance in four fungal species

The influence of sulfur and carbohydrate nutrition of Fusarium oxysporum f. sp. lycopersici on resistance to methylisothiocyanate

Characterization of two endopolygalacturonase isozymes produced by Fusarium oxysporum f. sp. lycopersici

The nature of Fusarium wilt disease resistance in tomato

Degradation of phenolic components of Douglas-fir bark by fungi

An examination of the Clarno Formation in the vicinity of the Mitchell Fault, Lawson Mountain and Stephenson Mountain Area, Jefferson and Wheeler Counties, Oregon

Mineralogical and chemical characteristics of western Oregon Andic soils

Cation retention and solute transport related to porosity of pumiceous soils

The nature and properties of amorphous colloids formed from Mazama tephra

Stratigraphy and genesis of soils from volcanic ash in the Blue Mountains of Eastern Oregon

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