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Pectolytic enzyme production by Fusarium oxysporum f. sp. lycopersici

Creator:: Baldwin, Charles Harry
Abstract:: This investigation was undertaken to determine 1) the effects of various carbon sources in defined media on pectolytic enzyme production, 2) the effect of the incubation period on pectolytic enzyme activity, and 3) the development of improved methods for the purification and characterization of the polygalacturonases (PG) produced by Fusarium...
Resource Type:: Dissertation
Full Text:: to Dr. Malcolm E. Corden for this opportunity to continue my education and for his guidance and

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:: IN TOMATO Abstract approved: ,Redacted for privacy Malcolm E. Corden Bioassays of acetone extracts

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:: Redacted for PrivacyAbstract approved: Dr. Malcolm E. Corden This study was undertaken to determine the

Fungitoxicity of sodium n-methyldithio-carbamate (Vapam) and its decomposition products

Creator:: Elson, Joseph Earl
Abstract:: An assay for fungicidal activity of sodium N-methyldithiocarbamate (Na-MDC) and its decomposition products was developed in which there was a minimum influence due to the widely varying physical properties of the compounds (i.e. vapor pressure and water solubility). Decomposition of the toxicant during the tests was measured and held to...
Resource Type:: Masters Thesis
Full Text:: ACKNOWLEDGMENTS I wish to express my appreciation to Dr. Malcolm E. Corden for his counsel, patience, and

Production and characterization of antifungal compounds produced by tomato plants inoculated with Fusarium oxysporum f. sp. lycopersici

Creator:: Danko, Stephen John
Abstract:: The fungitoxicity of acetone extracts from the xylem of Fusarium wilt disease resistant tomato plants (cv. Jefferson) inoculated with Fusarium oxysporum f. sp. lycopersici was greatly influenced by environmental factors. Extracts obtained from plants 1 h after watering were 4-times more toxic than extracts from plants subjected to water stress...
Resource Type:: Dissertation
Full Text:: Privacy Malcolm E. Corden The fungitoxicity of acetone extracts from the xylem of Fusarium wilt disease

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

Fungitoxicity of silver salts

Creator:: Guilford, Roger Kirby
Abstract:: The demand for new fungicides to control plant diseases has led to experimentation with both previously used and newly developed fungicides. Silver, an older but little used fungicide, was selected for evaluation because of its high toxicity to microorganisms. Silver nitrate and a silver electrolytic cell were tested as potential...
Resource Type:: Masters Thesis
Full Text:: gratitude to Dr. Malcolm E. Corden and Dr. Roy A. Young for their guidance and encouragement offered

Establishment of Poria carbonica in wood and colonization by basidiomycetes of Douglas-fir utility poles during air seasoning

Creator:: Przybylowicz, Paul
Abstract:: Influence of temperature and wood moisture content on spore germination and colonization of Douglas-fir (Pseudotsuga jnenziesii) heartwood by Poria carbonica basidiospores and chlamydospores was studied. Both spore types germinated and colonized wood at moisture contents above the fiber saturation point, but not below. Germination and wood colonization occurred at 22°C...
Resource Type:: Dissertation
Full Text:: Douglas-fir Utility Poles During Air Seasoning Abstract approved: Redacted for privacy M. E. Corden

Characterization of pectic enzymes produced by Fusarium oxysporum f. lycopersici

Creator:: Young, Robert J.
Resource Type:: Dissertation
Full Text:: sincere appreciation to Dr. Malcolm E. Corden for his counsel, encouragement and constructive criticism

Decomposition of sodium n-methyl dithiocarbamate, vapam, in soil

Creator:: Turner, Nathan Joe
Resource Type:: Dissertation
Full Text:: Lawson i ACKNOWLEDGMENT I would like to thank Dr. M. E. Corden for helpful assistance rendered

ScholarsArchive@OSU

Pectolytic enzyme production by Fusarium oxysporum f. sp. lycopersici

The nature of Fusarium wilt disease resistance in tomato

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

Fungitoxicity of sodium n-methyldithio-carbamate (Vapam) and its decomposition products

Production and characterization of antifungal compounds produced by tomato plants inoculated with Fusarium oxysporum f. sp. lycopersici

Degradation of phenolic components of Douglas-fir bark by fungi

Fungitoxicity of silver salts

Establishment of Poria carbonica in wood and colonization by basidiomycetes of Douglas-fir utility poles during air seasoning

Characterization of pectic enzymes produced by Fusarium oxysporum f. lycopersici

Decomposition of sodium n-methyl dithiocarbamate, vapam, in soil

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