Index Catalog // ScholarsArchive@OSU

Factors affecting inter-tree root contact and the transmission of Phellinus weirii in young-growth Douglas-fir

Creator:: Reynolds, Keith M.
Abstract:: Groups of second-growth Douglas-fir (Mirb.) Franco were excavated in plots of two to six trees on two sites in the vicinity of Cowichan Lake, Vancouver Is., British Columbia. Eleven excavation plots provided 36 trees which could be studied in pairs (a total of 50 pairs) in order to ascertain the...
Resource Type:: Masters Thesis
Full Text:: Reynolds for the degree of Master of Science in Botany and Plant Pathology (Forest Pathology) on December

The use of flowering crab apples for the detection of latent viruses in apples

Creator:: Reynolds, James Edward
Abstract:: Recent investigations indicate that several latent viruses of apples exist in common commercial apple stocks, but these viruses and their relationships are incompletely understood. This thesis describes investigations of crab apples as indicators of latent viruses of apples. Eighty-eight varieties and species of crab apples were tested as indicators of...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF JAMES EDWARD REYNOLDS for --tNa'.El- THE

Serological and biological characterization of seed-borne isolates of blackeye cowpea mosaic and cowpea aphid-borne mosaic potyviruses in Vigna unguiculata (L.) Walp

Creator:: Bashir, Muhammad
Resource Type:: Dissertation
Full Text:: laboratory and greenhouse facilities. I am also grateful to the faculty members Dr. J. R. Baggett, Dr. W

Plant communities of the grassy balds of Marys Peak, Oregon

Creator:: Snow, Billy Douglas
Resource Type:: Masters Thesis
Full Text:: like to extend a special thanks to Dr. Richard Hermann for his presence on my coimiittee and his

Taxonomy of Phacelia section Miltitzia (hydrophyllaceae)

Creator:: Halse, Richard R.
Abstract:: A systematic study was made of the species comprising Phacelia section Miltitzia. These species, which are commonly found in the Great Basin physiographic province of western North America, are distinguished from other members of Phacelia by their yellow, marcescent corollas and their transversely corrugated seeds. This project utilized morphological, cytological,...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF RICHARD R. HALSE for the degree of

The identity, biological and molecular characteristics and serology of carlaviruses infectious to peas in the Pacific Northwest

Creator:: Weber, Kenneth Alan
Resource Type:: Dissertation
Full Text:: ACKNOWLEDGEMENTS I wish to express special thanks to Dr. Richard 0. Hampton for his friendship, guidance, and

Occurrence, transmission, and properties of strains of cucumber mosaic virus that are seed-transmitted in Phaseolus vulgaris

Creator:: Davis, Robert Francis
Abstract:: A survey of major bean (Phaseolus vulgaris) breeding programs and seed producing areas in Idaho, Washington, and Oregon was conducted to determine the occurrence of cucumber mosaic virus (CMV), recently reported to be seedborne in beans. Some 259 plants, sampled from breeding lines of diverse germplasm, were found by enzyme-linked...
Resource Type:: Dissertation
Full Text:: . Richard 0!Hampton A survey of major bean (Phaseolus vulgaris) breeding programs and seed producing areas

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:: species AN ABSTRACT OF THE THESIS OF JOE RICHARD COWLES (Name) BOTANY in (PLANT PHYSIOLOGY) (Major

Symbiosis in the Pacific Ring of Fire : evolutionary-biology of Rhizopogon subgenus Villosuli as mutualists of Pseudotsuga

Creator:: Mujic, Alija Bajro
Abstract:: Rhizopogon is a large genus of ectomycorrhizal (EM) fungi that grows in association with host trees of the family Pinaceae. We have conducted a series of studies investigating the ecology and evolutionary biology of the EM symbiosis shared between R. subgenus Villosuli and trees of the genus Pseudotsuga. Two members...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ Joseph W. Spatafora Rhizopogon is a large genus of ectomycorrhizal (EM) fungi that grows in

Fungal Secondary Metabolism of Basidiobolus meristosporus: a Novel Natural Product Reservoir

Creator:: Trautman, Ian A.
Abstract:: Secondary metabolites (SMs) play an integral role in the life history of most fungal species. Fungal metabolomic studies provide insights into how fungi perform certain ecological functions, how they compete and interact with other organisms, and the breadth of fungal chemodiversity. Fungal SMs have also been utilized for a variety...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: __________________________________________________ Joseph W. Spatafora Secondary

ScholarsArchive@OSU

Factors affecting inter-tree root contact and the transmission of Phellinus weirii in young-growth Douglas-fir

The use of flowering crab apples for the detection of latent viruses in apples

Serological and biological characterization of seed-borne isolates of blackeye cowpea mosaic and cowpea aphid-borne mosaic potyviruses in Vigna unguiculata (L.) Walp

Plant communities of the grassy balds of Marys Peak, Oregon

Taxonomy of Phacelia section Miltitzia (hydrophyllaceae)

The identity, biological and molecular characteristics and serology of carlaviruses infectious to peas in the Pacific Northwest

Occurrence, transmission, and properties of strains of cucumber mosaic virus that are seed-transmitted in Phaseolus vulgaris

Some properties of ribonucleotide reductase in Rhizobium species

Symbiosis in the Pacific Ring of Fire : evolutionary-biology of Rhizopogon subgenus Villosuli as mutualists of Pseudotsuga

Fungal Secondary Metabolism of Basidiobolus meristosporus: a Novel Natural Product Reservoir

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