Index Catalog // ScholarsArchive@OSU

Characterization, epidemiology, and ecology of a virus associated with black raspberry decline

Creator:: Halgren, Anne B.
Abstract:: The objective of this study was to characterize an unknown agent associated with decline in black raspberry (Rubus occidentalis) in Oregon. A virus was found consistently associated with decline symptoms of black raspberries and was named Black raspberry decline associated virus (BRDaV). Double stranded RNA extraction from BRDaV-infected black raspberry...
Resource Type:: Dissertation
Full Text:: : Characterization, Epidemiology, and Ecology of a Virus Associated with Black Raspberry Decline. Abstract .aprud

Investigations of Black Leg and Light Leaf Spot on Brassicaceae Hosts in Oregon

Creator:: Claassen, Briana J.
Abstract:: The Pacific Northwest is an internationally important region for the production of Brassica seed and other seed crops including grass seed. Oregon lawmakers mandated research into the co-existence of canola (Brassica napus) with other Brassica production in the Willamette Valley and House Bill 2427 was signed into law in 2013,...
Resource Type:: Masters Thesis
Full Text:: November 10, 2016. Title: Investigations of Black Leg and Light Leaf Spot on Brassicaceae Hosts in

Hybridization between Castilleja levisecta and C. hispida : Implications for Pacific Northwest Prairie Management

Creator:: Sandlin, Isaac J., III
Abstract:: Conservation conflicts may develop on restoration sites with multiple species recovery objectives. For example, on Pacific Northwest prairies, the co-planting of the diploid cytotype of the common native wildflower Castilleja hispida with the endangered wildflower C. levisecta has resulted in putative Castilleja hybrids on restoration sites, prompting fears that genetic...
Resource Type:: Masters Thesis
Full Text:: March 15, 2018. Title: Hybridization between Castilleja levisecta and C. hispida: Implications for

Science Takes Flight: Detection of Black Leg on Turnip Gray Mold on Hemp

Creator:: Bates, Taylor A.
Abstract:: Disease detection through traditional techniques such as scouting fields on foot, molecular assays, or morphological identification of plant pathogens is time consuming and costly. Disease diagnosis in the field can be extremely subjective, and largely depends on the experience and knowledge of pathogen identification and disease quantification. This thesis provides...
Resource Type:: Masters Thesis
Full Text:: black leg. Around 8 to 72 hours of leaf wetness duration and 8 to 24°C can lead to leaf spot

Calochortus howellii : ecology of a rare serpentine endemic, and comparison with the new species, C. umpquaensis (Liliaceae)

Creator:: Fredricks, Nancy Ann
Resource Type:: Masters Thesis
Full Text:: endemic, and comparison with the new species, C. umpquaensis (Liliaceae) AN ABSTRACT OF THE THESIS OF

Production of polygalacturonase and macerating enzymes by Phoma menthae

Creator:: Melouk, Hassan Aly
Abstract:: The fungus Phoma menthae Strasser causes black lesions and cankers on stems and rhizomes of Mentha piperita L. The purpose of this thesis was to: 1) study the production of polygalacturonase (PG) and macerating enzymes (ME) by P. menthae in vivo and in vitro, 2) study the effects of phenolic...
Resource Type:: Dissertation
Full Text:: MACERATING ENZYMES BY PHOMA MENTHAE Abstract approved: Redacted for Privacy C. E. Horner The fungus Phoma

Genomic Resources for Phylogenetics, Species Delimitation, and Geographic Localization of Neotropical Tree Species Cedrela odorata L. (Meliaceae)

Creator:: Finch, Kristen N.
Abstract:: Biodiversity loss is of global concern, and is due in part to deforestation and high consumer demand for wood and wood products. The neotropical tree species Cedrela odorata (“Spanish cedar” or “cedro”) is economically valuable for its wood and faces threats of overexploitation. Due to strong similarities in wood features...
Resource Type:: Dissertation
Full Text:: for C. odorata in trade. This pressure is expected to make these species more vulnerable if current

Photoinduction of kaurene synthetase, an enzyme of the gibberellin biosynthetic pathway, during de-etiolation of pea seedlings

Creator:: Gomez-Navarrete, Gladys
Abstract:: Previous investigations have shown that the enzymes catalyzing the biosynthesis of the gibberellin-type of hormones from mevalonic acid in plants are compartmentalized in plastids. Moreover, the activity of one of the key enzymes in the biosynthetic sequence, kaurene synthetase, exhibits markedly enhanced activity when a dark-grown pea seedling undergoes de-etiolation...
Resource Type:: Masters Thesis
Full Text:: DE-ETIOLATION OF PEA SEEDLINGS Abstract approved: Redacted for Privacy Thomas C. Moore Previous

The distribution of intertidal diatoms associated with the sediments of Yaquina Estuary, Oregon

Creator:: Amspoker, Michael C.
Abstract:: Sediment samples were collected from eight sampling sites along the Yaquina Estuary, Oregon from Yaquina Bay to Elk City near the head of the estuary. Samples were collected in November 1973, February 1974, May 1974 and August 1974 from two or three intertidal levels depending on the magnitude of the...
Resource Type:: Dissertation
Full Text:: black crucible. This crucible was burned for two hours at 500°C to destroy the organic carbon. The

Purification and partial characterization of a virus associated with korogwe leaf spot disease of sisal

Creator:: Mpunami, Anatolia
Abstract:: Sisal Wave sisalana Perrine), one of Tanzania's main cashcrops, is severely affected by korogwe leaf spot disease (KLS).Infected plants show chocolate brown, concentric, scablike eruptions on both surfaces of mature leaves, and produce stained, low-quality fiber. A flexuous, rod-shaped virus was isolated from KLS-infected sisal leaves and studied at Oregon...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: Redacted forPriv 56y Thomas C. Allen Sisal Wave sisalana Perrine), one of Tanzania's

ScholarsArchive@OSU

Characterization, epidemiology, and ecology of a virus associated with black raspberry decline

Investigations of Black Leg and Light Leaf Spot on Brassicaceae Hosts in Oregon

Hybridization between Castilleja levisecta and C. hispida : Implications for Pacific Northwest Prairie Management

Science Takes Flight: Detection of Black Leg on Turnip Gray Mold on Hemp

Calochortus howellii : ecology of a rare serpentine endemic, and comparison with the new species, C. umpquaensis (Liliaceae)

Production of polygalacturonase and macerating enzymes by Phoma menthae

Genomic Resources for Phylogenetics, Species Delimitation, and Geographic Localization of Neotropical Tree Species Cedrela odorata L. (Meliaceae)

Photoinduction of kaurene synthetase, an enzyme of the gibberellin biosynthetic pathway, during de-etiolation of pea seedlings

The distribution of intertidal diatoms associated with the sediments of Yaquina Estuary, Oregon

Purification and partial characterization of a virus associated with korogwe leaf spot disease of sisal

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