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Metabolism of pyrrolizidine alkaloids by ruminal microbes

Creator:: Hovermale, Jeannette Talbot
Abstract:: The plant Senecio jacobaea (tansy ragwort) produces several macrocyclic pyrrolizidine alkaloids which cause irreversible liver cirrhosis. All of the pyrrolizidine alkaloids in Senecio jacobaea are macrocyclic diesters of the necine base retronecine, with the two most predominant being seneciphylline and jacobine. Unlike horses and cattle, sheep and goats are generally...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Jeannette Talbot Hovermale for the degree of Doctor of Philosophy in

Spider Mite Control on Red Raspberries

Creator:: Shanks, Carl H., Jr., Chamberlain, Jim D., and Bergen, Jeannette R.
Resource Type:: Conference Proceeding
Full Text:: , USDA-ARS) and has become established in southern California. According toDr. Stoetzel, E. elegans

Root Weevil Control on Red Raspberry, 1995

Creator:: Tanigoshi, Lynell K., Shanks, Carl H., Jr., Chamberlain, Jim D., and Bergen, Jeannette R.
Resource Type:: Conference Proceeding
Full Text:: delivered 100 gal/acre at 2 mphwhen both sides of the rowwere sprayed. Air temperature was 78 °F and E wind

Focus on Forestry ; Spring 1990

Creator:: Oregon State University. College of Forestry, Wells, Gail, and Brown, George
Abstract:: Vol. 3, No. 2
Resource Type:: Other
Full Text:: will go back into the tree-farm budget. ("Just like real life," says Jeannette Williams, student

Performance of perennial ryegrass (Lolium perenne L.) seed crops under water stress conditions

Creator:: Velloza, Theodosius Marmaduke
Abstract:: Summer drought is a major factor limiting the regrowth of perennial ryegrass seed crops. This phase of crop development has a strong influence on seed yield because most of the tillers that contribute towards next season's seed crop are produced or regrown during this period. In recent years many seed...
Resource Type:: Dissertation
Full Text:: . Richardson, Daniel B. Dunham, Murray L. Laver and Mr. Mark E. Mellbye for their constructive criticisms. I

Descriptive Analysis: Winemaker Evaluation of Experimental Wines

Creator:: McDaniel, Mina R., Young, Sheri, and Watson, Barney
Abstract:: Training descriptive analysis panels can be very costly, taking months to select and train panelists, develop descriptors and standards, and finally collect and analyze the data. Recently, the Oregon State University wine program has utilized industry winemakers to gather descriptive data on experimental wines. From 10-20 winemakers visit the university...
Resource Type:: Technical Report
Full Text:: file://E:\OWAB Research\1996-97\Report5\mcdan97a.htm Oregon

The Role of Natural Resources Information in Oregon Legislative Policy-Making; Two Case Studies from the 1991 Legislative Session

Creator:: Brown, Mara Arwyn
Abstract:: This paper focuses on the role of natural resources information in Oregon legislative policy-making, based on the two legislative case studies from the 1991 Legislative Session, surveys conducted of state natural resource agency legislative liaisons, and a review of current literature addressing policy-making and the role of science in policy-making....
Resource Type:: Capstone Project

Focus on Forestry ; Fall 1997

Creator:: Oregon State University. College of Forestry, Brown, George, Wells, Gail, and White, Seth
Abstract:: Magazine of the OSU College of Forestry. Vol 10, No. 3
Resource Type:: Other
Full Text:: its many activities and programs. We welcome letters, phone calls, and e-mail comments from readers

Research reports : 54th Annual Northwest Insect Management Conference

Creator:: Pacific Northwest Insect Management Conference
Abstract:: Proceedings of the 54th Annual Pacific Northwest Insect Management Conference, held January 9-10, 1995 at the Imperial Hotel in Portland, Oregon.
Resource Type:: Conference Proceeding
Full Text:: -♦- LA -0- L l-3 -e- L4-5 -«- Total L Section IV. Biological and Cultural control PHYTOSEHD

Bacterial 16S ribosomal DNA analysis of pyrrolizidine alkaloid detoxifying enrichments from the ovine rumen

Creator:: Gray, Diane R.
Abstract:: Bacterial cultures enriched from sheep rumen fluid have demonstrated the ability to detoxify pyrrolizidine alkaloids (seneciphylline and jacobine) in tansy ragwort (Senecio jacobaea). The microbes are difficult to isolate using classical anaerobic techniques, therefore, microbes from two different enrichment cultures demonstrating similar degradation activity were identified using their 16S ribosomal...
Resource Type:: Masters Thesis
Full Text:: Kevin Vergin for providing technical assistance with the methods, and Dr. Jeannette Hovermale for

ScholarsArchive@OSU

Metabolism of pyrrolizidine alkaloids by ruminal microbes

Spider Mite Control on Red Raspberries

Root Weevil Control on Red Raspberry, 1995

Focus on Forestry ; Spring 1990

Performance of perennial ryegrass (Lolium perenne L.) seed crops under water stress conditions

Descriptive Analysis: Winemaker Evaluation of Experimental Wines

The Role of Natural Resources Information in Oregon Legislative Policy-Making; Two Case Studies from the 1991 Legislative Session

Focus on Forestry ; Fall 1997

Research reports : 54th Annual Northwest Insect Management Conference

Bacterial 16S ribosomal DNA analysis of pyrrolizidine alkaloid detoxifying enrichments from the ovine rumen

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