A cell free extract from Saccharomyces cerevisiae containing the
enzyme that causes reduction of the 24(28)methylene group on the side
chain of ergosterol has been studied. Optimal conditions for the
24(28)methylene reductase were obtained. The enzyme activity was
increased in cells grown with ethanol as the substrate. The Km was...
Pacific salmon (Oncorhynchus spp.) rearing in lakes and reservoirs have been known to become heavily infected with an ectoparasitic copepod (Salmincola californiensis). Little is known about the factors that affect the parasite infection prevalence and intensity. However, previous research suggests that the parasite may negatively affect the fitness and survival...
Published May 1977. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
According to Block (1999), the greatest problem with inclusion in physical education is the lack of personnel support. Most help comes in the form of teacher assistants such as peer-tutors and paraprofessional who receive very little, if any, direction from the general physical education teacher. However, what remains unknown are...
Gene expression profiles of the biological control strain Pseudomonas protegens Pf-5 inhabiting pea seed surfaces were revealed using a whole-genome oligonucleotide microarray. We identified genes expressed by Pf-5 under the control of two global regulators (GacA and RpoS) known to influence biological control and secondary metabolism. Transcript levels of 897...
Migrant and seasonal farmworkers face many health risks with limited access to health care and promotion services. This study explored whether fear of deportation (as a barrier), and church attendance (as an enabling factor), were associated with medical and dental care use among Mexican-origin farmworkers. Interviews were conducted with 179...
Thinning is removing selected trees from a stand to allow others to
continue growing. Ordinarily, a woodland manager uses a thinning
system that encourages the remaining trees to grow in a manner
consistent with the manager’s objectives for those trees.