Incubation of tyrosine with the RNA from brome-mosaic-virus under conditions favourable for aminoacylation of tRNA resulted in binding of tyrosine to the viral RNA. Sucrose-density-gradient centrifugation showed that tyrosine binds to three and probably to all four of the viral RNA components. The bound amino acid was readily released in mild alkaline solutions. Of 20 amino acids tested, only t...

Beef Average Daily Gain and Enteric Methane Emissions on Birdsfoot Trefoil, Cicer Milkvetch and Meadow Brome Pastures

Abstract Climate benefit assessments of bioenergy crops often focus on biogeochemical impacts, paying little if any attention to biogeophysical impacts. However, land conversions required for large-scale crop production are substantial and may directly affect the climate by altering surface energy balance. In US, such likely be met in part converting Conservation Reserve Program (CRP) grassland...

Broadleaf herbicides are commonly used to suppress exotic weeds with the intent of releasing native species from negative impacts of invasion. However, weed control measures can also have unintended consequences that should be considered along with intended effects. We conducted a controlled field experiment within bunchgrass communities of western Montana to examine if broadcast application of...

Water level data have been collected since 1968 for small wetlands within a 385 ha area in the northern prairie region of Canada. The uplands around the wetlands were under dryland cultivation prior to 1968 and there was no significant change of land use until 1980. Between 1980 and 1983 about one-third of the area was converted to a permanent undisturbed cover of smooth brome grass (Bromus ine...