Dopamine has long been known to regulate the activity of striatal cholinergic interneurons and the release of acetylcholine. Yet, the cellular mechanisms by which this regulation occurs have not been elucidated. One way in which dopamine might act is by modulating voltage-dependent Ca2+ channels. To test this hypothesis, the impact of dopaminergic agonists on Ca2+ channels in neostriatal cholin...

High levels of linolenic acid (80 g kg(-1)) are associated with the development of off-flavors and poor stability in soybean oil. The development of low linolenic acid lines such as RG10 (20 g kg(-1) linolenic acid) can reduce these problems. The level of linolenic acid in seed oil is determined by the activities of microsomal omega-3 fatty acid desaturases (FAD3). A major linolenic acid QTL (>...

One of the most important characteristics of breeding modern, high-yielding, hexaploid bread wheat cultivars is the utilization of reduced height genes (Rht) or dwarfing genes, which reduces plant height and simultaneously increases adaptability and grain yield potential (Worland et al., 2001). The most frequently used height reducing genes with strong effect on plant height shortening are Rht-...