title: Formation of silver plastocyanin in Scenedesmus.
abstract: Silver ions up to 5 microM do not affect growth of the green microalga Scenedesmus acutus. They induce formation of protein species precipitable by an antibody specific against plastocyanin. The metal is incorporated into a part of the induced protein in competition with copper. Bismuth, lead and molybdenum had no effect. The amount of both silver- and copper-containing plastocyanins so formed apparently regulates concurrently inhibition of soluble plastidic cytochrome c-553. The silver-copper competition for the build-up of blue plastocyanin can be shown with intact cells, not with isolated algal plastocyanin.
mesh_terms: D011232:Chemical Precipitation; D000460:Chlorophyta / Q000187:drug effects / Q000378:metabolism*; D003300:Copper / Q000494:pharmacology; D003574:Cytochrome c Group / Q000037:antagonists & inhibitors; D007158:Immunologic Techniques; D010940:Plant Proteins / Q000096:biosynthesis*; D010970:Plastocyanin / Q000096:biosynthesis*; D012834:Silver / Q000494:pharmacology*
chemical_list: D003574:Cytochrome c Group; D010940:Plant Proteins; C083951:cytochrome c553; D012834:Silver; D003300:Copper; D010970:Plastocyanin; C022302:cytochrome C-552