Most medicinal plants are flowering plants and they also serve as ornamental plants. Measurement of trace element content in medicinal plants, drugs and extracts may be relevant in view of e.g. human health, animal health and environmental relations. This fact has a great significance since about half of the plant drugs available in the trade originate from natural habitats and the element cont...

This enzyme, called the photosynthetic water oxidation complex (WOC), liberates protons and electrons needed for energy production and reduction of NADP’ and quinones that are essential for plant growth. The 0, formed in Equation 1 is not essential for plant survival, but is essential for other organisms on Earth, since it is by far the major source of global OL production for the atmosphere. T...

Transferrin is one of the key proteins of iron metabolism in mammalians. It is responsible for the transfer of the essential iron(III) ions through the biological fluids from absorption to storage and utilization sites. Moreover, transferrin is involved in the metabolism of other metal ions that are either trace or toxic elements. In recent years the crystal structure of transferrin has been so...

Gilles Gasser,* Ingo Ott,* and Nils Metzler-Nolte* Institute of Inorganic Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland, Institute of Pharmaceutical Chemistry, Technische Universit€ at Braunschweig, Beethovenstrasse 55, 38106 Braunschweig, Germany, and Chair of Inorganic Chemistry I, Bioinorganic Chemistry, Faculty of Chemistry and Biochemistry, Ruhr Univ...