Trace elements and in particular manganese in three Brazilian medicinal plants studied in tea and in hydropony grown plants [Elektronische Ressource] / Sâmara Karla Nascimento-Jaehnke

Trace elements and in particular manganese in three Brazilian medicinal plants studied in tea and in hydropony grown plants Dissertation zur Erlangung des Grades “Doktor der Naturwissenschaften” (Dr. rer. nat.) am Fachbereich Chemie, Pharmazie und Geowissenschaften der Johannes Gutenberg Universität in Mainz Sâmara Karla Nascimento-Jaehnke geboren in Manaus (AM), Brazil Mainz 2006 Dekan: 1. Berichterstatter: 2. Berichterstatter: Tag der mündlichen Prüfung: 2Index Abstract..................................................................................................................................... 6 1. Introduction to element speciation ..................................................................................... 8 2. Motivation............................................................................................................................. 9 2.1. One element in particular: manganese ............................................................................ 9 2.2. Medicinal plant teas ...................................................................................................... 10 2.3. Plants growing under metal stress condition................................................................. 12 3. Literature survey and the studied plant material ........................................................... 14 3.1. Jambu = Jam (Spilanthes oleracea) .....................................................