Aluminium uptake, translocation and accumulation in the aluminium accumulating plant species buckwheat (Fagopyrum esculentum Moench) [Elektronische Ressource] / Benjamin Klug

Aluminium uptake, translocation and accumulation in the aluminium accumulating plant species buckwheat (Fagopyrum esculentum Moench) Von der Naturwissenschaftlichen Fakultät der Gottfried Wilhelm Leibniz Universität Hannover zur Erlangung des Grades Doktor der Gartenbauwissenschaften Dr. rer. hort. genehmigte Dissertation von Dipl.-Ing. agr. Benjamin Klug geboren am 17.10.1977 in Miltenberg 2010 Referent: Prof. Dr. rer. agr. Walter J. Horst Korreferent: Prof. Dr. rer. agr. Heiner Goldbach Tag der Promotion: 01.07.2010 Abstract _____________________________________________________________________ Abstract Aluminium toxicity is the major factor limiting crop productivity on acid soils. These acid soils represent a significant share of the world’s arable land. Most plant species are showing a pronounced root growth inhibition already at micro molar concentrations of Al in the soil solution which leads, as consequence thereof to reduced yield. Notwithstanding these severe effects of Al, there is a wide variation in Al resistance between plant species and even between genotypes within one species. Plant species like buckwheat are highly Al resistant and can even accumulate Al in above ground plant organs, whereas non Al accumulating plant species are showing only traces of Al in the leaf tissue.