caa a22 4500 606218211 CHVBK 20210128105230.0 cr unu---uuuuu 210128e20150301xx s 000 0 eng 10.1007/s11104-014-2276-5 doi (NATIONALLICENCE)springer-10.1007/s11104-014-2276-5 Aluminum toxicity to tropical montane forest tree seedlings in southern Ecuador [Elektronische Daten] Response of nutrient status to elevated Al concentrations [Agnes Rehmus, Moritz Bigalke, Carlos Valarezo, Julio Castillo, Wolfgang Wilcke] Aims: We determined the reasons why in nutrient solution increasing Al concentrations >300 μ M inhibited shoot biomass production of Cedrela odorata L., Heliocarpus americanus L., and Tabebuia chrysantha (Jacq.) G. Nicholson while 300 μ M Al stimulated root biomass production of Tabebuia chrysantha. Methods: Nutrient concentrations in plant tissue after a hydroponic growth experiment were determined. Results: Increasing Al concentrations significantly decreased Mg concentrations in leaves. Phosphorus concentrations in roots of C. odorata and T. chrysantha were significantly highest in the treatment with 300 μ M Al and correlated significantly with root biomass. Conclusions: Shoot biomass production was likely inhibited by reduced Mg uptake, impairing photosynthesis. The stimulation of root growth at low Al concentrations can be possibly attributed to improved P uptake. Springer International Publishing Switzerland, 2014 Aluminum toxicity nationallicence Tropical forest tree seedlings nationallicence Nutrient deficiency nationallicence Growth stimulation by phosphorus nationallicence Rehmus Agnes Geographic Institute, University of Bern, Hallerstr. 12, 3012, Bern, Switzerland aut Bigalke Moritz Geographic Institute, University of Bern, Hallerstr. 12, 3012, Bern, Switzerland aut Valarezo Carlos Dirección General de Investigaciones, Universidad Nacional de Loja, Ciudadela Universitaria Guillermo Falconí, sector La Argelia, Loja, Ecuador aut Castillo Julio Institute of Silviculture, Technische Universität München, Hans-Carl-von-Carlowitz-Platz 2, 85354, Freising, Germany aut Wilcke Wolfgang Institute of Geography and Geoecology, Karlsruhe Institute of Technology (KIT), Reinhard-Baumeister-Platz 1, 76131, Karlsruhe, Germany aut Plant and Soil Springer International Publishing 388/1-2(2015-03-01), 87-97 0032-079X 388:1-2<87 2015 388 11104 https://doi.org/10.1007/s11104-014-2276-5 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11104-014-2276-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Rehmus Agnes Geographic Institute, University of Bern, Hallerstr. 12, 3012, Bern, Switzerland aut NATIONALLICENCE 700 1- Bigalke Moritz Geographic Institute, University of Bern, Hallerstr. 12, 3012, Bern, Switzerland aut NATIONALLICENCE 700 1- Valarezo Carlos Dirección General de Investigaciones, Universidad Nacional de Loja, Ciudadela Universitaria Guillermo Falconí, sector La Argelia, Loja, Ecuador aut NATIONALLICENCE 700 1- Castillo Julio Institute of Silviculture, Technische Universität München, Hans-Carl-von-Carlowitz-Platz 2, 85354, Freising, Germany aut NATIONALLICENCE 700 1- Wilcke Wolfgang Institute of Geography and Geoecology, Karlsruhe Institute of Technology (KIT), Reinhard-Baumeister-Platz 1, 76131, Karlsruhe, Germany aut NATIONALLICENCE 773 0- Plant and Soil Springer International Publishing 388/1-2(2015-03-01), 87-97 0032-079X 388:1-2<87 2015 388 11104 SWISSBIB 561186758