Hyperaccumulation of manganese in the rainforest tree Austromyrtus bidwillii (Myrtaceae) from Queensland, Australia

Functional Plant Biology : FPB
Sjaan D BidwellJens Sommer-Knudsen

Abstract

Throughout the world, over 400 species of plants are known to accumulate large quantities of metals in their shoots (`hyperaccumulators'), but of these, relatively few accumulate manganese (Mn). We have identified for the first time an Australian native hyperaccumulator of Mn, Austromyrtus bidwillii (Benth.) Burrett (Myrtaceae). Concentrations of Mn up to 19 200 µg g-1 were measured in dried leaves of this rainforest tree, and young bark was found to contain up to 26 500 µg g-1 Mn. Approximately 40% of the Mn in the leaves is readily extracted with water, suggesting that some of the Mn is associated with water-soluble compounds such as organic acids. Organic acids present in appreciable amounts in leaf extracts of A. bidwillii were identified and quantified by HPLC and gas chromatography-mass spectrometry. The following organic acids (in order of concentration) were present: succinic > malic ≥ malonic > oxalic > citric acid. The concentration of total organic acids was on average 123 000 µg g-1 dry tissue, which amounted to approximately three times the molar equivalent of Mn and two times the molar equivalent of total cations (Mn, Mg and Ca), demonstrating that organic anions were in excess. The Mn remaining after water extrac...Continue Reading

Citations

Dec 6, 2005·Journal of Biological Inorganic Chemistry : JBIC : a Publication of the Society of Biological Inorganic Chemistry·Damien L CallahanAnthony G Wedd
Aug 21, 2014·Environmental Science and Pollution Research International·Guillaume LosfeldTanguy Jaffré
Feb 16, 2018·Journal of Experimental Botany·Elisa AndresenHendrik Küpper
Mar 20, 2013·American Journal of Botany·Denise R FernandoRainer Siegele
May 28, 2019·Environmental Science and Pollution Research International·Fangming YuYi Li
Jun 11, 2020·Plant, Cell & Environment·Anna ManaraGiovanni DalCorso
Jul 23, 2014·Metallomics : Integrated Biometal Science·Oliver A H JonesUte Roessner
May 1, 2008·Functional Plant Biology : FPB·Denise R FernandoAlan J Baker
Nov 27, 2020·International Journal of Molecular Sciences·Laura Ceballos-LaitaAna Flor López-Millán
Feb 26, 2021·Metallomics : Integrated Biometal Science·Farida AbubakariAntony van der Ent

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