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Title (Primary) Distribution of arsenic species in different leaf fractions - an evaluation of the biochemical deposition of arsenic in plant cells
Author Schmidt, A.-C.; Mattusch, J.; Wennrich, R.
Journal Microchimica Acta
Year 2005
Department ANA
Volume 151
Issue 3-4
Page From 167
Page To 174
Language englisch
Abstract

This paper describes an approach to the determination of arsenic species bonding with proteins or low-molecular peptides by separation of leaf proteins and protein precursors into three fractions and analysis of arsenic species associated to these fractions. Plants irrigated with arsenite contained not only arsenite but also arsenate and dimethylarsinate. In plants treated with arsenate, the major component was arsenite in the water-soluble fraction containing soluble protein and non-protein (F II) and in the acid-soluble non-protein fraction (F IV). Concentrations of 43 mg kg−1 (As(V)-treatment) and 18 mg kg−1 (As(III)-treatment) could be analyzed in the water-insoluble structure protein fraction F I (56 ± 15% of the total mass).

Based on the concentration of arsenic species in all fractions, conclusions are drawn over the fixation of arsenic in the fraction of insoluble structure proteins, in the fraction of soluble cytosolic proteins as well as the fraction of amino acids.

Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=3769
Schmidt, A.-C., Mattusch, J., Wennrich, R. (2005):
Distribution of arsenic species in different leaf fractions - an evaluation of the biochemical deposition of arsenic in plant cells
Microchim. Acta 151 (3-4), 167 - 174