Al accumulation in tea leaves

Information on localization of Al in tea leaf tissues allows to understand better Al tolerance mechanism in this Al-accumulating plant species. LEXRF proved to be a powerful tool for localization of Al in plant tissues, which can help in our understanding of the processes of Al uptake, transport and tolerance in plants.


R. Tolrà et al., J. Plant. Research 124, 165 (ANNO).

The effect of the concentration of cobalt ferrite (CoFe2O4) nanoparticles (NPs) on their intracellular location and distribution has been explored by synchrotron radiation X-ray and fluorescence microscopy (SR-XRF) monitoring the evolution of NPs elemental composition as well. In cells exposed to low concentrations of CoFe2O4 NPs, the NPs preferentially segregate in the perinuclear region preserving their initial chemical content. At concentrations exceeding 500 uM the XRF spectra indicate the presence of Co and Fe also in the nuclear region, accompanied by sensible changes in the cellular morphology. The increase of the Co/Fe ratio measured in the nuclear compartment indicates that above certain concentrations

the CoFe2O4 NPs intracellular distribution could be accompanied by biodegradation resulting in Co accumulation in the nucleus. Retrieve article Localization of aluminium in tea (Camellia sinensis) leaves using low-energy X-ray fluorescence spectro-microscopy; R. Tolra, K. Vogel-Mikus, R. Hajiboland, P. Kump. P. Pongrac, B. Kaulich, A. Gianoncelli, V. Babin, J. Barcelo, M. Regvar, C. Poschenrieder; J Plant Research 124, 165-172; doi:10.1007/s10265-010-0344-3