Characterization of foliar manganese (Mn) in Mn (hyper)accumulators using x-ray absorption spectroscopy

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dc.contributor.authorFernando, DRen_AU
dc.contributor.authorMizuno, Ten_AU
dc.contributor.authorWoodrow, IEen_AU
dc.contributor.authorBaker, AJMen_AU
dc.contributor.authorCollins, RNen_AU
dc.date.accessioned2010-11-14T23:56:19Zen_AU
dc.date.available2010-11-14T23:56:19Zen_AU
dc.date.issued2010-12-01en_AU
dc.date.statistics2010-12-01en_AU
dc.description.abstractPlant hyperaccumulation of the essential nutrient manganese (Mn) is a rare phenomenon most evident in the Western Pacific region, and differs from hyperaccumulation of other elements. Mn hyperaccumulators employ a variety of species-dependent spatial distribution patterns in sequestering excess foliar Mn, including primary sequestration in both nonphotosynthetic and photosynthetic tissues. This investigation employed synchrotron X-ray absorption spectroscopy (XAS) in a comparative study of Mn (hyper)accumulators, to elucidate in situ the chemical form(s) of foliar Mn in seven woody species from Australia, New Caledonia and Japan. Foliar Mn was found to predominate as Mn(II) in all samples, with strong evidence of the role of carboxylic acids, such as malate or citrate, as complexing ligands. Overall, the X-ray absorption near-edge spectroscopy (XANES) and extended X-ray absorption fine-structure spectroscopy (EXAFS) data appeared weighted against previous observations that oxalate binds excess Mn in Mn-(hyper)accumulating species. © 2010, Wiley-Blackwell.en_AU
dc.identifier.citationFernando, D. R., Mizuno, T., Woodrow, I. E., Baker, A. J. M., & Collins, R. N. (2010). Characterization of foliar manganese (Mn) in Mn (hyper)accumulators using x-ray absorption spectroscopy. New Phytologist, 188(4), 1014-1027. doi:10.1111/j.1469-8137.2010.03431.xen_AU
dc.identifier.govdoc3050en_AU
dc.identifier.issn0028-646Xen_AU
dc.identifier.issue4en_AU
dc.identifier.journaltitleNew Phytologisten_AU
dc.identifier.pagination1014-1027en_AU
dc.identifier.urihttp://dx.doi.org/10.1111/j.1469-8137.2010.03431.xen_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/2858en_AU
dc.identifier.volume188en_AU
dc.language.isoenen_AU
dc.publisherWiley-Blackwellen_AU
dc.subjectManganeseen_AU
dc.subjectAbsorption spectroscopyen_AU
dc.subjectX-ray spectroscopyen_AU
dc.subjectCarboxylic acidsen_AU
dc.subjectPlantsen_AU
dc.subjectSpatial distributionen_AU
dc.titleCharacterization of foliar manganese (Mn) in Mn (hyper)accumulators using x-ray absorption spectroscopyen_AU
dc.typeJournal Articleen_AU
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