Identification of intracellular calcium oxalate crystals in Chamelaucium uncinatum (Myrtaceae)

Macnish, A. J., Irving, D. E., Joyce, D. C., Vithanage, V., Wearing, A. H., Webb, R. I. and Frost, R. L. (2003) Identification of intracellular calcium oxalate crystals in Chamelaucium uncinatum (Myrtaceae). Australian Journal of Botany, 51 5: 565-572. doi:10.1071/BT03035

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Author Macnish, A. J.
Irving, D. E.
Joyce, D. C.
Vithanage, V.
Wearing, A. H.
Webb, R. I.
Frost, R. L.
Title Identification of intracellular calcium oxalate crystals in Chamelaucium uncinatum (Myrtaceae)
Journal name Australian Journal of Botany   Check publisher's open access policy
ISSN 0067-1924
Publication date 2003
Sub-type Article (original research)
DOI 10.1071/BT03035
Open Access Status File (Author Post-print)
Volume 51
Issue 5
Start page 565
End page 572
Total pages 8
Editor Simone Farrer
Place of publication Melbourne, Australia
Publisher C S I R O Publishing
Collection year 2003
Language eng
Subject C1
300301 Plant Improvement (Selection, Breeding and Genetic Engineering)
620209 Ornamentals, Australian natives and nursery plants
070605 Post Harvest Horticultural Technologies (incl. Transportation and Storage)
Abstract Intracellular inclusions in the pedicel and calyx-tube tissues of Chamelaucium uncinatum Schauer ( Myrtaceae) flowers are irregular in shape. They were shown, by polarised light and scanning electron microscopy, to be birefringent 8.9-29.5 mum druse (i.e. aggregate) crystals. Energy-dispersive X-ray spectroscopy showed that these crystals were predominantly composed of calcium. Histochemical and acid-solubility tests indicated that the crystals were calcium oxalate. Raman microprobe spectroscopy was used to confirm this chemical identity. The calcium oxalate crystals were located in xylem-vessel lumens and also in parenchyma cells adjacent to vascular tissues. Thus, the crystals may function to regulate soluble calcium concentrations in C. uncinatum tissues near sites where calcium is unloaded from the xylem.
Keyword Plant Sciences
Seed Protein Bodies
Gleditsia-triacanthos L
Q-Index Code C1

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Created: Tue, 14 Aug 2007, 19:20:27 EST