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Reserves of aluminium and mineral nutrients in seeds of Eucalyptus calophylla (Myrtaceae) with reference to the globoid inclusions

Published online by Cambridge University Press:  19 September 2008

Louise M. Egerton-Warburton ,
Brendon J. Griffin  and
John Kuo
Louise M. Egerton-Warburton*
Affiliation:
Plant Sciences (Horticulture)
Brendon J. Griffin
Affiliation:
Centre for Microscopy and Microanalysis, The University of Western Australia, Nedlands 6009, Western Australia, Australia
John Kuo
Affiliation:
Centre for Microscopy and Microanalysis, The University of Western Australia, Nedlands 6009, Western Australia, Australia
*
*Correspondence
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Abstract

Amounts of mineral nutrients and aluminium (Al) were assessed in the globoid inclusions, proteinaceous matrix and druse crystals of Eucalyptus calophylla seeds collected from trees grown in coal-mine (mean soil pH 4.3, Al 260 μg g−1) and forest soils (pH 5.3, Al 10 μg g−1). Energy-dispersive X-ray microanalysis (EDX) of bulk frozen hydrated samples indicated that significantly higher amounts of Mg, P, S, K and Ca occurred in the globoid inclusions of mine- than forest-site seeds. In both seedstocks, Al was detected in the globoid inclusions but not in the proteinaceous matrix or druse crystals. Significantly higher amounts of Al occurred in mine-site samples of dry and germinating seeds than in forest-site seeds. It was concluded that globoid inclusions may be useful as indicators of the soil conditions in which the parent plant was grown.

Keywords

AluminiumEucalyptusgloboid inclusionsEDXcoal mining
Type
Short Communication
Information
Seed Science Research , Volume 5 , Issue 1 , March 1995 , pp. 53 - 57
Copyright
Copyright © Cambridge University Press 1995

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