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

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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 pg g-1) and forest soils (pH 5. 3, Al 10 pg 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.

Original languageEnglish (US)
Pages (from-to)53-57
Number of pages5
JournalSeed Science Research
Volume5
Issue number1
DOIs
StatePublished - Mar 1995

Keywords

  • Aluminium
  • EDX
  • Eucalyptus
  • coal mining
  • globoid inclusions

ASJC Scopus subject areas

  • Plant Science

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