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Organic acids in the rhizosphere of Banksia integrifolia L.f.

Plant and Soil, ISSN: 0032-079X, Vol: 144, Issue: 2, Page: 259-265
1992
  • 127
    Citations
  • 0
    Usage
  • 47
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    127
    • Citation Indexes
      127
  • Captures
    47

Article Description

Water leachates of the proteoid root layer of a mature stand of Banksia integrifolia were analysed for low molecular weight (LMW) organic acids by GC, HPLC and colorimetric techniques. Large amounts of organic acids (2500 μ g in 100 mL of leachate) were found in the proteoid root layer compared to the surrounding soil and leaf litter (∼230 μg in 100 mL of leachate). Citric acid represented approximately 50% of the total organic acids leached, malic acid approximately 18%, and aconitic acid constituted approximately 17%. Concentration of citric acid in the proteoid root layer may enhance the availability of phosphorus for plant uptake. © 1992 Kluwer Academic Publishers.

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