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Assessing plant-microbial competition for P-33 using uptake into phospholipids

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Author

Summary, in English

A novel method of estimating soil microbial P uptake, using P-33 incorporation into the phospholipids in soil microbial biomass, was used in a study of P-competition between plants and microorganisms. The microbial biomass, and thus the competition for the added P-33, was altered by using different glucose treatments in a microcosm set-up. There was obvious competition for P-33, as shown by the negative relationship between P-33 uptake by the plant and P-33 incorporation into microbial phospholipids. The data thus indicate that soil microorganisms partly control P-33 uptake by the plant. The suggested method of measuring P-33 in phospholipids appears to have the potential to provide a rapid alternative to techniques such as chloroform fumigation-extraction for the determination of microbial P uptake, although at present the method will only give relative estimates of P uptake.

Publishing year

2007

Language

English

Pages

233-237

Publication/Series

Applied Soil Ecology

Volume

36

Issue

2-3

Document type

Journal article

Publisher

Elsevier

Topic

  • Biological Sciences

Keywords

  • FUMIGATION
  • RAPID METHOD
  • EXTRACTION METHOD
  • BIOMASS-P
  • SOIL
  • NITROGEN
  • PHOSPHORUS
  • MICROORGANISMS
  • GLUCOSE
  • COMMUNITIES

Status

Published

Project

  • Effect of environmental factors on fungal and bacterial growth in soil
  • Carbon drivers and microbial agents of soil respiration
  • Microbial carbon-use efficiency

Research group

  • Microbial Ecology

ISBN/ISSN/Other

  • ISSN: 0929-1393