Menu

Javascript is not activated in your browser. This website needs javascript activated to work properly.
You are here

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

Author:
  • Johannes Rousk
  • Erland Bååth
  • Hans Göransson
  • Ann-Mari Fransson
Publishing year: 2007
Language: English
Pages: 233-237
Publication/Series: Agriculture, Ecosystems & Environment. Applied Soil Ecology
Volume: 36
Issue: 2-3
Document type: Journal article
Publisher: Elsevier

Abstract 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.

Keywords

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

Other

Published
  • Microbial carbon-use efficiency
  • Carbon drivers and microbial agents of soil respiration
  • Effect of environmental factors on fungal and bacterial growth in soil
  • Microbial Ecology
  • ISSN: 0929-1393
Erland Bååth
E-mail: erland [dot] baath [at] biol [dot] lu [dot] se

Professor emeritus

MEMEG

+46 46 222 42 64

E-F210

Sölvegatan 37, Lund

50