Assessing plant-microbial competition for P-33 using uptake into phospholipids
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Assessing plant-microbial competition for P-33 using uptake into phospholipids. / Rousk, Johannes; Bååth, Erland; Göransson, Hans; Fransson, Ann-Mari.
I: Applied Soil Ecology, Vol. 36, Nr. 2-3, 2007, s. 233-237.Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift
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T1 - Assessing plant-microbial competition for P-33 using uptake into phospholipids
AU - Rousk, Johannes
AU - Bååth, Erland
AU - Göransson, Hans
AU - Fransson, Ann-Mari
PY - 2007
Y1 - 2007
N2 - 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.
AB - 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.
KW - FUMIGATION
KW - RAPID METHOD
KW - EXTRACTION METHOD
KW - BIOMASS-P
KW - SOIL
KW - NITROGEN
KW - PHOSPHORUS
KW - MICROORGANISMS
KW - GLUCOSE
KW - COMMUNITIES
U2 - 10.1016/j.apsoil.2007.03.004
DO - 10.1016/j.apsoil.2007.03.004
M3 - Article
VL - 36
SP - 233
EP - 237
JO - Applied Soil Ecology
JF - Applied Soil Ecology
SN - 0929-1393
IS - 2-3
ER -