PMID- 11705257
OWN - NLM
STAT- MEDLINE
DCOM- 20011231
LR  - 20011113
IS  - 0958-0344 (Print)
IS  - 0958-0344 (Linking)
VI  - 12
IP  - 5
DP  - 2001 Sep-Oct
TI  - Low molecular weight organic acids and fatty acids in root exudates of two 
      Lupinus cultivars at flowering and fruiting stages.
PG  - 305-11
AB  - Low molecular weight organic acids (LOAs) and fatty acids in root exudates of two 
      lupin cultivars, Lupinus albus cv. Multolupa and L. luteus cv. Tremosilla, were 
      determined at flowering and fruiting stages. LOAs were analysed by capillary 
      electrophoresis. Acetic and citric acids were the most abundant, especially the 
      latter in L. luteus at the flowering stage (5922.79 micrograms/g dry root). The 
      significant decrease in acid content of both cultivars from flowering to fruiting 
      stages was also striking. The highest levels of acetic acid were detected in L. 
      luteus at fruiting stage (1542.03 micrograms/g dry root). The significant citrate 
      production in L. luteus could be related to the low phosphorus concentration in 
      the studied soils but not to proteoid roots, which were detected only in L. 
      albus. The source of the LOAs detected in these exudates is also discussed, since 
      they may be produced either by the plant or by the associated rhizobacteria. The 
      profile of phospholipid fatty acids was determined by high-resolution GC. A high 
      level of 18:2 omega 6 (a fatty-acid specific to fungi) was found in exudates of 
      L. luteus (a mycorrhizal plant) in contrast to L. albus (a non-mycorrhizal 
      plant).
FAU - Lucas Garcia, J A
AU  - Lucas Garcia JA
AD  - Universidad San Pablo CEU, PO Box 67, Boadilla del Monte, 28660 Madrid, Spain.
FAU - Barbas, C
AU  - Barbas C
FAU - Probanza, A
AU  - Probanza A
FAU - Barrientos, M L
AU  - Barrientos ML
FAU - Gutierrez Manero, F J
AU  - Gutierrez Manero FJ
LA  - eng
PT  - Journal Article
PL  - England
TA  - Phytochem Anal
JT  - Phytochemical analysis : PCA
JID - 9200492
RN  - 0 (Acids)
RN  - 0 (Fatty Acids)
RN  - 0 (Organic Chemicals)
RN  - 0 (Phospholipids)
SB  - IM
MH  - Acids/*analysis/chemistry
MH  - Chromatography, Gas
MH  - Electrophoresis, Capillary
MH  - Fabaceae/chemistry
MH  - Fatty Acids/*analysis/chemistry
MH  - Molecular Weight
MH  - Organic Chemicals/*analysis/chemistry
MH  - Phospholipids/chemistry
MH  - Plant Roots/chemistry
MH  - Reproducibility of Results
EDAT- 2001/11/14 10:00
MHDA- 2002/01/05 10:01
CRDT- 2001/11/14 10:00
PHST- 2001/11/14 10:00 [pubmed]
PHST- 2002/01/05 10:01 [medline]
PHST- 2001/11/14 10:00 [entrez]
AID - 10.1002/pca.596 [doi]
PST - ppublish
SO  - Phytochem Anal. 2001 Sep-Oct;12(5):305-11. doi: 10.1002/pca.596.