The DOI matches its Crossref record; 24 of the 24 references it cites were found in a registry or an index.
Citric acid excretion and precipitation of calcium citrate in the rhizosphere of white lupin (Lupinus albus L.)
Abstract
Abstract. White lupin (Lupinus albus L.) was grown for 13 weeks in a phosphorus (P) deficient calcareous soil (20% CaCO 3, pH(H 2 O)7.5) which had been sterilized prior to planting and fertilized with nitrate as source of nitrogen. In response to P deficiency, proteoid roots developed which accounted for about 50% of the root dry weight. In the rhizosphere soil of the proteoid root zones, the pH dropped to 4.8 and abundant white precipitates became visible. X‐ray spectroscopy and chemical analysis showed that these precipitates consisted of calcium citrate. The amount of citrate released as root exudate by 13‐week‐old plants was about 1 g plant−1, representing about 23% of the total plant dry weight at harvest. In the rhizosphere soil of the proteoid root zones the concentrations of available P decreased and of available Fe, Mn and Zn increased. The strong acidification of the rhizosphere and the cation/anion uptake ratio of the plants strongly suggests that proteoid roots of white lupin excrete citric acid, rather than citrate, into the rhizosphere leading to intensive chemical extraction of a limited soil volume. In a calcareous soil, citric acid excretion leads to dissolution of CaCO 3 and precipitation of calcium citrate in the zone of proteoid roots.
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Citations
Cites
Development of a DTPA Soil Test for Zinc, Iron, Manganese, and Copper
Lindsay, W. L., & Norvell, W. A. (1978) · Soil Science Society of America Journal · doi:10.2136/sssaj1978.03615995004200030009x · Cited by 9,983
Test of an Ascorbic Acid Method for Determining Phosphorus in Water and NaHCO 3 Extracts from Soil
Watanabe, F. S., & Olsen, S. R. (1965) · Soil Science Society of America Journal · doi:10.2136/sssaj1965.03615995002900060025x · Cited by 2,485
A Test of a Modified Line Intersect Method of Estimating Root Length
Tennant, D. (1975) · The Journal of Ecology · doi:10.2307/2258617 · Cited by 2,269
Takagi, S.-I. (1976) · Soil Science and Plant Nutrition · doi:10.1080/00380768.1976.10433004 · Cited by 560
The acquisition of phosphorus byLupinus albus L.
Gardner, W. K., Barber, D. A., & Parbery, D. G. (1983) · Plant and Soil · doi:10.1007/bf02374754 · Cited by 531
Root‐induced changes in the rhizosphere: Importance for the mineral nutrition of plants
Marschner, H., Römheld, V., Horst, W. J., & Martin, P. (1986) · Zeitschrift für Pflanzenernährung und Bodenkunde · doi:10.1002/jpln.19861490408 · Cited by 501
Self-citationBRUEMMER, G. W., GERTH, J., & TILLER, K. G. (1988) · Journal of Soil Science · doi:10.1111/j.1365-2389.1988.tb01192.x · Cited by 484
Die CAL‐Methode, eine neue Methode zur Bestimmung des pflanzenverfügbaren Phosphates in Böden
Schüller, H. (1969) · Zeitschrift für Pflanzenernährung und Bodenkunde · doi:10.1002/jpln.19691230106 · Cited by 467
THE RELEASE OF ORGANIC SUBSTANCES BY CEREAL ROOTS INTO SOIL
BARBER, D. A., & MARTIN, J. K. (1976) · New Phytologist · doi:10.1111/j.1469-8137.1976.tb01439.x · Cited by 423
Marschner, H., & Römheld, V. (1983) · Zeitschrift für Pflanzenphysiologie · doi:10.1016/s0044-328x(83)80083-x · Cited by 423
Self-citation
Cited by
Hinsinger, P., Plassard, C., Tang, C., & Jaillard, B. (2003) · Plant and Soil · doi:10.1023/a:1022371130939 · Cited by 1,402
Li, L., Li, S.-M., Sun, J.-H., Zhou, L.-L., Bao, X.-G., Zhang, H.-G., & Zhang, F.-S. (2007) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0704591104 · Cited by 937
Evangelou, M. W. H., Ebel, M., & Schaeffer, A. (2007) · Chemosphere · doi:10.1016/j.chemosphere.2007.01.062 · Cited by 632
Iron oxide dissolution and solubility in the presence of siderophores
Kraemer, S. M. (2004) · Aquatic Sciences - Research Across Boundaries · doi:10.1007/s00027-003-0690-5 · Cited by 600
Strategies and agronomic interventions to improve the phosphorus-use efficiency of farming systems
Simpson, R. J., Oberson, A., Culvenor, R. A., Ryan, M. H., Veneklaas, E. J., Lambers, H., Lynch, J. P., Ryan, P. R., Delhaize, E., Smith, F. A., et al. (2011) · Plant and Soil · doi:10.1007/s11104-011-0880-1 · Cited by 462
Metadata
- Authors
- DINKELAKER, B., RÖMHELD, V., & MARSCHNER, H.
- Venue
- Plant, Cell & Environment
- Publisher
- Wiley
- Published
- 1989-04
- Volume
- 12
- Issue
- 3
- Pages
- 285-292
- ISSN
- 0140-7791 (ISSN-L)
- 1365-3040
- OpenAlex
- W2155785332
- Cited by
- 721
- References
- 24
- FWCI
- 8.40
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Citric acid excretion and precipitation of calcium citrate in the rhizosphere of white lupin (Lupinus albus L.). https://app.cochat.ai/papers/10.1111/j.1365-3040.1989.tb01942.x
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- DINKELAKER, B., RÖMHELD, V., & MARSCHNER, H. (1989). Citric acid excretion and precipitation of calcium citrate in the rhizosphere of white lupin (Lupinus albus L.). Plant, Cell & Environment. https://doi.org/10.1111/j.1365-3040.1989.tb01942.x
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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