Abstract
NaOH is often used as an extractant for thefractionation of sediment-bound phosphates. Besidesorthophosphate, a certain quantity of phosphate whichis called ‘non-reactive NaOH-extractable phosphate’is also extracted. In recent literature it has beensuggested that this fraction consists of bacterialpolyphosphates and might be responsible for the phosphate release from aquatic sediments under anoxicconditions.
In a previous publication we have already shown thatNaOH is not an accurate extractant as both theconcentration of NaOH and the duration of theextraction have an influence on the quantity ofphosphate extracted, due to the hydrolysis of organicphosphates.
In this article we show that cold NaOH does not onlyextract iron-bound phosphate but phytate phosphate aswell. Non-reactive phosphate in this extract was notrelated to the presence of polyphosphate, but mainlyto phytate and humic phosphates. As it has been shownthat phytate may disappear from sediments when theybecome anoxic, we suggest that phytate mineralizationmay be an important mechanism for anoxic phosphaterelease from sediments.
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References
Baldwin, D. S., 1996. The phosphorus composition of a diverse series of Australian sediments. Hydrobiologia 335: 63–73.
De Groot, C. J. & H. L. Golterman, 1990. Sequential fractionation of sediment phosphate. Hydrobiologia 192: 143–149.
De Groot, C. J. & H. L. Golterman, 1993. On the presence of organic phosphate in some Camargue sediments: evidence for the importance of phytate. Hydrobiologia 252: 117–126.
De Groot, C. J. & C. Van Wijck, 1993. The impact of desiccation of a freshwater marsh (Garcines Nord, Camargue, France) on the sediment–water–vegetation interactions. Part 1: The sediment chemistry. Hydrobiologia 252: 83–94.
Golterman, H. L., 1960. Studies on the cycle of elements in fresh water. Acta Bot. 9: 1–58.
Golterman, H. L., 1997. Fractionation of sediment phosphate with chelating compounds: a simplification, and comparison with other methods. Hydrobiologia 335: 87–95.
Golterman, H. L., 1998. The distribution of phosphate over iron-bound and calcium-bound phosphate in stratified sediments. Hydrobiologia 364: 75–81.
Golterman, H. L & A. Booman, 1988. Sequential extraction of iron-phosphate and calcium-phosphate from sediments by chelating agents. Verh. int. Ver. Limnol. 23: 904–909.
Golterman, H. L., R. S. Clymo & M. A. M. Ohnstad, 1978. Methods for physical and chemical analysis of freshwaters, IBP Manual No 8 (2edn). Blackwell Scientific Publications, Oxford, 213 pp.
Hieltjes, A. H. M. & L. Lijklema, 1980. Fractionation of inorganic phosphates in calcareous sediments. J. envir. Qual. 9: 405–407.
Hupfer, M., R. Gächter & H. Rüegger, 1995. Polyphosphate in lake sediments: 31PNMR spectrospcopy as a tool for its identification. Limnol. Oceanogr. 40: 610–617.
Kulaev, I. S., 1979. The Biochemistry of Inorganic Polyphosphates. Wiley & Sons.
Kulaev, I. S. & V. M. Vagabov, 1983. Polyphosphate metabolism in micro-organisms. Advances in Microbial Physiology 24: 83–171.
Mesnage, V. & B. Picot, 1995. The distribution of phosphate in sediments and its relation with eutrophication of a Mediterranean lagoon. Hydrobiologia 297: 29–41.
Mortimer, C. H., 1941. The exchange of dissolved substances between mud and water in lakes. J. Ecol. 29: 280–329.
Mortimer, C. H., 1942. The exchange of dissolved substances between mud and water in lakes. J. Ecol. 30: 147–201.
Suzumura, M. & A. Kamatani. 1993. Isolation and determination of inositol hexaphosphate in sediments from Tokyo Bay. Geochim. Cosmochim. Acta 57: 2197–2202.
Suzumura, M. & A. Kamatani, 1995. Mineralization of inositol hexaphosphate in aerobic and anaerobic marine sediments: Implications for the phosphorus cycle. Geochim. Cosmochim. Acta 59: 1021–1026.
Suzumura, M., 1994. Fate of terrigenous inositol hexaphosphate transported to Tokyo Bay sediments. Ph.D. thesis, Tokyo Univ. Fish, 132 pp.
Williams, J. D. H., J. M. Jaquet & R. L. Thomas, 1976. Forms of phosphorus in the surficial sediments of Lake Erie. J. Fish Res. Bd Can. 33: 430–439.
Williams, J. D. H., H. Shear & R. L. Thomas, 1980. Availability to Scenedesmus quadricaudaof different forms of phosphorus in sedimentary materials from the Great Lakes. Limnol. Oceanogr. 25: 1–11.
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Golterman, H., Paing, J., Serrano, L. et al. Presence of and phosphate release from polyphosphates or phytate phosphate in lake sediments. Hydrobiologia 364, 99–104 (1997). https://doi.org/10.1023/A:1003212908511
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DOI: https://doi.org/10.1023/A:1003212908511