Abstract
Polyphosphate is a quantitatively important and dynamic component of the sedimentary phosphorus in many lakes. Kenney et al. correctly note that we misrepresented their data on polyphosphate in Lake Apopka in our article on the phosphorus composition of subtropical lake sediments, and we regret this error. However, we reiterate that their operationally defined heat extraction procedure overestimates polyphosphate in lake sediments because it includes phosphorus from a number of non-polyphosphate sources. In contrast, our measurements by solution 31P NMR spectroscopy provide direct quantification of polyphosphate in Lake Apopka sediments and are therefore closer to the true values. Future studies addressing the origins and dynamics of polyphosphate in the environment should employ analytical procedures that unequivocally identify and quantify polyphosphate.
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References
Ahlgren J, Tranvik L, Gogoll A, Waldebäck M, Markides K, Rydin E (2005) Sediment depth attenuation of biogenic phosphorus compounds measured by 31P NMR. Environ Sci Technol 39:867–872
Cade-Menun BJ, Benitez-Nelson CR, Pellechia P, Paytan A (2005) Refining 31P nuclear magnetic resonance spectroscopy for marine particulate samples: storage conditions and extraction recovery. Mar Chem 97:293–306
Cheesman AW, Turner BL, Reddy KR (2012) Soil phosphorus forms along a strong nutrient gradient in a tropical ombrotrophic wetland. Soil Sci Soc Am J 76:1496–1506
Hupfer M, Gächter R, Rüegger H (1995) Polyphosphate in lake sediments: 31P NMR spectroscopy as a tool for its identification. Limnol Oceanogr 40:610–617
Hupfer M, Rübe B, Schmieder P (2004) Origin and diagenesis of polyphosphate in lake sediments: a 31P-NMR study. Limnol Oceanogr 49:1–10
Hupfer M, Glöss S, Schmieder P, Grossart H-P (2008) Methods for detection and quantification of polyphosphate and polyphosphate accumulating microorganisms in aquatic sediments. Int Rev Hydrobiol 93:1–30
Kenney WF, Schelske CL, Chapman AD (2001) Changes in polyphosphate sedimentation: a response to excessive phosphorus enrichment in a hypereutrophic lake. Can J Fish Aquat Sci 58:879–887
Kenney WF, Chapman AD, Schelske CL (2014) Comment on “The chemical nature of phosphorus in subtropical lake sediments”. Aquat Geochem. doi:10.1007/s10498-014-9241-z
Özkundakci D, Hamilton DP, McDowell R, Hill S (2013) Phosphorus dynamics in sediments of a eutrophic lake derived from 31P nuclear magnetic resonance spectroscopy. Mar Freshw Res 65:70–80
Pettersson K (1980) Alkaline phosphatase activity and algal surplus phosphorus as phosphorus-deficiency indicators in Lake Erken. Arch Hydrobiol 89:54–87
Reitzel K, Ahlgren J, DeBrabandere H, Waldebäck M, Gogoll A, Tranvik L, Rydin E (2007) Degradation rates of organic phosphorus in lake sediment. Biogeochemistry 82:15–28
Torres I, Turner B, Ramesh Reddy K (2014) The chemical nature of phosphorus in subtropical lake sediments. Aquat Geochem 20:437–457
Wolf DC, Dao TH, Scott HD, Lavy TL (1989) Influence of sterilization methods on selected soil microbiological, physical, and chemical properties. J Environ Qual 18:39–44
Xie RJ, MacKenzie AF (1990) Sorbed ortho- and pyrophosphate effects on zinc reactions compared in three autoclaved soils. Soil Sci Soc Am J 54:744–750
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Turner, B.L., Torres, I.C. & Reddy, K.R. Response to Comment on “The Chemical Nature of Phosphorus in Subtropical Lake Sediments”, by Kenney et al.. Aquat Geochem 21, 7–9 (2015). https://doi.org/10.1007/s10498-014-9242-y
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DOI: https://doi.org/10.1007/s10498-014-9242-y