Articles | Volume 17, issue 20
https://doi.org/10.5194/bg-17-5079-2020
https://doi.org/10.5194/bg-17-5079-2020
Research article
 | 
21 Oct 2020
Research article |  | 21 Oct 2020

Identification of lower-order inositol phosphates (IP5 and IP4) in soil extracts as determined by hypobromite oxidation and solution 31P NMR spectroscopy

Jolanda E. Reusser, René Verel, Daniel Zindel, Emmanuel Frossard, and Timothy I. McLaren

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Cited articles

Almeida, D. S., Menezes-Blackburn, D., Turner, B. L., Wearing, C., Haygarth, P. M., and Rosolem, C. A.: Urochloa ruziziensis cover crop increases the cycling of soil inositol phosphates, Biol. Fert. Soils, 54, 935–947, https://doi.org/10.1007/s00374-018-1316-3, 2018. 
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Anderson, G. and Arlidge, E. Z.: The adsorption of inositol phosphates and glycerophosphate by soil clays, clay minerals, and hydrated sesquioxides in acid media, J. Soil Sci., 13, 216–224, https://doi.org/10.1111/j.1365-2389.1962.tb00699.x, 1962. 
Anderson, G. and Malcolm, R. E.: The nature of alkali-soluble soil organic phosphates., J. Soil Sci., 25, 282–297, https://doi.org/10.1111/j.1365-2389.1974.tb01124.x, 1974. 
Anderson, G., Williams, E. G., and Moir, J. O.: A comparison of the sorption of inorganic orthophosphate and inositol hexaphosphate by six acid soils, J. Soil Sci., 25, 51–62, https://doi.org/10.1111/j.1365-2389.1974.tb01102.x, 1974. 
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Short summary
Inositol phosphates (IPs) are a major pool of organic P in soil. However, information on their diversity and abundance in soil is limited. We isolated IPs from soil and characterised them using solution nuclear magnetic resonance (NMR) spectroscopy. For the first time, we provide direct spectroscopic evidence for the existence of a multitude of lower-order IPs in soil extracts previously not detected with NMR. Our findings will help provide new insight into the cycling of IPs in ecosystems.
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