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Title
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³¹P-NMR metabolomics revealed species-specific use of phosphorous in trees of a French Guiana rainforest
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Author
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Abstract
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| Productivity of tropical lowland moist forests is often limited by availability and functional allocation of phosphorus (P) that drives competition among tree species and becomes a key factor in determining forestall community diversity. We used non-target(31)P-NMR metabolic profiling to study the foliar P-metabolism of trees of a French Guiana rainforest. The objective was to test the hypotheses that P-use is species-specific, and that species diversity relates to species P-use and concentrations of P-containing compounds, including inorganic phosphates, orthophosphate monoesters and diesters, phosphonates and organic polyphosphates. We found that tree species explained the 59% of variance in(31)P-NMR metabolite profiling of leaves. A principal component analysis showed that tree species were separated along PC 1 and PC 2 of detected P-containing compounds, which represented a continuum going from high concentrations of metabolites related to non-active P and P-storage, low total P concentrations and high N:P ratios, to high concentrations of P-containing metabolites related to energy and anabolic metabolism, high total P concentrations and low N:P ratios. These results highlight the species-specific use of P and the existence of species-specific P-use niches that are driven by the distinct species-specific position in a continuum in the P-allocation from P-storage compounds to P-containing molecules related to energy and anabolic metabolism. |
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Language
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English
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Source (journal)
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Molecules: a journal of synthetic chemistry and natural product chemistry. - Bazel
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Publication
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Bazel
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2020
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ISSN
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1420-3049
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DOI
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10.3390/MOLECULES25173960
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Volume/pages
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25
:17
(2020)
, p. 1-12
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Article Reference
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3960
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ISI
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000569656500001
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Pubmed ID
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32877991
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Medium
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E-only publicatie
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Full text (Publisher's DOI)
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Full text (open access)
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