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Identification of extracellular glycerophosphodiesterases in Pseudomonas and their role in soil organic phosphorus remineralisation
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Lidbury, Ian, Murphy, Andrew, Fraser, Tandra D., Bending, G. D., Jones, Alexandra M., Moore, Jonathan D., Goodall, Andrew, Tibbetts, Mark, Hammond, John P., Scanlan, David J. and Wellington, E. M. H. (2017) Identification of extracellular glycerophosphodiesterases in Pseudomonas and their role in soil organic phosphorus remineralisation. Scientific Reports, 7 (1). 2179. doi:10.1038/s41598-017-02327-6
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Official URL: http://dx.doi.org/10.1038/s41598-017-02327-6
Abstract
In soils, phosphorus (P) exists in numerous organic and inorganic forms. However, plants can only acquire inorganic orthophosphate (Pi), meaning global crop production is frequently limited by P availability. To overcome this problem, rock phosphate fertilisers are heavily applied, often with negative environmental and socio-economic consequences. The organic P fraction of soil contains phospholipids that are rapidly degraded resulting in the release of bioavailable Pi. However, the mechanisms behind this process remain unknown. We identified and experimentally confirmed the function of two secreted glycerolphosphodiesterases, GlpQI and GlpQII, found in Pseudomonas stutzeri DSM4166 and Pseudomonas fluorescens SBW25, respectively. A series of co-cultivation experiments revealed that in these Pseudomonas strains, cleavage of glycerolphosphorylcholine and its breakdown product G3P occurs extracellularly allowing other bacteria to benefit from this metabolism. Analyses of metagenomic and metatranscriptomic datasets revealed that this trait is widespread among soil bacteria with Actinobacteria and Proteobacteria, specifically Betaproteobacteria and Gammaproteobacteria, the likely major players.
| Item Type: | Journal Article | ||||||
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| Subjects: | S Agriculture > S Agriculture (General) | ||||||
| Divisions: | Faculty of Science > Life Sciences (2010- ) | ||||||
| Library of Congress Subject Headings (LCSH): | Soils -- Phosphorus content, Phosphorus in agriculture, Organophosphorus compounds -- Environmental aspects | ||||||
| Journal or Publication Title: | Scientific Reports | ||||||
| Publisher: | Nature Publishing Group | ||||||
| ISSN: | 2045-2322 | ||||||
| Official Date: | 19 May 2017 | ||||||
| Dates: |
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| Volume: | 7 | ||||||
| Number: | 1 | ||||||
| Article Number: | 2179 | ||||||
| DOI: | 10.1038/s41598-017-02327-6 | ||||||
| Status: | Peer Reviewed | ||||||
| Publication Status: | Published | ||||||
| Access rights to Published version: | Open Access | ||||||
| Funder: | Biotechnology and Biological Sciences Research Council (Great Britain) (BBSRC) | ||||||
| Grant number: | BB/L026074/1 | ||||||
| Adapted As: |
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