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Buch ; Online: Oxygen Isotopes of Inorganic Phosphate in Environmental Samples

Adu-Gyamfi, Joseph / Pfahler, Verena

Purification and Analysis

2022

Verfasserangabe	edited by Joseph Adu-Gyamfi, Verena Pfahler
Schlagwörter	Environmental management ; Environmental monitoring ; Water ; Hydrology ; Agriculture ; Pollution ; Inorganic chemistry
Thema/Rubrik (Code)	333.7
Sprache	Englisch
Umfang	1 Online-Ressource (VII, 64 p. 9 illus., 6 illus. in color)
Ausgabenhinweis	1st ed. 2022
Verlag	Springer International Publishing ; Imprint: Springer
Erscheinungsort	Cham
Dokumenttyp	Buch ; Online
HBZ-ID	HT021361058
ISBN	978-3-030-97497-8 ; 9783030974961 ; 9783030974985 ; 9783030974992 ; 3-030-97497-9 ; 3030974960 ; 3030974987 ; 3030974995
DOI	10.1007/978-3-030-97497-8
Datenquelle	ZB MED Katalog Medizin, Gesundheit, Ernährung, Umwelt, Agrar

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Buch ; Online: Oxygen Isotopes of Inorganic Phosphate in Environmental Samples

Adu-Gyamfi, Joseph / Pfahler, Verena

Purification and Analysis

2022

Schlagwörter	Environmental management ; Environmental monitoring ; Analytical chemistry ; Hydrology & the hydrosphere ; Agricultural science ; Pollution & threats to the environment ; Environment ; Phosphorus ; Water Quality and Groundwater ; Stable Isotopes ; Protocol and Environmental P cycle ; Fertilizer and Microbes ; Water Quality and Pollution
Sprache	0\|e
Umfang	1 electronic resource (64 pages)
Verlag	Springer Nature
Erscheinungsort	Cham
Dokumenttyp	Buch ; Online
Anmerkung	English ; Open Access
HBZ-ID	HT021614026
ISBN	9783030974978 ; 3030974979
Datenquelle	ZB MED Katalog Medizin, Gesundheit, Ernährung, Umwelt, Agrar

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Artikel: A review of phosphate oxygen isotope values in global bedrocks: Characterising a critical endmember to the soil phosphorus system

Smith, Andrew C / Pfahler, Verena / Tamburini, Federica / Blackwell, Martin S. A / Granger, Steven J

Journal of plant nutrition and soil science. 2021 Feb., v. 184, no. 1

2021

Abstract: Understanding the phosphate oxygen isotope (δ¹⁸O‐PO₄) composition of bedrock phosphate sources is becoming ever more important, especially in areas of soil research which use this isotope signature as a proxy for biological cycling of phosphorus (P). For ...

Abstract	Understanding the phosphate oxygen isotope (δ¹⁸O‐PO₄) composition of bedrock phosphate sources is becoming ever more important, especially in areas of soil research which use this isotope signature as a proxy for biological cycling of phosphorus (P). For many of these studies, obtaining a sample of the source bedrock or applied mineral fertiliser for isotope analysis is impossible; meaning there is now a demand for a comprehensive characterisation of global bedrock δ¹⁸O‐PO₄ to support this work. Here we compile δ¹⁸O‐PO₄ data from a wide range of global bedrocks, including 56 new values produced as part of this study and a comprehensive overview of those within the previously existing literature. We present δ¹⁸O‐PO₄ data from the range of major phosphatic lithologies alongside as much metadata for the samples as could be gathered. Much of the data comes from bedrocks of marine sedimentary origin (< 1 Ma = > +22‰, > 540 Ma = ≈ +12‰), but we also present data from bedrocks associated with guano (range: +19.5 to +15‰) and igneous deposits (range: +12 to –0.8‰), both of which have distinct δ¹⁸O‐PO₄ signatures due to their formation mechanisms. We show that where repeat measurements of the same formation have been undertaken, regardless of method or exact sample location, there is an average within formation error of ± 1.25‰. This is important, as is constitutes a reasonable level of uncertainty for phosphorus cycling studies which need to estimate bedrock δ¹⁸O‐PO₄ composition based on the literature. In combination, this data set presents 284 δ¹⁸O‐PO₄ values from 56 countries; a comprehensive starting point for researchers interested in understanding bedrock end member δ¹⁸O‐PO₄.
Schlagwörter	animal manures ; bedrock ; data collection ; lithology ; metadata ; mineral fertilizers ; oxygen isotopes ; phosphates ; phosphorus ; plant nutrition ; soil ; uncertainty
Sprache	Englisch
Erscheinungsverlauf	2021-02
Umfang	p. 25-34.
Erscheinungsort	John Wiley & Sons, Ltd
Dokumenttyp	Artikel
Anmerkung	NAL-AP-2-clean ; REVIEW
ISSN	1436-8730
DOI	10.1002/jpln.202000513
Datenquelle	NAL Katalog (AGRICOLA)

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Artikel: A dual isotopic approach using radioactive phosphorus and the isotopic composition of oxygen associated to phosphorus to understand plant reaction to a change in P nutrition.

Pfahler, Verena / Tamburini, Federica / Bernasconi, Stefano M / Frossard, Emmanuel

Plant methods

2017 Band 13, Seite(n) 75

Abstract: Background: Changing the phosphorus (P) nutrition leads to changes in plant metabolism. The aim of this study was to investigate how these changes are reflected in the distribution of : Results: The δ: Conclusions: Omitting P for 10 days lead to a ...

Abstract	Background: Changing the phosphorus (P) nutrition leads to changes in plant metabolism. The aim of this study was to investigate how these changes are reflected in the distribution of Results: The δ Conclusions: Omitting P for 10 days lead to a translocation of P from source to sink organs in soybeans. This was accompanied by a significant lowering of the δ
Sprache	Englisch
Erscheinungsdatum	2017-09-25
Erscheinungsland	England
Dokumenttyp	Journal Article
ISSN	1746-4811
ISSN	1746-4811
DOI	10.1186/s13007-017-0227-x
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel ; Online: Changes of oxygen isotope values of soil P pools associated with changes in soil pH.

Pfahler, Verena / Macdonald, Andy / Mead, Andrew / Smith, Andrew C / Tamburini, Federica / Blackwell, Martin S A / Granger, Steven J

Scientific reports

2020 Band 10, Heft 1, Seite(n) 2065

Abstract: Field data about the effect of soil pH on phosphorus (P) cycling is limited. A promising tool to study P cycling under field conditions is ... ...

Abstract	Field data about the effect of soil pH on phosphorus (P) cycling is limited. A promising tool to study P cycling under field conditions is the
Sprache	Englisch
Erscheinungsdatum	2020-02-07
Erscheinungsland	England
Dokumenttyp	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2615211-3
ISSN	2045-2322 ; 2045-2322
ISSN (online)	2045-2322
ISSN	2045-2322
DOI	10.1038/s41598-020-59103-2
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel: A dual isotopic approach using radioactive phosphorus and the isotopic composition of oxygen associated to phosphorus to understand plant reaction to a change in P nutrition

Pfahler, Verena / Federica Tamburini / Stefano M. Bernasconi / Emmanuel Frossard

Plant methods. 2017 Dec., v. 13, no. 1

2017

Abstract: BACKGROUND: Changing the phosphorus (P) nutrition leads to changes in plant metabolism. The aim of this study was to investigate how these changes are reflected in the distribution of ³³P and the isotopic composition of oxygen associated to P (δ¹⁸OP) in ... ...

Abstract	BACKGROUND: Changing the phosphorus (P) nutrition leads to changes in plant metabolism. The aim of this study was to investigate how these changes are reflected in the distribution of ³³P and the isotopic composition of oxygen associated to P (δ¹⁸OP) in different plant parts of soybean (Glycine max cv. Toliman). Two P pools were extracted sequentially with 0.3 M trichloroacetic acid (TCA P) and 10 M nitric acid (HNO₃; residual P). RESULTS: The δ¹⁸OP of TCA P in the old leaves of the − P plants (23.8‰) significantly decreased compared to the + P plants (27.4‰). The ³³P data point to an enhanced mobilisation of P from residual P in the old leaves of the − P plants compared to the + P plants. CONCLUSIONS: Omitting P for 10 days lead to a translocation of P from source to sink organs in soybeans. This was accompanied by a significant lowering of the δ¹⁸OP of TCA P in the source organs due to the enzymatic hydrolysis of organic P. Combining ³³P and δ¹⁸OP can provide useful insights in plant responses to P omission at an early stage.
Schlagwörter	Glycine max ; enzymatic hydrolysis ; leaves ; metabolism ; nitric acid ; nutrition ; oxygen ; phosphorus ; plant response ; soybeans ; trichloroacetic acid
Sprache	Englisch
Erscheinungsverlauf	2017-12
Umfang	p. 75.
Erscheinungsort	BioMed Central
Dokumenttyp	Artikel
ISSN	1746-4811
DOI	10.1186/s13007-017-0227-x
Datenquelle	NAL Katalog (AGRICOLA)

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Artikel: Genotype-Specific Differences in Phosphorus Efficiency of Potato (

Wacker-Fester, Katrin / Uptmoor, Ralf / Pfahler, Verena / Dehmer, Klaus J / Bachmann-Pfabe, Silvia / Kavka, Mareike

Frontiers in plant science

2019 Band 10, Seite(n) 1029

Abstract: Potato is considered to have a low phosphorus (P) efficiency compared to other crops. Therefore, P fertilization requirements are high. New cultivars with improved P efficiency may contribute to save limited mineral P sources and to reduce eutrophication ...

Abstract	Potato is considered to have a low phosphorus (P) efficiency compared to other crops. Therefore, P fertilization requirements are high. New cultivars with improved P efficiency may contribute to save limited mineral P sources and to reduce eutrophication of surface water bodies. The present study aims to characterize the P efficiency of different potato genotypes and to identify mechanisms that improve P efficiency in cultivated potato. A diversity set of 32 potato accessions was used to assess their P efficiency. From this set, five cultivars were selected and two pot experiments with different P-fertilization strategies including a non-fertilized control were conducted to estimate effects of P deficiency on general agronomic and P related traits, root development, phosphatase activity and micro RNA 399 (miR399) expression. Significant differences between the 32 genotypes were found for P utilization efficiency (PUtE). P acquisition efficiency (PAE) as P content in low P in relation to P content in high P was positively correlated to relative biomass production while PUtE was not. Selected genotypes displayed a strong relation between total root length and P content. Root phosphatase activity and miR399 expression increased under P deficiency. However, tuber yields of four cultivars, grown on a soil with suboptimal content of plant available P, were not significantly affected in comparison to yields of well-fertilized plots. We conclude from the present study that PUtE and PAE are important traits when selecting for plants requiring less fertilizer inputs but PAE might be more important for cropping on deficient soils. A large root system might be the most important trait for P acquisition on such soils and therefore in breeding for P efficient crops. Lowering P fertilizer inputs might not necessarily reduce tuber yields.
Sprache	Englisch
Erscheinungsdatum	2019-08-16
Erscheinungsland	Switzerland
Dokumenttyp	Journal Article
ZDB-ID	2711035-7
ISSN	1664-462X
ISSN	1664-462X
DOI	10.3389/fpls.2019.01029
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel ; Online: A rapid ammonium fluoride method to determine the oxygen isotope ratio of available phosphorus in tropical soils.

Pfahler, Verena / Bielnicka, Aleksandra / Smith, Andrew C / Granger, Steven J / Blackwell, Martin S A / Turner, Benjamin L

Rapid communications in mass spectrometry : RCM

2019 Band 34, Heft 7, Seite(n) e8647

Abstract: Rationale: The isotopic composition of oxygen bound to phosphorus (δ: Methods: We compared P concentrations and δ: Results: Depending on the extraction conditions, Bray-1 P concentrations ranged from 0.2 to 66.3 mg P kg: Conclusions: The short ... ...

Abstract	Rationale: The isotopic composition of oxygen bound to phosphorus (δ Methods: We compared P concentrations and δ Results: Depending on the extraction conditions, Bray-1 P concentrations ranged from 0.2 to 66.3 mg P kg Conclusions: The short extraction time, insensitivity to extraction conditions and smaller mass of soil required to extract sufficient P for isotopic analysis make Bray-1extraction a suitable alternative to the AEM method for the determination of δ
Mesh-Begriff(e)	Algorithms ; Ammonium Compounds/chemistry ; Environmental Monitoring/methods ; Fluorides/chemistry ; Forests ; Mass Spectrometry/methods ; Oxygen Isotopes/analysis ; Phosphorus/analysis ; Soil/chemistry ; Tropical Climate
Chemische Substanzen	Ammonium Compounds ; Oxygen Isotopes ; Oxygen-18 ; Soil ; Phosphorus (27YLU75U4W) ; ammonium fluoride (4QT928IM0A) ; Fluorides (Q80VPU408O)
Sprache	Englisch
Erscheinungsdatum	2019-11-05
Erscheinungsland	England
Dokumenttyp	Journal Article
ZDB-ID	58731-x
ISSN	1097-0231 ; 0951-4198
ISSN (online)	1097-0231
ISSN	0951-4198
DOI	10.1002/rcm.8647
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel: Oxygen Isotopes for Unraveling Phosphorus Transformations in the Soil–Plant System: A Review

Tamburini, Federica / Pfahler, Verena / von Sperber, Christian / Frossard, Emmanuel / Bernasconi, Stefano M

Soil Science Society of America journal. 2014 Jan., v. 78, no. 1

2014

Abstract: Phosphorus is a major nutrient for all living organisms. In the terrestrial environment, P is considered a double-edged sword. In some areas, agricultural production is strongly limited by the low soil P availability, while in others, P inputs in excess ... ...

Abstract	Phosphorus is a major nutrient for all living organisms. In the terrestrial environment, P is considered a double-edged sword. In some areas, agricultural production is strongly limited by the low soil P availability, while in others, P inputs in excess of plant needs have resulted in pollution of water bodies. A better understanding of soil–plant P cycling is needed to provide agricultural and environmental managers with better concepts for P use. Together with the routine analysis of soil available P, the determination of P chemical forms, and the use of P radioisotopes, researchers have recently started using the ratio of stable oxygen isotopes in phosphate (δ18O-P). The scientific community interested in using this isotopic tracer is slowly but steadily expanding because δ18O-P has proven to provide important information on biological processes influencing the P cycle and it could be used to trace the origin and fate of P in soil–plant systems. This review examines the published results and compiles the available data relevant for soil–plant systems, pinpoints gaps in analytical techniques and knowledge, and suggests key questions and topics to be investigated.
Schlagwörter	analytical methods ; oxygen isotopes ; phosphates ; phosphorus ; radionuclides ; soil ; surface water ; water pollution
Sprache	Englisch
Erscheinungsverlauf	2014-01
Umfang	p. 38-46.
Erscheinungsort	The Soil Science Society of America, Inc.
Dokumenttyp	Artikel
Anmerkung	epub
ZDB-ID	196788-5
ISSN	0361-5995
ISSN	0361-5995
DOI	10.2136/sssaj2013.05.0186dgs
Datenquelle	NAL Katalog (AGRICOLA)

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Artikel ; Online: The oxygen isotopic composition of phosphate in river water and its potential sources in the Upper River Taw catchment, UK.

Granger, Steven J / Heaton, Tim H E / Pfahler, Verena / Blackwell, Martin S A / Yuan, Huimin / Collins, Adrian L

The Science of the total environment

2016 Band 574, Seite(n) 680–690

Abstract: The need to reduce both point and diffuse phosphorus pollution to aquatic ecosystems is widely recognised and in order to achieve this, identification of the different pollutant sources is essential. Recently, a stable isotope approach using oxygen ... ...

Abstract	The need to reduce both point and diffuse phosphorus pollution to aquatic ecosystems is widely recognised and in order to achieve this, identification of the different pollutant sources is essential. Recently, a stable isotope approach using oxygen isotopes within phosphate (δ
Sprache	Englisch
Erscheinungsdatum	2016-10-14
Erscheinungsland	Netherlands
Dokumenttyp	Journal Article
ZDB-ID	121506-1
ISSN	1879-1026 ; 0048-9697
ISSN (online)	1879-1026
ISSN	0048-9697
DOI	10.1016/j.scitotenv.2016.09.007
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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