NMR and mass spectrometry of phosphorus in wetlands

被引:17
作者
El-Rifai, H. [1 ]
Heerboth, M. [1 ]
Gedris, T. E. [1 ]
Newman, S. [2 ]
Orem, W. [3 ]
Cooper, W. T. [1 ]
机构
[1] Florida State Univ, Dept Chem & Biochem, Tallahassee, FL 32306 USA
[2] S Florida Water Management Dist, Everglades Div, W Palm Beach, FL 33416 USA
[3] US Geol Survey, Reston, VA 20192 USA
关键词
D O I
10.1111/j.1365-2389.2007.01008.x
中图分类号
S15 [土壤学];
学科分类号
0903 ; 090301 ;
摘要
There is at present little information on the long-term stability of phosphorus sequestered in wetlands. Phosphorus sequestered during high loading periods may be relatively unstable and easily remobilized following changes in nutrient status or hydrological regime, but the chemical forms of sequestered phosphorus that do remobilize are largely unknown at this time. A lack of suitable analytical techniques has contributed to this dearth of knowledge regarding the stability of soil organic phosphorus. We analysed phosphorus in soils from the 'head' of Rescue Strand tree island and an adjacent marsh in the Florida Everglades by (31)P nuclear magnetic resonance (NMR) spectroscopy and high-resolution mass spectrometry. Tree islands are important areas of biodiversity within the Everglades and offer a unique opportunity to study phosphorus sequestration because they are exposed to large phosphorus loads and appear to be natural nutrient sinks. The (31)P NMR profiling of extracts from surface and sediment samples in the tree island indicates that phosphorus input to Rescue Strand tree island soils is mostly in the form of inorganic ortho-phosphate and is either refractory when deposited or rapidly recycled by the native vegetation into a stable phosphorus pool largely resistant to re-utilization by plants or microbes. Mass spectrometry revealed the presence of inositol hexakisphosphate, a common organic monophosphate ester not previously observed in Everglades' soils.
引用
收藏
页码:517 / 525
页数:9
相关论文
共 22 条
[1]   Soil and litter phosphorus-31 nuclear magnetic resonance spectroscopy: Extractants, metals, and phosphorus relaxation times [J].
Cade-Menun, BJ ;
Liu, CW ;
Nunlist, R ;
McColl, JG .
JOURNAL OF ENVIRONMENTAL QUALITY, 2002, 31 (02) :457-465
[2]   A comparison of soil extraction procedures for P-31 NMR spectroscopy [J].
Cade-Menun, BJ ;
Preston, CM .
SOIL SCIENCE, 1996, 161 (11) :770-785
[3]   Interaction of inositol hexaphosphate on clays: Adsorption and charging phenomena [J].
Celi, L ;
Lamacchia, S ;
Marsan, FA ;
Barberis, E .
SOIL SCIENCE, 1999, 164 (08) :574-585
[4]  
Cooper W. T., 2007, Inositol phosphates: linking agriculture and the environment, P23, DOI 10.1079/9781845931520.0023
[5]   Mass spectrometry of natural organic phosphorus [J].
Cooper, WT ;
Llewelyn, JM ;
Bennett, GL ;
Salters, VJM .
TALANTA, 2005, 66 (02) :348-358
[6]   On the use of hydrofluoric acid pretreatment of soils for phosphorus-31 nuclear magnetic resonance analyses [J].
Dougherty, Warwick J. ;
Smernik, Ronald J. ;
Bunemann, Else K. ;
Chittleborough, David J. .
SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, 2007, 71 (04) :1111-1118
[7]   SOLUBILITY OF IRON, ALUMINUM, CALCIUM, AND MAGNESIUM INOSITOL PHOSPHATES AT DIFFERENT PH VALUES [J].
JACKMAN, RH ;
BLACK, CA .
SOIL SCIENCE, 1951, 72 (03) :179-186
[8]   Effects of increased phosphorus loading on dissolved oxygen in a subtropical wetland, the Florida Everglades [J].
McCormick, Paul V. ;
Laing, James A. .
WETLANDS ECOLOGY AND MANAGEMENT, 2003, 11 (03) :199-215
[9]   Mapping of phosphorylation sites of gel-isolated proteins by nanoelectrospray tandem mass spectrometry: Potentials and limitations [J].
Neubauer, G ;
Mann, M .
ANALYTICAL CHEMISTRY, 1999, 71 (01) :235-242
[10]  
Orem W. H., 2002, Tree islands of the Everglades, P153