Marine polyphosphate: A key player in geologic phosphorus sequestration

被引：209

作者：

Diaz, Julia ^{[1
]}

Ingall, Ellery ^{[1
]}

Benitez-Nelson, Claudia ^{[2
,3
]}

Paterson, David ^{[4
]}

de Jonge, Martin D. ^{[4
]}

McNulty, Ian ^{[4
]}

Brandes, Jay A. ^{[5
]}

机构：

[1] Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30332 USA

[2] Univ S Carolina, Marine Sci Program, Columbia, SC 29208 USA

[3] Univ S Carolina, Dept Geol Sci, Columbia, SC 29208 USA

[4] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA

[5] Skidaway Inst Oceanog, Savannah, GA 31411 USA

来源：

SCIENCE | 2008年 / 320卷 / 5876期

关键词：

D O I：

10.1126/science.1151751

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The in situ or authigenic formation of calcium phosphate minerals in marine sediments is a major sink for the vital nutrient phosphorus. However, because typical sediment chemistry is not kinetically conducive to the precipitation of these minerals, the mechanism behind their formation has remained a fundamental mystery. Here, we present evidence from high- sensitivity x- ray and electrodialysis techniques to describe a mechanism by which abundant diatom- derived polyphosphates play a critical role in the formation of calcium phosphate minerals in marine sediments. This mechanism can explain the puzzlingly dispersed distribution of calcium phosphate minerals observed in marine sediments worldwide.

引用

页码：652 / 655

页数：4

共 25 条

[1]

AIGEO TJ, 2007, PALAEOGEOGR PALAEOCL, V256, P130

[2] A new, mechanistic model for organic carbon fluxes in the ocean based on the quantitative association of POC with ballast minerals [J].

Armstrong, RA ;

Lee, C ;

Hedges, JI ;

Honjo, S ;

Wakeham, SG .

DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY, 2001, 49 (1-3) :219-236

[3] The biogeochemical cycling of phosphorus in marine systems [J].

Benitez-Nelson, CR .

EARTH-SCIENCE REVIEWS, 2000, 51 (1-4) :109-135

[4] Accelerated dissolution of diatom silica by marine bacterial assemblages [J].

Bidle, KD ;

Azam, F .

NATURE, 1999, 397 (6719) :508-512

[5] Characterization of minerals and organic phosphorus species in marine sediments using soft X-ray fluorescence spectromicroscopy [J].

Brandes, Jay A. ;

Ingall, Ellery ;

Paterson, David .

MARINE CHEMISTRY, 2007, 103 (3-4) :250-265

[6] Inorganic polyphosphate in the origin and survival of species [J].

Brown, MRW ;

Kornberg, A .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2004, 101 (46) :16085-16087

[7] Marine phosphorus is selectively remineralized [J].

Clark, LL ;

Ingall, ED ;

Benner, R .

NATURE, 1998, 393 (6684) :426-426

[8] Marine organic phosphorus cycling: Novel insights from nuclear magnetic resonance [J].

Clark, LL ;

Ingall, ED ;

Benner, R .

AMERICAN JOURNAL OF SCIENCE, 1999, 299 (7-9) :724-737

[9]

KARL DM, 2002, BIOGEOCHEMISTRY MARI, pCH6

[10] Evolutionary trajectories and biogeochemical impacts of marine eukaryotic phytoplankton [J].

Katz, ME ;

Finkel, ZV ;

Grzebyk, D ;

Knoll, AH ;

Falkowski, PG .

ANNUAL REVIEW OF ECOLOGY EVOLUTION AND SYSTEMATICS, 2004, 35 :523-556

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