Barium partitioning in coccoliths of Emiliania huxleyi

Gerald Langer; Gernot Nehrke; Silke Thoms; Heather Stoll

doi:10.1016/j.gca.2009.02.025

Barium partitioning in coccoliths of Emiliania huxleyi

Gerald Langer, Gernot Nehrke, Silke Thoms, Heather Stoll

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The coccolithophore Emiliania huxleyi was grown in seawater under different Ba concentrations. The relationship of coccolith Ba/Ca ratio and seawater Ba/Ca ratio was found to be linear. The linear regression yields the apparent Ba exchange coefficient of 0.10. Our data support a recently proposed generic model (Langer G., Gussone N., Nehrke G., Riebesell U., Eisenhauer A., Kuhnert H., Rost B., Trimborn S., and Thoms S. (2006) Coccolith strontium to calcium ratios in Emiliania huxleyi: the dependence on seawater strontium and calcium concentrations. Limnol. Oceanogr. 51, 310-320.) developed for explaining apparent exchange coefficients of metabolically inert divalent trace metals, such as Sr, in E. huxleyi. This model represents the first approach combining cell physiological processes and data from inorganic precipitation experiments, which quantitatively explains coccolith apparent Sr and Ba exchange coefficients. © 2009 Elsevier Ltd. All rights reserved.

Idioma original	Anglès
Pàgines (de-a)	2899-2906
Revista	Geochimica et Cosmochimica Acta
Volum	73
Número	10
DOIs	https://doi.org/10.1016/j.gca.2009.02.025
Estat de la publicació	Publicada - 15 de maig 2009

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10.1016/j.gca.2009.02.025

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title = "Barium partitioning in coccoliths of Emiliania huxleyi",

abstract = "The coccolithophore Emiliania huxleyi was grown in seawater under different Ba concentrations. The relationship of coccolith Ba/Ca ratio and seawater Ba/Ca ratio was found to be linear. The linear regression yields the apparent Ba exchange coefficient of 0.10. Our data support a recently proposed generic model (Langer G., Gussone N., Nehrke G., Riebesell U., Eisenhauer A., Kuhnert H., Rost B., Trimborn S., and Thoms S. (2006) Coccolith strontium to calcium ratios in Emiliania huxleyi: the dependence on seawater strontium and calcium concentrations. Limnol. Oceanogr. 51, 310-320.) developed for explaining apparent exchange coefficients of metabolically inert divalent trace metals, such as Sr, in E. huxleyi. This model represents the first approach combining cell physiological processes and data from inorganic precipitation experiments, which quantitatively explains coccolith apparent Sr and Ba exchange coefficients. {\textcopyright} 2009 Elsevier Ltd. All rights reserved.",

author = "Gerald Langer and Gernot Nehrke and Silke Thoms and Heather Stoll",

year = "2009",

month = may,

day = "15",

doi = "10.1016/j.gca.2009.02.025",

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journal = "Geochimica et Cosmochimica Acta",

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T1 - Barium partitioning in coccoliths of Emiliania huxleyi

AU - Langer, Gerald

AU - Nehrke, Gernot

AU - Thoms, Silke

AU - Stoll, Heather

PY - 2009/5/15

Y1 - 2009/5/15

N2 - The coccolithophore Emiliania huxleyi was grown in seawater under different Ba concentrations. The relationship of coccolith Ba/Ca ratio and seawater Ba/Ca ratio was found to be linear. The linear regression yields the apparent Ba exchange coefficient of 0.10. Our data support a recently proposed generic model (Langer G., Gussone N., Nehrke G., Riebesell U., Eisenhauer A., Kuhnert H., Rost B., Trimborn S., and Thoms S. (2006) Coccolith strontium to calcium ratios in Emiliania huxleyi: the dependence on seawater strontium and calcium concentrations. Limnol. Oceanogr. 51, 310-320.) developed for explaining apparent exchange coefficients of metabolically inert divalent trace metals, such as Sr, in E. huxleyi. This model represents the first approach combining cell physiological processes and data from inorganic precipitation experiments, which quantitatively explains coccolith apparent Sr and Ba exchange coefficients. © 2009 Elsevier Ltd. All rights reserved.

AB - The coccolithophore Emiliania huxleyi was grown in seawater under different Ba concentrations. The relationship of coccolith Ba/Ca ratio and seawater Ba/Ca ratio was found to be linear. The linear regression yields the apparent Ba exchange coefficient of 0.10. Our data support a recently proposed generic model (Langer G., Gussone N., Nehrke G., Riebesell U., Eisenhauer A., Kuhnert H., Rost B., Trimborn S., and Thoms S. (2006) Coccolith strontium to calcium ratios in Emiliania huxleyi: the dependence on seawater strontium and calcium concentrations. Limnol. Oceanogr. 51, 310-320.) developed for explaining apparent exchange coefficients of metabolically inert divalent trace metals, such as Sr, in E. huxleyi. This model represents the first approach combining cell physiological processes and data from inorganic precipitation experiments, which quantitatively explains coccolith apparent Sr and Ba exchange coefficients. © 2009 Elsevier Ltd. All rights reserved.

U2 - 10.1016/j.gca.2009.02.025

DO - 10.1016/j.gca.2009.02.025

M3 - Article

SN - 0016-7037

VL - 73

SP - 2899

EP - 2906

JO - Geochimica et Cosmochimica Acta

JF - Geochimica et Cosmochimica Acta

IS - 10

ER -

Barium partitioning in coccoliths of Emiliania huxleyi

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