LA ENPRENO DE STRONTIO EN KOKOLITOFOROJ |
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| Authors: | LEWIN RALPH A; CHOW T J |
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| Institution: | Laboratorio por Marbiologio, Woo?s Hole, Mcssachusetts kaj Teknologia inslituto de California Pasadena, California |
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| Abstract: | Pure cultures of the coccolithophorid Syracosphaera carleraewere grown in a synthetic saline medium containing 3.4mM Ca++and 2.0, 1.0, 0.5 or 0.0 mM Sr++. The coccoliths were separatedby differential centrifugation, washed, dried, and examinedby flame photometry and by X-ray diffraction. In the absenceof Sr, they consisted of pure calcite. In media containing Sr,the concentration factor or incorporation factor (Sr/Ca in coccolithsSr/Ca in medium) was approx. 0.02 in each case, indicating ahigh degree of discrimination against Sr.
1 Nuna adreso: Scripps Instituto por Oceanografio, La Jolla,California, U. S. A. (Received March 4, 1961; ) |
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