Functions of coccolith formation
Measurements of discrimination in fixation of stable carbon isotopes by two species of coccolithophorids support the concept that coccolith formation depends on a supply of HCO3 -but that CO2is the principal substrate of photosynthesis. This in turn suggests that coccolith formation and photosynthes...
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| Veröffentlicht in: | Limnology and oceanography 1982, Vol.27 (1), p.18-26 |
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| container_title | Limnology and oceanography |
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| creator | Sikes, C.S Wilbur, K.M |
| description | Measurements of discrimination in fixation of stable carbon isotopes by two species of coccolithophorids support the concept that coccolith formation depends on a supply of HCO3
-but that CO2is the principal substrate of photosynthesis. This in turn suggests that coccolith formation and photosynthesis are linked through their complementary influence on the internal equilibrium of dissolved inorganic carbon. Measurements of osmotic responses and transmembrane potential differences of calcified and noncalcified cells showed that although coccolithophorids behaved as if they were walled cells, the coccoliths themselves did not always contribute to this property. Also coccoliths did not protect cells from predation by marine copepods, which fed equally on calcified and noncalcified cells. The presence of a coccosphere did, however, seem to impart a greater tolerance to low salinity, allowing calcified cells to grow when noncalcified cells did not. |
| doi_str_mv | 10.4319/lo.1982.27.1.0018 |
| format | Article |
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| fulltext | fulltext |
| identifier | ISSN: 0024-3590 |
| ispartof | Limnology and oceanography, 1982, Vol.27 (1), p.18-26 |
| issn | 0024-3590 1939-5590 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_15442695 |
| source | Jstor Complete Legacy; EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection |
| subjects | Algae Animal cells aquatic organisms Carbon dioxide Cell growth Cell membranes Cell walls Coccolithophoridaceae Coccolithophoridae Dyes Marine Photosynthesis plant biochemistry plant physiology Plants Salinity |
| title | Functions of coccolith formation |
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