Abstract
A new method is presented that enables distinguishing between active and non-active cells with regard to biogenic silica deposition during frustule formation in natural communities of siliceous phytoplankton. The PDMPO method is based on the fluorescence of biogenic silica after incubation with the probe. Only those cells that have been depositing silica (by adjunction of intercalary plates during the cell cycle or by depositing a new frustule valve upon cell division) exhibit a typical fluorescence that is proportional to the amount of biogenic silica deposited. This new method has several advantages; it is easy to use at sea, very sensitive, and samples can be conserved for several months without major loss of fluorescence. This method offers new possibilities of investigation of ecophysiological controls within the natural diatom community and will also bring more information to the new generation of sophisticated multi-element multi-species biogeochemical models.
Original language | English |
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Title of host publication | Global change |
Subtitle of host publication | mankind-marine environment interactions |
Editors | Hubert-Jean Ceccaldi, Ivan Dekeyser, Mathias Girault, Georges Stora |
Place of Publication | Dordrecht |
Publisher | Springer, Springer Nature |
Pages | 283-287 |
Number of pages | 5 |
ISBN (Electronic) | 9789048186303 |
ISBN (Print) | 9789048186297 |
DOIs | |
Publication status | Published - 2011 |
Externally published | Yes |
Event | 13th French-Japanese Oceanography Symposium - Marseille, France Duration: 8 Sept 2008 → 12 Sept 2008 |
Conference
Conference | 13th French-Japanese Oceanography Symposium |
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Country/Territory | France |
City | Marseille |
Period | 8/09/08 → 12/09/08 |
Keywords
- NORTHERN ADRIATIC SEA
- FRESH-WATER INPUTS
- P-SI RATIOS
- BREST FRANCE
- PHYTOPLANKTON COMMUNITIES
- MACROTIDAL ECOSYSTEMS
- BIOGENIC SILICA
- DEPOSITION
- BAY
- IMPACTS