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Chemical compositio...
Chemical composition and alkaline phosphatase activity of nutrient-saturated and P-deficient cells of four marine dinoflagellates
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- Sakshaug, E (författare)
- Trondhjem Biological Station, University of Trondheim, Trondheim, Norway
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- Graneli, Edna (författare)
- Department of Marine Botany, University of Lund, Lund, Sweden
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- Elbrächter, M (författare)
- Biologische Anstalt Helgoland, Litoralstation List/Sylt, FRG
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- Kayser, H (författare)
- Biologische Anstalt Helgoland, Litoralstation List/Sylt, FRG
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(creator_code:org_t)
- Elsevier BV, 1984
- 1984
- Engelska.
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Ingår i: Journal of Experimental Marine Biology and Ecology. - : Elsevier BV. - 0022-0981 .- 1879-1697. ; 77, s. 241-254
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Four marine dinoflagellates, Amphidinium carterae Hulburt, Ceratium tripos (O.F. Müll.) Nitzsch, Prorocentrum minimum (Pav.) J. Schiller, and Scrippsiella trochoidea (Stein) Loeblich III were grown as dilution cultures at 18°C, S = 29%. and 30 μE·m−2·s−1 at L:D = 14:10 h. In nutrient-saturated cultures, the growth rates (doubl·day−1) ranged from 0.38 for Scrippsiella to 0.80 for Prorocentrum, and carbon content (pg·cell−1) from 83 for Amphidinium to 6900 for Ceratium. The atomic N/C ratio was 0.13–0.15, but for Ceratium it was 0.088, because of its thick, cellulose theca. The atomic N/P ratio ranged from 12–13 for Ceratium and Scrippsiella to 15–17 for Prorocentrum and Amphidinium. Under P-deficient conditions (growth rate 39–70% of the maximum), cellular P decreased considerably, but so did N, so that the N/P ratio was only slightly affected. There was a concomitant increase in carbon content per cell of 1.2- to 1.7-fold. Alkaline phosphatase activity was virtually nil in nutrient-saturated cells, but was readily demonstrable in all species when P-deficient.
Ämnesord
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
Nyckelord
- Terrestrial, freshwater and marine ecology
- Terrestrisk, limnisk och marin ekologi
- Aquatic Ecology
- Akvatisk ekologi
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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