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Details van artikel 16 van 17 gevonden artikelen
| Titel: |
The influence of microamounts of organic substances other than vitamins on the growth of some red algae in axenic culture |
| Auteur: |
Fries, Lisbeth |
| Verschenen in: |
European journal of phycology |
| Paginering: | Jaargang 5 (1970) nr. 1 pagina's 39-46 |
| Jaar: |
1970-04-30 |
| Inhoud: |
Several red algae in axenic culture decline in artificial seawater after a period of cultivation. Nemalion helminthoides rapidly loses its brown-red colour and grows with longer and thinner threads. Extracts of contaminated red algae, or nutrient medium in which they have grown, as well as fresh seawater from the Fucus-Ascophyllum zone, enhance growth and restore the pigmentation of the cells. Addition of 40 mg Bacto-Casamino acids per litre of nutrient medium had the same effect. After fractional precipitation with ethyl alcohol and separation on a Sephadex column the activity was localised to a peptide fraction. Results from chromatography point to effects from a low molecular weight substance active alone or coupled to a peptide. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 16 van 17 gevonden artikelen
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