Vitamin B12 and Marine Ecology: The Response of Monochrysis Lutheri
- 1 February 1961
- journal article
- research article
- Published by Cambridge University Press (CUP) in Journal of the Marine Biological Association of the United Kingdom
- Vol. 41 (1) , 69-76
- https://doi.org/10.1017/s002531540000151x
Abstract
Yield of the supra-littoral chrysomonad Monochrysis lutheri varied directly as vitamin B12 concentration between the limits 0·1 and 100 μμg/ml., each μμg of vitamin supporting 0·55 × 106 cells. Between the same limits of concentration there was to be seen no significant deviation in initial rate of cell division from the mean value of 1·1 divisions per day (phototrophic growth: 2000 lux, 20° and 15° C), the conclusion being that limitation of the division rate does not occur before the concentration vitamin B12 has dropped below 0·1 μμg/ml.Keywords
This publication has 5 references indexed in Scilit:
- B12-Vitamins and Growth of the Flagellate Ochromonas malhamensisJournal of General Microbiology, 1958
- Requirement for Thiamine Among Some Marine and Supra-Littoral ProtistaJournal of the Marine Biological Association of the United Kingdom, 1958
- Growing Ochromonas malhamensis Above 35°C.*The Journal of Protozoology, 1957
- Vitamin B12 in Marine EcologyNature, 1957
- Vitamin B12 in Marine EcologyNature, 1957