ISSN:
1574-6968
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Biology
Notes:
The filamentous, non-heterocytous, nitrogen-fixing cyanobacterium Oscillatoria sp. strain 23 (Oldenburg) showed cycling of acetylene reduction in light-dark cycles. Under aerobic conditions nitrogenase activity is exclusively present during the dark period. However, if anaerobic conditions were applied during the dark period, two activity maxima were observed. A relatively small activity peak occurred during the first few hours of the dark period and a high peak as soon as the light was switched on. A low activity remained during the second half of the dark period. This pattern of acetylene reduction in Oscillatoria agrees well with the field data on nitrogen fixation [Stal, L.J. and Krumbein, W.E. (1984), Mar. Biol. 82, 217–224].
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1574-6968.1987.tb02360.x
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