Stickstoff-Ausscheidung durch N2-fixierende Blaualgen, I

P. Pohl, G. Drath
1973 Zeitschrift für Naturforschung C - A Journal of Biosciences  
The nitrogen fixing blue-green algae, Anabaena cylindrica and Nostoc muscorum , were grown as 71 cultures in various media, at different temperatures (15 °C and 23 °C ), and under light of different wavelengths. In all cases, the amount of combined nitrogen excreted into the medium readied a value of 700 - 800 μMol N/1 of nutrient medium after 4 -6 weeks of growth. Thereafter, this value did not increase significantly. When several cultures of algae were successively grown in the same medium,
more » ... the same medium, or when culturing was carried out for a long time with frequent harvesting, the nitrogen content of the nutrient medium remained at approximately the same level as mentioned. The possible reasons for these observations are discussed.
doi:10.1515/znc-1973-5-609 fatcat:hqdgha5fczc2bk6prlawa7mfni