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Hydrobiological Journal
SJR: 0.227 SNIP: 0.901 CiteScore™: 0.5

ISSN Print: 0018-8166
ISSN Online: 1943-5991

Hydrobiological Journal

DOI: 10.1615/HydrobJ.v35.i3.80
pages 79-92

Influence of Magnesium Salts on Growth and Physiological Characteristics of a Blue-green Alga of the Genus Oscillatoria Vauch. under Conditions of Different

O. K. Voronova
Institute of Biology of the Southern Seas, National Academy of Sciences of Ukraine, Sevastopol, Ukraine
T. V. Traschenko
Institute of Biology of the Southern Seas, National Academy of Sciences of Ukraine, Sevastopol; and Dnepropetrovsk State University, Ukraine
N. V. Fomin
Institute of Biology of the Southern Seas, National Academy of Sciences of Ukraine, Sevastopol; and Dnepropetrovsk State University, Ukraine

ABSTRACT

The magnesium requirement of the alga Oscillatoria Vauch. is strongly determined of each concrete density of light flow, and increase with down-fall of light intensity within the interval 275−0 μE/m2·sec−1. The highest values of growth and biomass are observed at the highest values of light intensity and C:Mg ratio in nutrient solution. The increasing of algae magnesium requirements in the interval 275−26 μE/m2·sec−1 is connected with need of dark respiration and photosynthesis stimulation at down-fall of light flow.


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