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International Journal on Algae
SJR: 0.216 SNIP: 0.322 CiteScore™: 0.4

ISSN Imprimer: 1521-9429
ISSN En ligne: 1940-4328

International Journal on Algae

DOI: 10.1615/InterJAlgae.v11.i2.50
pages 151-162

Catalase activity of Black Sea kelp from genus Cystoseira C. Ag. under different ecological conditions

O. A. Shakhmatova
A.O. Kovalevsky Institute of Biology of the Southern Seas, 2, Nakhimov Ave., Sevastopol 299011, Crimea
N. A. Mil'chakova
A.O. Kovalevsky Institute of Biology of Southern Seas, National Academy of Sciences of Ukraine, 2, Nakhimova Pr., 99011 Sevastopol, Ukraine


Seasonal dynamics and variability of catalase activity (CA) of the Black Sea algae Cystoseira crinita (Desf.) Bory and C. barbata C. Ag. were investigated at a depth range of 1−10 m where they are dominants. CA of investigated species decreased with depth: in C. crinita from 450 to 12 mkg H2O2/g tissue·min, and in C. barbata from 250 to 1.7 mkg H2O2/tissue·min. Maximal values of CA in C. crinita were recorded at a depth of 1 m in spring, and at 3−5 m in winter. In C. barbata CA maximal values were fixed at a depth of 3−5 m irrespective of seasons. The closest similarity of the CA values in studied species was observed in spring, probably due to the process of reproduction. CA response on anthropogenic pollution was not clear, however, a certain tendency towards a decrease of CA in studied species has been observed.

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