Begell House Inc.
International Journal on Algae
IJA
1521-9429
17
1
2015
Scenedesmus brasiliensis R. Chodat in Scenedesmaceae (Chlorophyta) System
7-13
10.1615/InterJAlgae.v17.i1.10
S. S.
Skrebovskaya
Taras Schevchenko National University of Kiеv, Institute of Biology, 2, Acad. Glushkov Ave., Kiev 03022, Ukraine
I. Yu.
Kostikov
Department of Plant Biology, Institute of Biology and Medicine,
Taras Shevchenko National University of Kiev,
2 Acad. Glushkov Ave., Kiev 03022, Ukraine
P. M.
Tsarenko
Physical and Chemical Institute for Environment and Human Protection Ministry of Education
and Science & National Academy of Sciences of Ukraine Odesa, Ukraine; W. Szafer Institute of Botany Polish Academy of Sciences,
Kraków, Poland; M.G. Kholodny Institute of Botany National Academy of Sciences of Ukraine
Kyiv, Ukraine
green algae
taxonomy
18S rDNA
Scenedesmus basiliensis
Acutodesmus obliquus.
A comparative analysis of the 18S rDNA partial sequence of an authentic strain of Scenedesmus basiliensis subculture (ACKU 646-06) showed its identity with similar sequences of a number of strains of Acutodesmus obliquus (Turpin) P. Tsarenko. This result confirms the status of S.
Basiliensis as a synonym of A. obliquus.
Materials to the Flora of Bacillariophyta of Lake Kronotskoye (the Kamchatka Peninsula, Russia)
14-22
10.1615/InterJAlgae.v17.i1.20
S. I.
Genkal
Papanin Institute for Biology of Inland Waters RAS, Settle Borok, Nekouz District, Yaroslavl Region 152742, Russia
E. V.
Lepskaya
Kamchatka Institute for Fisheries Research and Oceanography, 18, Naberezhnaya St., Petropavlovsk-Kamchatsky 683000, Russia
Kamchatka
phytoplankton
Bacillariophyta
electron microscopy
This is the first electron microscopy study of Bacillariophyta, a major component of Lake Kronotskoye phytoplankton, which revealed more than 80 taxa of diatoms. Among the 80, two species are new for the flora of Russia (Cavinula thoroddsenii (Foged) Lange-Bert. and Navicula jentzschii Grunow), and 10 forms were identified only to the genus. Genera Cymbella Agardh,, Pseudostaurosira Williams and Round, Gomphonema Ehrenb., Planothidium Round and Bukht. and Navicula Bory are the richest in species. Pennate (Asterionella Hassall) and centric (Aulacoseira Thw., Handmannia M. Perag.) diatoms represented the dominating species of phytoplankton.
Bacillariophyta of Periphyton of Navigation Buoys in the Posiet Bay Area (the Sea of Japan, Russia)
23-36
10.1615/InterJAlgae.v17.i1.30
A. A.
Begun
A.V. Zhirmunsky Institute of Marine Biology of the Far East Branch of the RAS, 17, Palchevsky St., Vladivostok 690041, Russia
L. I.
Ryabushko
A.O. Kovalevsky Institute of Biology of the South Seas of the RAS,
2, Nakhimov Ave., Sevastopol 99011, Russia
A. Yu.
Zvyagintsev
A.V. Zhirmunsky Institute of Marine Biology of the Far East Branch of the RAS, 17, Palchevsky St., Vladivostok 690041, Russia
Bacillariophyta
periphyton
navigation buoys
saprobiont
Posyet Bay
Sea of Japan
Species composition of diatoms overgrowing navigation buoys in water areas of Posiet Bay of the Sea of Japan adjacent to the Far East Marine State Nature Biosphere Reserve is studied. Totally 93 species and intraspecies taxa of diatoms from Bacillariophyceae (61), Coscinodiscophyceae (22) and Fragilariophyceae (10) are registered. 43 taxa are first cited for the reserve. Most of the coves of the Bay are characterized by high species diversity (73 species) of periphyton Bacillariophyta and the dominance of β-mezosaprobionts, indicators of moderate organic pollution. In the cove of Trinity low species diversity (24) and the predominance of α-mezosaprobionts were recorded, largely due to the influence of anthropogenic pollution caused by port of Zarubino and fish factory.
Seasonal Variability of Southern Bug River Upstream Phytoplankton
37-49
10.1615/InterJAlgae.v17.i1.40
O. P.
Bilous
Institute of Hydrobiology
National Academy of Sciences of Ukraine
Kyiv, Ukraine
G. G.
Lilitskaya
M.G. Kholodny Institute of Botany, NAS of Ukraine,
2 Tereschenkivska Str., Kiev 01601, Ukraine
A. A.
Kryvenda
Experimental Phycology and Culture Collection of Algae, University of Goettingen (EPSAG), 18, Nikolausberger Weg, Goettingen 37073, Germany; Taras Shevchenko Kiev National University, Dept. of Botany, 64, Vladymyrskaya St., Kiev 01601, Ukraine
seasonal variability
phytoplankton
abundance
biomass
Southern Bug River
Seasonal variability of phytoplankton species composition and differences of its quantitative characteristic were studied in stationary observation in the town of Khmelnitsky. This study revealed 192 algae species (217 infraspecific taxa), 3 of which are new for Ukrainian flora. High correlation between temperature and species diversity of phytoplankton were found.
Diatom Exopolysaccharides: a Review
50-67
10.1615/InterJAlgae.v17.i1.50
E. I.
Shnyukova
N.G. Kholodny Institute of Botany, NAS of Ukraine, 2, Tereshchenkovskaya St., Kiev 01601, Ukraine
Ye.K.
Zolotariova
M.G. Kholodny Institute of Botany,
National Academy of Sciences of Ukraine,
Kyiv, Ukraine
Bacillariophyta
exopolysaccharides
ecological role
chemical composition
production conditions
Diatom exopolysaccharides (EPS) are bioactive components released into the environment. As an important component of marine phytoplankton, diatoms produce up to a quarter of the annual primary organic matter. The results of EPS studies highlighting the important role of diatom EPS in the global carbon cycle are analyzed. The main types of extracellular carbohydrates, monosaccharide composition of EPS, and dependence of their production on algal growth rate, light conditions and nutrient content in the environment are discussed.
Functional Role of Fucoxantine and Brown Algae Phytohormones
68-81
10.1615/InterJAlgae.v17.i1.60
V. I.
Ryabushko
A.O. Kovalevsky Institute of Marine Biological Researches, 2 Nakhimov Pr., Sevastopol 99001, Crimea
L. I.
Musatenko
N.G. Kholodny Institute of Botany, NAS of Ukraine, 2, Tereshchenkovskaya St., Kiev 01001, Ukraine
L.V.
Voytenko
N.G. Kholodny Institute of Botany, NAS of Ukraine, 2, Tereshchenkovskaya St., Kiev 01001, Ukraine
E. V.
Popova
A.O. Kovalevsky Institute of Biology of Southern Seas, 2, Nakhimov Ave., Sevastopol 99011, Crimea
M. V.
Nechoroshev
A.O. Kovalevsky Institute of Biology of Southern Seas, 2, Nakhimov Ave., Sevastopol 99011, Crimea
fucoxantine
phytohormones
brown algae
Cystoseira
Black Sea
Literature and original data on fucoxantine and phytohormone content in brown algae are summarized. Fucoxantine biological activity including its antioxidant, anti-inflammatory, anticancer, anti-diabetic, and other characteristics are described. Brown algae Cystoseira C. Agardh, occurring in the Black Sea, are shown to be promising raw material in producing biologically active substances including fucoxantine and phytohormones.
The Combined Influence of Light Intensity and Temperature on Organic Carbon to Chlorophyll α Ratio in Three Species of Marine Bacillariophyta
82-93
10.1615/InterJAlgae.v17.i1.70
N.Yu.
Shoman
A.O. Kovalevsky Institute of Biology of the Southern Seas, 2, Nakhimov Prosp., Sevastopol 99011, Crimea
A.
Akimov
A.O. Kovalevsky Institute of Biology of the Southern Seas, 2, Nakhimov Prosp., Sevastopol 99011, Crimea
marine Bacillariophyta
C : chl. α ratio
light
temperature
The combined effect of light and temperature on change in the intracellular ratio of organic carbon to chlorophyll α (C : chl. α) was studied in three species of diatoms: Phaeodactylum tricornutum Bohlin, Nitzschia sp. 3, and Skeletonema costatum Cleve. At the optimum temperature of 20°C value of the C : chl. α ratio varies from 15 to 60−70 all over the studied light range in Ph. Tricornutum and Nitzschia sp. 3, and up to 350 µE·m−2·s−1 in S. costatum. The dependence of this ratio on light is described by a hyperbolic curve. Temperature decrease results in an increase in the C : chl. α ratio in algal cells and increases the initial tangent of the slope of the C : chl. α ratio curve. Inhibiting light combined with low temperature caused a decrease in the functional activity of algae, a decrease in the rate of synthesis of chl. α against the background of its enhanced photo-oxidation and, as a consequence, a sharp increase of the C : chl. α ratio. All studied diatom species are characterized by similar nature of light and temperature dependence of C: chl. α; however, in S. costatum the curve of C : chl. α ratio formed the plateau at lower light intensities, while photo-oxidation of chlorophyll took place with an increase in luminance.
Cytometric Method for Determining the Potential Growth Rate of Phytoplankton on the Mitotic Index
94-106
10.1615/InterJAlgae.v17.i1.80
E.S.
Solomonova
A.O. Kovalevsky Institute of Biology of the Southern Seas, 2, Nakhimov Prosp., Sevastopol 99011, Crimea
V. S.
Mukhanov
A.O. Kovalevsky Institute of Biology of the Southern Seas, 2, Nakhimov Prosp., Sevastopol 99011, Crimea
flow cytometry
microalgae
phytoplankton
mitotic index
growth rate
SYBR Green I
The effect of light intensity and light-dark cycles (12 : 12) on the percentage of cells with diploid DNA in mono-specific cultures of microalgae Phaeodactylum tricornutum Bohlin, Nitzschia sp. 3, Prorocentrum pusillum Dodge, P. cordatum Schiller, and Isochrysis galbana Schiller was studied by flow cytometry. It was shown that the proportion of cells in the G2 phase was significantly higher under high-intensity lighting. In all species a strong correlation (r2 > 0.98) was revealed between the potential growth rate of algae determined by the mitotic index, and their specific production, as measured by the increase in number. Flow cytometry was use for cell cycle analysis and evaluation of potential growth rates of picophytoplankton and nanophytoplankton of the Black Sea. At three stations in Sevastopol and Quarantine bays potential growth rates of pico-and nanophytoplankton in the surface layer was 0.2−1.0 d−1 (year-round sampling in 2010 at 3 stations, a total of 120 samples). Maximum values of this parameter corresponded to the number of annual peaks of the phytoplankton number.