Begell House Inc.
International Journal on Algae
IJA
1521-9429
14
1
2012
Algal Flora of Water Bodies of the Timpton River Basin (South Yakutia, Russia)
5-15
10.1615/InterJAlgae.v14.i1.10
A.P.
Ivanova
Institute for Biological Problems of Cryolithozone, SB RAS,41, Lenina Prosp., 677980 Yakutsk, Sakha Republic (Yakutia), Russia
V. A.
Gabyshev
Institute for Biological Problems of Cryolithozone SB RAS, 41 Lenin Ave., Yakutsk 677980, Russia
L. I.
Kopyrina
Institute for Biological Problems of Cryolithozone, SB RAS,41, Lenina Prosp., 677000 Yakutsk, Sakha Republic (Yakutia), Russia
algae
phytoplankton
periphyton
number
biomass
Taxonomic and ecological-floristic analysis of the phytoplankton and periphyton of the Timpton River and a few floodplain lakes are given. Quantitative parameters of number and biomass of phytoplankton of studied water bodies are presented.
Biological Diversity of Phytoplankton of the Lakes of the Republic Bashkortostan, Russia
16-30
10.1615/InterJAlgae.v14.i1.20
F. B.
Shkundina
Bashkiria State University Ufa, Russian Federation
G.A.
Gulamanova
Bashkirian University, Department of Botany,32, Zaki Validi St., Ufa 450074, Bashkortostan, Russia
autotrophic plankton
Republic of Bashkortostan
lakes
α-
β-
and γ-diversity
The results of the study of autotrophic plankton in nine lakes of the Republic of Bashkortostan during the period from 1978 till 2009 were summarized. In total, 587 species and infraspecific taxa of Cyanoprokaryota and algae were revealed. Their α-, β-, and γ-diversity were discussed.
The First Case of a Bloom of Nodularia spumigena Mert. ex Born. et Flah. (Cyanophyta) in the Black Sea
31-43
10.1615/InterJAlgae.v14.i1.30
B.G.
Alexandrov
Odessa Branch of A.O. Kovalevsky Institute of Biology of the Southern Seas, National Academy of Sciences of Ukraine, 37, Pushkinskaya St., 65125 Odessa, Ukraine
L. M.
Terenko
Institute of Marine Biology, NAS Ukraine, 37, Pushkinskaya St., Odessa 65011, Ukraine
D. A.
Nesterova
Institute of Marine Biology, NAS Ukraine, 37, Pushkinskaya St., Odessa 65011, Ukraine
Nodularia spumigena
cyanobacteria
phytoplankton
bloom
eutrophication
Black Sea
The first case of a bloom for blue-green alga Nodularia spumigena in the Black Sea has been studied. The maximum abundance of the species in the bloom patch was 585.6·106 of filaments·per L−1, biomass − 6.2 kg·m−3. Mass development of the species was observed in mid July 2010 at 24.9-27.0 sea water temperature and 12.9-14.5 salinity. The dynamics of the abundance of N. spumigena and accompanying phytoplankton species has been analyzed. Possible reasons for the bloom of microalgae have been discussed.
Effect of Hormesis in Dunaliella viridis Teodor. (Chlorophyta) Under the Influence of Copper Sulfate
44-61
10.1615/InterJAlgae.v14.i1.40
M. K.
Kovaleva
Research Institute of Biology, V.N. Karazin Kharkov National University, 4 Svobody Sq., Kharkov 61022, Ukraine
N. G.
Menzyanova
Research Institute of Biology, V.N. Karazin Kharkov National University, 4 Svobody Sq., Kharkov 61022, Ukraine
Anshu
Jain
Department of Pharmacology and Toxicology, Defense Research and Development Establishment, Jhansi Road, Gwalior 474002, India
Abhishek
Yadav
Department of Pharmacology and Toxicology, Defense Research and Development Establishment, Jhansi Road, Gwalior 474002, India
Swaran
Flora
National Institute of Pharmaceutical Education and Research - Raebareli Ministry of Chemical & Fertilizers, Department of Pharmaceuticals, Govt of India NIPER Raebareli Transit Campus,
Bijnor-Sisendi Road, Near CRPF Camp P.O. Sarojini Nagar LUCKNOW-226 002, U.P. INDIA
A.I.
Bozhkov
Research Institute of Biology, V.N. Karazin Kharkov National University, 4 Svobody Sq., Kharkov 61022, Ukraine
toxicity
hormesis
copper ions
Dunaliella viridis
Resistance of the Dunaliella viridis culture, preliminary adapted to the growth on the medium containing 20 mg/L of copper sulfate, was investigated to an increase in the concentration of copper ions up to 75 mg/L. Such a culture is shown to be stable to high concentrations of copper ions, in other words, it is able to display the effect of hormesis. The D. viridis cells resistant to copper ions (75 mg/L) may accumulate by 2000 times more copper ions as compared to the control group. In this case the content of carbonylated proteins (the products of free-radical processes) is twice as high in them. In the process of cultivation the Cu2+ content in cells decreased by several times. In cells displaying the hormesis effect the activity of superoxide dismutase reliably increased, while the content of free proline was twice as low. An assumption is advanced that the hormesis effect can be displayed only in the case when all cell defense systems produce joint effects. Such a behavior is characterized not only by simple summation of all elements of defense but also by a display of emergent properties of the system.
The Effect of Ammonium on Viability, Growth and Pigment Composition of Fischerella sp. (Cyanophyta)
62-70
10.1615/InterJAlgae.v14.i1.50
Shadman
Shokravi
Department of Biology, Gorgan Branch, Islamic Azad University, Gorgan, Iran
N.
Soltani
Department of Petroleum Microbiology, Research Institute of Applied Science,
ACECR, Tehran, Iran; Research Institute of Environment and Sustainable Development, DOE, Tehran, Iran
ammonium
Cyanoprokaryota
Fischerella sp.
nitrogenase
photosynthesis
photosynthetic pigments
We studied the viability, growth and pigmentation of Fischerella sp., in the presence of ammonium. Maximum growth rate was seen in the absence of ammonium. Biomass in nitrogen (N) free medium and ammonium 1 and 2 mM were in decreasing order of preference. NH4+ 2 mM was drastically toxic for this strain. The highest chlorophyll concentration was detected in N-free medium. Photosynthesis varied in same way as chlorophyll. Phycobiliproteins, phycocyanin and phycoerythrin had the highest rate in N-free medium. The highest light-saturated photosynthetic rate and also steepest initial slope clearly belonged to N-free medium. With respect to nitrogenase activity, combined nitrogen source inhibited it, regardless the concentrations used. Our results indicated that higher concentration of ammonium has an inhibitory effect on growth and metabolism of Fischerella sp. and also this strain is a potent diazotrophic species.
Effect of Electric Current on Resistance and Heterocyst Differentiation in Anabaena variabilis Kütz. (Cyanoprokaryota)
71-78
10.1615/InterJAlgae.v14.i1.60
Gaurav
Pant
GITAM University
R.G.
Prasuna
Department of Microbiology, GITAM Institute of Sciences, GITAM University, Visakhapatnam, Andhra Pradesh-530 045, India
Anabaena variabilis
heterocyst
electric chamber
applied electric field
Filamentous cyanoprokaryotic Anabaena variabilis was subjected to an externally applied electric field of 10 amperes for 2 hours, in an electric chamber designed for the experiment. The effect of electric current was seen on the growth, survival and heterocyst differentiation of the investigated strain. Interesting growth pattern with remarkable increase in the percentage of heterocyst were observed when treated cells were compared with control. Heterocyst frequency was seen to increase from a mere 5% to 10.22% together with incidence of multiple heterocysts. This could possibly be due to abnormal nitrogen fixation by the treated sample cells.
Investigation Into the Suitability of Inland Ground Saline Water for the Growth of Marine Microalgae for Industrial Purposes
79-92
10.1615/InterJAlgae.v14.i1.70
T.
Chipchase
School of Marine and Tropical Biology, James Cook University, Townsville QLD 4811, Australia
S.
Awal
Aquaculture, Dept ofAgriculture and Animal Sci., Northern Melbourne Inst. ofTAFE Corner of Dalton Road and Cooper Street, Epping Victoria 3076, Australia
Isochrysis galbana
agricultural production
marine microalgae
Tetraselmis suecica Australia
An increasing shortage of crude oil has necessitated into alternative energy sources. In Australia, inappropriate agricultural practices have left large areas of agricultural land subject to secondary salinisation from rising water tables. Opportunities have arisen from groundwater interception schemes for the aquacultural production of marine microalgae far inland from coastal areas where a shortage of suitable sites and strict environmental regulations makes the production of large volumes of microalgae unrealistic. Four small-scale laboratory experiments were undertaken to determine the potential growth of the two species of marine microalgae, Isochrysis galbana Parke and Tetraselmis suecica Stein, in inland saline ground water sourced from a ground water monitoring bore in rural Victoria. The results showed that at the termination of the experiments the differences between experimental units and control treatments of I. galbana and T. suecica with and without algal growth nutrient were not significantly different.
Calcareous Nannofossils from the Paleogene Deposits of the Northern Forecaucasus (Russia) and South-Eastern Part of Great Donbas (Ukraine)
93-106
10.1615/InterJAlgae.v14.i1.80
A. S.
Andreeva-Grigorovich
Institute of Geological Sciences, National Academy of Sciences of Ukraine, 55-b, Gonchara St., Kiev 01601, Ukraine
D.D.O.
Waga
Institute of Geological, National Academy of Science of Ukraine, 55 b, O. Gonchar St., 01001 Kiev, Ukraine
Nannofossils
Paleocene-Eocene
Northern Forecaucasus
south-eastern part Donbas
taxonomic description
Russia
This article includes the results of the electron microscope study and the first taxonomic description of 13 calcareous nannofossil species from the Paleocene-Eocene sediments from the borehole material of Northern Precaucasus (Russia) and the south-eastern part of the Great Donbas (Ukraine). The described species belong to the genus of Helicosphaera, Chiasmolithus and Nannotetrina.