Begell House Inc.
International Journal on Algae
IJA
1521-9429
18
1
2016
Evolution of the Circadian Clock System in Cyanobacteria: A Genomic Perspective
5-20
10.1615/InterJAlgae.v18.i1.10
V.
Dvornyk
College of Science and General Studies, Alfaisal University, Al Maather, Riyadh, Kingdom of Saudi Arabia
cyanobacteria
circadian system
evolution
genomics
Cyanobacteria are the first prokaryotes shown to have an endogenous circadian clock; an ability to sustain life processes with an approximate daily periodicity. During its long and complex evolutionary history, the circadian system of cyanobacteria has undergone several major changes, which resulted in its structural diversification. Three main types of the system that possess different sets of elements have been identified so far. There is evidence that these differences may be associated with some functional modifications. Macroevolution of the circadian system has been governed by many factors including multiple duplications, gene recruitment and de novo gene origin, domain accretion and fusion, and selection. Rapid accumulation of genomic data provides new possibilities for comprehensive comparative analyses and more accurate reconstruction of an evolutionary scenario for this finely tuned regulatory mechanism of cyanobacteria.
Dinoflagellates in the Sevastopol Coastal Zone (Black Sea, Crimea)
21-32
10.1615/InterJAlgae.v18.i1.20
Yu. V.
Bryantseva
M.G. Kholodny Institute of Botany, National Academy of Sciences of Ukraine,
2 Tereschenkivska Str., Kiev 01601, Ukraine
A. F.
Krakhmalnyi
Institute for Evolutionary Ecology, NAS of Ukraine,
37 Acad. Lebedeva Str., Kiev 03143, Ukraine
V. N.
Velikova
SurDEP, Wierda Glen Estate, Centurion, Pretoria, South Africa
O. V.
Sergeeva
A.O. Kovalevsky Institute of Biology of the Southern Seas NAS of Ukraine,
2 Nakhimova Ave., Sevastopol 20000, Ukraine
Black Sea
dinoflagellates
Sevastopol coastal zone
species composition
The first microalgae inventory of Sevastopol Bay and neighboring Black Sea coastal waters dates back to 1886 and includes 16 species. In 1948, Morozova-Vodyanitskaya
published the first retrospective analysis of Black Sea phytoplankton, which included 90 species of dinoflagellates of the Sevastopol area. In the following decades, IBSS scientists conducted such studies and during the last 25 years the Sevastopol Bay and adjacent coastal waters monitoring occurred regularly. Recently, the most comprehensive list of dinoflagellates of Sevastopol Bay
included 87 species and was based on the research of Senicheva in 1983-2006. For the same area the observations of Manzhos in 2001-2002 and 2006-2007 resulted in a list of dinoflagellates with 60 and 54 taxons correspondingly, (including those which were identified at the species level). In 2008-2014, during the monthly ecological monitoring of Sevastopol coastal waters, performed by
the Biophysical Ecology Department of the IBSS NASU, 86 dinoflagellate taxa were identified (74 species and an additional 12 taxa to the genus level and above). They belong to 28 genera, 18 families, 7 orders, and 2 classes. In terms of species number, dominating genera were:
Protoperidinium Berg. (14), Dinophysis Ehrenb., Gymnodinium F. Stein, Prorocentrum Ehrenb. (each represented by 7 species), and Gonyaulax Diesing - 6 species. Out of the total number (74), 20 species are bioluminescent and most of them belong to genus Protoperidinium. In this paper we present a comparative analysis of historical and modern data and a first comprehensive check list of dinoflagellate species of the Sevastopol coastal area based on a compilation of personal species identifications and results of all previous studies in these waters. Our list consists of 66 synonyms, 156 valid species and infraspecific taxa related to 49 genera, 29 families, 11 orders, and 3 classes. Over the entire period under review (1886-2014), 26 bioluminescent species have been reported. After more than a century of phytoplankton research in the Sevastopol coastal area (Black Sea), significant differences were found both in number of species and in species composition enlisted in different sources, which required clarification and an update of species names in line with modern taxonomy so as to correctly assess the phytoplankton diversity in the area of interest.
The First Finding of Chara rudis (A. Braun) Leonh. (Charales, Charophyta) in Ukraine
33-38
10.1615/InterJAlgae.v18.i1.30
Ye. V.
Borisova
N.G. Kholodny Institute of Botany, NAS of Ukraine,
2 Tereshchenkovskaya Str., Kiev 01004, Ukraine
D. N.
Iakushenko
University of Zielona Góra, Department of Biological Sciences, 1, Z. Szafrana St., Zielona Góra 65-516, Poland
Chara rudis
Charales
Ukrainian Carpathians
Ukraine
A new locality of Chara rudis has been found in the Ivano-Frankivsk Region (Ukrainian Carpathians) in summer 2008. It forms charophyte single-species meadows in a freshwater pond at a depth of 0.3−0.5 up to 1 m on silt but on solid substrate with a surface cover of 75−95%. It is the first finding of this alga in Ukraine. The specimens are described; distribution and ecology of C. rudis as well as its taxonomical status are discussed.
A Study of Flora of Bacillariophyta in Water Bodies and Water Courses of the Naduiyakha River Basin (Yamal Peninsula, Russia)
39-56
10.1615/InterJAlgae.v18.i1.40
S. I.
Genkal
Papanin Institute for Biology of Inland Waters RAS, Settle Borok, Nekouz District, Yaroslavl Region 152742, Russia
M. I.
Yarushina
Institute of Plant and Animal Ecology, Ural Branch, RAS,
202, 8 Marta St., Yekaterinburg 620144, Russia
Yamal Peninsula
Naduiyakha River basin
phytoplankton
diatom algae
electron microscopy
At present, aquatic ecosystems of the Yamal Peninsula are suffering from increasing anthropogenic loads. For this reason, the study of diatom algae dominating in phytoplankton is necessary in the ecological monitoring of ecosystems. This paper presents the first data on the species composition of Bacillariophyta in low mineralized lakes, channels, brooks, and streams of the Naduiyakha River basin in the Yamal Peninsula, which has been poorly studied with respect to algology. The scanning electron microscopy study of phytoplankton from these waterbodies and watercourses reveals 249 specific and infraspecific taxa of diatom algae from 54 genera. A total of 19 species and varieties new for the flora of Russia are recorded; 49 forms from 25 genera are identified only to the genus. The maximum species diversity is recorded in Lake Nagarka-Nyavasito (82) and the Yunetayakha River (102). The following species are the most widespread in the waterbodies under study: Aulacoseira subarctica (O. Müll.) E.Y. Haw., Asterionella formosa Hassall, Cymbopleura peranglica Krammer, Nitzschia alpine Hust., and Tabellaria flocculosa (Roth) Kütz.
Benthic Algae of the Freshwater Ecosystems of the Tiligulskiy Regional Landscape Park (Ukraine)
57-66
10.1615/InterJAlgae.v18.i1.50
A. N.
Mironyuk
Odessa National I.I. Mechnikov University,
2, Dvoryanskaya St., Odessa 65058, Ukraine
F. P.
Tkachenko
Department of Botany, I.I. Mechnikov Odesa National University,
2 Dvorianska Str., Odesa 65026, Ukraine
K. B.
Sardarian
I.I. Mechnikov Odessa National University, 2 Dvorianskaya Str., Odessa 65026, Ukraine
Tiligulskiy Regional Landscape Park
algae
species composition
bioindication
freshwater ecosystems
Tiligulskiy Regional Landscape Park (TRLP) is a territory with well-preserved natural systems characterized by high diversity of flora and fauna. They are protected at both the
national and international level. Its freshwater and floral component plays the major role in the functioning of the wetland park. The species diversity of benthic algae freshwater TRLP has been investigated. Investigations were carried out in 2013-2014 in fresh water areas included in the TRLP: lower reaches of the Tiligul River (near the village of Berezovka, sat Viktorovka and Kosovka), Big Tsaregol (near Tashino), Small Tsaregol (near Anatolyevka) Balaychuk (near Cairy), the flooded lakes (near villages Marianovka and Kosovka). There were 87 samples of phytobenthos collected in total on different substrates. Taxonomic and ecological geographical analyses of the
identified species were made. We identified 180 species and infraspecific taxa of algae, which refer to 8 departments, 12 classes, 26 orders, 43 families and 77 genera. The greatest diversity of algal speices were found in larger bodies of water park (Tiligul River), and the smallest - were in small and quickly ephemeral waters (rivers Small Tsaregol and Balaychuk). These reservoirs are
characterized by a diatomaceous-blue-green-green complex of species of phytobenthos. Ecological characteristics of the surveyed area are performed. Most of the identified species of algae are inhabitants of moderately polluted waters (mezosaprobs - 107, oligosaprobs - 12, izosaprob - 1),
but the presence of 14 species of α-mezosaprobs indicates tense ecological situation in some waters. The whole structure of algal flora of the investigated waters characterizes them as the water mesosaprobic, standing-flowing, medium strongly mineralized, moderately alkaline.
Representatives of Stigonematales in the Flora of Ukraine: Diversity, Ecology, and Taxonomic Position
67-80
10.1615/InterJAlgae.v18.i1.60
O. M.
Vinogradova
M.G. Kholodny Institute of Botany, National Academy of Sciences of Ukraine,
Tereschenkivska Str. 2, Kiev 01601, Ukraine
Stigonematales
Capsosira brebissonii
Pulvinularia suecica
Fischerella major
Stigonema intermedium
diversity
ecology
taxonomy
rare species
Ukraine
The information about the diversity of representatives of the order Stigonematales Geitler in flora of the Ukraine is analyzed in light of modern ideas on taxonomy, ecology, phylogeny, and the position of true branching forms in the system of heterocytous cyanoprocaryotes. Critical revision of historical and contemporary data on their findidngs in Ukraine revealed 14 species of true branching cyanobacteria belonging to 7 genera and 4 families of the monophyletic group Nostochophycidae. Hapalosiphonaceae is the most diverse (3 genera) followed by Stigonemataceae (2), Capsosiraceae and Symphyonemataceae (one genus and one species in each). Genus Stigonema C. Agardh ex Bornet & Flahault in Ukraine is represented by eight out of ten
species found in Europe; other genera have one species each. Most of the revealed species are subaerophytes, usually occurring in marsh ecosystems, three are freshwater species, and two species (Brachytrichia quoyi Bornet & Flahault and Mastigocoleus testarum Lagerh.) dwell in the seas on limestones; the latter refers to a group of boring euendoliths. In Ukraine, very rare species were found: Capsosira brebissonii Kütz. ex Bornet & Flahault and Pulvinularia suecica Borzi are known in the world by single finds; Fischerella major Gomont was recorded in Europe only three times. Stigonema intermedium N.V. Kondrat. until now is known only from several localities in Ukraine; it has been described as the inhabitant of drying up sites of hypnum-sedge bogs in Western Polesie and later found again on dripping rocks in the Crimean Mountains. Ukrainian nature is rich in landscapes with favorable habitats for true branching Cyanoprokaryota, which allows consideration, given the list of species is a preliminary one.
Bacillariophyta of Small Water Bodies of Kiev (Ukraine) 1. Naviculales
81-104
10.1615/InterJAlgae.v18.i1.70
G. G.
Lilitskaya
M.G. Kholodny Institute of Botany, NAS of Ukraine,
2 Tereschenkivska Str., Kiev 01601, Ukraine
diatoms
Naviculales
flora
small water bodies
Kiev
This paper presents data on species diversity of Naviculales (Bacillariophyta) revealed in small water bodies of Kiev, studied by SEM and light microscopy. Algological materials were collected in water bodies of various types (small rivers, streams, springs, canals, ditches, ponds, lakes, flood water bodies, and puddles) in different seasons. Literature data were analyzed with reference to current nomenclature changes. The changes in species composition of Naviculales for almost 100 years of study are discussed. In small reservoirs of Kiev 78 species of 24 genera and 12 families of Naviculales were found. Genus Navicula leads in species (18 species, 23%) followed by Stauroneis (9 species, 11.5%) and Pinnularia (6 species, 7.7%). Thirty-seven species are new for the city of Kiev, including four new for Ukraine: Navicula antonii Lange-Bert., N. caterva Hohn et Hellerman, N. upsalensis (Grunow) Perag., and Stauroneis subgracilis Ehrenb.. According to both original findings and literature data, in small water bodies of Kiev, 110 species of Naviculales from 25 genera and 12 families were found. At present, species structure of Naviculales has undergone some changes: the share of genus Pinnularia in the taxonomic spectrum decreases compared to literature data due to the disappearance of peatbods and wetlands in the Kiev area.