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Bulletin of Nizhnevartovsk State University
Journals / Bulletin of Nizhnevartovsk State University / Issue 1, 2017 / TAXONOMIC AND ECOLOGICAL COMPOSITION OF SURFACE SOIL CYANOPROСARIOTIC-ALGAL MACROSCOPIC EXPANSIONS IN THE CITY OF UFA AND ITS SURROUNDINGS
UDC
582.26

TAXONOMIC AND ECOLOGICAL COMPOSITION OF SURFACE SOIL CYANOPROСARIOTIC-ALGAL MACROSCOPIC EXPANSIONS IN THE CITY OF UFA AND ITS SURROUNDINGS

Published in Bulletin of Nizhnevartovsk State University · Pages 6–12 · Rubric: Articles
Received: 06.03.2017 Accepted: 15.03.2017 Published: 25.03.2017 Language of publication: RUS
Authors
I
I E Dubovik
A
A V Proskuryakova
M
M Y Sharipova
ABSTRACT
The ecological and taxonomic characteristics as well as the structure of cyanoprocaryotic-algal macroscopic expansions on the territory of Ufa (industrial zone) and in Ufa region (village Yumatovo-control zone) have been studied. The study is based on classical algology methods. In macroscopic surface soil expansions on the territory of the industrial zone and in the control zone 75 specific and intraspecific taxons of cyanoprocaryotes and algae have been identified. The representatives of the group Cyanoprokaryota predominate. Heterocyte-free cyanoprocaryotes act as dominants most often. The presence of the representatives of Xanthophyta group in surface soil expansions in Yumatovo is noteworthy. The number of dominants in the expansions vary in the range of 1 to 4 for specific and intraspecific taxons in different combinations. The main part of cyanoprocaryotic-algal cenoses (CAC) in soil macroscopic expansions of the two zones compared are the species of the families Phormidium, Leptolyngbya, Nostoc . The coefficient of similarity of Sørensen between the determinants of consortium of different zones is 21%. A distinctive peculiarity of macroscopic expansions in the control zone is the presence of thread-like yellow-green algae acting as the consortium determinant - Heterothrix exilis . Leptolyngbya boryana and Phormidium autumnale occurred most often as a component part of expansions dominants on the territories studied. Leptolyngbya angustissima and Nostoc pruniforme predominanted in the industrial zone while Chlorosarcina stigmatica and Сrucigenia quadrata in the control zone. Although nearly the same species diversity and the abundance of cyanoprocaryota and algae are observed in the industrial and control zones, the CAC investigated differ in their taxonomic and ecological structure. Thus, in the industrial zone in the spectrum of CAC life forms the leading positions belong to the forms characterized by stability to extreme conditions of the city life. In the taxonomic structure of CAC dominants of the control zone there are 7 representatives of the group Cyanoprokaryota, 5 - of Chlorophyta, 1 - of Xanthophyta. In the industrial zone there are 13 representatives of the Cyanoprokaryota group and 3 - of Chlorophyta.
KEYWORDS
vodorosli, cianoprokarioty, makroskopicheskie razrastaniya
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