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Доповіді НАН України. – 2008. – N 1. – С. 169–176.
Антарктические микроорганизмы, устойчивые к высоким концентрациям Hg2+, Cu2+, Cd2+ и СrО42–
А.Б. Таширев, В.А. Романовская, И.Б. Сиома, В.П. Усенко, А.А. Таширева, Н.А. Матвеева, П.В. Рокитко, Ю.П. Копытов, Е.С. Серединин, Д.А. Мизин, В.С. Подгорский
Abstract
The microbiological analysis of various biotopes which have been selected on
the islands Galindez, Skua, Barchans, Irizar, Uruguay, Jalour, Petermann,
Berthelot, Cruls, and King-Georg located in the western Antarctic Region and
at the western coast of the Antarctic peninsula, cape Rasmussen and cape
Tuxen, was carried out. In the majority of ground biotopes (the soil,
mosses, lichens, lake silt, water, humus) of the investigated Antarctic
Region, the microorganisms resistant to heavy metals (100...500 ppm of
ions Сr, Cu, Cd, or Hg) are revealed. Thus, for the first time, the wide
occurrence of microorganisms resistant to a bactericidal concentration of
heavy metals in the Antarctic Region is shown. Uniqueness of a phenomenon
consists in a combination: (1) ability of microorganisms to grow at
superhigh concentration of heavy metals, (2) it is non-comparable by low
concentration of heavy metals in the Antarctic samples (from 0.02 up to 40
ppm), (3) presence of metal-resistant microorganisms in all ground biotopes
of the Antarctic Region, (4) high number of metal-resistant microorganisms
in these biotopes (104...105 cells/g of a substrate).
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