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ISSN 2410-776X (Online),
ISSN 2410-7751 (Print)

 3 2015

Biotechnologia Acta" V. 8, No 3, 2015
https://doi.org/10.15407/biotech8.03.123
Р. 123-128, Bibliography 13, English
Universal Decimal Classification: 579.266

REGULARITIES OF QUANTITATIVE DISTRIBUTION FOR FE(III)-REDUCING BACTERIA IN NATURAL ECOSYSTEMS

Govorukha V. M.1, Havrylyuk O. A.2, Tashyrev O. B.1

1Zabolotny Institute of Microbiology and Virology of the National Academy of Sciences of Ukraine, Kyiv
2National Aviation University, Kyiv, Ukraine

The aim of the work was quantitative determination of Fe(III)-reducing bacteria in natural ecosystems of the Antarctic, the Arctic, the Dead and the Black Sea, middle latitude (Ukraine, Abkhazia) and the equatorial zone (Ecuador).

It was used the method of quantitative determination of microorganisms by McCready and the colorimetric method for determination of Fe(II) compounds .

Results. The systemic study of the number of Fe(III)-reducing bacteria of both hemispheres in the ecosystems of six geographic regions was carried out for the first time. High number of Fe(III)-reducing bacteria in natural ecosystems was experimentally shown. The number of Fe(III)-reducing bacteria ranged from 1.1•102 to 2.8•107 cells/g of absolutely dry sample.

Conclusions. The presented data  showed that Fe(III)-reducing bacteria are an integral part of natural ecosystems and can significantly affect the biogeochemical cycles of iron and carbon compounds transformation.

Key words: quantity of Fe(III)-reducing bacteria, natural ecosystems, biogeochemical cycles of iron.

© Palladin Institute of Biochemistry of the National Academy of Sciences of Ukraine, 2015