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Effect of microscopic fungi on the
137Cs accumulation
by some plants growing on radionuclides contaminated soil |
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Nelli Zhdanova1*, Antonina Vasilevskaya 1, Tamara Lashko2, Martin H. Gerzabek 3 |
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1Institute of
Microbiology and Virology of National Academy of Sciences of Ukraine,
Zabolotnogo 154, 03143 Kiev, Ukraine, *e-mail: zhdanova_imv.ua@mail.ru |
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Abstract:
The influence of soil micromycetes
(melanin-containing, dark-pigmented Cladosporium
cladosporioides and light-pigmented Paecilomyces
lilacinus) on 137Cs accumulation by aboveground phytomass of
some higher plants (sugar beet, cabbage and clover) was studied in field
experiments in radionuclides contaminated soil of the Chernobyl zone with
total radioactivity 37–50 kBq/kg. Abundance of these fungi was determined 1,
3 and 5 months after their introduction into the soil. P. lilacinus colonies were isolated in the beginning of the
experiment in contrast to C.
cladosporioides colonies that were isolated at the end of plants
vegetation. The
coefficients of 137Cs accumulation by aboveground phytomass were
higher after the introduction of light-pigmented than of dark-pigmented
fungus. These coefficients were higher after the simultaneous introduction of
the two fungi than after each fungus introduced separately. |
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Key words: micromycetes,
radioactive soil, coefficients of 137Cs accumulation |