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Accumulation of radionuclides by lichen symbionts

Journal Article:

Abstract

The aim of investigation is the quantitative estimation of ability and role of separate symbionts in the accumulation of radionuclides. As investigation volumes, durably cultivated green lichen alga Trebouxia erici and lichen fungi extracted from Cladonia rangiferina, Parmelia caperata and Acarospora fuscata are used. The accumulation of radioactive isotopes with fungi and seaweeds is estimated according to accumulation coefficients (AC) which are the ratio of radiation concentration in plants and agarized medium. Radionuclide content (/sup 90/Sr and /sup 137/Cs) is determined radiometrically. A special series of experiments is done to investigate radionuclide accumulation dependences with lichen seaweed and fungi on light conditions. It is shown that both symbionts of lichen-seaweed and fungus take part in the accumulation of radionuclide from outer medium (atmospheric fall-out and soil). However fungus component constituting the base of structural organization of thallus provides the greater part of radionuclides accumulated by the plant. Along with this the violation of viability of seaweed symbionts particularly in the case of light deficiency brings about the reduction of /sup 137/Cs sorption by seaweeds and tells on the total content of radiocesium in plant thallus.
Authors:
Nifontova, M G; Kulikov, N V [1] 
  1. AN SSSR, Sverdlovsk. Inst. Ehkologii Rastenij i Zhivotnykh
Publication Date:
Jan 01, 1983
Product Type:
Journal Article
Reference Number:
AIX-15-030871; EDB-84-095748
Resource Relation:
Journal Name: Ekologiya; (USSR); Journal Volume: 1; Other Information: For English translation see the journal Soviet Journal of Ecology (English Translation)
Subject:
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; CESIUM 137; BUILDUP; FUNGI; RADIONUCLIDE KINETICS; LICHENS; SEAWEEDS; STRONTIUM 90; ALGAE; RADIONUCLIDE MIGRATION; RESPONSE MODIFYING FACTORS; VISIBLE RADIATION; ALKALI METAL ISOTOPES; ALKALINE EARTH ISOTOPES; AQUATIC ORGANISMS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CESIUM ISOTOPES; ELECTROMAGNETIC RADIATION; ENVIRONMENTAL TRANSPORT; EVEN-EVEN NUCLEI; INTERMEDIATE MASS NUCLEI; ISOTOPES; MASS TRANSFER; NUCLEI; ODD-EVEN NUCLEI; PLANTS; RADIATIONS; RADIOISOTOPES; STRONTIUM ISOTOPES; YEARS LIVING RADIOISOTOPES; 560173* - Radiation Effects- Nuclide Kinetics & Toxicology- Plants- (-1987); 560174 - Radiation Effects- Nuclide Kinetics & Toxicology- Microorganisms- (-1987)
OSTI ID:
7003751
Country of Origin:
USSR
Language:
Russian
Other Identifying Numbers:
Journal ID: CODEN: EKIAA
Submitting Site:
HEDB
Size:
Pages: 78-80
Announcement Date:

Journal Article:

Citation Formats

Nifontova, M G, and Kulikov, N V. Accumulation of radionuclides by lichen symbionts. USSR: N. p., 1983. Web.
Nifontova, M G, & Kulikov, N V. Accumulation of radionuclides by lichen symbionts. USSR.
Nifontova, M G, and Kulikov, N V. 1983. "Accumulation of radionuclides by lichen symbionts." USSR.
@misc{etde_7003751,
title = {Accumulation of radionuclides by lichen symbionts}
author = {Nifontova, M G, and Kulikov, N V}
abstractNote = {The aim of investigation is the quantitative estimation of ability and role of separate symbionts in the accumulation of radionuclides. As investigation volumes, durably cultivated green lichen alga Trebouxia erici and lichen fungi extracted from Cladonia rangiferina, Parmelia caperata and Acarospora fuscata are used. The accumulation of radioactive isotopes with fungi and seaweeds is estimated according to accumulation coefficients (AC) which are the ratio of radiation concentration in plants and agarized medium. Radionuclide content (/sup 90/Sr and /sup 137/Cs) is determined radiometrically. A special series of experiments is done to investigate radionuclide accumulation dependences with lichen seaweed and fungi on light conditions. It is shown that both symbionts of lichen-seaweed and fungus take part in the accumulation of radionuclide from outer medium (atmospheric fall-out and soil). However fungus component constituting the base of structural organization of thallus provides the greater part of radionuclides accumulated by the plant. Along with this the violation of viability of seaweed symbionts particularly in the case of light deficiency brings about the reduction of /sup 137/Cs sorption by seaweeds and tells on the total content of radiocesium in plant thallus.}
journal = {Ekologiya; (USSR)}
volume = {1}
journal type = {AC}
place = {USSR}
year = {1983}
month = {Jan}
}