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Title: Subcellular distribution and translocation of radionuclides in plants

Abstract

The subcellular distribution of radionuclides in Glycine max Merr. (soybean) and Cucumis sativus L. (cucumber) and translocation of plant absorbed radionuclides with growth in soybean were studied. More than 60% of cellular incorporated Rb{sup {minus}83}, Sr{sup {minus}85}, Mn{sup {minus}54}, Nb{sup {minus}95}, and Se{sup {minus}75} remained in the supernatant fraction; 55% and 20% of Cr{sup {minus}51} was bound to soybean and cucumber cell wall fractions, respectively; 70% or more of Be{sup {minus}7}, Y{sup {minus}88}, and Fe{sup {minus}59} was fixed in the chloroplast fraction; and approx. 10% of Sc{sup {minus}46}, Fe{sup {minus}59}, V{sup {minus}48}, and As were fixed in the mitochondrial fraction. Translocation of nuclides within the soybean plant at different stages of growth has been determined. Vanadium, Y{sup {minus}88}, Be{sup {minus}7}, Se{sup {minus}75}, Nb{sup {minus}95}, Sc{sup {minus}46}, Cr{sup {minus}51}, and Zr{sup {minus}88} were predominantly accumulated in the root. Although the total percentage of plant uptake of Sc{sup {minus}46}, Zr{sup {minus}88}, Nb{sup {minus}95}, Sc{sup {minus}46}, and Cr{sup {minus}51} was high, because of low mobility and translocation to shoot, their accumulation in the fruit fraction was negligible. The translocation of mobile nuclides in plants was demonstrated clearly by Rb{sup {minus}83}, Zn{sup {minus}65}, and Fe{sup {minus}59}. Data on the nuclide fraction mobilized from vegetativemore » parts into edible parts was used to assess the percentage of accumulated radionuclides in plants that may reach humans through beans.« less

Authors:
; ; ; ; ; ; ;
Publication Date:
Research Org.:
Inst. of Physical and Chemical Research, Wako, Saitama (JP)
OSTI Identifier:
20006631
Resource Type:
Journal Article
Journal Name:
Environmental Toxicology and Chemistry
Additional Journal Information:
Journal Volume: 18; Journal Issue: 9; Other Information: PBD: Sep 1999; Journal ID: ISSN 0730-7268
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 56 BIOLOGY AND MEDICINE, APPLIED STUDIES; SOILS; CONTAMINATION; ROOT ABSORPTION; RUBIDIUM 83; STRONTIUM 85; BERYLLIUM 7; SCANDIUM 46; YTTRIUM 88; CHROMIUM 51; MANGANESE 54; IRON 59; COBALT 56; ZINC 65; VANADIUM 48; ZIRCONIUM 88; NIOBIUM 95; ARSENIC 74; SELENIUM 75; SUBCELLULAR DISTRIBUTION; TRANSLOCATION; GLYCINE HISPIDA; CUCUMBERS

Citation Formats

Gouthu, S., Weginwar, R., Arie, Tsutomu, Ambe, Shizuko, Ozaki, Takuo, Enomoto, Shuichi, Ambe, Fumitoshi, and Yamaguchi, Isamu. Subcellular distribution and translocation of radionuclides in plants. United States: N. p., 1999. Web. doi:10.1897/1551-5028(1999)018<2023:SDATOR>2.3.CO;2.
Gouthu, S., Weginwar, R., Arie, Tsutomu, Ambe, Shizuko, Ozaki, Takuo, Enomoto, Shuichi, Ambe, Fumitoshi, & Yamaguchi, Isamu. Subcellular distribution and translocation of radionuclides in plants. United States. doi:10.1897/1551-5028(1999)018<2023:SDATOR>2.3.CO;2.
Gouthu, S., Weginwar, R., Arie, Tsutomu, Ambe, Shizuko, Ozaki, Takuo, Enomoto, Shuichi, Ambe, Fumitoshi, and Yamaguchi, Isamu. Wed . "Subcellular distribution and translocation of radionuclides in plants". United States. doi:10.1897/1551-5028(1999)018<2023:SDATOR>2.3.CO;2.
@article{osti_20006631,
title = {Subcellular distribution and translocation of radionuclides in plants},
author = {Gouthu, S. and Weginwar, R. and Arie, Tsutomu and Ambe, Shizuko and Ozaki, Takuo and Enomoto, Shuichi and Ambe, Fumitoshi and Yamaguchi, Isamu},
abstractNote = {The subcellular distribution of radionuclides in Glycine max Merr. (soybean) and Cucumis sativus L. (cucumber) and translocation of plant absorbed radionuclides with growth in soybean were studied. More than 60% of cellular incorporated Rb{sup {minus}83}, Sr{sup {minus}85}, Mn{sup {minus}54}, Nb{sup {minus}95}, and Se{sup {minus}75} remained in the supernatant fraction; 55% and 20% of Cr{sup {minus}51} was bound to soybean and cucumber cell wall fractions, respectively; 70% or more of Be{sup {minus}7}, Y{sup {minus}88}, and Fe{sup {minus}59} was fixed in the chloroplast fraction; and approx. 10% of Sc{sup {minus}46}, Fe{sup {minus}59}, V{sup {minus}48}, and As were fixed in the mitochondrial fraction. Translocation of nuclides within the soybean plant at different stages of growth has been determined. Vanadium, Y{sup {minus}88}, Be{sup {minus}7}, Se{sup {minus}75}, Nb{sup {minus}95}, Sc{sup {minus}46}, Cr{sup {minus}51}, and Zr{sup {minus}88} were predominantly accumulated in the root. Although the total percentage of plant uptake of Sc{sup {minus}46}, Zr{sup {minus}88}, Nb{sup {minus}95}, Sc{sup {minus}46}, and Cr{sup {minus}51} was high, because of low mobility and translocation to shoot, their accumulation in the fruit fraction was negligible. The translocation of mobile nuclides in plants was demonstrated clearly by Rb{sup {minus}83}, Zn{sup {minus}65}, and Fe{sup {minus}59}. Data on the nuclide fraction mobilized from vegetative parts into edible parts was used to assess the percentage of accumulated radionuclides in plants that may reach humans through beans.},
doi = {10.1897/1551-5028(1999)018<2023:SDATOR>2.3.CO;2},
journal = {Environmental Toxicology and Chemistry},
issn = {0730-7268},
number = 9,
volume = 18,
place = {United States},
year = {1999},
month = {9}
}