Absorption of radionuclides from the Fukushima nuclear accident by a novel algal strain.
Large quantities of radionuclides have leaked from the Fukushima Daiichi Nuclear Power Plant into the surrounding environment. Effective prevention of health hazards resulting from radiation exposure will require the development of efficient and economical methods for decontaminating radioactive was...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2012-01-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC3440386?pdf=render |
| _version_ | 1828516562599936000 |
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| author | Hiroki Shimura Katsuhiko Itoh Atsushi Sugiyama Sayaka Ichijo Masashi Ichijo Fumihiko Furuya Yuji Nakamura Ken Kitahara Kazuhiko Kobayashi Yasuhiro Yukawa Tetsuro Kobayashi |
| author_facet | Hiroki Shimura Katsuhiko Itoh Atsushi Sugiyama Sayaka Ichijo Masashi Ichijo Fumihiko Furuya Yuji Nakamura Ken Kitahara Kazuhiko Kobayashi Yasuhiro Yukawa Tetsuro Kobayashi |
| author_sort | Hiroki Shimura |
| collection | DOAJ |
| description | Large quantities of radionuclides have leaked from the Fukushima Daiichi Nuclear Power Plant into the surrounding environment. Effective prevention of health hazards resulting from radiation exposure will require the development of efficient and economical methods for decontaminating radioactive wastewater and aquatic ecosystems. Here we describe the accumulation of water-soluble radionuclides released by nuclear reactors by a novel strain of alga. The newly discovered green microalgae, Parachlorella sp. binos (Binos) has a thick alginate-containing extracellular matrix and abundant chloroplasts. When this strain was cultured with radioiodine, a light-dependent uptake of radioiodine was observed. In dark conditions, radioiodine uptake was induced by addition of hydrogen superoxide. High-resolution secondary ion mass spectrometry (SIMS) showed a localization of accumulated iodine in the cytosol. This alga also exhibited highly efficient incorporation of the radioactive isotopes strontium and cesium in a light-independent manner. SIMS analysis showed that strontium was distributed in the extracellular matrix of Binos. Finally we also showed the ability of this strain to accumulate radioactive nuclides from water and soil samples collected from a heavily contaminated area in Fukushima. Our results demonstrate that Binos could be applied to the decontamination of iodine, strontium and cesium radioisotopes, which are most commonly encountered after nuclear reactor accidents. |
| first_indexed | 2024-12-11T18:29:43Z |
| format | Article |
| id | doaj.art-6855cd74f45d46e88dab584f347bc7af |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-11T18:29:43Z |
| publishDate | 2012-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-6855cd74f45d46e88dab584f347bc7af2022-12-22T00:54:57ZengPublic Library of Science (PLoS)PLoS ONE1932-62032012-01-0179e4420010.1371/journal.pone.0044200Absorption of radionuclides from the Fukushima nuclear accident by a novel algal strain.Hiroki ShimuraKatsuhiko ItohAtsushi SugiyamaSayaka IchijoMasashi IchijoFumihiko FuruyaYuji NakamuraKen KitaharaKazuhiko KobayashiYasuhiro YukawaTetsuro KobayashiLarge quantities of radionuclides have leaked from the Fukushima Daiichi Nuclear Power Plant into the surrounding environment. Effective prevention of health hazards resulting from radiation exposure will require the development of efficient and economical methods for decontaminating radioactive wastewater and aquatic ecosystems. Here we describe the accumulation of water-soluble radionuclides released by nuclear reactors by a novel strain of alga. The newly discovered green microalgae, Parachlorella sp. binos (Binos) has a thick alginate-containing extracellular matrix and abundant chloroplasts. When this strain was cultured with radioiodine, a light-dependent uptake of radioiodine was observed. In dark conditions, radioiodine uptake was induced by addition of hydrogen superoxide. High-resolution secondary ion mass spectrometry (SIMS) showed a localization of accumulated iodine in the cytosol. This alga also exhibited highly efficient incorporation of the radioactive isotopes strontium and cesium in a light-independent manner. SIMS analysis showed that strontium was distributed in the extracellular matrix of Binos. Finally we also showed the ability of this strain to accumulate radioactive nuclides from water and soil samples collected from a heavily contaminated area in Fukushima. Our results demonstrate that Binos could be applied to the decontamination of iodine, strontium and cesium radioisotopes, which are most commonly encountered after nuclear reactor accidents.http://europepmc.org/articles/PMC3440386?pdf=render |
| spellingShingle | Hiroki Shimura Katsuhiko Itoh Atsushi Sugiyama Sayaka Ichijo Masashi Ichijo Fumihiko Furuya Yuji Nakamura Ken Kitahara Kazuhiko Kobayashi Yasuhiro Yukawa Tetsuro Kobayashi Absorption of radionuclides from the Fukushima nuclear accident by a novel algal strain. PLoS ONE |
| title | Absorption of radionuclides from the Fukushima nuclear accident by a novel algal strain. |
| title_full | Absorption of radionuclides from the Fukushima nuclear accident by a novel algal strain. |
| title_fullStr | Absorption of radionuclides from the Fukushima nuclear accident by a novel algal strain. |
| title_full_unstemmed | Absorption of radionuclides from the Fukushima nuclear accident by a novel algal strain. |
| title_short | Absorption of radionuclides from the Fukushima nuclear accident by a novel algal strain. |
| title_sort | absorption of radionuclides from the fukushima nuclear accident by a novel algal strain |
| url | http://europepmc.org/articles/PMC3440386?pdf=render |
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