Absorption of radionuclides from the Fukushima nuclear accident by a novel algal strain
Open accessAbstract
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.
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Parachlorella sp. binos exhibited highly efficient incorporation of radioactive isotopes of iodine, strontium and cesium.
“For example, the newly discovered green microalga, Parachlorella sp. binos (Binos) exhibited highly efficient incorporation of radioactive isotopes of iodine, strontium and cesium.”
From Anticancer and Cancer Preventive Properties of Marine Polysaccharides: Some Results and Prospects (2013) · cites this paper as [114]
Microalgae can accumulate radioactive nuclides from water and soil samples collected from the heavily contaminated area in Fukushima.
“The authors also showed the ability of microalgae to accumulate radioactive nuclides from water and soil samples collected from the heavily contaminated area in Fukushima [114].”
From Anticancer and Cancer Preventive Properties of Marine Polysaccharides: Some Results and Prospects (2013) · cites this paper as [114]
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Cites
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Anticancer and Cancer Preventive Properties of Marine Polysaccharides: Some Results and Prospects
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- Authors
- Shimura, H., Itoh, K., Sugiyama, A., Ichijo, S., Ichijo, M., Furuya, F., Nakamura, Y., Kitahara, K., Kobayashi, K., Yukawa, Y., & Kobayashi, T.
- Affiliations
- University of Yamanashi (JP)
- Toho University (JP)
- The University of Tokyo (JP)
- Corresponding author
- Kobayashi, Tetsuro
- ORCID
- Venue
- PLoS ONE
- Publisher
- Public Library of Science (PLoS)
- Published
- 2012-09-12
- Volume
- 7
- Issue
- 9
- Pages
- e44200
- ISSN
- 1932-6203 (ISSN-L)
- PMC
- PMC3440386
- OpenAlex
- W1971472167
- Cited by
- 62
- References
- 18
- Citations by year
- 2026: 4 · 2025: 2 · 2024: 3 · 2023: 1 · 2022: 6 · 2021: 5 · 2020: 6 · 2019: 2 · 2018: 5 · 2017: 4 · 2016: 3 · 2015: 7 · 2014: 10 · 2013: 4
- FWCI
- 5.56
- Type
- journal article
- Language
- en
- Update notices
- correction (2014-04-16)
- Open access
- gold
- doi.org
- Licence
- Locations
- PLoS ONE (publishedVersion, cc-by)
- Europe PMC (PubMed Central) (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Funders
- Japan Society for the Promotion of Science (24651074)
- Topics
- Physical Sciences › Environmental Science › Global and Planetary Change › Radioactive contamination and transfer
- Physical Sciences › Chemistry › Inorganic Chemistry › Radioactive element chemistry and processing
- Physical Sciences › Environmental Science › Waste Management and Disposal › Chemical Synthesis and Characterization
- Keywords
- Fukushima Daiichi nuclear accident, radionuclide accumulation, green microalgae, radioiodine uptake, hydrogen peroxide, strontium uptake, cesium uptake, soil contamination
- MeSH terms
- Absorption, Biodegradation, Environmental, Cesium Radioisotopes, Iodine Radioisotopes, Radioisotopes, Soil Pollutants, Radioactive, Strontium Radioisotopes, Water Pollutants, Radioactive, Microalgae, Fukushima Nuclear Accident
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