Platinum uptake, distribution and toxicity in Arabidopsis thaliana L. plants

Helena Gawrońska , Arkadiusz Przybysz , Elżbieta Szalacha , Katarzyna Pawlak , Katarzyna Brama , Agata Miszczak , Marta Stankiewicz-Kosyl , Stanisław W. Gawroński

Abstract

Platinum (Pt) occurs at very low levels in parent rock and soils in unpolluted areas, however concentrations of this element in urban areas is steadily increasing. At the levels recorded in urban environments, Pt is not yet phytotoxic, but it already poses a threat to human health, particularly when present in airborne particulate matter. In this study an attempt was made to evaluate Pt(II) uptake, distribution and toxicity in Arabidopsis thaliana L. plants. Arabidopsis thaliana plants were hydroponically grown with increasing Pt(II) concentrations in the range of 0.025–100 μM. Pt(II) was taken up by the roots and translocated to the rosette. At lower Pt(II) concentrations (≤ 2.5 μM) hormesis was recorded, plant growth was stimulated, the efficiency of the photosynthetic apparatus improved and biomass accumulation increased. Higher Pt(II) concentrations were phytotoxic, causing growth inhibition, impairment of the photosynthetic apparatus, membrane injuries and a reduction in biomass accumulation. Exposure of A. thaliana to Pt(II) also resulted in an increased content of phytochelatins throughout the plant and glutathione in the rosette. Uptake and translocation of Pt(II) to harvestable organs of A. thaliana suggests that species of higher biomass accumulation from the Brassicaceae family can probably be used for the phytoextraction of Pt-polluted sites.
Author Helena Gawrońska
Helena Gawrońska,,
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, Arkadiusz Przybysz
Arkadiusz Przybysz,,
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, Elżbieta Szalacha
Elżbieta Szalacha,,
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, Katarzyna Pawlak (FC / CAC)
Katarzyna Pawlak,,
- Chair Of Analytical Chemistry
, Katarzyna Brama (FC / CAC)
Katarzyna Brama,,
- Chair Of Analytical Chemistry
, Agata Miszczak (FC / CAC)
Agata Miszczak,,
- Chair Of Analytical Chemistry
, Marta Stankiewicz-Kosyl
Marta Stankiewicz-Kosyl,,
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, Stanisław W. Gawroński
Stanisław W. Gawroński,,
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Journal seriesEcotoxicology and Environmental Safety, ISSN 0147-6513, (A 30 pkt)
Issue year2018
Vol147
Pages982-989
Publication size in sheets0.5
Keywords in EnglishPlatinum, plant, phytoremediation, metal accumulation
ASJC Classification2307 Health, Toxicology and Mutagenesis; 2739 Public Health, Environmental and Occupational Health; 2310 Pollution; 2700 General Medicine
DOIDOI:10.1016/j.ecoenv.2017.09.065
Languageen angielski
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wdpb_publikacje_pliki_plik_publikacja_3228_org.pdf 561.75 KB
Score (nominal)30
ScoreMinisterial score = 30.0, 11-03-2019, ArticleFromJournal
Ministerial score (2013-2016) = 30.0, 11-03-2019, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2017 = 1.449; WoS Impact Factor: 2017 = 3.974 (2) - 2017=4.0 (5)
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