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Capacity of Nerium oleander to phytoremediate Sb-contaminated soils assisted by organic acids and oxygen nanobubbles

Seridou Petroula, Monogyiou Sofia, Syranidou Evdokia, Kalogerakis Nikos

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URIhttp://purl.tuc.gr/dl/dias/FD23BC0C-5D31-4E98-AF4F-123217A403FD-
Identifierhttps://doi.org/10.3390/plants12010091-
Identifierhttps://www.mdpi.com/2223-7747/12/1/91-
Languageen-
Extent17 pagesen
TitleCapacity of Nerium oleander to phytoremediate Sb-contaminated soils assisted by organic acids and oxygen nanobubblesen
CreatorSeridou Petroulaen
CreatorΣεριδου Πετρουλαel
CreatorMonogyiou Sofiaen
CreatorΜονογυιου Σοφιαel
CreatorSyranidou Evdokiaen
CreatorΣυρανιδου Ευδοκιαel
CreatorKalogerakis Nikosen
CreatorΚαλογερακης Νικοςel
PublisherMDPIen
Content SummaryAntimony (Sb) is considered to be a toxic metalloid of increasing prevalence in the environment. Although several phytoremediation studies have been conducted, research regarding the mechanisms of Sb accumulation and translocation within plants remains limited. In this study, soil from a shooting range was collected and spiked with an initial Sb(III) concentration of 50 mg/kg. A pot experiment was conducted to investigate whether Nerium oleander could accumulate Sb in the root and further translocate it to the aboveground tissue. Biostimulation of the soil was performed by the addition of organic acids (OAs), consisting of citric, ascorbic, and oxalic acid at low (7 mmol/kg) or high (70 mmol/kg) concentrations. The impact of irrigation with water supplemented with oxygen nanobubbles (O2NBs) was also investigated. The results demonstrate that there was a loss in plant growth in all treatments and the presence of OAs and O2NBs assisted the plant to maintain the water content at the level close to the control. The plant was not affected with regards to chlorophyll content in all treatments, while the antioxidant enzyme activity of guaiacol peroxidase (GPOD) in the roots was found to be significantly higher in the presence of Sb. Results revealed that Sb accumulation was greater in the treatment with the highest OAs concentration, with a bioconcentration factor greater than 1.0. The translocation of Sb for every treatment was very low, confirming that N. oleander plant cannot transfer Sb from the root to the shoots. A higher amount of Sb was accumulated in the plants that were irrigated with the O2NBs, although the translocation of Sb was not increased. The present study provides evidence for the phytoremediation capacity of N. oleander to bioaccumulate Sb when assisted by biostimulation with OAs.en
Type of ItemPeer-Reviewed Journal Publicationen
Type of ItemΔημοσίευση σε Περιοδικό με Κριτέςel
Licensehttp://creativecommons.org/licenses/by/4.0/en
Date of Item2023-03-23-
Date of Publication2023-
SubjectNerium oleanderen
SubjectAntimonyen
SubjectPhytoremediationen
SubjectNanobubblesen
SubjectOrganic acidsen
Bibliographic CitationP. Seridou, S. Monogyiou, E. Syranidou, and N. Kalogerakis, “Capacity of Nerium oleander to phytoremediate Sb-contaminated soils assisted by organic acids and oxygen nanobubbles,” Plants, vol. 12, no. 1, Jan. 2023, doi: 10.3390/plants12010091.en

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