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Alleviating cobalt and lead toxicity in rice using zero valent iron (Fe°) amendments

Simultaneous impact of zero valent iron (Fe°) and rice cultivar on uptake, translocation, and bioaccumulation of cobalt (Co) and lead (Pb) in rice (Oryza sativa L.) was investigated to alleviate Co and Pb toxicity in rice. Kilombero and Faya rice cultivars, amended with Fe° dosages of 0, 6.20, and 1...

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Autores principales: Mlangeni, Angstone Thembachako, Raab, Andrea, Feldmann, Joerg
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9713343/
https://www.ncbi.nlm.nih.gov/pubmed/36468122
http://dx.doi.org/10.1016/j.heliyon.2022.e11928
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author Mlangeni, Angstone Thembachako
Raab, Andrea
Feldmann, Joerg
author_facet Mlangeni, Angstone Thembachako
Raab, Andrea
Feldmann, Joerg
author_sort Mlangeni, Angstone Thembachako
collection PubMed
description Simultaneous impact of zero valent iron (Fe°) and rice cultivar on uptake, translocation, and bioaccumulation of cobalt (Co) and lead (Pb) in rice (Oryza sativa L.) was investigated to alleviate Co and Pb toxicity in rice. Kilombero and Faya rice cultivars, amended with Fe° dosages of 0, 6.20, and 12.40 g Fe° kg(−1) soil, were cultivated under continuous flooding in pots in a greenhouse. Shoot and grain-Co and Pb concentrations were determined using inductively coupled plasma mass spectrometry (ICP-MS). For Co, amending Faya rice with at least 6.20 g Fe° kg(−1) reduced grain-Co accumulation by 33% or more compared to control plants (F = 17.5; p < 0.001) while inconsistent results were obtained for Kilombero. For Pb, Faya also accumulated more than 39% less grain-Pb than control plants (272 μg kg(−1)) while Kilombero accumulated more than 55% less grain-Pb than control plants under the same conditions. Despite reducing grain-Pb accumulation in both cultivar, Fe amendments of at least 6.20 g Fe° kg(−1) reduced grain-Pb accumulation with greater magnitude in Kilombero (55%) than in Faya (39%). Nonetheless, Fe amendments inhibited greater shoots-Co and Pb translocation (≥32%) to grains in Faya compared to Kilombero (≤20%). The work provides a novel promising agronomical practice of reducing Co and Pb bioaccumulation in rice.
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spelling pubmed-97133432022-12-02 Alleviating cobalt and lead toxicity in rice using zero valent iron (Fe°) amendments Mlangeni, Angstone Thembachako Raab, Andrea Feldmann, Joerg Heliyon Research Article Simultaneous impact of zero valent iron (Fe°) and rice cultivar on uptake, translocation, and bioaccumulation of cobalt (Co) and lead (Pb) in rice (Oryza sativa L.) was investigated to alleviate Co and Pb toxicity in rice. Kilombero and Faya rice cultivars, amended with Fe° dosages of 0, 6.20, and 12.40 g Fe° kg(−1) soil, were cultivated under continuous flooding in pots in a greenhouse. Shoot and grain-Co and Pb concentrations were determined using inductively coupled plasma mass spectrometry (ICP-MS). For Co, amending Faya rice with at least 6.20 g Fe° kg(−1) reduced grain-Co accumulation by 33% or more compared to control plants (F = 17.5; p < 0.001) while inconsistent results were obtained for Kilombero. For Pb, Faya also accumulated more than 39% less grain-Pb than control plants (272 μg kg(−1)) while Kilombero accumulated more than 55% less grain-Pb than control plants under the same conditions. Despite reducing grain-Pb accumulation in both cultivar, Fe amendments of at least 6.20 g Fe° kg(−1) reduced grain-Pb accumulation with greater magnitude in Kilombero (55%) than in Faya (39%). Nonetheless, Fe amendments inhibited greater shoots-Co and Pb translocation (≥32%) to grains in Faya compared to Kilombero (≤20%). The work provides a novel promising agronomical practice of reducing Co and Pb bioaccumulation in rice. Elsevier 2022-11-26 /pmc/articles/PMC9713343/ /pubmed/36468122 http://dx.doi.org/10.1016/j.heliyon.2022.e11928 Text en © 2022 The Author(s) https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Research Article
Mlangeni, Angstone Thembachako
Raab, Andrea
Feldmann, Joerg
Alleviating cobalt and lead toxicity in rice using zero valent iron (Fe°) amendments
title Alleviating cobalt and lead toxicity in rice using zero valent iron (Fe°) amendments
title_full Alleviating cobalt and lead toxicity in rice using zero valent iron (Fe°) amendments
title_fullStr Alleviating cobalt and lead toxicity in rice using zero valent iron (Fe°) amendments
title_full_unstemmed Alleviating cobalt and lead toxicity in rice using zero valent iron (Fe°) amendments
title_short Alleviating cobalt and lead toxicity in rice using zero valent iron (Fe°) amendments
title_sort alleviating cobalt and lead toxicity in rice using zero valent iron (fe°) amendments
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9713343/
https://www.ncbi.nlm.nih.gov/pubmed/36468122
http://dx.doi.org/10.1016/j.heliyon.2022.e11928
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