High-resolution imaging of O2 dynamics and metal solubilization in the rhizosphere of the hyperaccumulator Leersia hexandra Swartz

The mobilization of trace metals in the rhizosphere can be affected by the redox potential, which is closely related to the O2 dynamics. This study examined the distributions of O2 and trace metals in the rhizosphere of the subaquatic hyperaccumulator Leersia hexandra Swartz under chromium (Cr) stre...

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Published in:Journal of hazardous materials 2023-08, Vol.455, p.131580-131580, Article 131580
Main Authors: He, Yao, Ding, Na, Yu, Guo, Sunahara, Geoffrey I., Lin, Hua, Zhang, Xuehong, Ullah, Habib, Liu, Jie
Format: Article
Language:English
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Diffusive gradients in thin films
Hyperaccumulator
Leersia hexandra Swartz
Planar optodes
Rhizosphere
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container_title Journal of hazardous materials
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creator He, Yao
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description The mobilization of trace metals in the rhizosphere can be affected by the redox potential, which is closely related to the O2 dynamics. This study examined the distributions of O2 and trace metals in the rhizosphere of the subaquatic hyperaccumulator Leersia hexandra Swartz under chromium (Cr) stress using planar optodes and the diffusive gradients in thin films technique coupled with laser ablation inductively coupled plasma mass spectrometry. The O2 concentrations and oxidized areas in the rhizosphere significantly increased with increases in the light intensity, air humidity, and atmospheric CO2 concentrations (p 
doi_str_mv 10.1016/j.jhazmat.2023.131580
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[Display omitted] •O2 dynamics and metal distribution in the rhizosphere of L. hexandra were studied combining PO and DGT-LA-ICPMS.•O2 dynamics varied with root growth and were significantly affected by environmental conditions.•The mobility of trace metals in the rhizosphere was significantly correlated with O2 concentration in soil solution.</description><identifier>ISSN: 0304-3894</identifier><identifier>EISSN: 1873-3336</identifier><identifier>DOI: 10.1016/j.jhazmat.2023.131580</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Diffusive gradients in thin films ; Hyperaccumulator ; Leersia hexandra Swartz ; Planar optodes ; Rhizosphere</subject><ispartof>Journal of hazardous materials, 2023-08, Vol.455, p.131580-131580, Article 131580</ispartof><rights>2023 Elsevier B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c342t-da2457ffb0f41539bf4cd36a6ca2bdfe9b978f9cbcadddec9ca0a57ac9ecfe2d3</citedby><cites>FETCH-LOGICAL-c342t-da2457ffb0f41539bf4cd36a6ca2bdfe9b978f9cbcadddec9ca0a57ac9ecfe2d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27923,27924</link.rule.ids></links><search><creatorcontrib>He, Yao</creatorcontrib><creatorcontrib>Ding, Na</creatorcontrib><creatorcontrib>Yu, Guo</creatorcontrib><creatorcontrib>Sunahara, Geoffrey I.</creatorcontrib><creatorcontrib>Lin, Hua</creatorcontrib><creatorcontrib>Zhang, Xuehong</creatorcontrib><creatorcontrib>Ullah, Habib</creatorcontrib><creatorcontrib>Liu, Jie</creatorcontrib><title>High-resolution imaging of O2 dynamics and metal solubilization in the rhizosphere of the hyperaccumulator Leersia hexandra Swartz</title><title>Journal of hazardous materials</title><description>The mobilization of trace metals in the rhizosphere can be affected by the redox potential, which is closely related to the O2 dynamics. 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subjects Diffusive gradients in thin films
Hyperaccumulator
Leersia hexandra Swartz
Planar optodes
Rhizosphere
title High-resolution imaging of O2 dynamics and metal solubilization in the rhizosphere of the hyperaccumulator Leersia hexandra Swartz
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