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Toxic effects of cadmium on tall fescue and different responses of the photosynthetic activities in the photosystem electron donor and acceptor sides

Tall fescue (Festuca arundinacea Schreb) is a turf grass species which is widely used for rhizoremediation of organic contaminants and shows notable prospects in heavy metal phytoremediation. In this study, different concentrations of cadmium ion (Cd(2+)) were applied to study toxic effects of Cd(2+...

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Autores principales: Huang, Meiyu, Zhu, Huihui, Zhang, Jing, Tang, Diyong, Han, Xiaole, Chen, Liang, Du, Dongyun, Yao, Jun, Chen, Ke, Sun, Jie
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5662633/
https://www.ncbi.nlm.nih.gov/pubmed/29085018
http://dx.doi.org/10.1038/s41598-017-14718-w
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author Huang, Meiyu
Zhu, Huihui
Zhang, Jing
Tang, Diyong
Han, Xiaole
Chen, Liang
Du, Dongyun
Yao, Jun
Chen, Ke
Sun, Jie
author_facet Huang, Meiyu
Zhu, Huihui
Zhang, Jing
Tang, Diyong
Han, Xiaole
Chen, Liang
Du, Dongyun
Yao, Jun
Chen, Ke
Sun, Jie
author_sort Huang, Meiyu
collection PubMed
description Tall fescue (Festuca arundinacea Schreb) is a turf grass species which is widely used for rhizoremediation of organic contaminants and shows notable prospects in heavy metal phytoremediation. In this study, different concentrations of cadmium ion (Cd(2+)) were applied to study toxic effects of Cd(2+) and responses of tall fescue by soilless culture. Tall fescue showed comparable high tolerance to Cd(2+) as Indian mustard (Brassica juncea L.). Additionally, the treatment with high concentration of Cd(2+) leaded to decreased chlorophyll contents, production of reactive oxygen species (ROS) and lipid peroxidation, as well as damage of cell membrane, necrosis and apoptosis in tall fescue roots, and toxicity of Cd(2+) on physiologic properties of tall fescue has been well discussed. Moreover, in photosystem II electron donor side, electron transport from oxygen evolution complex (OEC) to Yz residue of D1 protein was inhibited under high Cd(2+) treatments, which may be due to the Cd(2+) induced ROS production and the replacement of Ca(2+) in the core of OEC. In electron acceptor side, electron transport efficiency from quinone B to photosystem I acceptors increased under high Cd(2+) treatments, which may be an important response for plants against Cd(2+) toxicity and its mechanism needs our further study.
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spelling pubmed-56626332017-11-08 Toxic effects of cadmium on tall fescue and different responses of the photosynthetic activities in the photosystem electron donor and acceptor sides Huang, Meiyu Zhu, Huihui Zhang, Jing Tang, Diyong Han, Xiaole Chen, Liang Du, Dongyun Yao, Jun Chen, Ke Sun, Jie Sci Rep Article Tall fescue (Festuca arundinacea Schreb) is a turf grass species which is widely used for rhizoremediation of organic contaminants and shows notable prospects in heavy metal phytoremediation. In this study, different concentrations of cadmium ion (Cd(2+)) were applied to study toxic effects of Cd(2+) and responses of tall fescue by soilless culture. Tall fescue showed comparable high tolerance to Cd(2+) as Indian mustard (Brassica juncea L.). Additionally, the treatment with high concentration of Cd(2+) leaded to decreased chlorophyll contents, production of reactive oxygen species (ROS) and lipid peroxidation, as well as damage of cell membrane, necrosis and apoptosis in tall fescue roots, and toxicity of Cd(2+) on physiologic properties of tall fescue has been well discussed. Moreover, in photosystem II electron donor side, electron transport from oxygen evolution complex (OEC) to Yz residue of D1 protein was inhibited under high Cd(2+) treatments, which may be due to the Cd(2+) induced ROS production and the replacement of Ca(2+) in the core of OEC. In electron acceptor side, electron transport efficiency from quinone B to photosystem I acceptors increased under high Cd(2+) treatments, which may be an important response for plants against Cd(2+) toxicity and its mechanism needs our further study. Nature Publishing Group UK 2017-10-30 /pmc/articles/PMC5662633/ /pubmed/29085018 http://dx.doi.org/10.1038/s41598-017-14718-w Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Huang, Meiyu
Zhu, Huihui
Zhang, Jing
Tang, Diyong
Han, Xiaole
Chen, Liang
Du, Dongyun
Yao, Jun
Chen, Ke
Sun, Jie
Toxic effects of cadmium on tall fescue and different responses of the photosynthetic activities in the photosystem electron donor and acceptor sides
title Toxic effects of cadmium on tall fescue and different responses of the photosynthetic activities in the photosystem electron donor and acceptor sides
title_full Toxic effects of cadmium on tall fescue and different responses of the photosynthetic activities in the photosystem electron donor and acceptor sides
title_fullStr Toxic effects of cadmium on tall fescue and different responses of the photosynthetic activities in the photosystem electron donor and acceptor sides
title_full_unstemmed Toxic effects of cadmium on tall fescue and different responses of the photosynthetic activities in the photosystem electron donor and acceptor sides
title_short Toxic effects of cadmium on tall fescue and different responses of the photosynthetic activities in the photosystem electron donor and acceptor sides
title_sort toxic effects of cadmium on tall fescue and different responses of the photosynthetic activities in the photosystem electron donor and acceptor sides
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5662633/
https://www.ncbi.nlm.nih.gov/pubmed/29085018
http://dx.doi.org/10.1038/s41598-017-14718-w
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