The Promotion of <i>Festuca sinensis</i> under Heavy Metal Treatment Mediated by <i>Epichloë</i> Endophyte

To more clearly clarify the relationship between the <i>Epichloë</i> endophyte and its host, <i>F. sinensis</i>, the effects of <i>Epichloë</i> endophyte on <i>F. sinensis</i> performance under heavy metal treatment was investigated. The growth perform...

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Main Authors: Meining Wang, Pei Tian, Min Gao, Miaomiao Li
Format: Article
Language:English
Published: MDPI AG 2021-10-01
Series:Agronomy
Subjects:
Online Access:https://www.mdpi.com/2073-4395/11/10/2049
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author Meining Wang
Pei Tian
Min Gao
Miaomiao Li
author_facet Meining Wang
Pei Tian
Min Gao
Miaomiao Li
author_sort Meining Wang
collection DOAJ
description To more clearly clarify the relationship between the <i>Epichloë</i> endophyte and its host, <i>F. sinensis</i>, the effects of <i>Epichloë</i> endophyte on <i>F. sinensis</i> performance under heavy metal treatment was investigated. The growth performance and physiology variations of <i>F. sinensis</i> with (E+) and without the endophyte (E−) were evaluated after they were subjected to Zn<sup>2+</sup> and Cd<sup>2+</sup> treatments. The results showed that heavy metal treatments had significant effects on plants, as the performance of plants under Zn<sup>2+</sup> and Cd<sup>2+</sup> treatments was significantly different with plants under control treatment (<i>p</i> < 0.05). Cd<sup>2+</sup> treatments showed a hormesis effect, whereas Zn<sup>2+</sup> did not. The endophyte increased host heavy metal stress tolerance by promoting host growth as the E+ plants had significantly higher plant height, tiller number, root length (<i>p <</i> 0.05). The endophyte also promoted ion uptake by the host and induced endogenous hormone production (<i>p <</i> 0.05). These results suggested that the <i>Epichloë</i> endophyte regulated host growth and physiology to improve association tolerance to environmental conditions. This study provides another example that the <i>Epichloë</i> endophyte can increase plant tolerance to metal stress.
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spelling doaj.art-cac6acc3f4bb48c59b33726c22eaedac2023-11-22T17:07:28ZengMDPI AGAgronomy2073-43952021-10-011110204910.3390/agronomy11102049The Promotion of <i>Festuca sinensis</i> under Heavy Metal Treatment Mediated by <i>Epichloë</i> EndophyteMeining Wang0Pei Tian1Min Gao2Miaomiao Li3State Key Laboratory of Grassland Agro-Ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, ChinaState Key Laboratory of Grassland Agro-Ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, ChinaState Key Laboratory of Grassland Agro-Ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, ChinaState Key Laboratory of Grassland Agro-Ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, ChinaTo more clearly clarify the relationship between the <i>Epichloë</i> endophyte and its host, <i>F. sinensis</i>, the effects of <i>Epichloë</i> endophyte on <i>F. sinensis</i> performance under heavy metal treatment was investigated. The growth performance and physiology variations of <i>F. sinensis</i> with (E+) and without the endophyte (E−) were evaluated after they were subjected to Zn<sup>2+</sup> and Cd<sup>2+</sup> treatments. The results showed that heavy metal treatments had significant effects on plants, as the performance of plants under Zn<sup>2+</sup> and Cd<sup>2+</sup> treatments was significantly different with plants under control treatment (<i>p</i> < 0.05). Cd<sup>2+</sup> treatments showed a hormesis effect, whereas Zn<sup>2+</sup> did not. The endophyte increased host heavy metal stress tolerance by promoting host growth as the E+ plants had significantly higher plant height, tiller number, root length (<i>p <</i> 0.05). The endophyte also promoted ion uptake by the host and induced endogenous hormone production (<i>p <</i> 0.05). These results suggested that the <i>Epichloë</i> endophyte regulated host growth and physiology to improve association tolerance to environmental conditions. This study provides another example that the <i>Epichloë</i> endophyte can increase plant tolerance to metal stress.https://www.mdpi.com/2073-4395/11/10/2049alkaloidsCd<sup>2+</sup> treatment<i>Epichloë</i> <i>sinensis</i>hormonehost growthion absorbing
spellingShingle Meining Wang
Pei Tian
Min Gao
Miaomiao Li
The Promotion of <i>Festuca sinensis</i> under Heavy Metal Treatment Mediated by <i>Epichloë</i> Endophyte
Agronomy
alkaloids
Cd<sup>2+</sup> treatment
<i>Epichloë</i> <i>sinensis</i>
hormone
host growth
ion absorbing
title The Promotion of <i>Festuca sinensis</i> under Heavy Metal Treatment Mediated by <i>Epichloë</i> Endophyte
title_full The Promotion of <i>Festuca sinensis</i> under Heavy Metal Treatment Mediated by <i>Epichloë</i> Endophyte
title_fullStr The Promotion of <i>Festuca sinensis</i> under Heavy Metal Treatment Mediated by <i>Epichloë</i> Endophyte
title_full_unstemmed The Promotion of <i>Festuca sinensis</i> under Heavy Metal Treatment Mediated by <i>Epichloë</i> Endophyte
title_short The Promotion of <i>Festuca sinensis</i> under Heavy Metal Treatment Mediated by <i>Epichloë</i> Endophyte
title_sort promotion of i festuca sinensis i under heavy metal treatment mediated by i epichloe i endophyte
topic alkaloids
Cd<sup>2+</sup> treatment
<i>Epichloë</i> <i>sinensis</i>
hormone
host growth
ion absorbing
url https://www.mdpi.com/2073-4395/11/10/2049
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