| Dark septate endophyte enhances maize cadmium (Cd) tolerance by the remodeled host cell walls and the altered Cd subcellular distribution | |
| Shen, Mi; Schneider, Harald1; Xu, Runbing; Cao, Guanhua2; Zhang, Hanbo; Li, Tao; Zhao, Zhiwei | |
| 2020 | |
| Source Publication | ENVIRONMENTAL AND EXPERIMENTAL BOTANY
 |
| ISSN | 0098-8472 |
| Volume | 172Pages:- |
| Abstract | Evidence accumulated in recent years supports the crucial role of remodeled cell walls (CWs) in enabling plants to adapt to environmental challenges. However, the metal tolerance and alleviation mechanisms involving the CWs by endophyte-plant interactions to toxic metals have not yet been elucidated. In the present study, these mechanisms are tested by exploring the maize (Zea mays) Cd tolerance by modifying its root CW structure via inoculation with a dark septate endophyte (DSE) fungus Exophiala pisciphila. Our present study demonstrates that the root CWs were the primary site for Cd accumulation, functioning as a sink for toxic Cd ions. Interestingly, E. pisciphila colonization significantly bioaugmented subcellular compartmentalization of maize roots and increased the Cd content of various CW subfractions through a significantly increased enzyme activity, e.g., pectin methylesterase, as well as an upregulated expression of genes involved in CW biosynthesis and changes in the contents of functional groups in pectin and hemicellulose 1 in response to Cd stress. Consequently, the enhanced Cd compartmentation in plant CWs by DSE lowers the entry of trace metals in the protoplast, thereby conferring the tolerant races of plants that can survive and thrive on metal-contaminated soils. |
| Keyword | Dark septate endophyte (DSE) Exophiala pisciphila Maize (Zea mays) Cell wall Cadmium tolerance mechanism |
| Subject Area | Plant Sciences ; Environmental Sciences |
| DOI | 10.1016/j.envexpbot.2020.104000 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000518704100013 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.xtbg.ac.cn/handle/353005/11662 |
| Collection | 2012年后新成立研究组 |
| Affiliation | 1.Yunnan Univ, State Key Lab Conservat & Utilizat Bioresources Y, Kunming 650091, Yunnan, Peoples R China 2.Chinese Acad Sci, Ctr Integrated Conservat, Xishuangbanna Trop Bot Garden, Menglun Township 666303, Yunnan, Peoples R China 3.Yunnan Univ Tradit Chinese Med, Sch Tradit Chinese Med, Kunming 650500, Yunnan, Peoples R China |
| Recommended Citation GB/T 7714 | Shen, Mi,Schneider, Harald,Xu, Runbing,et al. Dark septate endophyte enhances maize cadmium (Cd) tolerance by the remodeled host cell walls and the altered Cd subcellular distribution[J]. ENVIRONMENTAL AND EXPERIMENTAL BOTANY,2020,172:-. |
| APA | Shen, Mi.,Schneider, Harald.,Xu, Runbing.,Cao, Guanhua.,Zhang, Hanbo.,...&Zhao, Zhiwei.(2020).Dark septate endophyte enhances maize cadmium (Cd) tolerance by the remodeled host cell walls and the altered Cd subcellular distribution.ENVIRONMENTAL AND EXPERIMENTAL BOTANY,172,-. |
| MLA | Shen, Mi,et al."Dark septate endophyte enhances maize cadmium (Cd) tolerance by the remodeled host cell walls and the altered Cd subcellular distribution".ENVIRONMENTAL AND EXPERIMENTAL BOTANY 172(2020):-. |
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| Dark septate endophy（1920KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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