Dark septate endophyte enhances maize cadmium (Cd) tolerance by the remodeled host cell walls and the altered Cd subcellular distribution

doi:10.1016/j.envexpbot.2020.104000

CORC > 西双版纳热带植物园 > 中国科学院西双版纳热带植物园 > 2012年后新成立研究组

	Dark septate endophyte enhances maize cadmium (Cd) tolerance by the remodeled host cell walls and the altered Cd subcellular distribution
	Shen, Mi ; Schneider, Harald 2; Xu, Runbing ; Cao, Guanhua 3; Zhang, Hanbo ; Li, Tao ; Zhao, Zhiwei
刊名	ENVIRONMENTAL AND EXPERIMENTAL BOTANY
	2020
卷号	172 页码:-
关键词	Dark septate endophyte (DSE) Exophiala pisciphila Maize (Zea mays) Cell wall Cadmium tolerance mechanism
ISSN号	0098-8472
DOI	10.1016/j.envexpbot.2020.104000
英文摘要	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.
学科主题	Plant Sciences ; Environmental Sciences
语种	英语
WOS记录号	WOS:000518704100013
内容类型	期刊论文
源URL	[http://ir.xtbg.org.cn/handle/353005/11662]
专题	西双版纳热带植物园_2012年后新成立研究组
作者单位	1.Yunnan Univ Tradit Chinese Med, Sch Tradit Chinese Med, Kunming 650500, Yunnan, Peoples R China 2.Yunnan Univ, State Key Lab Conservat & Utilizat Bioresources Y, Kunming 650091, Yunnan, Peoples R China 3.Chinese Acad Sci, Ctr Integrated Conservat, Xishuangbanna Trop Bot Garden, Menglun Township 666303, Yunnan, Peoples R China
推荐引用方式 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):-.