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	Chromium detoxification in arbuscular mycorrhizal symbiosis mediated by sulfur uptake and metabolism
	Wu, Songlin1,2; Hu, Yajun1,3; Zhang, Xin1; Sun, Yuqing1,4; Wu, Zhaoxiang1,5; Li, Tao1; Lv, Jitao6; Li, Jinglong1,4; Zhang, Jing7; Zheng, Lirong7
刊名	Environmental and experimental botany
	2018-03-01
卷号	147页码:43-52
关键词	Arbuscular mycorrhiza Medicago truncatula Chromium tolerance Sulfur metabolites Xanes
ISSN号	0098-8472
DOI	10.1016/j.envexpbot.2017.11.010
通讯作者	Chen, baodong(bdchen@rcees.ac.cn)
英文摘要	It has been well demonstrated that arbuscular mycorrhizal (am) symbiosis can improve plant chromium (cr) tolerance, but the detoxification mechanisms are still unsolved. in the present study the role of am symbiosis in plant sulfur (s) acquisition and metabolism related to cr detoxification was investigated. medicago truncatula plants were cultivated with/without am fungus rhizophagus irregularis in cr(vi) contaminated soils at two soil s and phosphorus (p) concentrations. sulfur uptake, transport and metabolism by plants were determined by biochemical and molecular methods. meanwhile, cr uptake and transformation were characterized by using spectroscopic methods, including synchrotron based x-ray absorption near edge structure (xanes) analysis. the results indicated that mycorrhizal inoculation improved plant s acquisition by up-regulating the expression of high affinity sulfate transporter genes (i.e. misultr1.1, mtsultr1.2) in plant roots. mycorrhizal colonization also systematically regulated s transport and metabolism for cr(vi) detoxification. xanes analysis revealed the cr immobilization in am roots by phosphate and histidine-like ligands rather than thiol groups. correlation analysis further confirmed possible involvement of s metabolites in the relief of cr induced oxidative stress. mycorrhizal effects were more pronounced under low p condition. the study allowed a new insight into the mechanisms of enhanced plant cr tolerance by am symbiosis.
WOS关键词	X-RAY-ABSORPTION ; ZEA-MAYS L. ; FUNGUS GLOMUS-MOSSEAE ; MEDICAGO-TRUNCATULA ; OXIDATIVE STRESS ; EXTRARADICAL MYCELIUM ; SULFATE TRANSPORTER ; CHAMOMILE PLANTS ; TOLERANCE ; REDUCTION
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology
WOS类目	Plant Sciences ; Environmental Sciences
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000424181300005
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2177991
专题	高能物理研究所
通讯作者	Chen, Baodong
作者单位	1.Chinese Acad Sci, State Key Lab Urban & Reg Ecol, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China 2.Univ Queensland, Environm Ctr CMLR, Sustainable Minerals Inst, Brisbane, Qld 4072, Australia 3.Chinese Acad Sci, Key Lab Agroecol Proc Subtrop Reg, Inst Subtrop Agr, Changsha 410125, Hunan, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Jiangxi Acad Sci, Jiangxi Engn & Technol Res Ctr Ecol Remediat Heav, Inst Biol & Resources, Nanchang 330096, Jiangxi, Peoples R China 6.Chinese Acad Sci, State Key Lab Environm Chem & Ecotoxicol, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China 7.Chinese Acad Sci, Beijing Synchrotron Radiat Facil, Inst High Energy Phys, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wu, Songlin,Hu, Yajun,Zhang, Xin,et al. Chromium detoxification in arbuscular mycorrhizal symbiosis mediated by sulfur uptake and metabolism[J]. Environmental and experimental botany,2018,147:43-52.
APA	Wu, Songlin.,Hu, Yajun.,Zhang, Xin.,Sun, Yuqing.,Wu, Zhaoxiang.,...&Chen, Baodong.(2018).Chromium detoxification in arbuscular mycorrhizal symbiosis mediated by sulfur uptake and metabolism.Environmental and experimental botany,147,43-52.
MLA	Wu, Songlin,et al."Chromium detoxification in arbuscular mycorrhizal symbiosis mediated by sulfur uptake and metabolism".Environmental and experimental botany 147(2018):43-52.

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