Nitric oxide alleviates cadmium toxicity in tall fescue photosystem II on the electron donor side

doi:10.1016/j.envexpbot.2017.02.008

CORC > 武汉植物园 > 中国科学院武汉植物园

	Nitric oxide alleviates cadmium toxicity in tall fescue photosystem II on the electron donor side
	Zhuo, Yaqi 3,4; Qiu, Shou 3; Arnombo, Erick 1; Zhu, Qing 2; Tang, Diyong 3; Huang, Meiyu 3; Han, Xiaole 4; Chen, Liang 1; Wang, Sha 4; Chen, Ke 3
刊名	ENVIRONMENTAL AND EXPERIMENTAL BOTANY
	2017-05-01
卷号	137 页码:110-118
关键词	Phytoremediation Abiotic stress Nitric oxide Fluorescence transient
ISSN号	0098-8472
DOI	10.1016/j.envexpbot.2017.02.008
英文摘要	Tall fescue (Festuca arundinacea) possesses remarkable prospects in heavy metal phytoremediation. Nitric oxide (NO) plays multifunctional roles in plant growth, development and the regulation of cellular mechanisms. In this study, we evaluated the potential use of tall fescue for cadmium (Cd) phytoremediation and the contribution of NO to the process. Different concentrations of Cd2+ were applied to study the toxic effects of Cd2+ and its absorption in tall fescue. Sodium nitroprusside (SNP) was used as exogenous NO donor and NG-nitro-L-arginine-methyl ester (L-NAME) was used as a NO synthesis inhibitor to evaluate the role of NO in tall fescue phytoremediation. The tall fescue growth parameters and photosystem II (PSII) activities were determined. The performance of the tall fescue was inhibited by an increase in the Cd2+ concentration. The SNP treatment improved the behaviour of tall fescue against Cd2+ stress, while the L-NAME treatment led to the opposite results in certain cases. Additionally, SNP treatment reduced the Cd2+ contents of the tall fescue shoots. The study of OJIP curves showed that Cd2+ treatment possessed negative effects on PSII grouping and NO treatment could alleviate Cd2+ toxicity on PSII. Moreover, JIP test depicted toxic effect of Cd2+ upon tall fescue and the protective role of NO against heavy metal stress. Overall, the tall fescue exhibited high tolerance to Cd2+ stress and NO protected the fescue from Cd2+. Cd2+ toxicity in the tall fescue PSII is primarily localized on the electron donor side. NO alleviated Cd2+ toxicity on the PSII electron donor side, which may be due to its role in the regulation of the level and toxicity of reactive oxygen species. (C) 2017 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[41503067] ; National Natural Science Foundation of China[21477165] ; National Natural Science Foundation of China[21503283] ; National Sci-Tech Support Plan[2015BAB01B04] ; Fundamental Research Funds for the Central Universities[CZQ15010]
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000398752400010
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/1383]
专题	中国科学院武汉植物园
通讯作者	Chen, Ke; Sun, Jie
作者单位	1.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Plant Germplasm Enhancement & Specialty A, Lumo St, Wuhan 430074, Peoples R China 2.Wuhan Kaidi Elect Power Environm Co Ltd, Kaidi Bldg,T1 Jiangxia Ave, Wuhan 430223, Peoples R China 3.South Cent Univ Nationalities, Coll Resources & Environm Sci, 182 Minyuan Rd, Wuhan 430074, Peoples R China 4.South Cent Univ Nationalities, Coll Chem & Mat Sci, 182 Minyuan Rd, Wuhan 430074, Peoples R China
推荐引用方式 GB/T 7714	Zhuo, Yaqi,Qiu, Shou,Arnombo, Erick,et al. Nitric oxide alleviates cadmium toxicity in tall fescue photosystem II on the electron donor side[J]. ENVIRONMENTAL AND EXPERIMENTAL BOTANY,2017,137:110-118.
APA	Zhuo, Yaqi.,Qiu, Shou.,Arnombo, Erick.,Zhu, Qing.,Tang, Diyong.,...&Sun, Jie.(2017).Nitric oxide alleviates cadmium toxicity in tall fescue photosystem II on the electron donor side.ENVIRONMENTAL AND EXPERIMENTAL BOTANY,137,110-118.
MLA	Zhuo, Yaqi,et al."Nitric oxide alleviates cadmium toxicity in tall fescue photosystem II on the electron donor side".ENVIRONMENTAL AND EXPERIMENTAL BOTANY 137(2017):110-118.