Effects of ozone pollution on yield and quality of winter wheat under flixweed competition

doi:10.1016/j.envexpbot.2015.11.011

	Effects of ozone pollution on yield and quality of winter wheat under flixweed competition
	Li, Caihong ; Meng, Jie 1; Guo, Liyue 1; Jiang, Gaoming
	2016
发表期刊	ENVIRONMENTAL AND EXPERIMENTAL BOTANY
ISSN	0098-8472
卷号	129 页码:77-84
摘要	The concentration of ozone (O-3) is believed to continually increase due to anthrogenic activity, which might affect severely the growth and grain quality of winter wheat (Triticum aestivum). Flixweed (Descurainia sophia) is one of the most troublesome annual dicot weeds in wheat fields. As a vigourous competitor, the presence of flixweed in wheat field is a major factor to reduce wheat production. However, few studies have investigated the effects of ozone on wheat growth and yield under competition with flixweed. In the present study, physiological and ecological responses of wheat to O-3 stress with different density of flixweed competition were reported. Chlorophyll concentration and leaf area were reduced by elevated O-3. Gas exchange of wheat was suppressed by both elevated O-3 and the presence of flixweed. Moreover, exposure of wheat to elevated O-3 induced accumulation of Proline due to the up-regulation of pyrroline-5-carboxylate synthetase at transcriptional level, suggesting that Proline may confer tolerance to oxidative stress induced by O-3 pollution. Finally, elevated O-3 had significant adverse impacts on wheat above-ground biomass, grain yield and harvest index, and these impacts were intensified by the presence of flixweed. Exposure of wheat to elevated O-3 led to a significant increase in crude protein concentration of grain, while decreases in mineral element concentrations of grain were observed. Our findings indicate that effects of ozone and flixweed competition on winter wheat should be considered for the future breeding and cultivation. (C) 2015 Elsevier B.V. All rights reserved.
关键词	Winter wheat Flixweed Ozone Species competition Yield Grain quality
学科领域	Plant Sciences ; Environmental Sciences
DOI	10.1016/j.envexpbot.2015.11.011
收录类别	SCI
语种	英语
WOS关键词	TRITICUM-AESTIVUM L. ; CARBON-DIOXIDE ; ELEVATED OZONE ; CLIMATE-CHANGE ; GRAIN QUALITY ; GROWTH ; RICE ; RESPONSES ; PROLINE ; CULTIVARS
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000379797400009
出版者	PERGAMON-ELSEVIER SCIENCE LTD
Special Issue	SI
文献子类	Article
出版地	OXFORD
EISSN	1873-7307
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31400335] ; Key Strategic Project of the Chinese Academy of Sciences [KSZD-EW-Z-012]
作者邮箱	jgm@ibcas.ac.cn
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/25154
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li, Caihong,Meng, Jie,Guo, Liyue,et al. Effects of ozone pollution on yield and quality of winter wheat under flixweed competition[J]. ENVIRONMENTAL AND EXPERIMENTAL BOTANY,2016,129:77-84.
APA	Li, Caihong,Meng, Jie,Guo, Liyue,&Jiang, Gaoming.(2016).Effects of ozone pollution on yield and quality of winter wheat under flixweed competition.ENVIRONMENTAL AND EXPERIMENTAL BOTANY,129,77-84.
MLA	Li, Caihong,et al."Effects of ozone pollution on yield and quality of winter wheat under flixweed competition".ENVIRONMENTAL AND EXPERIMENTAL BOTANY 129(2016):77-84.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
1-s2.0-S009884721530（471KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览请求全文