Physiological and Antioxidant Responses of Germinating Mung Bean Seedlings to Phthalate Esters in Soil

	Physiological and Antioxidant Responses of Germinating Mung Bean Seedlings to Phthalate Esters in Soil
	Ma Ting-Ting 1,2; Christie, P.3; Luo Yong-Ming1,4 ; Teng Ying 1,2
发表期刊	PEDOSPHERE
	2014-02-01
卷号	24 期号:1 页码:107-115
关键词	Glutathione Malondialdehyde Phytotoxicity Root Elongation Storage Compounds
英文摘要	Single phytotoxicity of two representative phthalate esters (PAEs), di-n-butyl phthalate (DnBP) and bis(2-ethylhexyl) phthalate (DEHP), was tested in mung bean ( Vigna radiata) seedlings germinated for 72 h in soils spiked with varying concentrations (0-500 mg kg(-1) soil) of DnBP or DEHP. PAEs added at up to 500 mg kg(-1) soil exerted no significant effect on germination but both pollutants significantly inhibited root elongation (P < 0.01), DEHP inhibited, shoot elongation (P < 0.01) and DnBP depressed biomass on a fresh weight basis (P < 0.05). Seedling shoot and root malondialdehyde (MDA) contents tended to be stimulated by DnBP but inhibited by DEHP. However, increases in superoxide dismutase, peroxidase, ascorbate peroxidase and polyphenol oxidase activities, as well as glutathione (GSH) content, were induced at higher concentrations (e.g., 20 mg kg(-1)) of both compounds. Accumulation of proline in both roots and shoots and the storage compounds, such as free amino acids and total soluble sugars, in whole plant was induced under the stress exerted by both PAEs. The general responses of mung bean seedlings indicated higher toxicity of DnBP than DEHP on primary growth, during which root elongation was a more responsive index. MDA and GSH were more sensitive parameters in the roots than in the shoots and they might be recommended as physiologically sensitive parameters to assess the toxicity of PAE compounds in soils in future long-term studies.
文章类型	Article
收录类别	SCI
语种	英语
关键词[WOS]	LEAF POLYPHENOL OXIDASE ; FREE AMINO-ACID ; ELSHOLTZIA-HAICHOWENSIS ; SUPEROXIDE-DISMUTASE ; LIPID-PEROXIDATION ; HYDROGEN-PEROXIDE ; PLANTS ; ACCUMULATION ; CADMIUM ; GROWTH
研究领域[WOS]	Agriculture
WOS记录号	WOS:000332437400010
引用统计	被引频次：23[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/9070
专题	中国科学院海岸带环境过程与生态修复重点实验室
作者单位	1.Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Agrifood & Biosci Inst, Agrienvironm Branch, Belfast BT9 5PX, Antrim, North Ireland 4.Chinese Acad Sci, Yantai Inst Costal Zone Res, Yantai 264003, Peoples R China
推荐引用方式 GB/T 7714	Ma Ting-Ting,Christie, P.,Luo Yong-Ming,et al. Physiological and Antioxidant Responses of Germinating Mung Bean Seedlings to Phthalate Esters in Soil[J]. PEDOSPHERE,2014,24(1):107-115.
APA	Ma Ting-Ting,Christie, P.,Luo Yong-Ming,&Teng Ying.(2014).Physiological and Antioxidant Responses of Germinating Mung Bean Seedlings to Phthalate Esters in Soil.PEDOSPHERE,24(1),107-115.
MLA	Ma Ting-Ting,et al."Physiological and Antioxidant Responses of Germinating Mung Bean Seedlings to Phthalate Esters in Soil".PEDOSPHERE 24.1(2014):107-115.