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	Ethylene glycol tetra-acetic acid and salicylic acid improve anti-oxidative ability of maize seedling leaves under heavy-metal and polyethylene glycol 6000-simulated drought stress
	Song, W. Y.1,2; Peng, S. P.3; Shao, C. Y.4; Shao, H. B.2,5; Yang, H. C.1; Shao, CY (reprint author), Shandong Agr Univ, Coll Life Sci, Tai An 271018, Shandong, Peoples R China. shaochuyang34@126.com; shaohongbochu@126.com
发表期刊	PLANT BIOSYSTEMS
ISSN	1126-3504
	2014-01-02
卷号	148期号:1页码:96-108
关键词	Heavy Metal Ions Maize Anti-oxidative Enzymes Ethylene Glycol Tetra-acetic Acid Salicylic Acid
DOI	10.1080/11263504.2013.878408
产权排序	[Song, W. Y.; Yang, H. C.] Shangqiu Normal Univ, Dept Life Sci, Shangqiu 476000, Peoples R China; [Song, W. Y.; Shao, H. B.] Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Biol & Biol Resources Utilizat, Yantai 264003, Peoples R China; [Peng, S. P.] Lanzhou Univ, Grad Sch, Lanzhou 730000, Peoples R China; [Shao, C. Y.] Shandong Agr Univ, Coll Life Sci, Tai An 271018, Shandong, Peoples R China; [Shao, H. B.] QUST, Inst Life Sci, Qingdao 266042, Peoples R China
作者部门	海岸带生物学与生物资源利用所重点实验室
英文摘要	Stress caused by divalent heavy metal ions and drought exert many toxic and adverse effects on seedling growth and development of plants, especially on leave growth. Organic acids such as ethylene glycol tetra-acetic acid (EGTA) and salicylic acid (SA) have been shown to alleviate the unfavorable effects exerted by these stresses on seedling growth and metabolism. In order to reveal the physiological mechanism underlying these toxic effects and the alleviated effects exerted by organic acids, maize seedling leaves (genotype Zhengdan958) were exposed for 7 days to different concentrations of cadmium (Cd2+), mercury (Hg2+), and lead (Pb2+) ions and to the drought stress-inducing polymer polyethylene glycol (PEG) 6000. The same experiments were also carried out in the presence of EGTA or SA. Treated leaves were analyzed for activities of the anti-oxidative enzymes catalase (CAT), peroxidase (POD), and superoxide dismutase (SOD) and for the content of malondialdehyde (MDA). The results showed that stress treatments with the heavy metals Cd2+, Hg2+, and Pb2+ and with PEG all affected the activities of CAT, POD, and SOD, although the extent and patterns of these changes were different under different stress conditions. Both heavy metal and drought stress caused a concentration-dependent increase in MDA content. Treatments in the presence with EGTA or SA showed that both these compounds exerted certain alleviative effects on seedling growth under Cd2+, Hg2+, and Pb2+ stresses and PEG-simulated drought stress, with SA generally showing better effects than EGTA.; Stress caused by divalent heavy metal ions and drought exert many toxic and adverse effects on seedling growth and development of plants, especially on leave growth. Organic acids such as ethylene glycol tetra-acetic acid (EGTA) and salicylic acid (SA) have been shown to alleviate the unfavorable effects exerted by these stresses on seedling growth and metabolism. In order to reveal the physiological mechanism underlying these toxic effects and the alleviated effects exerted by organic acids, maize seedling leaves (genotype Zhengdan958) were exposed for 7 days to different concentrations of cadmium (Cd2+), mercury (Hg2+), and lead (Pb2+) ions and to the drought stress-inducing polymer polyethylene glycol (PEG) 6000. The same experiments were also carried out in the presence of EGTA or SA. Treated leaves were analyzed for activities of the anti-oxidative enzymes catalase (CAT), peroxidase (POD), and superoxide dismutase (SOD) and for the content of malondialdehyde (MDA). The results showed that stress treatments with the heavy metals Cd2+, Hg2+, and Pb2+ and with PEG all affected the activities of CAT, POD, and SOD, although the extent and patterns of these changes were different under different stress conditions. Both heavy metal and drought stress caused a concentration-dependent increase in MDA content. Treatments in the presence with EGTA or SA showed that both these compounds exerted certain alleviative effects on seedling growth under Cd2+, Hg2+, and Pb2+ stresses and PEG-simulated drought stress, with SA generally showing better effects than EGTA.
文章类型	Article
资助机构	Plant Sciences
收录类别	SCI
语种	英语
关键词[WOS]	SPECIES-DIVERSITY ; PROTECTIVE ROLE ; L. ; GROWTH ; IRRIGATION ; WETLAND ; CHINA ; ACCUMULATION ; GERMINATION ; RESPONSES
研究领域[WOS]	Plant Sciences
WOS记录号	WOS:000333880000015
引用统计	被引频次：14[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/133337/8560
专题	海岸带生物学与生物资源利用重点实验室_海岸带生物学与生物资源保护实验室
通讯作者	Shao, CY (reprint author), Shandong Agr Univ, Coll Life Sci, Tai An 271018, Shandong, Peoples R China. shaochuyang34@126.com; shaohongbochu@126.com
作者单位	1.Shangqiu Normal Univ, Dept Life Sci, Shangqiu 476000, Peoples R China 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Biol & Biol Resources Utilizat, Yantai 264003, Peoples R China 3.Lanzhou Univ, Grad Sch, Lanzhou 730000, Peoples R China 4.Shandong Agr Univ, Coll Life Sci, Tai An 271018, Shandong, Peoples R China 5.QUST, Inst Life Sci, Qingdao 266042, Peoples R China
推荐引用方式 GB/T 7714	Song, W. Y.,Peng, S. P.,Shao, C. Y.,et al. Ethylene glycol tetra-acetic acid and salicylic acid improve anti-oxidative ability of maize seedling leaves under heavy-metal and polyethylene glycol 6000-simulated drought stress[J]. PLANT BIOSYSTEMS,2014,148(1):96-108.
APA	Song, W. Y..,Peng, S. P..,Shao, C. Y..,Shao, H. B..,Yang, H. C..,...&shaohongbochu@126.com.(2014).Ethylene glycol tetra-acetic acid and salicylic acid improve anti-oxidative ability of maize seedling leaves under heavy-metal and polyethylene glycol 6000-simulated drought stress.PLANT BIOSYSTEMS,148(1),96-108.
MLA	Song, W. Y.,et al."Ethylene glycol tetra-acetic acid and salicylic acid improve anti-oxidative ability of maize seedling leaves under heavy-metal and polyethylene glycol 6000-simulated drought stress".PLANT BIOSYSTEMS 148.1(2014):96-108.

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