干旱区生态环境知识资源中心(Arid): 广西石漠化地区多重金属复合胁迫对玉米生长及生理特性影响

Arid

	广西石漠化地区多重金属复合胁迫对玉米生长及生理特性影响
其他题名	Effects of Multiple Heavy Metal Stress on Growth and Physiological Characteristics of Maize in Rocky Desertification Region in Guangxi
	张悠然 1; 李顺安 2; 熊林 1; 叶丽丽 1; 蒋金平 1
来源期刊	西南农业学报
ISSN	1001-4829
出版年	2016
卷号	29 期号:9 页码:2079-2085
中文摘要	为了解重金属复合污染对石漠化地区土壤玉米生长及生理特征的影响,采集广西阳朔县9个不同重金属污染程度农田土壤,进行玉米盆栽试验。结果表明,广西重金属复合污染土壤中,有效态重金属对玉米株高及生物量的积累起到低浓促进高浓抑制的作用。重金属复合污染显著影响玉米植物酶活性(P<0.05),低浓度的有效态重金属能够降低玉米丙二醛(Malondialdehyde, MDA)活性,高浓度有效态重金属促进玉米丙二醛活性。随有效态重金属浓度增加,超氧化物岐化酶(Superoxide dismutase,SOD)活性呈持续下降趋势,而过氧化物酶(Peroxidase,POD)活性则呈现低浓度下降高浓度上升的趋势。多元回归分析结果表明,Cd、As对玉米体内SOD、POD活性表现出协同作用。而土壤中有效态Hg对玉米体内SOD、POD活性均表现出抑制效应。
英文摘要	In order to evaluate the growth and physiological characteristics of maize plants under multiple heavy metal stress in rocky desertification soil, the pot experiment was conducted on 9 kinds of heavy metal contaminated soils from Yangshuo County in Guangxi. The results showed that low concentration of available heavy metal promoted the maize plant height and biomass of maize,while available heavy metal with high concentrations suppressed the growth and plant biomass of maize. Multiple heavy metal pollution could significantly affect the enzyme activity of maize plants( P <0. 05) . The results also showed that available heavy metal with low concentrations could decrease malondialdehyde ( MDA) activity, but it was the opposite trend for available heavy metal with high concentrations. Superoxide dismutase ( SOD) activity in maize indicated continuous decline trend with the concentrations of heavy metal increase,and peroxidase ( POD ) activity declined in low available heavy metal content, but increased in higher concentrations of heavy metal. Available cadmium and arsenic in rocky desertification soil showed a synergistic effect with the activity of POD and SOD in maize according to the results of multivariate regression analysis. Available mercury in soils could inhibit SOD and POD activity in maize.
中文关键词	石漠化 ; 玉米 ; 多金属 ; 土壤污染 ; 植物酶活性
英文关键词	Rocky desertification Maize Multiple heavy metal Soil pollution Plant enzyme activity
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRONOMY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5830323
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/235174
作者单位	1.桂林理工大学, 广西省环境污染控制理论与技术重点实验室;;广西岩溶地区水污染控制与用水安全保障协同创新中心, 桂林, 广西 541004, 中国; 2.桂林理工大学, 广西省环境污染控制理论与技术重点实验室, 桂林, 广西 541004, 中国
推荐引用方式 GB/T 7714	张悠然,李顺安,熊林,等. 广西石漠化地区多重金属复合胁迫对玉米生长及生理特性影响[J],2016,29(9):2079-2085.
APA	张悠然,李顺安,熊林,叶丽丽,&蒋金平.(2016).广西石漠化地区多重金属复合胁迫对玉米生长及生理特性影响.西南农业学报,29(9),2079-2085.
MLA	张悠然,et al."广西石漠化地区多重金属复合胁迫对玉米生长及生理特性影响".西南农业学报 29.9(2016):2079-2085.