Antioxidant responses and gene expression in perennial ryegrass (Lolium perenne L.) under cadmium stress

被引：0
作者：
Hongji Luo
Huiying Li
Xunzhong Zhang
Jinmin Fu
机构：
[1] The Chinese Academy of Science,Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden
[2] Virginia Polytechnic Institute and State University,undefined
来源：
Ecotoxicology | 2011年 / 20卷
关键词：
Perennial ryegrass; Cadmium; Gene expression; Antioxidant enzymes;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Perennial ryegrass (Lolium perenne L.), widely used in temperate climates, is one of turf grasses that enrich cadmium (Cd). The objective of this study was to explore the physiological responses and candidate gene expression in perennial ryegrass to Cd stress. Grasses were subjected to three levels of 0, 0.2, and 0.5 mM Cd for 7 days in the greenhouse. The results indicated that soluble protein content was lower in the Cd-treated perennial ryegrass compared to untreated plants. The Cd-treated perennial ryegrass exhibited a greater level of malondialdehyde and activity of the peroxidase (POD), catalase, and superoxide dismutase (SOD) relative to the control. The Cd stress induced up-regulated expression of FeSOD, MnSOD, Chl Cu/ZnSOD, Cyt Cu/ZnSOD, APX, GPX, GR and POD at 4–24 h after treatment began for perennial ryegrass. Results suggested that the gene transcript profile was related to the enzyme activity under Cd stress.
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页码：770 / 778
页数：8
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