Photosynthesis and growth responses of pea Pisum sativum L. under heavy metals stress

查看全文 作　　者：Sabrine [1]Hattab;Boutheina [1]Dridi;Lassad [2]Chouba;Mohamed Ben [3]Kheder;Hamadi [1]Bousetta

机构地区：[1]Laboratory of Biochemistry and Environmental Toxicology;[2]Laboratory of Marine Biology, National Institute of Sea Sciences and Technologies Lagoulette;[3]Technical Centre of Organic Agriculture

出　　处：《Journal of Environmental Sciences》索引2009年第21卷第11期,共5页

基　　金：supported by founds from the Tunisian Ministry of Higher Education, Scientific Research and Technology Research Unit 'Biochemistry and Ecotoxicology' 摘　　要：The present work aimed to study the physiological effects of cadmium (Cd) and copper (Cu) in pea (Pisum sativum). Pea plants were exposed to increasing doses of cadmium chloride (CdCl2) and copper chloride (CuCl2) for 20 d. The examined parameters, namely root and shoot lengths, the concentration of photosynthetic pigments and the rate of photosynthesis were affected by the treatments especially with high metals concentrations. The analysis of heavy metals accumulation shows that leaves significantly accumulate cadmium for all the tested concentrations. However, copper was significantly accumulated only with the highest tested dose. This may explain the higher inhibitory effects of cadmium on photosynthesis and growth in pea plants. These results are valuable for understanding the biological consequences of heavy metals contamination particularly in soils devoted to organic agriculture. 关键词：土壤重金属污染光合作用豌豆生长反应压力芫荽光合色素含量浓度测试

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Photosynthesis and growth responses of pea Pisum sativum L. under heavy metals stress

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