期刊
JOURNAL OF PLANT PHYSIOLOGY
卷 162, 期 11, 页码 1220-1225出版社
ELSEVIER GMBH
DOI: 10.1016/j.jplph.2004.12.006
关键词
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To study the role of Cd-induced phytochelatins in UV-B tolerance, lipid peroxidation, antioxidative enzymes (superoxide dismutase, catalase, ascorbate peroxidase and glutathione reductase), glutathione and phytochelatin contents were measured in buthionine sulphoximine treated and untreated cells of Anabaena doliolum. Cd-pretreatment of the cyanobacterium reduced the lipid peroxidation as wet[ as the antioxidative enzymes in comparison to UV-B treatment alone, whereas the phytochelatin content demonstrated an increase. In contrast to this, buthionine sulphoximine-induced inhibition of phytochelatin synthase, dramatically decreased the Cd-induced co-tolerance against UV-B, hence demonstrating that phytochelatin not only protects the cyanobacterium from heavy metal but participates in UV-B tolerance as welt. (C) 2005 Elsevier GmbH. All rights reserved.
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