PCDD/Fs-induced oxidative damage and antioxidant system responses in tobacco cell suspension cultures

Chemosphere
Baoqin ZhangJiping Chen

Abstract

Polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) are ubiquitous contaminants and can be considerably accumulated by natural plants. In order to elucidate the biochemical and physiological responses of plant to PCDD/Fs, tobacco Bright Yellow-2 (BY-2) cells were selected as model plant and treated with time- and concentration-dependent PCDD/Fs. The toxic effect and oxidative stress caused by PCDD/Fs were evident, which could be indicted by the reduction in fresh mass, the increase in malondialdehyde (MDA) content, and the damage of tobacco cell ultrastructure. PCDD/Fs tolerance was correlated with changes in antioxidant system and hormones of tobacco cells. Superoxide dismutase (SOD) and peroxidase (POD) exhibited peak enzyme activities at the PCDD/Fs concentration of 1000ng WHO(98)-TEQg(-1)fresh weight. Glutathione reductase (GR) enzyme activity increased monotonically at high level PCDD/Fs, but the activity of catalase (CAT) was only slightly affected at all treatment. Meanwhile, the exposure to PCDD/Fs resulted in the changes of hormones content. With the increase of exposure concentration of PCDD/Fs, the levels of indole-3-acetic acid (IAA) and abscisic acid (ABA) increased, whereas the concentrat...Continue Reading

References

Nov 1, 1971·Analytical Biochemistry·C Beauchamp, I Fridovich
Oct 15, 1983·Archives of Biochemistry and Biophysics·M A Takahashi, K Asada
Sep 15, 1998·Free Radical Research·K Moore, L J Roberts
Sep 6, 2002·Chemico-biological Interactions·Timothy P DaltonHoward G Shertzer
Jul 23, 2003·Proceedings of the National Academy of Sciences of the United States of America·Eric A SchmelzJames H Tumlinson
Dec 15, 2005·Journal of Biotechnology·Sudhir SinghS F D'Souza
Jun 10, 2006·Chemosphere·Rui A Gomes-JuniorRicardo A Azevedo
Jun 30, 2006·Plant Biology·A ChristmannE Grill
Nov 7, 2006·The Science of the Total Environment·Hsiu-Ling ChenMiao-Lin Hu
May 8, 2007·Journal of Hazardous Materials·Jin-Juh JouMing Kuang Wang
May 31, 2008·Comptes rendus biologies·Hong-bo ShaoHong-mei Mi
Jun 5, 2008·Journal of Agricultural and Food Chemistry·Xiao Le YinHong Yang
Jul 4, 2008·Journal of Environmental Sciences (China)·Cailin GeShishi Luo
Dec 17, 2008·Plant Molecular Biology·Rajendra Bari, Jonathan D G Jones
Jan 8, 2009·Environmental Toxicology and Chemistry·Yan SongXiao-Li Dong
May 15, 2009·Environmental Science and Pollution Research International·Lyudmila LyubenovaPeter Schröder
May 29, 2009·Ecotoxicology and Environmental Safety·Lei Jiang, Hong Yang

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