Cadmium accumulation and tolerance of two safflower cultivars in relation to photosynthesis and antioxidative enzymes

Bulletin of Environmental Contamination and Toxicology
Gangrong ShiCuiping Hou

Abstract

To investigate the effects of cadmium (Cd) on photosynthetic and antioxidant activities of safflower (Carthamus tinctorius L.) plants, two cultivars (Yuming and New safflower No. 4) were used for long-term pot experiment, under 0, 25, 50 or 100 mg Cd kg(-1) (DW) soil conditions. The results showed that there is a large amount of Cd (148.6-277.2 mg kg(-1)) accumulated in the shoot of safflower, indicating this species might be a potential Cd accumulator. Exposure to 25-100 mg Cd kg(-1) soil decreased the net photosynthetic rate by 25.6%-48.9% for New safflower No. 4, and 16.7%-57.3% for Yuming, respectively. The inhibition of photosynthesis might result from the limitation of stomatal conductance, reduction in photosynthetic pigment, and destruction of photosynthetic apparatus caused by Cd stress. Cd caused an enhancement of malondialdehyde (MDA), an increase in activity of superoxide dismutase (SOD) and ascorbate peroxidase (APX), and a decrease in catalase (CAT) activity for both cultivars. It seems that SOD and APX accounted for the scavenging of oxidant stress in safflower cultivars. The physiological response of safflower plants to Cd stress was cultivar- and dose-dependent. New safflower No. 4 exhibited high photosynthetic...Continue Reading

References

Nov 1, 1971·Analytical Biochemistry·C Beauchamp, I Fridovich
Jan 1, 1984·Methods in Enzymology·H Aebi
Apr 26, 2000·Proceedings of the National Academy of Sciences of the United States of America·N S PenceL V Kochian
Apr 23, 2003·Ecotoxicology and Environmental Safety·Nirupama Mallick, F H Mohn
May 28, 2003·Biotechnology and Bioengineering·Rengasamy Boominathan, Pauline M Doran
Apr 20, 2004·Environmental Pollution·S MonniN Millar
Oct 30, 2004·Biochimica Et Biophysica Acta·Kajsa G V SigfridssonStenbjörn Styring
Dec 3, 2005·Journal of Plant Physiology·Poonam BhargavaLal Chand Rai
Sep 9, 2006·Journal of Trace Elements in Medicine and Biology : Organ of the Society for Minerals and Trace Elements (GMS)·Melis TiryakiogluIsmail Cakmak
Aug 31, 2007·Journal of Plant Physiology·Yasemin EkmekçiBeycan Ayhan
Oct 5, 2007·Journal of Plant Physiology·Alexander KrantevLosanka Popova

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Citations

Jun 7, 2012·Environmental Science and Pollution Research International·Jiali HeZhi-Bin Luo
Sep 23, 2011·Applied Biochemistry and Biotechnology·Gangrong ShiQingsheng Cai
May 21, 2013·Ecotoxicology and Environmental Safety·Ramadan A Agami, Gamal F Mohamed
Oct 8, 2014·Journal of Environmental Sciences (China)·Hanzhi ZhangYingxin Wan
Feb 11, 2015·Environmental Science and Pollution Research International·Hui TangXiaoxia Zeng
Jul 8, 2017·Journal of Agricultural and Food Chemistry·Marzia VergineLuigi De Bellis
Aug 2, 2017·International Journal of Environmental Research and Public Health·Zhenglan TaiQingsheng Cai
Jan 31, 2018·Environmental Science and Pollution Research International·Morena MarzilliClaudia Cocozza
Aug 30, 2018·International Journal of Phytoremediation·Jie LiuYixuan Wang
Sep 3, 2016·Environmental Science and Pollution Research International·Gangrong ShiZheng Zhang
Nov 19, 2019·Physiology and Molecular Biology of Plants : an International Journal of Functional Plant Biology·Magdalena SozoniukKrzysztof Kowalczyk
Apr 8, 2017·Environmental Science and Pollution Research International·Parminder KaurRenu Bhardwaj
Aug 15, 2018·Environmental Science and Pollution Research International·Wenling YeYouhua Ma
Jan 28, 2021·International Journal of Phytoremediation·Meifang JinMaozi Lin

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