Selenium reduces cadmium accumulation and alleviates cadmium-induced quality degradation in tobacco
A greenhouse pot experiment was conducted using two contrasting tobacco cultivars Guiyan1 (Cd-sensitive) and Yunyan2 (Cd-tolerant) to evaluate the effect of external selenium (Se) on Cd-induced degradation of tobacco quality. Results showed that 3 mg/kg Cd reduced K, Mg, Mn, and Zn contents, but increased Cd, P, Ca, Fe contents in both cultivars. Addition of Se in Cd solution (Cd + Se) dramatically alleviated Cd-deteriorate effects on tobacco quality, markedly reduced Cd concentration, but increased Se and K contents in tobacco leaves compared with Cd alone treatment. Exogenous Se counteracted Cd-induced alterations in carbohydrate, e.g. it significantly depressed Cd-induced increase in total/reducing sugar, and sucrose contents, but elevated the reduced starch content. Furthermore, Se significantly depressed the elevated ratios in reducing sugar/total nitrogen, total sugar/total protein and reducing sugar/nicotine, but elevated total nitrogen/nicotine, which returned near to their control levels.
Chen Fei, Wang Fang, Zhang Guoping, Wu Feibo (2008): Identification of Barley Varieties Tolerant to Cadmium Toxicity. Biological Trace Element Research, 121, 171-179 https://doi.org/10.1007/s12011-007-8042-2
DuBois Michel., Gilles K. A., Hamilton J. K., Rebers P. A., Smith Fred. (1956): Colorimetric Method for Determination of Sugars and Related Substances. Analytical Chemistry, 28, 350-356 https://doi.org/10.1021/ac60111a017
El-Demerdash Fatma M., Nasr Hoda M. (2014): Antioxidant effect of selenium on lipid peroxidation, hyperlipidemia and biochemical parameters in rats exposed to diazinon. Journal of Trace Elements in Medicine and Biology, 28, 89-93 https://doi.org/10.1016/j.jtemb.2013.10.001
Elson L. A., Betts T. E., Passey R. D. (1972): The sugar content and the ph of the smoke of cigarette, cigar and pipe tobaccos in relation to lung cancer. International Journal of Cancer, 9, 666-675 https://doi.org/10.1002/ijc.2910090325
Feng Renwei, Wei Chaoyang, Tu Shuxin (2013): The roles of selenium in protecting plants against abiotic stresses. Environmental and Experimental Botany, 87, 58-68 https://doi.org/10.1016/j.envexpbot.2012.09.002
Guo Hongyan, Zhu Jianguo, Zhou Hui, Sun Yuanyuan, Yin Ying, Pei Daping, Ji Rong, Wu Jichun, Wang Xiaorong (2011): Elevated CO 2
Levels Affects the Concentrations of Copper and Cadmium in Crops Grown in Soil Contaminated with Heavy Metals under Fully Open-Air Field Conditions. Environmental Science & Technology, 45, 6997-7003 https://doi.org/10.1021/es2001584
HEWITT B. R. (1958): Spectrophotometric Determination of Total Carbohydrate. Nature, 182, 246-247 https://doi.org/10.1038/182246b0
Li L., Kong H., He Y., Lai X.Z., Zhang J.R. (2003): Spectrophotometric method for determination of sucrose content in sugarcane juice. Journal of Instrumental Analysis, 22: 51–54.
Lin Li, Zhou Weihui, Dai Huaxin, Cao Fangbin, Zhang Guoping, Wu Feibo (2012): Selenium reduces cadmium uptake and mitigates cadmium toxicity in rice. Journal of Hazardous Materials, 235-236, 343-351 https://doi.org/10.1016/j.jhazmat.2012.08.012
Liu G.S. (2003): Tobacco Cultivation. Beijing, China Agriculture Press.
Liu Wenxing, Shang Shenghua, Feng Xue, Zhang Guoping, Wu Feibo (2015): Modulation of exogenous selenium in cadmium-induced changes in antioxidative metabolism, cadmium uptake, and photosynthetic performance in the 2 tobacco genotypes differing in cadmium tolerance. Environmental Toxicology and Chemistry, 34, 92-99 https://doi.org/10.1002/etc.2760
Mendell S., Bourlas E.C., DeBardeleben M.Z. (1984): Factors influencing tobacco leaf quality: An investigation of the literature. Beiträge zur Tabakforschung/Contributions to Tobacco Research, 12: 153–167.
Miller G. L. (1959): Use of Dinitrosalicylic Acid Reagent for Determination of Reducing Sugar. Analytical Chemistry, 31, 426-428 https://doi.org/10.1021/ac60147a030
Satarug Soisungwan, Baker Jason R, Urbenjapol Supanee, Haswell-Elkins Melissa, Reilly Paul E.B, Williams David J, Moore Michael R (2003): A global perspective on cadmium pollution and toxicity in non-occupationally exposed population. Toxicology Letters, 137, 65-83 https://doi.org/10.1016/S0378-4274(02)00381-8
Schutzendubel A., Schwanz P., Teichmann T., Gross K., Langenfeld-Heyser R., Godbold D. L., Polle A. (2001): Cadmium-Induced Changes in Antioxidative Systems, Hydrogen Peroxide Content, and Differentiation in Scots Pine Roots. PLANT PHYSIOLOGY, 127, 887-898 https://doi.org/10.1104/pp.010318
Solt M. L. (1957): Nicotine Production and Growth of Excised Tobacco Root Cultures.. PLANT PHYSIOLOGY, 32, 480-484 https://doi.org/10.1104/pp.32.5.480
Weybrew J.A., Wan Ismail W.A., Long R.C. (1983): The cultural management of flue-cured tobacco quality. Tobacco International, 185: 82–87.
Willers Stefan, Gerhardsson Lars, Lundh Thomas (2005): Environmental tobacco smoke (ETS) exposure in children with asthma—relation between lead and cadmium, and cotinine concentrations in urine. Respiratory Medicine, 99, 1521-1527 https://doi.org/10.1016/j.rmed.2005.03.017
Willits C. O., Swain M. L., Connelly J. A., Brice B. A. (1950): Spectrophotometric Determination of Nicotine. Analytical Chemistry, 22, 430-433 https://doi.org/10.1021/ac60039a013