Arsenic and selenium levels in rice fields from south-west of Spain: influence of the years of monoculture
Sara Rodrigo, Oscar Santamaria, Leticia Perez-Izquierdo, Maria J. Poblacioneshttps://doi.org/10.17221/105/2017-PSECitation:Rodrigo S., Santamaria O., Perez-Izquierdo L., J. Poblaciones M. (2017): Arsenic and selenium levels in rice fields from south-west of Spain: influence of the years of monoculture . Plant Soil Environ., 63: 184-188.
There is a lack of information regarding the arsenic (As) and selenium (Se) concentrations in Spanish rice (Oryza sativa L.) fields and how soil conditions affect such concentration, especially those derived from the typical monoculture practiced in the studied area. To clarify these aspects, 76 soil samples and 95 grain samples were collected from 19 rice fields along the Vegas Altas area, the most important rice growing area of south-west of Spain. The results suggested a significant increase in the soil total As and Se concentrations as the number of monoculture years increased. While As concentration reached toxic levels in 12 out of the 19 locations, Se concentration in all the analysed fields could be considered as deficient. An increase of the As and Se concentration in soil produced a subsequent increase of the concentration of both elements in the rice grain. Therefore, it might be extremely important to control both levels. It would be necessary to establish different actions, including rotations with other crops, in order to remediate As accumulation and to increase Se intake.Keywords:
paddy field; As-Se interaction; biofortification; crop rotation; soil contaminationReferences:
Bogdan Katja, Schenk Manfred K. (2008): Arsenic in Rice ( Oryza sativa L.) Related to Dynamics of Arsenic and Silicic Acid in Paddy Soils. Environmental Science & Technology, 42, 7885-7890 https://doi.org/10.1021/es801194qDíaz-Alarcón J.P., Navarro-Alarcón M., López-García de la Serrana H., López-Martínez M.C. (1996): Determination of selenium in cereals, legumes and dry fruits from southeastern Spain for calculation of daily dietary intake. Science of The Total Environment, 184, 183-189 https://doi.org/10.1016/0048-9697(96)05079-6Elmadfa I. (2009): The European Nutrition and Health Report. Forum of Nutrition. Vol 62. Vienna, 412.Feng Renwei, Wei Chaoyang, Tu Shuxin, Sun Xin (2009): Interactive effects of selenium and arsenic on their uptake by Pteris vittata L. under hydroponic conditions. Environmental and Experimental Botany, 65, 363-368 https://doi.org/10.1016/j.envexpbot.2008.11.013Hawkesford Malcolm J., Zhao Fang-Jie (2007): Strategies for increasing the selenium content of wheat. Journal of Cereal Science, 46, 282-292 https://doi.org/10.1016/j.jcs.2007.02.006IARC (International Agency Research Cancer) (2004): In Monographs on the Evaluation of Carcinogenic Risks to Humans. Vol. 84: Some Drinking-Water Disinfectants and Contaminants, Including Arsenic. Vienna, World Health Organization.Li Hua-Fen, Lombi Enzo, Stroud Jacqueline L., McGrath Steve P., Zhao Fang-Jie (2010): Selenium Speciation in Soil and Rice: Influence of Water Management and Se Fertilization. Journal of Agricultural and Food Chemistry, 58, 11837-11843 https://doi.org/10.1021/jf1026185MARM (2014): Statistical Yearbook 2014. Ministry of Environment, Rural and Marine. Available at http://www.mapama.gob.es/es/estadistica/temas/Matos-Reyes M.N., Cervera M.L., Campos R.C., de la Guardia M. (2010): Total content of As, Sb, Se, Te and Bi in Spanish vegetables, cereals and pulses and estimation of the contribution of these foods to the Mediterranean daily intake of trace elements. Food Chemistry, 122, 188-194 https://doi.org/10.1016/j.foodchem.2010.02.052Menjivar Flores J.C., Díez-Ortiz M., Aguilar-Ruiz J., Martín-Peinado F., García-Fernández I. (2009): Study of heavy metal and arsenic concentrations in olive farm soils, Sierra Mágina, Jaen, Spain. Acta Agronomy, 58: 303–307.Poblaciones Maria J, Rodrigo Sara, Santamaria Oscar, Chen Yi, McGrath Steve P (2014): Selenium accumulation and speciation in biofortified chickpea ( Cicer arietinum L.) under Mediterranean conditions. Journal of the Science of Food and Agriculture, 94, 1101-1106 https://doi.org/10.1002/jsfa.6372Rayman Margaret P (2012): Selenium and human health. The Lancet, 379, 1256-1268 https://doi.org/10.1016/S0140-6736(11)61452-9Reid Mary, Duffield-Lillico Anna, Slate Elizabeth, Natarajan Nachimuthu, Turnbull Bruce, Jacobs Elizabeth, Combs Gerald, Alberts David, Clark Larry, Marshall James (2008): The Nutritional Prevention of Cancer: 400 Mcg Per Day Selenium Treatment. Nutrition and Cancer, 60, 155-163 https://doi.org/10.1080/01635580701684856Sun Hong-Jie, Rathinasabapathi Bala, Wu Bing, Luo Jun, Pu Li-Ping, Ma Lena Q. (2014): Arsenic and selenium toxicity and their interactive effects in humans. Environment International, 69, 148-158 https://doi.org/10.1016/j.envint.2014.04.019Ventura Márcia Gonçalves, do Carmo Freitas Maria, Pacheco Adriano, Meerten Thea, Wolterbeek Hubert Theodore (2006): Selenium content in selected Portuguese foodstuffs. European Food Research and Technology, 224, 395-401 https://doi.org/10.1007/s00217-006-0426-6WHO (World Health Organization) (2010): Safety Evaluation of Certain Food Contaminants. Geneva, No. 63. Available at http://www.who.int/foodsafety/chem/summary72_rev.pdfXu X. Y., McGrath S. P., Meharg A. A., Zhao F. J. (2008): Growing Rice Aerobically Markedly Decreases Arsenic Accumulation. Environmental Science & Technology, 42, 5574-5579 https://doi.org/10.1021/es800324uZavala Yamily J., Duxbury John M. (2008): Arsenic in Rice: I. Estimating Normal Levels of Total Arsenic in Rice Grain. Environmental Science & Technology, 42, 3856-3860 https://doi.org/10.1021/es702747yZeng Huawei, Uthus Eric O., Combs Jr. Gerald F. (2005): Mechanistic aspects of the interaction between selenium and arsenic☆. Journal of Inorganic Biochemistry, 99, 1269-1274 https://doi.org/10.1016/j.jinorgbio.2005.03.006Zhao Fang-Jie, McGrath Steve P (2009): Biofortification and phytoremediation. Current Opinion in Plant Biology, 12, 373-380 https://doi.org/10.1016/j.pbi.2009.04.005