Global Advances in Selenium Research from Theory to Application: Proceedings of the 4th International Conference on Selenium in the Environment and Human Health 2015

The 4th International Conference on Selenium in the Environment and Human Health was held 18-21 October 2015 in São Paulo, Brazil. This conference provided an effective scientific communication platform for researchers in different disciplines worldwide to elucidate and better understand those complex roles of Se as both essential nutrient and environmental contaminant. This proceedings volume includes 98 peer-reviewed extended abstracts prepared by Se researchers from 28 countries. These most recent Se research studies address inter-relationships between the geological and atmospheric environment, agricultural food and selenium-biofortified food crops, human and animal health impacts, and genetic, biochemical, and cell and molecular activities. This book presents a unique myriad of Se research to further our international understanding of the role of Se in the context of biochemistry, food chain transfer, and health-related issues.

Table of Contents:
Biogeochemistry of selenium The global biogeochemical cycle of selenium: Sources, fluxes and the influence of climate L.H.E. Winkel Topsoil selenium distribution in relation to geochemical factors in main agricultural areas of China T. Yu, Z.F. Yang, Q.Y. Hou, Y.Y. Lv, X.X. Xi & M. Li Examining continental and marine sources of selenium in rainfall T. Blazina, L.H.E.Winkel, A. Läderach, H.Wernli & J. Kirchner The role of phytoplankton in marine selenium cycling K.E. Luxem, B. Vriens, R. Behra & L.H.E.Winkel Biogenic volatilization of nanoscale selenium particles in the soil-Stanleya pinnata system J.Wang, R. Mahajan, L. Jones, Z.-Q. Lin &Y.H. Xie Global predictions of selenium distributions in soils G.D. Jones & L.H.E.Winkel Selenium in agroecosystems in tropical areas: A focus in Brazil L.R.G. Guilherme, G.S. Carvalho, E.C. Silva Júnior, L.B. Abreu, G.A. Souza & J.J. Marques Selenium soil mapping under native Brazil nut forests in Brazilian Amazon K.D. Batista, K.E. da Silva, G.C. Martins, L.H.O.Wadt, L.M. da Silva, N.J.M. Júnior, M.C. Guedes, R.C. de Oliveira Júnior, C.A.S. Magalhães &A.B.B. Tardini Fate of selenium in soil and engineered suboxic and anoxic environments L. Charlet, B. Ma, A. Fernandez Martinez, R.M. Couture, M.R. Broadley &A.D.C. Chilimba Soil selenium contents, spatial distribution and their influencing factors in Heilongjiang, China Feng-qin Chi, En-jun Kuang, Jiu-ming Zhang, Qing-rui Su, DanWei & Qiang Xu Selenium sorption in tropical agroecosystems G. Lopes, L.R.G. Guilherme, A.M. Araujo & J.H.L. Lessa Ionic strength effects upon selenate adsorption in cultivated and uncultivated Brazilian soils A.M. Araujo, J.H.L. Lessa, G.A. Souza, L.R.G. Guilherme & G. Lopes Soil cultivation affects selenate adsorption in Cerrado soils in Brazil J.H.L. Lessa, A.M. Araujo, L.R.G. Guilherme & G. Lopes The effect of calcination on selenium speciation in selenium-rich rock H.Y. Zhang, M. Lui, Y. Xiao, Z.Y. Bao, C.H.Wei & X.L. Chen The fraction of selenium in cumulated irrigated soil in Gansu Province, China: Effect of aging J. Li, S.Y. Qin, P.Y. Feng, N. Man & D.L. Liang Comparative study on the extraction methods and the bioavailability of soil available selenium Z.Wang, S. Tu & D. Han Partitioning of SeNPs in the water soluble and the exchangeable fractions and effects of soil organic matter and incubation time M.M. Rashid, Z.-Q. Lin & F. Kaniz A rapid analytical method for selenium species by high performance liquid chromatography (HPLC) coupled with inductively coupled plasma mass spectrometry (ICP-MS) H. Tian, Z.Y. Bao, X.L. Chen, C.H.Wei & Z.Y. Tang Determination of selenium species in Se-enriched food supplement tablets by anion-exchange liquid chromatography-hydride generation-atomic fluorescence spectrometry N. Zhang, L. Liu,W. Ren & S. Chen Selenium speciation in plants by HPLC-ultraviolet treatment-hydride generation atomic fluorescence spectrometry using various mobile phases D. Han, S. Xiong, S. Tu, Z. Xie, H. Li, M. Imtiaz, J. Zhou & D. Xing Synchrotron studies of selenium interactions with heavy elements I.J. Pickering, G.N. George, T.C. MacDonald, P.H. Krone & M. Korbas Cellular and molecular functions of selenium Selenium atom-specific modifications (SAM) of nucleic acids for human health R. Abdur,W. Zhang, H. Sun & Z. Huang Comparative cytotoxicity and antioxidant evaluation of biologically active fatty acid conjugates of water soluble selenolanes in cells A. Kunwar, P. Verma, K.I. Priyadarsini, K. Arai & M. Iwaoka Diselenodipropionic acid as novel selenium compound for lung radiotherapy K.I. Priyadarsini, A. Kunwar, V.K. Jain, V. Gota & J. Goda Association of selenoprotein and selenium pathway genetic variations with colorectal cancer risk and interaction with selenium status D.J. Hughes, V. Fedirko, J.S. Jones, L. Schomburg, S. Hybsier, C. Méplan, J.E. Hesketh, E. Riboli & M. Jenab Selenoenzymes iodothyronine deiodinases: 1. Effects of their activities in various rat tissues byadministered antidepressant drug Fluoxetine S. Pavelka Selenoenzymes iodothyronine deiodinases: 2. Novel radiometric enzyme assays for extremely sensitive determination of their activities S. Pavelka The role of thioredoxin reductase 1 in cancer E.S.J. Arnér Selenoprotein T: A new promising target for the treatment of myocardial infarction and heart failure I. Boukhalfa, N. Harouki, L. Nicol, A. Dumesnil, I. Rémy-Jouet, J.-P. Henry, C. Thuillez, A. Ouvrard-Pascaud, V. Richard, P. Mulder &Y. Anouar Selenium status in humans: Measures, methods, and modifiers L. Schomburg Selenoneine is the major Se compound in the blood of Inuit consuming of traditional marine foods in Nunavik, Northern Canada M. Lemire, A. Achouba, P.Y. Dumas, N. Ouellet, P. Ayotte, M. Martinez, L. Chan, B. Laird & M. Kwan Selenium as a regulator of immune and inflammatory responses P.R. Hoffmann Effects of selenium exposure on neuronal differentiation of embryonic and induced pluripotent stem cells M. Li & Z. Qiu Functional deletion of brain selenoenzymes by methylmercury N.V.C. Ralston & L.J. Raymond The "SOS" mechanisms of methylmercury toxicity N.V.C. Ralston & L.J. Raymond Effects of selenium on animal, human and plant health Role of the selenium in articular cartilage metabolism, growth, and maturation C. Bissardon, L. Charlet, S. Bohic & I. Khan Intestinal bioaccessibility and bioavailability of selenium in elemental selenium nano-/microparticles G. Du Laing, R.V.S. Lavu, B. Hosseinkhani, V.L. Pratti, F.M.G. Tack &T. Van deWiele Autoimmunity against selenium transport in human sera W.B. Minich, A. Schuette, C. Schwiebert, T.Welsink, K. Renko & L. Schomburg Natural small molecules in protection of environment and health: Sulfur-selenium deficiency and risk factor for man, animal and environment R.C. Gupta Incubation and crude protein separation from selenium-enriched earthworms Y. Qiao, X. Sun, S. Yue, Z. Sun & S. Li Health impact of dietary selenium nanoparticles on mahseer fish K.U. Khan, A. Zuberi, Z. Jamil, H. Sarwar, S. Nazir & J.B.K. Fernandes Pathways of human selenium exposure and poisoning in Enshi, China J.-M. Zhu, H.-B. Qin, Z.-Q. Lin, T.M. Johnson & B.-S. Zheng Selenium status in Iran: A soil and human health point of view B. Atarodi &A. Fotovat Impact of high selenium exposure on organ function & biochemical profile of the rural population living in seleniferous soils in Punjab, India R. Chawla, R. Loomba, R.J. Chaudhary, S. Singh & K.S. Dhillon Keshan disease and Kaschin-Beck disease in China: Is there still selenium deficiency? D.Wang, Y. Liu & D. Liu Influence of canola oil, vitamin E and selenium on cattle meat quality and its effects on nutrition and health of humans M.A. Zanetti, L.B. Correa, A. Saran Netto, J.A. Cunha, R.S.S. Santana & S.M.F. Cozzolino Selenium content of food and estimation of dietary intake in Xi’an, China Z.W. Cui, R.Wang, J. Huang, D.L. Liang & Z.H.Wang Assessment of selenium intake, status and influencing factors in Kenya P. Biu Ngigi, G. Du Laing, C. Lachat & P.Wafula Masinde Selenium improves the biocontrol activity of Cryptococcus laurentii against Penicillium expansum in tomato fruit J.Wu, Z.Wu, M. Li, G.S. Bañuelos & Z.-Q. Lin Antifungal activity of selenium on two plant pathogens Sclerotinia sclerotiorum and Colletotrichum gloeosporioides Y. Zhang, H. Jiang, H. Zang, G. Tan, M. Li, L. Yuan & X. Yin Exogenous selenium application influences lettuce on bolting and tipburn X.X. Wang, Y.Y. Han & S.X. Fan Biological uptake and accumulation of selenium The genetics of selenium accumulation by plants P.J. White The genetic loci associated with selenium accumulation in wheat grains under soil surface drenching and foliar spray fertilization methods T. Li, A.Wang, G. Bai, L. Yuan & X. Yin Molecular mechanisms of selenium hyperaccumulation in Stanleya pinnata: Potential key genes SpSultr1;2 and SpAPS2 M. Pilon, A.F. El Mehdawi, J.J. Cappa, J.Wang & E.A.H. Pilon-Smits Effect of soil pH on accumulation of native selenium by Maize (Zea mays var. L) grains grown in Uasin Gishu, Trans-Nzoia Kakamega and Kisii counties in Kenya S.B. Otieno, T.S. Jayne & M. Muyanga Quantification, speciation and bioaccessibility of selenium from Se-rich cereals cultivated in seleniferous soils of India N. Tejo Prakash Wautersiella enshiensis sp. nov. – selenite-reducing bacterium isolated from a selenium-mining area in Enshi, China Z. Qu, L. Yuan, X. Yin & F. Peng Selenium in Osborne fractions of Se-rich cereals and its bioaccessibility N.I. Dhanjal, S. Sharma & N. Tejo Prakash New insights into the multifaceted ecological and evolutionary aspects of plant selenium hyperaccumulation E.A.H. Pilon-Smits, A.F. El Mehdawi, J.J. Cappa, J.Wang, A.T. Cochran, R.J.B. Reynolds & M. Sura-de Jong Comparative effects of selenite and selenate on growth and selenium uptake in hydroponically grown pakchoi (Brassica chinensis L.) Q. Peng, Z. Li & D.L. Liang Does selenium hyperaccumulation affect the plant microbiome? A.T. Cochran, J. Bauer, R.J.B. Reynolds, E.A.H. Pilon-Smits, M. Sura-de Jong, K. Richterova & L. Musilova Effects of sulfur and selenium interaction on pakchoi growth and selenium accumulation S.Y. Qin,W.L. Zhao, Z. Li & D.L. Liang Are all Brazil nuts selenium-rich? E.C. da Silva Júnior, L.R.G. Guilherme, G. Lopes, G.A. de Souza, K.E. da Silva, R.M.B. de Lima, M.C. Guedes, L.H.O.Wadt &A.R. dos Reis Accumulation of mercury and selenium by Oryza sativa from the vicinity of secondary copper smelters in Fuyang, Zhejiang, China X. Yin, J. Song, Z. Li,W. Qian, C. Yao, Y. Luo & L. Yuan Selenium and mycorrhiza on grass yield and selenium content S.M. Bamberg, M.A.C. Carneiro, S.J. Ramos & J.O. Siqueira High selenium content reduces cadmium uptake in Cardamine hupingshanesis (Brassicaceae) Z.Y. Bao, H. Tian, Y.H. You & C.H.Wei Selenium accumulation and its effects on heavy metal elements in garlic A.Q. Gu, Y.Y. Luo, H. Tian, Z.Y. Bao, C.H.Wei & X.L. Chen Effect of selenium on cadmium uptake and translocation by rice seedlings Y.N.Wan, S.L. Yuan, Z. Luo & H.F. Li Selenium biofortification Environmental pathways and dietary intake of selenium in a selenium rich rural community in China: A natural biofortification case study G.S. Bañuelos, J. Tang, Y. Hou, X. Yin & L. Yuan Effects of agronomic biofortification of maize and legumes with selenium on selenium concentration and selenium recovery in two cropping systems in Malawi A.D.C. Chilimba, S.D. Young & E.M. Joy Potential roles of underutilized crops/trees in selenium nutrition in Malawi D.B. Kumssa, E.J.M. Joy, S.D. Young, M.R. Broadley, E.L. Ander, M.J.Watts & S.Walker Necessity of biofortification with selenium of plants used as fodder and food in Romania R. Lacatusu, A.-R. Lacatusu, M.M. Stanciu-Burileanu & M. Lungu The selenium content of organically produced foods in Finland P. Ekholm, G. Alfthan & M. Eurola Effects of soil selenium ore powder application on rice growth and selenium accumulation W. He, B. Du, Y. Luo, H. Chen, H. Liu, S. Xiao, D. Xing & J. Xu Agronomic biofortification of Brachiaria with selenium along with urea L.A. Faria, M.C. Machado, A.L. Abdalla, P.P. Righeto, L.L. Campos, F.H.S. Karp & M.Y. Kamogawa Effects of different foliar selenium-enriched fertilizers on selenium accumulation in rice (Oryza sativa) Q.Wang, X.F.Wang, J.X. Li, Y.B. Guo & H.F. Li Using agronomic biofortification to reduce micronutrient deficiency in food crops on loess soil in China H. Mao, G.H. Lyons & Z.H.Wang Effect of selenium treatment on biomass production and mineral content in common bean varieties M.A. de Figueiredo, D.P. Oliveira, M.J.B. de Andrade, L.R.G. Guilherme & L. Li Biofortification of irrigated wheat with Se fertilizer: Timing, rate, method and type of wheat I. Ortiz-Monasterio, M.E. Cárdenas & G.H. Lyons Egg and poultry meat enrichment of selenium A.G. Bertechini, V.A. Silva, F.M. Figueiredo &T.F.B. Oliveira Strategies for selenium supplementation in cattle: Se-yeast or agronomic biofortification J.A. Hall & G. Bobe Selenoneine content of traditional marine foods consumed by the Inuit in Nunavik, Northern Canada P. Ayotte, A. Achouba, P. Dumas, N. Ouellet, M. Lemire, L. Gautrin, L. Chan, B. Laird & M. Kwan Genotypic variation and agronomic biofortication of upland rice with selenium H.P.G. Reis, J.P.Q. Barcelos, A.R. dos Reis & M.F. Moraes Effect of selenium fertilization on nitrogen assimilation enzymes in rice plants J.P.Q. Barcelos, H.P.G. Reis, A.R. dos Reis & M.F. Moraes Selenium status in Brazilian soils and crops: Agronomic biofortification as a strategy to improve food quality A.R. dos Reis Effects of selenium-enrichment on fruit ripening and senescence in mulberry trees J.Wu, Z.Wu, M. Li, Y. Deng, G.S. Bañuelos & Z.-Q. Lin Wheat biofortification: Genotypic variation and selenium fertilization in Brazil C.R.S. Domingues, J.A.L. Pascoalino, M.F. Moraes, C.L.R. Santos, A.R. dos Reis, F.A. Franco, A. Evangelista & P.L. Scheeren Improving selenium nutritional value of major crops L. Li, F.W. Avila, G.A. Souza, P.F. Boldrin, M.A. de Figueiredo, V. Faquin, M.J.B. Andrade, L.R.G. Guilherme & S.J. Ramos The changing selenium content in vegetables and nutritional status of Chinese residents W. Shi, S. Li, J. Min, L.Wu & G.S. Bañuelos Selenium and nano-selenium biofortified sprouts using micro-farm systems H. El-Ramady, T. Alshaal, N. Abdalla, J. Prokisch, A. Sztrik, M. Fári & É. Domokos-Szabolcsy The standardization of selenium biofortification in China X.Yin & F. Li The chemical form of selenium in dietary supplements G.N. George, S.I. Yang & I.J. Pickering Selenium pollution control Phytoremediation of selenium-contaminated soil and water N. Terry Microbe-assisted selenium phytoremediation and phytomanagement of natural seleniferous areas M. Yasin, M. Faisal, M. Yasin, A.F. El Mehdawi & E.A.H. Pilon-Smits Phytoremediation of selenium contaminated soils: strategies and limitations K.S. Dhillon & S.K. Dhillon Enhanced selenium removal and lipid production from wastewater by microalgae with low-energy ion implantation Z.Wu, M. Li, M. Zhu & L. Qiu Simultaneous production of biofuels and treatment of Se-laden wastewater using duckweed Z.Wu, M. Li, L. Qiu & M. Zhu