Abstract
Main conclusion
Iron plaque on root surfaces greatly influenced selenium uptake and played different roles in selenite and selenate uptake.
Iron plaque commonly forms on rice root surfaces under flooded conditions, but little is known about the relationship between iron plaque and selenium (Se) accumulation. Here, we investigate the effects of iron plaque on Se uptake by and translocation within rice (Oryza sativa) seedlings, and the kinetics of selenite and selenate influx into rice roots (with or without iron plaque) were determined in short-term (30 min) experiments. Rice seedlings were planted in nutrient solutions containing different levels of ferrous ion for 3 days and then transplanted into nutrient solutions with selenite or selenate. Se concentrations in iron plaque were positively associated with the amounts of iron plaque in both selenite and selenate treatments and iron plaque had a higher affinity for selenite than selenate. Results showed that iron plaque on root surfaces greatly influenced Se uptake and played different roles in selenite and selenate uptake. The selenite and selenate uptake kinetics results demonstrated that the presence of iron plaque enhanced selenite uptake, but decreased selenate uptake. In addition, root-Se concentrations increased with the increasing amounts of iron plaque, but Se translocation from roots to shoots was reduced with the increasing amounts of iron plaque in the +selenite treatment. Iron plaque significantly influenced selenite uptake and might act as a pool to selenite accumulation in rice plants. However, iron plaque had no significant effect on selenate uptake or even as a barrier to selenate uptake.
Similar content being viewed by others
Abbreviations
- DCB:
-
Dithionite citrate bicarbonate
- AFS:
-
Atomic fluorescence spectrometer
- ICP-AES:
-
Inductively coupled plasma atomic emission spectrometer
- ICP-MS:
-
Inductively coupled plasma mass spectroscopy
- TF:
-
Transfer factor
References
Arvy MP (1993) Selenate and selenite uptake and translocation in bean plants (Phaseolus vulgaris). J Exp Bot 44:1083–1087
Balistrieri LS, Chao TT (1987) Selenium adsorption by goethite. Soil Sci Soc Am J 51:1145–1151
Barrow NJ, Whelan BR (1989) Testing a mechanistic model. VII. The effects of pH and of electrolyte on the reaction of selenite and selenate with a soil. J Soil Sci 40:17–28
Batty LC, Baker AJM, Wheeler BD, Curtis CD (2000) The effect of pH and plaque on the uptake of Cu and Mn in Phragmites australis (Cav.) Trin ex. Steudel. Ann Bot 86:647–653
Batty LC, Baker AJM, Wheeler BD (2002) Aluminium and phosphate uptake by Phragmites australis: the role of Fe, Mn and Al root plaques. Ann Bot 89:443–449
Broadley MR, White PJ, Bryson RJ, Meacham MC, Bowen HC, Johnson SE, Hawkesford MJ, McGrath SP, Zhao FJ, Breward N, Harriman M, Tucker M (2006) Biofortification of UK food crops with selenium. P Nutr Soc 65:169–181
Chen CC, Dixon JB, Turner FT (1980) Iron coatings on rice roots: morphology and models of development. Soil Sci Soc Am J 44:1113–1119
Chen L, Yang F, Xu J, Hu Y, Hu Q, Zhang Y, Pan G (2002) Determination of selenium concentration of rice in China and effect of fertilization of selenite and selenate on selenium content of rice. J Agr Food Chem 50:5128–5130
Chen Z, Zhu YG, Liu WJ, Meharg AA (2005) Direct evidence showing the effect of root surface iron plaque on arsenite and arsenate uptake into rice (Oryza sativa) roots. New Phytol 165:91–97
Elrashidi MA, Adriano DC, Workman SM, Lindsay WL (1987) Chemical equilibria of selenium in soils: a theoretical development1. Soil Sci 144:141–152
Emerson D, Weiss JV, Johanna V (1999) Iron oxidizing bacteria are associ-ated with ferric hydroxide precipitates (Fe-plaque) on the roots of wetland plants. Appl Environ Microbiol 65:2758–2761
Greipsson S (1995) Effect of iron plaque on roots of rice on growth of plants in excess zinc and accumulation of phosphorus in plants in excess copper or nickel. J Plant Nutr 18:1659–1665
Hansel CM, Fendorf S, Sutton S, Newville M (2001) Characterization of Fe plaque and associated metals on the roots of mine-waste impacted aquatic plants. Environ Sci Technol 35:3863–3868
Hayes KF, Roe AL, Brown GE, Hodgson KO, Leckie JO, Parks GA (1987) In situ X-ray absorption study of surface complexes: selenium oxyanions on α-FeOOH. Science 238:783–786
Hu QH, Chen LC, Xu J, Zhang YL, Pan GX (2002) Determination of selenium concentration in rice and the effect of foliar application of Se-enriched fertilizer or sodium selenite on the selenium content of rice. J Sci Food Agr 82:869–872
Jiang FY, Chen X, Luo AC (2009) Iron plaque formation on wetland plants and its influence on phosphorus, calcium and metal uptake. Aquat Ecol 43:879–890
Kuo S (1986) Concurrent sorption of phosphate and zinc, cadmium, or calcium by a hydrous ferric oxide. Soil Sci Soc Am J 50:1412–1419
Lemly AD (1997) Environmental implications of excessive selenium: a review. Biomed Environ Sci 10:415–435
Li HF, Lombi E, Stroud JL, McGrath SP, Zhao FJ (2010) Selenium speciation in soil and rice: influence of water management and Se fertilization. J Agr Food Chem 58:11837–11843
Liu WJ, Zhu YG, Smith FA, Smith SE (2004) Do iron plaque and genotypes affect arsenate uptake and translocation by rice seedlings (Oryza sativa L.) grown in solution culture? J Exp Bot 55:1707–1713
Lyons G, Stangoulis J, Graham R (2003) High-selenium wheat: biofortification for better health. Nutr Res Rev 16:45–60
Mei XQ, Wong MH, Yang Y, Dong HY, Qiu RL, Ye ZH (2012) The effects of radial oxygen loss on arsenic tolerance and uptake in rice and on its rhizosphere. Environ Pollut 165:109–117
Neal RH, Sposito G (1989) Selenate adsorption on alluvial soils. Soil Sci SocAm J 53:70–74
Neal RH, Sposito G, Holtzclaw KM, Traina SJ (1987) Selenite adsorption on alluvial soils: I. Soil composition and pH effects. Soil Sci Soc Am J 51:1161–1165
Otte ML, Rozema J, Koster L, Haarsma MS, Broekman RA (1989) Iron plaque on roots of Aster tripolium L.: interaction with zinc uptake. New Phytol 111:309–317
Rayman MP (2000) The importance of selenium to human health. Lancet 356:233–241
Rayman MP (2002) The argument for increasing selenium intake. P Nutr Soc 61:203–215
Ryden JC, Syers JK, Tillman RW (1987) Inorganic anion sorption and interactions with phosphate sorption by hydrous ferric oxide gel. J Soil Sci 38:211–217
Sors TG, Ellis DR, Salt DE (2005) Selenium uptake, translocation, assimilation and metabolic fate in plants. Photosynth Res 86:373–389
Taylor GJ, Crowder AA (1983) Use of the DCB technique for extraction of hydrous iron oxides from roots of wetland plants. Am J Bot 70:1254–1257
Taylor GJ, Crowder AA, Rodden R (1984) Formation and morphology of an iron plaque on the roots of Typha latifolia L. grown in solution culture. Am J Bot 71:666–675
Van Vleet JF, Ferrans VJ (1992) Etiologic factors and pathologic alterations in selenium-vitamin E deficiency and excess in animals and humans. Biol Trace Elem Res 33:1–21
Wang T, Peverly JH (1996) Oxidation states and fractionation of plaque iron on roots of common reeds. Soil Sci Soc Am J 60:323–329
Weiss JV, Emerson D, Backer SM, Megonigal JP (2003) Enumeration of Fe(II)-oxidizing and Fe(III)-reducing bacteria in the root zone of wetland plants: implications for a rhizosphere iron cycle. Biogeochemistry 64:77–96
Whanger PD (2004) Selenium and its relationship to cancer: an update. Brit J Nutr 91:11–28
White PJ, Bowen HC, Parmaguru P, Fritz M, Spracklen WP, Spiby RE, Meacham MC, Mead A, Harriman M, Trueman LJ, Smith BM, Thomas B, Broadley MR (2004) Interactions between selenium and sulphur nutrition in Arabidopsis thaliana. J Exp Bot 55:1927–1937
Williams PN, Lombi E, Sun GX, Scheckel K, Zhu YG, Feng XB, Zhu JM, Carey AM, Adomako E, Lawgali Y, Deacon C, Meharg AA (2009) Selenium characterization in the global rice supply chain. Environ Sci Technol 43:6024–6030
Xu B, Yu S (2013) Root iron plaque formation and characteristics under N2 flushing and its effects on translocation of Zn and Cd in paddy rice seedlings (Oryza sativa). Ann Bot 111:1189–1195
Ye ZH, Cheung KC, Wong MH (2001) Copper uptake in Typha latifolia as affected by iron and manganese plaque on the root surface. Can J Bot 79:314–320
Zhang X, Zhang F, Mao D (1999) Effect of iron plaque outside roots on nutrient uptake by rice (Oryza sativa L.): phosphorus uptake. Plant Soil 209:187–192
Zhang LH, Hu B, Li W, Che RH, Deng K, Li H, Yu FY, Li HQ, Li YJ, Chu CC (2014) OsPT2, a phosphate transporter, is involved in the active uptake of selenite in rice. New Phytol 201:1183–1191
Zhou XB, Shi WM (2007) Effect of root surface iron plaque on Se translocation and uptake by Fe-deficient rice. Pedosphere 17:580–587
Zhou XB, Shi WM, Zhang LH (2007) Iron plaque outside roots affects selenite uptake by rice seedlings (Oryza sativa L.) grown in solution culture. Plant Soil 290:17–28
Acknowledgments
This work was financially supported by the National Natural Science Foundation of China (No. 41073094 and No. 41471271) and the Special Fund for Agro-scientific Research in the Public Interest of China (No. 201303106).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Huang, Q., Yu, Y., Wang, Q. et al. Uptake kinetics and translocation of selenite and selenate as affected by iron plaque on root surfaces of rice seedlings. Planta 241, 907–916 (2015). https://doi.org/10.1007/s00425-014-2227-7
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00425-014-2227-7