Radicular and foliar uptake, and xylem- and phloem-mediated transport of selenium in maize (Zea mays L.): a comparison of five Se exogenous species
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Various species of selenium (Se) can be radicularly or foliarly absorbed by plants. However, differences of these species in uptake and transport via the xylem or phloem remain unclear.
Maize (Zea mays L.) seedlings were grown in hydroponic solutions with five exogenous Se species [inorganic forms: selenite and selenate; and organic forms: selenomethionine (SeMet), methyl-selenocysteine (MeSeCys), and selenocystine (SeCys2)] radicularly or foliarly applied on the plants.
Under radicular application, the seedlings showed higher root uptake of organic Se than inorganic forms. Moreover, the largest proportion of Se in the shoots was found under MeSeCys treatment. Se accumulation under foliar application was low. The uptake of inorganic Se was higher than that of organic forms under foliar treatments. The phloem of maize showed a strong ability for downward Se transport, although the proportion of that in the whole plant was small (<10%). The largest percentage of Se distributed in the roots was found under MeSeCys treatments.
As a C4 species, maize can accumulate much Se from organic Se through root uptake but from inorganic forms through leaf uptake. It can transport much Se from the “source” to the “sink” with the application of organic Se, especially MeSeCys.
KeywordsAbsorption Leaf Redistribution Split-root Translocation
This work was supported by the National Natural Science Foundation of China (grant number 41571454, to D.L. Liang).
- Abrams MM, Shennan C, Zasoski RJ, Burau RG (1990) Selenomethionine uptake by wheat seedlings. Agron J 82(6):1127–1130. https://doi.org/10.2134/agronj1990.00021962008200060021x CrossRefGoogle Scholar
- Ajwa HA, Bañuelos GS, Mayland HF (1998) Selenium uptake by plants from soils amended with inorganic and organic materials. J Environ Qual 27(5):1218–1227. https://doi.org/10.2134/jeq1998.00472425002700050029x CrossRefGoogle Scholar
- Ali F (2018) Effect of selenite and selenate application (soil or foliar) on transport, transformation, and distribution of selenium in soil and their bioavailability in wheat (Triticum aestivum L.). Northwest A & F University, YanglingGoogle Scholar
- Arvy MP (1982) Translocation of selenium in the bean plant (Phaseolus vulgaris) and the field bean (Vicia faba). Physiol Plantarum 56(3):299–302. https://doi.org/10.1111/j.1399-3054.1982.tb00342.x CrossRefGoogle Scholar
- Bañuelos GS, Arroyo IS, Dangi SR, Zambrano MC (2016) Continued selenium biofortification of carrots and broccoli grown in soils once amended with Se-enriched S. pinnata. Front Plant Sci. https://doi.org/10.3389/fpls.2016.01251
- Bowen JE (1969) Absorption of borate ionic species by Saccharum officinarum L. Plant Cell Physiol 10(1):227–230. https://doi.org/10.1093/oxfordjournals.pcp.a074390 CrossRefGoogle Scholar
- Freeman JL, Zhang LH, Marcus MA, Fakra S, McGrath SP, Pilon-Smits EA (2006) Spatial imaging, speciation, and quantification of selenium in the hyperaccumulator plants Astragalus bisulcatus and Stanleya pinnata. Plant Physiol 142(1):124–134. https://doi.org/10.1104/pp.106.081158 CrossRefPubMedPubMedCentralGoogle Scholar
- Golubkina NA, Kosheleva OV, Krivenkov LV, Dobrutskaya HG, Nadezhkin S, Caruso G (2017) Intersexual differences in plant growth, yield, mineral composition and antioxidants of spinach (Spinacia oleracea L.) as affected by selenium form. Sci Hortic 225:350–358. https://doi.org/10.1016/j.scienta.2017.07.001 CrossRefGoogle Scholar
- Larue C, Castillo-Michel H, Sobanska S, Cécillon L, Bureau S, Barthès V, Ouerdane L, Carrière M, Sarret G (2014a) Foliar exposure of the crop Lactuca sativa to silver nanoparticles: evidence for internalization and changes in Ag speciation. J Hazard Mater 264:98–106. https://doi.org/10.1016/j.jhazmat.2013.10.053 CrossRefPubMedGoogle Scholar
- Larue C, Castillo-Michel H, Sobanska S, Trcera N, Sorieul S, Cécillon L, Ouerdane L, Legros S, Sarret G (2014b) Fate of pristine TiO2 nanoparticles and aged paint-containing TiO2 nanoparticles in lettuce crop after foliar exposure. J Hazard Mater 273:17–26. https://doi.org/10.1016/j.jhazmat.2014.03.014 CrossRefPubMedGoogle Scholar
- Shinmachi F, Buchner P, Stroud JL, Parmar S, Zhao FJ, McGrath SP, Hawkesford MJ (2010) Influence of sulfur deficiency on the expression of specific sulfate transporters and the distribution of sulfur, selenium, and molybdenum in wheat. Plant Physiol 153(1):327–336. https://doi.org/10.1104/pp.110.153759 CrossRefPubMedPubMedCentralGoogle Scholar
- Terry N, Zayed AM (1994) Selenium volatilization by plants. Marcel Dekker, New YorkGoogle Scholar
- Turgeon R, Wolf S (2009) Phloem transport: cellular pathways and molecular trafficking. Annu Rev Plant Biol 60:207–221. https://doi.org/10.1146/annurev.arplant.043008.092045 CrossRefPubMedGoogle Scholar
- Van Hoewyk D, Takahashi H, Inoue E, Hess A, Tamaoki M, Pilon-Smits EAH (2008) Transcriptome analyses give insights into selenium-stress responses and selenium tolerance mechanisms in Arabidopsis. Physiol Plantarum 132(2):236–253. https://doi.org/10.1111/j.1399-3054.2007.01002.x CrossRefGoogle Scholar
- Wang S, Liang D, Wang D, Wei W, Fu D, Lin Z (2012) Selenium fractionation and speciation in agriculture soils and accumulation in corn (Zea mays L.) under field conditions in Shaanxi Province, China. Sci Total Environ 427: 159-164. https://doi.org/10.1016/j.scitotenv.2012.03.091CrossRefGoogle Scholar
- Wu Y, Gao L, Cao M, Xiang C (2007) Plant sulfur metabolism, regulation, and biological functions. Chinese Bull Bot 24(6):735–761 (in Chinese). https://doi.org/10.3969/j.issn.1674-3466.2007.06.006 CrossRefGoogle Scholar