caa a22 4500 445841591 CHVBK 20180317145346.0 cr unu---uuuuu 170323e20110901xx s 000 0 eng 10.1007/s10725-011-9583-0 doi (NATIONALLICENCE)springer-10.1007/s10725-011-9583-0 Photosynthesis and metabolism of sugars from lettuce plants ( Lactuca sativa L. var. longifolia) subjected to biofortification with iodine [Elektronische Daten] [B. Blasco, J. Rios, R. Leyva, R. Melgarejo, C. Constán-Aguilar, E. Sánchez-Rodríguez, M. Rubio-Wilhelmi, L. Romero, J. Ruiz] Iodine, essential to human life, is in part ingested through vegetable consumption, explaining the current application of this element in biofortification programs. Few data are available on the effects of iodine on main plant metabolisms such as carbon metabolism. The objective of this study was to determine the effect of the application of different doses (20, 40 and 80μM) and forms of iodine (iodate [IO3 −] and iodide [I−]) on photosynthesis and carbohydrate metabolism in lettuce plants. None of these treatments exerted significant effects on the synthesis pathway or on sucrose degradation. Application of 80μM of I− reduced the photosynthesis rate, which may be associated with the reduction found in biomass and photosynthetic parameters (stomatic conductance and transpiration). This finding confirms that the application of high doses of I− has a phytotoxic effect on plant physiology. In contrast, all IO3 − treatments increased the biomass of the plants which showed an elevated photosynthetic rate, stomatic conductance, and transpiration (vs. controls). The differential crop behavior observed with the two forms of this trace element suggests that IO3 − should be selected for future biofortification programs. Springer Science+Business Media B.V., 2011 Carbohydrate metabolism nationallicence Iodine nationallicence Net photosynthetic rate nationallicence Water use efficiency nationallicence Chl a : Chlorophyll a nationallicence Chl b : Chlorophyll b nationallicence FBPase : Fructose 1, 6-bisphosphatase nationallicence IO3 − : Iodate nationallicence I− : Iodide nationallicence SPS : Sucrose phosphate synthase nationallicence WUE : Water use efficiency nationallicence Blasco B. Department of Plant Physiology, Faculty of Sciences, University of Granada, 18071, Granada, Spain aut Rios J. Department of Plant Physiology, Faculty of Sciences, University of Granada, 18071, Granada, Spain aut Leyva R. Department of Plant Physiology, Faculty of Sciences, University of Granada, 18071, Granada, Spain aut Melgarejo R. Department of Plant Physiology, Faculty of Sciences, University of Granada, 18071, Granada, Spain aut Constán-Aguilar C. Department of Plant Physiology, Faculty of Sciences, University of Granada, 18071, Granada, Spain aut Sánchez-Rodríguez E. Department of Plant Physiology, Faculty of Sciences, University of Granada, 18071, Granada, Spain aut Rubio-Wilhelmi M. Department of Plant Physiology, Faculty of Sciences, University of Granada, 18071, Granada, Spain aut Romero L. Department of Plant Physiology, Faculty of Sciences, University of Granada, 18071, Granada, Spain aut Ruiz J. Department of Plant Physiology, Faculty of Sciences, University of Granada, 18071, Granada, Spain aut Plant Growth Regulation Springer Netherlands 65/1(2011-09-01), 137-143 0167-6903 65:1<137 2011 65 10725 https://doi.org/10.1007/s10725-011-9583-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10725-011-9583-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Blasco B. Department of Plant Physiology, Faculty of Sciences, University of Granada, 18071, Granada, Spain aut NATIONALLICENCE 700 1- Rios J. Department of Plant Physiology, Faculty of Sciences, University of Granada, 18071, Granada, Spain aut NATIONALLICENCE 700 1- Leyva R. Department of Plant Physiology, Faculty of Sciences, University of Granada, 18071, Granada, Spain aut NATIONALLICENCE 700 1- Melgarejo R. Department of Plant Physiology, Faculty of Sciences, University of Granada, 18071, Granada, Spain aut NATIONALLICENCE 700 1- Constán-Aguilar C. Department of Plant Physiology, Faculty of Sciences, University of Granada, 18071, Granada, Spain aut NATIONALLICENCE 700 1- Sánchez-Rodríguez E. Department of Plant Physiology, Faculty of Sciences, University of Granada, 18071, Granada, Spain aut NATIONALLICENCE 700 1- Rubio-Wilhelmi M. Department of Plant Physiology, Faculty of Sciences, University of Granada, 18071, Granada, Spain aut NATIONALLICENCE 700 1- Romero L. Department of Plant Physiology, Faculty of Sciences, University of Granada, 18071, Granada, Spain aut NATIONALLICENCE 700 1- Ruiz J. Department of Plant Physiology, Faculty of Sciences, University of Granada, 18071, Granada, Spain aut NATIONALLICENCE 773 0- Plant Growth Regulation Springer Netherlands 65/1(2011-09-01), 137-143 0167-6903 65:1<137 2011 65 10725 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer