On the elemental composition of the Mediterranean euhalophyte Salicornia patula Duval-Jouve (Chenopodiaceae) from saline
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RESEARCH ARTICLE
On the elemental composition of the Mediterranean euhalophyte Salicornia patula Duval-Jouve (Chenopodiaceae) from saline habitats in Spain (Huelva, Toledo and Zamora) Irene Sánchez-Gavilán 1 & Lourdes Rufo 2 & Nuria Rodríguez 3 & Vicenta de la Fuente 1 Received: 4 April 2020 / Accepted: 27 August 2020 # Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract A complete survey is presented on the inorganic composition of the euhalophyte annual succulent species Salicornia patula (Chenopodiaceae), including materials from the Iberian Peninsula, littoral-coastal Tinto River basin areas (SW Spain: Huelva province), and mainland territories (NW and central Spain: Zamora and Toledo provinces). The aim of this contribution is to characterize the elemental composition of the selected populations and their soils and compare the relationship between them and the macro- and micronutrient plant intake; all these nutrients may allow this species to be considered an edible plant. Using analytical techniques such as ICP-MS (inductively coupled plasma mass spectrometry), our results revealed high values of Na and K followed by Ca, Mg, Fe and Sr in stems. These data demonstrate the importance of annual halophytic species as edible plants and their potential uses in phytoremediation procedures involving soils with certain heavy metals (Pb, Sr, As, Cu, Zn). Keywords Halophytes . Salicornia . Nutrients . Edible plants . Heavy metals . Phytoremediation
Introduction Halophytes include a series of taxa that grow naturally in saline environments (Flowers et al. 1986; Loconsole et al. 2019). Salicornia L. is one of the most important euhalophyte genera in the Chenopodiaceae family and includes mediumsized therophytes with succulent and articulated stems and inflorescences. The flowering segments host two triflora tops containing three vertical brown seeds with no perisperm and a conduplicate embryo. Its geographical distribution covers four continents: Africa, America, Asia and Europe. Editorial Responsibility: Vedula VSS Sarma * Vicenta de la Fuente [email protected] 1
Departamento de Biología, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, E28049, Madrid, Spain
2
Instituto de Investigaciones Biosanitarias, Facultad de Ciencias Experimentales, Universidad Francisco de Vitoria, Pozuelo de Alarcón, Madrid, Spain
3
Centro de Biología Molecular Severo Ochoa (UAM-CSIC), Universidad Autónoma de Madrid, Cantoblanco, Madrid, Spain
Salicornia taxa accumulate inorganic salts and water in their stems (Grigore and Toma 2017). The most common elements found are Na, Ca, K and Mg, among others, and are present in the stem, leaves and roots (Rhee et al. 2009; Lu et al. 2010; Ventura et al. 2011). Like other chenopods such as Sarcocornia perennis Mill. and Arthrocnemum macrostachyum (Moric.) Moris, recently introduced for human consumption (Barreira et al. 2017), Salicornia patula is also an excellent candidate due to its mineral content. In Korea, tender Salicornia shoots are processed in drin
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