Aims

We propose a thorough study of the succulent halophyte Sarcocornia carinata endemic to the saline lagoons of the center of the Iberian Peninsula. We describe its elemental composition and possible seasonal variation in relation to edaphic and climatic variables, identify biominerals and analyze the distribution of salt ions and biominerals in tissue.

Methods

Plants and edaphic samples were collected in the four seasons of 1 year. Soils were analyzed for their pH, EC, color, and bioavailable concentration of Na⁺, K⁺, Mg²⁺, Ca²⁺, Cl⁻, SO₄²⁻. Soils and plants were analyzed for their total elemental and mineralogical composition. The distribution of elements and minerals in tissues was studied by scanning electron microscopy.

Results

Despite the variations observed in the edaphic and climatic variables, the variables studied in the plants varied slightly throughout the year. In the plants, Mg was the element that reflected climatic changes the most, while the K and Ca concentrations did not vary. Salty precipitates and crystallizations were distributed mainly in the epidermis, water storage parenchyma, cortex, and vascular vessels. Several crystals observed were compatible with halite, gypsum, glushinskite and weddellite.

Conclusions

The study corroborates that inland S. carinata behaves in the same way as other littoral succulent euhalophytes and reinforces the hypothesis that the concentration of elements and quantitative abundance pattern depend largely on the main adaptation mechanisms of halophytes.

中文翻译：

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地方盐生植物Sarcocornia carinata Fuente，Rufo和Sánchez-Mata（藜科）与环境变量的关系：元素组成和生物矿物

目的

我们建议对伊比利亚半岛中部盐水泻湖特有的肉质盐生植物Sarcocornia carinata进行彻底研究。我们描述了其元素组成以及与环境和气候变量有关的可能的季节性变化，确定了生物矿物质并分析了盐离子和生物矿物质在组织中的分布。

方法

在一年的四个季节中收集了植物和土壤样本。土壤分析了它们的pH，EC，颜色，和Na的生物可利用的浓度⁺，K ⁺，Mg的²⁺，钙²⁺，氯^-，SO ₄ ^2-。分析土壤和植物的总元素和矿物组成。通过扫描电子显微镜研究组织中元素和矿物质的分布。

结果

尽管观测到的环境变量和气候变量存在差异，但全年在植物中研究的变量均略有变化。在植物中，镁是最能反映气候变化的元素，而钾和钙的浓度没有变化。咸的沉淀物和结晶主要分布在表皮，储水薄壁组织，皮层和血管中。观察到的几种晶体与岩盐，石膏，辉石和辉绿岩相容。

结论

该研究证实了内陆S.芥中相同的方式，其他沿岸肉质euhalophytes的行为和强化的假设元件和定量丰度图案的浓度在很大程度上取决于盐生植物的主要适应机制。