Effect of Foliar Application of Sodium Selenate on Mineral Relationships in Brassicaceae Crops

Abstract

The relationships of selenium (Se) with other elements in plants is important for producing functional food with high Se contents and a predicted quality. To unveil the peculiarities of the element interactions, eight botanical varieties of Brassica oleracea L. were grown in similar conditions with or without foliar application of sodium selenate. High varietal differences, elicited by the Se supply, were recorded with regard to the accumulation of the elements examined, except for Mg, P and Si. Cabbage florets (broccoli and cauliflower) were characterized by both the lowest total mineral content and number of elements showing content changes under the Se supply (7–8 out of 25), whereas in Savoy cabbage, the highest number of minerals displayed content changes (13–14 from 25). The Se treatment did not significantly interfere with the high correlation coefficients recorded between Sr–Ca, Co–Ni and Zn–Mg (0.824–0.952). The selenium biofortification value varied from 12 to 138 depending on the species and was inversely correlated with the Si accumulation in the control plants (r = −0.872, p < 0.001). A significant decrease in the correlation coefficients occurred due to the Se supply regarding Zn with P and Co, Ca with Co and Li, Li and V, and Na and Sn, while the V–Pb relationship was significantly enhanced. Among the 25 elements studied, Cr demonstrated the highest number of significant correlation coefficient changes (with K, Na, P, Si, Zn, Cu, Co, I, As, Pb, and V). The results of this research prove the variability of the element interactions under foliar Se treatments in Brassica oleracea plants and reveal, for the first time, an inverse correlation between the Se biofortification level and Si content in untreated plants.

Effect of Seed Spaceflight Storage on Tomato Fruit Quality and Peel/Pulp Mineral and Antioxidant Distribution

“…Contrary to the peculiarities in Ca accumulation, with a typical decrease of this element both in the peel and pulp of space-treated fruit, the potassium content in tomato pulp was rather stable compared to the peel, with a significant K level decrease in plants grown from space-treated seeds. According to literature data, Se may either stimulate or inhibit the accumulation of K in plants [66], though in most cases, no correlations between these elements have been revealed [67]. The present results indicate a significant negative correlation between the mentioned parameters.…”

Agronomic and Genetic Strategies to Enhance Selenium Accumulation in Crops and Their Influence on Quality

“…A recent study indicated that the foliar spraying of selenates not only resulted in changes in the mineral elements in kale crops but also altered the quantitative relationships between the elements. For instance, the correlation coefficient between Se and Si significantly increased, while the coefficients between Zn, P, and Co notably decreased [178].…”

Comparative Evaluation of Antioxidant Status and Mineral Composition of Diploschistes ocellatus, Calvatia candida (rostk.) Hollós, Battarrea phalloides and Artemisia lerchiana in Conditions of High Soil Salinity

“…The determination of 25 elements (Al, As, B, Ca, Cd, Co, Cr, Cu, Fe, I, K, Li, Mg, Mn, Mo, Na, Ni, P, Pb, Se, Si, Sn, Sr, V, and Zn) was performed on dried homogenized samples using ICP-MS on quadruple mass-spectrometer Nexion 300D (Perkin Elmer Inc., Shelton, CT, USA), according to Golubkina et al [55].…”