Table 5. Brassicaceae: Crop Species, Se Treatment (Se Source, Dose, and Application Mode), and Effects on Total (TSeC) and Organic Se Content and Other Nutritional Traits.
| species | Se source | dose | type of treatment | total Se concentrations | Se organic | other nutritional traits | references |
|---|---|---|---|---|---|---|---|
| Raphanus sativus L. (cv. Saxa) | sodium selenate | 5–20 mg of Se plant–1 (pot experiment) | pot experiment (soil substrate, foliar application) in hydroponics | pot experiment (μg plant–1): in roots, 6.87–15.38 in hydroponics (μg); in roots, 0.007–6.56 | pot experiment (mg 100 mg–1 tissue FWa): ↑SeMetSeCys in roots, 1.62–3.34. In hydroponics (mg 100 mg–1 tissue FW): in roots, 0.75–1.51 | ↑phenolic, ↑cysteine, ↑glutathione, ↑glucoraphanin, ↑total N, ↓polyphenols in hydroponics,: ↑biomass cysteine in root, ↓glutathione both in roots and leaves, ≈polyphenols | (136) |
| 0.4–1.6 mg of Se plant–1 (hydr. experiment) | |||||||
| Brassica oleracea L. (var. Marathon) | shoots of Se-accumulator plant Stanleyapinnata L. (powdered plant material, 700 μg of Se g–1 DW) | 17.5–140 mg of Se lisimeter–1 | field-installed lisimeters filled with amended soil | in florets (μg of Se g–1 DWb): 0.5–3.5 | in florets (%). (real time SAX-HPLC-ICPMS): 58 SeMet, 15 CysSeSeCys, 7.4 MeSeCys, 6 selenate, 3.1 selenite. (XANES): 55 SeMet and MeSeCys, 23 CysSeSeCys, 18 SeOMet, 4 selenate | ↑Se content | (56) |
| Brassica oleracea L. (Var. Heraklion, Marathon, Parthenon, and Naxos) | sodium selenate | 25–50 g of Se Ha–1 | field experiment (foliar application) | in heads (mg of Se kg–1 DW): 0.335–1.01 | selenate, SeCys2, Se-MetSeCys, SeMet, and 2 unknown species | ↑Se in the flower heads. ↑Se content in all parts of the plants. | (57) |
| Brassica oleracea L. (var. Capitata, cv. Pandion) and Brassica oleracea L. (var. Capitata, f rubra, cv. Erfurtskorano) | sodium selenate | 20 mg of Se L–1 (Pandion), 0.5 mg of Se L–1 (f rubra) | field experiment (foliar application Pandion, soil fertilized twice, f rubra) | Pandion: in stems (μg of Se g–1 DW), 5.45. F rubra: in stems (μg of Se g–1 DW), 0.81 | (ng of Se g–1 of sample): ↑SeMet Pandion in stems, 820; f rubra in stems, 200 | ↑Se content ↑SeMet | (58) |
| Brassica oleracea L. (var. Italica, cv. Monaco) | sodium selenate | young plants: weekly selenate applications of 0.8 μmol plant–1 via the root | young plants, 2 weeks after transplant (soil application, pot experiment, sand substrate) | in the adult plant heads (mg of Se kg–1 DW): upper stems, 5.5–58.0; terminal florets, 10–57.0 | NAc | (137) | |
| adult plants: single foliar selenate application of 25.3 or 253 μmol plant–1 | adult plants, 3-month old (field experiment, foliar application) | ||||||
| Brassica oleracea L. (var. Capitata, f rubra, cv. Erfurtskorano) | sodium selenate | 1st group: with a solution at a concentration of 2 μg of Se L–1 every second day for 2 months | field experiment (soil substrate) | in stems (ng of Se g–1 DW): 25–810. In leaves (ng of Se g–1 DW): 20–960 | NA | ≈anthocyanins, ≈chlorophyll | (60) |
| 2nd group: fertilized with 0.5 mg of Se L–1 twice in the same test period |
a
FW: fresh weight.
b
DW: dry weight.
c
NA: not analyzed.