Two tea cultivars with low and high lanthanum accumulation were treated with lanthanum, and their roots and fresh leaves were compared by proteomics. Lanthanum content rose in both roots and leaves after treatment and was higher in roots than leaves, and glutathione and alpha-linolenic acid pathways differed between cultivars. The authors describe lanthanum as the rare earth element tea plants accumulate most.
Key numbers
- Lanthanum treatment 1.20 mmol/L as lanthanum chloride (Methods).
- 845 differentially expressed proteins identified (abstract).
- Leaf and root lanthanum concentrations appear only in a figure (Figure 1).
Methods (brief)
Hydroponic or pot exposure of two cultivars, lanthanum analysis of roots and leaves, and label-based proteomics with pathway enrichment.
Evidence fitness
Supports the statement that tea plant cultivars differ in lanthanum accumulation in leaves, the harvested part. It does not give tabulated leaf values or levels in processed tea.
Limitations
Values only in figures; fresh leaves rather than made tea; treatment concentration far above field levels.
Related evidence
Update history
No substantive edit history is available in this build. The full commit record is available in git.