Konjac plants were treated with lanthanum chloride during early corm expansion, and corm glucomannan content and gene expression were analyzed. Lanthanum at 20 to 80 mg/L increased glucomannan, and transcriptome analysis identified carbohydrate and hormone-related genes linked to the effect. Lanthanum in the corms, the edible part, was not measured.
Key numbers
- Lanthanum at 20 to 80 mg/L significantly increased konjac glucomannan compared with controls (abstract).
- 21,047 differentially expressed genes were identified (abstract).
Methods (brief)
Single lanthanum chloride treatment, corm sampling at 7, 14 and 60 days, RNA sequencing and qRT-PCR validation with three biological replicates.
Evidence fitness
Supports statements that lanthanum is explored as a yield or quality input for a food crop. It does not quantify lanthanum residues in konjac.
Limitations
No lanthanum residue data; mechanism inferred from expression correlations.
Related evidence
Update history
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