Carnivorous Plant Newsletter Archive

Uptake of lead by Nepenthes via their pitchers

Elizabeth M. Cusick and Francis Q. Brearley

Carniv. Pl. Newslett. 55(1):11-14
Published 12 February 2026

https://doi.org/10.55360/cpn551.ec025

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Abstract

To assess whether Nepenthes can take up contaminant metals via their pitchers, and if this is more efficient than root uptake, we conducted an experiment in which we added lead (Pb)-contaminated maggots or Pb solution to pitchers, or Pb solution to the soil. We found that adding Pb to the pitchers increased pitcher Pb concentrations but there was no indication that Pb added to the soil was taken up by the plants, nor was Pb transferred from the pitchers to the leaves or roots. This study indicates that Nepenthes can, indeed, take up non-essential pollutant metals via their pitchers.

Keywords: assimilation, contamination, metals, pitcher plants

Article Citation

Elizabeth M. Cusick and Francis Q. Brearley. 2026. Uptake of lead by Nepenthes via their pitchers. Carniv. Pl. Newslett. 55(1):11-14. https://doi.org/10.55360/cpn551.ec025

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