Biotransfer, bioaccumulation and detoxification of nickel along the soil - faba bean - aphid - ladybird food chain

Mohd Irfan Naikoo*, Fareed Ahmad Khan, Ahmed Noureldeen, Jörg Rinklebe, Christian Sonne, Nishanta Rajakaruna, Parvaiz Ahmad*

*Corresponding author for this work

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

17 Citations (Scopus)

Abstract

Nickel release from anthropogenic and natural sources into the environment has resulted in biomagnification in terrestrial ecosystems. Here, we studied the biotransfer and toxicokinetics of nickel (Ni) along the soil < faba bean < aphid-ladybird food chain. The soil was spiked with the following Ni concentrations (in mg kg−1 soil ww); T0 (0), T1 (25), T2 (50), T3 (75), and T4 (100). Our results revealed a significant elevation of Ni transfer with increasing Ni doses. The transfer coefficients (TC) indicate Ni biomagnified in soil to root and shoot to aphid >1 while the TC of the biominimisation of Ni in the aphid to ladybird was <1. The Ni removal from aphids through honeydew (excreta) and pupal exuviae during metamorphosis suggests a possible detoxification mechanism operating at two distinctive trophic levels, controlling the bioaccumulation of Ni along the examined food chain. Such toxicokinetics is not reported elsewhere and emphasize the need for future studies aiming to elaborate the possible mechanisms, potential components and physiological pathways associated with the bioaccumulation of Ni across food chains of the ecosystem.

Original languageEnglish
Article number147226
JournalScience of the Total Environment
Volume785
ISSN0048-9697
DOIs
Publication statusPublished - Sept 2021

Keywords

  • Aphid
  • Bioaccumulation
  • Biomagnification
  • Biotransfer
  • Faba bean
  • Food chain
  • Ladybird
  • Nickel

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