Abstract:
:Assessment of the food chain mobility of heavy metals in the natural ecosystem receives more attention nowadays. In the present study, mulberry-silkworm food chain has been focused as a templet to assess the biomobility of heavy metals in soil-higher plant-insect hierarchy. Both in the case of Cd and Cu treatments, higher mobility was observed in the level-1 (soil-root) followed by level-3 (leaf-larva), level-4 (larvae-faecal) and level-2 (root-leaf). Consequently, roots accumulated more amounts of Cd and Cu, with a limited transport to the leaves. Among the two metals (Cd and Cu) tested, in the plant, the transfer potential of Cd exceeds that of Cu. Whereas in the case of leaf-larval transfer, Cu precedes over Cd. Accumulation of Cd and Cu in all the levels (1-4) tested showed a concentration dependent increase, except in the level 4 (larva-faecal) of Cd treatment where a declining trend was noticed.
journal_name
Environ Monit Assessjournal_title
Environmental monitoring and assessmentauthors
Prince SP,Senthilkumar P,Subburam Vdoi
10.1023/a:1010715606097subject
Has Abstractpub_date
2001-07-01 00:00:00pages
231-8issue
3eissn
0167-6369issn
1573-2959journal_volume
69pub_type
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