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Mangrove species selection for phytoremediation of heavy metals from the Sundarbans, Northeast coast of India

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Title Mangrove species selection for phytoremediation of heavy metals from the Sundarbans, Northeast coast of India
 
Creator Mukherjee, P
Das, P K
Ghosh, P
 
Subject Heavy metals
Mangrove species
Selection
Sundarbans
 
Description 123-129
In the Sundarbans mangrove forest, heavy metals like Zn, Cu, Ni, Co, Pb, and Cr were assessed in soil, leaf, stem and
root tissue of various mangrove species. Except for Zn and Cu, the levels of other metals in plant organs were lower than the
metal concentration in sediments. Cu and Cr accumulations were to some extent higher in tissues of all mangrove species in
comparison to the permissible limit in plants. Physicochemical properties of sediments might greatly influence the
availability of metals to mangroves. The mangroves, Nypa fruiticans, Ceriops decandra and Phoenix paludosa are classified
as excluders of Cu with more accumulation of metals mainly occurring in roots, with a resultant Translocation Factor (TF)
1. Both Heritiera fomes and Aegialitis rotundifolia are classified as accumulators,
extractors and translocators of Cu and extractors and translocators of Zn. Accumulators could be considered as tolerant as
well as indicator plants for controlling the movement of metals from root to shoot that becomes proportional to the metals in
the sediment. All of these characteristics of mangrove species in terms of heavy metal accumulation could be considered as
phytoremediation potentiality of mangrove plants and associates. More investigation in these aspects needs to be carried out
not only to identify other species suitable for phytoremediation but also to ensure safe food chains in the coastal ecosystems.
 
Date 2024-02-27T07:08:33Z
2024-02-27T07:08:33Z
2023-03
 
Type Article
 
Identifier 2582-6727 (Online); 2582-6506 (Print)
http://nopr.niscpr.res.in/handle/123456789/63470
https://doi.org/10.56042/ijms.v52i03.7455
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJMS Vol.52(02) [March 2023]