Evaluation of chromium phyto-toxicity, phyto-tolerance, and phyto-accumulation using biofuel plants for effective phytoremediation

Contamination of chromium signifies one of the major threats to soil system. Phytoremediation is a promising technique to reclaim metal-contaminated soil using plants which are capable to tolerate and accumulate heavy metals within in their tissues. The experiment reported in this article was carrie...

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Bibliographic Details
Published in:International journal of phytoremediation 2019-03, Vol.21 (4), p.352-363
Main Authors: Amin, Hira, Ahmed Arain, Basir, Abbasi, Muhammad Sadiq, Amin, Farah, Jahangir, Taj Muhammad, Soomro, Noor-ul-Ain
Format: Article
Language:English
Subjects:
Accumulation
Bioaccumulation
Biodegradation, Environmental
Biodiesel fuels
Biofuels
Biological magnification
Biomass
Chlorophyll
Chromium
Chromium - chemistry
Contamination
Flowers & plants
Fuels
Germination
Glycine max
Guizotia abyssinica
Heavy metals
Parameters
Phytoremediation
Phytotoxicity
Plant species
Plants (botany)
Reclamation
Sediment pollution
Seed germination
Soil - chemistry
Soil contamination
Soil investigations
Soil Pollutants - analysis
Soil pollution
Soils
tolerance
Toxicity
Translocation
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Summary:Contamination of chromium signifies one of the major threats to soil system. Phytoremediation is a promising technique to reclaim metal-contaminated soil using plants which are capable to tolerate and accumulate heavy metals within in their tissues. The experiment reported in this article was carried out with six biofuel plant species, Cyamopsis tetragonoloba, Glycine max, Avena sativa, Abelmoschus esculentus, Sesamum indicum and Guizotia abyssinica, were subjected to eight Cr concentrations (0.5, 2.5, 5, 10, 25, 50, 75 and 100 mg kg −1 soil) to investigate Cr toxicity, tolerance and accumulation. After 12 weeks of experiment, Cr phytotoxicity on morphological and biochemical parameters were evaluated. For six plant species, seed germination and most of growth parameters were significantly (p  A. sativa > A. esculentus > S. indicum > G. max > G. abyssinica. Bioconcentration factor, bioaccumulation coefficient, translocation factor and phytoremdiation ratio suggested that C. tetragonoloba, A. sativa and A. esculentus being more tolerant; having higher Cr accumulation and could be a high efficient plants for reclamation of Cr-contaminated soils.
ISSN:1522-6514
1549-7879
DOI:10.1080/15226514.2018.1524837