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Satish A. Bhalerao and Amit S. Sharma.pdf
Int.J.Curr.Microbiol.App.Sci (2015)
  • Satish Bhalerao, Wilson College
Abstract
In recent years, contamination of the environment by chromium (Cr) has
become a major area of concern. Chromium is the 17th most abundant
element in the earth s mantle. Chromium is used on large scale in many
industries including metallurgical, electroplating, production of paints and
pigments, tanning, wood preservation, chemical production and pulp and
paper production. Cr exists in several oxidation states but the most stable
and common forms are Cr (0), Cr (III) and Cr (VI) species. Cr toxicity in
plant depends on its valence state. Cr (VI) is being highly mobile is toxic. Cr
(III) as less mobile is less toxic. Chromium is known to be a toxic metal that
can cause severe damage to plant. Toxic effects of Cr on plants growth and
development include alterations in the process of germination, growth of
roots, stem and leaves, which may affect total dry matter production and
yield. Cr also causes detrimental effects on the plant physiological processes
such as photosynthesis, water relations, mineral nutrition, oxidative
imbalance and inhibition of enzymatic activities. Chromium can affect
antioxidant metabolism in plant. Chromium- induced oxidative stress
involves induction of lipid peroxidation in plants that causes severe damage
to cell membrane. Cr is able to induce genotoxicity in several plant species.
The use of biological remediation technologies such as bioremediation and
Phytoremediation for the cleanup of Cr-contaminated areas has received
increasing interest from researchers worldwide. This paper includes an
overview of the literature about Cr toxicity in the environment, especially in
water and soil and provides new insights about Cr toxicity in plants.
Keywords
  • Chromium,
  • Oxidative stress,
  • Antioxidant,
  • Cr (III),
  • Cr (VI),
  • Phytoremediation,
  • Bioremediation,
  • Photosynthesis
Disciplines
Publication Date
Summer May 10, 2015
Citation Information
Satish Bhalerao. "Satish A. Bhalerao and Amit S. Sharma.pdf" Int.J.Curr.Microbiol.App.Sci Vol. 4 Iss. 4 (2015) p. 732 - 746 ISSN: ISSN: 2319-7706
Available at: http://works.bepress.com/satish-bhalerao/18/