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Phenol removal using Brassica juncea hairy roots: Role of inherent peroxidase and H2O2

Paper ID Volume ID Publish Year Pages File Format Full-Text
25777 43599 2006 7 PDF Available
Title
Phenol removal using Brassica juncea hairy roots: Role of inherent peroxidase and H2O2
Abstract

Removal of phenol, a major pollutant in aqueous effluents was studied using plant hairy root cultures. Among four different species of hairy roots tested, Brassica juncea showed the highest potential for phenol removal. The effect of phenol concentration and reuse in a batch system was studied using B. juncea hairy root cultures. Unlike most of the studies reported earlier, phenol removal by the hairy roots was seen to take place without the need for addition of external hydrogen peroxide (H2O2). To understand the mechanism of phenol removal, levels of peroxidase and phenol oxidase were monitored in the hairy roots. Peroxidase activity in the roots was enhanced when exposed to phenol, while phenol oxidase remained constant. Since peroxidase has a pre-requisite for H2O2, the levels of H2O2 were monitored for its in situ synthesis. H2O2 levels were seen to increase in the presence of phenol. Thus, a mechanism wherein hairy roots also produce H2O2 besides peroxidase, as a protection strategy of plant against xenobiotic stress is plausible.

Keywords
Hairy root culture; Brassica juncea; Phenol; Hydrogen peroxide; Peroxidases; Phytoremediation
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Biotechnology - Volume 123, Issue 1, 3 May 2006, Pages 43–49
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us