Abstract:
:Triphenylmethane dyes are extensively utilized in textile industries, medicinal products, biological stains, and food processing industries, etc. They are generally considered as xenobiotic compounds, which are very recalcitrant to biodegradation. The widespread persistence of such compounds has generated concerns with regard to remediation of them because of their potential carcinogenicity, teratogenicity, and mutagenicity. In this study, we present a system of phytoremediation by Arabidopsis plants developed on the basis of overexpression of triphenylmethane reductase (TMR) from the Citrobacter sp. The morphology and growth of TMR transgenic Arabidopsis plants showed significantly enhanced tolerances to crystal violet (CV) and malachite green (MG). Further, HPLC and HPLC-MS analyses of samples before and after dye decolorization in culture media revealed that TMR transgenic plants exhibited strikingly higher capabilities of removing CV from their media and high efficiencies of converting CV to non-toxic leucocrystal violet (LCV). This work indicates that microbial degradative gene may be transgenically exploited in plants for bioremediation of triphenylmethane dyes in the environment.
journal_name
Appl Microbiol Biotechnoljournal_title
Applied microbiology and biotechnologyauthors
Fu XY,Zhao W,Xiong AS,Tian YS,Zhu B,Peng RH,Yao QHdoi
10.1007/s00253-012-4106-0subject
Has Abstractpub_date
2013-02-01 00:00:00pages
1799-806issue
4eissn
0175-7598issn
1432-0614journal_volume
97pub_type
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