Development of transgenic tobacco plants overexpressing maize glutathione S-transferase I for chloroacetanilide herbicides phytoremediation

A glutathione s-transferase confers herbicide tolerance in rice

“…Transgenic tobacco plants expressing the cotton Gst-cr1 gene showed much higher expression levels of GST and GPX activities, and showed an enhanced resistance to oxidative stress induced by a low concentration of methyl viologen (Yu et al 2003). Transgenic tobacco plants expressing maize glutathione S-transferase I presented substantially higher tolerance to alachlor compared to non-transgenic plants (Karavangeli et al 2005). Over-expression of a specific soybean GmG-STU4 gene improved diphenyl ether and chloroacetanilide herbicide tolerance of transgenic tobacco plants (Benekos et al 2010).…”

Functional Divergence of the Glutathione S-Transferase Supergene Family in Physcomitrella patens Reveals Complex Patterns of Large Gene Family Evolution in Land Plants

“…Genome-wide analysis of biochemical characteristics of Arabidopsis (Arabidopsis thaliana) and poplar (Populus trichocarpa) tau and phi GSTs found that these two classes of GSTs have broad substrate specificities (Dixon et al, 2009;Lan et al, 2009), which may be related to the high tolerance to abiotic stresses, especially to a broad spectrum of xenobiotics. Overexpression of tau or phi GSTs increases tolerance to herbicides, salt, and UV stressors in transgenic plants (Karavangeli et al, 2005;Benekos et al, 2010;Jha et al, 2011), indicating a protective role against abiotic stress. Recently, Arabidopsis GSTF2 was found to selectively bind the indole-derived phytoalexin camalexin and the flavonol quercetin-3-O-rhamnoside, suggesting a role in regulating the binding and transport of defense-related compounds in plants (Dixon et al, 2011).…”

Future Prospects

“…Other successful experiments with genetically modifi ed plants have tackled contamination by herbicides (Karavangeli et al 2005 ), organomercurials , phenolic compounds (Wang et al 2004 ), PCBs (Mohammadi et al 2007 ) and nitroaromatics (Hannink et al 2001 ;Rylott et al 2006 ).…”