Journal of Food, Agriculture and Environment

Vol 10, Issue 1,2012
Online ISSN: 1459-0263
Print ISSN: 1459-0255

Metolachlor-induced ZmGT1 expression in maize cultivars is correlated with their tolerance to the herbicide


Sen Pang 1, 2+, Liusheng Duan 1+, Zhiqian Liu 3, Xiaoyu Song 2, Xuefeng Li 2*, Chengju Wang 2*

Recieved Date: 2011-09-24, Accepted Date: 2012-01-12


Glutathione conjugation reactions are one of the principal mechanisms that plants utilize to detoxify herbicides. The expression of a previously isolated glutathione transporter gene, ZmGT1, was studied in leaves of three different maize cultivars after treatment by three different herbicides. The results showed that ZmGT1 expression in the Nongda108 cultivar was induced by atrazine and metolachlor, but not by 2,4-D. The inducing effect of metolachlor on ZmGT1 expression varied between cultivars, and correlated positively with the tolerance of the cultivars to this herbicide. It is suggested that ZmGT1 is also involved in the detoxification of xenobiotics by plants.


Detoxification, maize, glutathione transporter, herbicides

Journal: Journal of Food, Agriculture and Environment
Year: 2012
Volume: 10
Issue: 1
Category: Agriculture
Pages: 621-623

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