Artículos de revistas
Glutathione S-transferase activity in acetochlor, atrazine and oxyfluorfen metabolization in maize (Zea mays L.), sorghum (Sorghum bicolor L.) and wheat (Triticum aestivum L.) (Poaceae)
Date
2002-12-01Registration in:
Acta Scientiarum - Biological and Health Sciences, v. 24, n. 2, p. 619-623, 2002.
1415-6814
10.4025/actascibiolsci.v24i0.2366
2-s2.0-0036942453
2-s2.0-0036942453.pdf
8459042567486109
Author
Universidade Estadual Paulista (Unesp)
Rohm and Haas Química Ltda.
Institutions
Abstract
This experiment was conducted to evaluate the acetochlor, atrazine and oxyfluorfen herbicides plant selectivity, in relation to glutathione S-transferase activity (GST) in maize (Zea mays L.), sorghum (Sorghum bicolor L.) and wheat (Triticum aestivum L) (Poaceae) plants. GST activity was detected 24, 48 and 72 hours after treatment applications. The experiment's treatments consisted of spraying plants with water (control), acetochlor (3 L.ha -1), atrazine (4 L.ha -1) and oxyfluorfen (1 L.ha -1). The highest GST activities were observed in presence of acetochlor, mainly at 48 hours after treatment. These increments were 105, 148 and 118% when compared to maize, sorghum and wheat control groups, respectively. It is suggested that the GST may have a role in acetochlor degradation and it may be a reason for this herbicide's selectivity in these crops.
Subjects
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