| | 1 | Author
| JohnV. Dean, JohnW. Gronw, MichaelP. Anderson | Requires cookie* | | | Title
| Glutathione S-Transferase Activity in Nontreated and CGA-154281- Treated Maize Shoots  | | | | Abstract
| Fast protein liquid chromatography (anion exchange) was used to separate glutathione S-transferase isozymes in nontreated etiolated maize shoots and those treated with the herbi cide safener C G A -154281 4-(dichloroacetyl)-3,4-dihydro-3-methyl-2 H-l ,4-benzoxazine. Non treated shoots contained isozymes active with the following substrates: fra/?s-cinnamic acid (1 isozyme), atrazine (3 isozymes), l-chloro-2,4-dinitrobenzene (1 isozyme), metolachlor (2 isozymes) and the sulfoxide derivative of S-ethyl dipropylcarbamothioate (2 isozymes). Pre treatment of shoots with the safener C G A -154281 (1 (aM) had no effect on the activity of the isozymes selective for rratts-cinnamic acid and atrazine but increased the activity of the consti-tutively-expressed isozymes that exhibit activity with l-chloro-2,4-dinitrobenzene, metola chlor and the sulfoxide derivative of S-ethyl dipropylcarbamothioate. The safener pretreat ment also caused the appearance o f one new isozyme active with l-chloro-2,4-dinitrobenzene and one new isozyme active with metolachlor. The results illustrate the complexity of gluta thione S-transferase activity in etiolated maize shoots, and the selective enhancement of gluta thione S-transferase isozymes by the safener CG A -154281. | | | |
Reference
| Z. Naturforsch. 46c, 850—855 (1991); received March 26 1991 | | | |
Published
| 1991 | | | |
Keywords
| CG A-154281, Safener, Glutathione S-Transferase, Glutathione, Maize | | | |
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| default:Reihe_C/46/ZNC-1991-46c-0850.pdf | | | | Identifier
| ZNC-1991-46c-0850 | | | | Volume
| 46 | |
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