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1991 (1)
1Author    JohnV. Dean, JohnW. Gronw, MichaelP. AndersonRequires 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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 TEI-XML for    default:Reihe_C/46/ZNC-1991-46c-0850.pdf 
 Identifier    ZNC-1991-46c-0850 
 Volume    46