This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via CrossRef Citing Articles via Google Scholar Google Scholar Articles by Pitcher, L. H. Articles by Zilinskas, B. A. Search for Related Content PubMed PubMed Citation Articles by Pitcher, L. H. Articles by Zilinskas, B. A. Agricola Articles by Pitcher, L. H. Articles by Zilinskas, B. A.

Environmental and Stress Physiology

The Antiozonant Ethylenediurea Does Not Act via Superoxide Dismutase Induction in Bean ¹

Department of Biochemistry and Microbiology, Lipman Hall, Cook College, Rutgers University, New Brunswick, New Jersey 08903-0231, Department of Plant Pathology, Martin Hall, Cook College, Rutgers University, New Brunswick, New Jersey 08903-0231

It has been proposed that the mode of action of ethylenediurea, a very effective antiozonant, is via an increase in the antioxidant enzyme superoxide dismutase (EH Lee, JH Bennett [1982] Plant Physiol 69: 1444-1449). Data presented here refute that hypothesis. No ethylenediurea-associated increases in Cu/Zn-superoxide dismutase or Mn-superoxide dismutase activity, nor in steady-state Cu/Zn-superoxide dismutase protein levels, were found in soluble extracts of bean (Phaseolus vulgaris L. cv Bush Blue Lake 290) leaves. However, the cytosolic Cu/Zn-superoxide dismutase increased as a result of ozone fumigation and subsequent injury. Also noted was a developmentally related difference between chloroplastic and cytosolic Cu/Zn-superoxide dismutase, the latter declining during maturation of the leaf.

This article has been cited by other articles:

				K. Wang and Y. Jiang Antioxidant Responses of Creeping Bentgrass Roots to Waterlogging Crop Sci., January 22, 2007; 47(1): 232 - 238. [Abstract] [Full Text] [PDF]