Transgenic plants: An insight into oxidative stress tolerance mechanisms

Author: Kuźniak, Elżbieta

Source: Acta Physiologiae Plantarum, Volume 24, Number 1, March 2002 , pp. 97-113(17)

Publisher: Springer

Buy & download fulltext article:

Price: $47.00 plus tax (Refund Policy)

Abstract:

Environmental stresses considerably limit plant productivity. At the molecular level the negative effect of stress is often mediated by reactive oxygen species-initiated oxidative damage. Hence, it was hypothesised that increased tolerance to several environmental constraints could be achieved through enhanced tolerance to oxidative stress. In recent years much effort has been undertaken to improve oxidative stress tolerance by transforming plants with native or bacterial genes coding either for reactive oxygen species-scavenging enzymes or for enzymes modulating the cellular antioxidant capacity. This review deals with data on transgenic plants with altered antioxidant capacity and focuses on the new insight into the antioxidant defence mechanism given by this type of experimental model.

Keywords: ascorbate; enzymatic antioxidants; glutathione; oxidative stress tolerance; transgenic plants

Document Type: Research article

DOI: http://dx.doi.org/10.1007/s11738-002-0027-3

Publication date: 2002-03-01