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You searched for: Source 1997 v.114 no.2 Remove constraint Source: 1997 v.114 no.2 Subject Nicotiana tabacum Remove constraint Subject: Nicotiana tabacum Subject enzyme activity Remove constraint Subject: enzyme activity Subject Agrobacterium radiobacter Remove constraint Subject: Agrobacterium radiobacter Text availability Citation in PubAg Remove constraint Text availability: Citation in PubAg Text Availability Citation in PubAg Remove constraint Text Availability: Citation in PubAg
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1. Overproduction of ascorbate peroxidase in the tobacco chloroplast does not provide protection against ozone

Author:
Torsethaugen, G.; Pitcher, L.H.; Zilinskas, B.A.; Pell, E.J.
Source:
Plant physiology 1997 v.114 no.2 pp. 529-537
ISSN:
0032-0889
Subject:
genetic transformation; gene transfer; biosynthesis; phytotoxicity; gas exchange; transgenic plants; Agrobacterium radiobacter; stress response; ozone; measurement; Nicotiana tabacum; enzyme activity; peroxidase; antioxidants; chloroplasts; ascorbic acid
Abstract:
... Transgenic tobacco (Nicotiana tabacum cv Bel W3) plants were used to test the hypothesis that protection from O3 injury could be conferred by overproduction of ascorbate peroxidase (APX) in the chloroplast. The 10-fold increase in soluble APX activity in the chloroplast was expected to alleviate an implied increase in oxidative potential and prevent damage caused by O3. Three different O3 exposure ...