Can I read Activation of an Oxidative Burst Is a General Feature of Sensitive Plants Exposed to the Air Pollutant Ozone on EtoBox?

Activation of an Oxidative Burst Is a General Feature of Sensitive Plants Exposed to the Air Pollutant Ozone by H. Wohlgemuth; K. Mittelstrass; S. Kschieschan; J. Bender; H.-J. Weigel; K. Overmyer; J. Kangasjärvi; H. Sandermann; C. Langebartels is a Agricultural and Biological Sciences article available to read on EtoBox.

What is Activation of an Oxidative Burst Is a General Feature of Sensitive Plants Exposed to the Air Pollutant Ozone about?

## Abstract Ozone exposure stimulates an oxidative burst in leaves of sensitive plants, resulting in the generation and accumulation of hydrogen peroxide (H~2~O~2~) in tobacco and tomato, and superoxide (O~2~^–•^) together with H~2~O~2~ in __Arabidopsis__ accessions. Accumulation of these reactive oxygen species (ROS) preceded the induction of cell death, and both responses co‐occurred spatially in the periveinal regions of the leaves. Re‐current ozone exposure of the sensitive tobacco cv. Bel W3 in closed chambers or in the field led to an enlargement of existing lesions by priming the border cells for H~2~O~2~ accumulation. Open top chamber experiments with native herbaceous plants in the field showed that __Malva sylvestris__ L. accumulates O~2~^–•^ at those sites that later exhibit plant cell death. Blocking of ROS accumulation markedly reduced ozone‐induced cell death in tomato, __Arabidopsis__ and __M. sylvestris.__ It is concluded that ozone triggers an __in planta__ generation and accumulation of H~2~O~2~ and/or O~2~^–•^ depending on the species, accession and cultivar, and that both these reactive oxygen species are involved in the induction of cell death in sensitive crop

Who reads Activation of an Oxidative Burst Is a General Feature of Sensitive Plants Exposed to the Air Pollutant Ozone?

Author

H. Wohlgemuth; K. Mittelstrass; S. Kschieschan; J. Bender; H.-J. Weigel; K. Overmyer; J. Kangasjärvi; H. Sandermann; C. Langebartels

Publisher

John Wiley and Sons; Wiley (Blackwell Publishing); Blackwell Publishing Inc.; Wiley (ISSN 0140-7791)

Published

2002

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)