Plastoquinone: possible involvement in plant disease resistance.

• Authors: Urszula Maciejewska , Lidia Polkowska-Kowalczyk , Ewa Swiezewska , Anna Szkopinska
• Languages of publication: EN

Abstracts

EN

The plant Solanum nigrum treated with the pathogen Phytophthora infestans-derived elicitor responded by elevated reactive oxygen species (ROS) production, lipid peroxidation and lipoxygenase (EC 1.13.11.12) activity in comparison with control plants indicating that oxidative stress took place. We demonstrate that these events are accompanied by a significant increase in plastoquinone (PQ) level. It is postulated that PQ may be associated with mechanisms maintaining a tightly controlled balance between the accumulation of ROS and antioxidant activity that determines the full expression of effective defence.

Keywords

EN

plastoquinone; pathogen resistance; plants

• Publisher: Polish Biochemical Society
• Journal: Acta Biochimica Polonica
• Year: 2002
• Volume: 49
• Issue: 3
• Pages: 775-780

Dates

published

2002

received

2002-04-30

revised

2002-07-05

accepted

2002-08-20

Contributors

author

Urszula Maciejewska

• Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warszawa, Poland

author

Lidia Polkowska-Kowalczyk

• Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warszawa, Poland

author

Ewa Swiezewska

• Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warszawa, Poland

author

Anna Szkopinska

• Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warszawa, Poland

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