Plastoquinone: possible involvement in plant disease resistance.

نویسندگان

  • Urszula Maciejewska
  • Lidia Polkowska-Kowalczyk
  • Ewa Swiezewska
  • Anna Szkopinska
چکیده

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.

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عنوان ژورنال:
  • Acta biochimica Polonica

دوره 49 3  شماره 

صفحات  -

تاریخ انتشار 2002