[Seminars] PSB event reminder

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Calendar Name: seminars
Scheduled for: Monday, October 8 2012, 11:00 - 12:30
Event text:    Prof Jaakko Kangasjärvi
	       
	       Division of Plant Biology
	       Department of Biosciences
	       University of Helsinki 
	       
	       Helsinki
	       FINLAND
Details:       “Apoplastic ROS and cellular signaling – processes and
	       components involved ”
	       
	       ABSTRACT
	       Effective responses to external and internal stimuli
	       will ensure optimal growth and survival in an
	       environment where productivity and product quality are
	       adversely affected by stresses. Plants must have
	       effective means of adapting to changes in their
	       environment. The main features of such defense
	       strategies involve early recognition and perception of
	       the developing stress, and subsequent activation of
	       induced adaptive and defensive responses. Strong
	       evidence has accumulated that ROS play an important role
	       in the signaling under both abiotic and biotic stresses.
	       The air pollutant ozone generates reactive oxygen
	       species (ROS) in the apoplast. Consequently, ozone has
	       been used as a tool to unravel in planta ROS-induced
	       processes and apoplastic ROS sensing. Examples of
	       identification of the molecular identity of some
	       components, and interaction between multiple regulatory
	       cascades involving apoplastic ROS, discovered with this
	       approach are presented.

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