[Seminars] PSB event reminder

[contact at psb.vib-ugent.be]

Calendar Name: seminars
Scheduled for: Monday, January 18 2010, 11:00 - 12:30
Event text:    Prof Filip Rolland
	       
	       Laboratory of Functional Biology
	       Plant Metabolic Signaling group
	       Institute of  Botany and  Microbiology, K.U.Leuven
	       BELGIUM
Details:       "Sensing and signaling plant carbon and energy status"
	       
	       ABSTRACT
	       Plants are constantly challenged by changes in their
	       environment that affect photosynthesis, respiration and
	       carbon allocation and by a changing tissue- and
	       developmental stage-dependent physiology during
	       development. Therefore, they have evolved mechanisms to
	       constantly monitor their metabolic status and adjust
	       their growth accordingly. The KIN10/11 SnRK1 protein
	       kinases, for example, function as conserved ‘fuel
	       gauges’ that trigger extensive metabolic reprogramming
	       upon carbon and energy depletion, in part through a
	       network of bZIP transcription factors. SnRK1 activity is
	       controlled by the micromolar levels of trehalose-6-P
	       (T6P), the metabolic intermediate of trehalose
	       metabolism. While Arabidopsis does not accumulate this
	       disaccharide, its genome encodes a large family of T6P
	       synthase (TPS)-like and T6P phosphatase (TPP) proteins.
	       Yeast functional complementation studies, however,
	       suggest that most of the TPS-like proteins are
	       catalytically inactive and expression studies reveal
	       extensive regulation at the transcriptional level.
	       Therefore, they might function as metabolic sensors of
	       plant carbon status.

-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://maillist.psb.ugent.be/mailman/private/seminars/attachments/20100118/e28421fb/attachment.html