10th INTERNATIONAL VERTICILLIUM SYMPOSIUM 16-20 ...

ANALYSIS OF VERTICILLIUM LONGISPORUM-INDUCEDGENE EXPRESSION IN ARABIDOPSIS THALIANACHRİSTİANE GATZ, ELKE GERHARD BRAUS, ELKE DİEDERİCHSEN,WOLFGANG DRÖGE-LASER, VOLKER LİPKA, IVO FEUßNER, PETRKARLOVSKY, ANDREA POLLE, THOMAS TEİCHMANN AND ANDREASVON TİEDEMANNGeorg-August-University Goettingen, GermanyThe Verticillium research unit, which consists of eight partners of the GeorgAugust University Göttingen and one partner of the Free University Berlin, haschosen to elucidate the interaction between V. longisporum and Arabidopsis thalianaand Brassica napus as a common experimental system to address the question howplants can sense and react to foreign organisms in the xylem. One fruitful aspect ofthis research group is the strong focus on one experimental system that is investigatedusing the different expertises of laboratories working in the fields of biochemistry,cell biology, molecular and applied genetics, plant physiology, plant pathology, andmicrobiology, and entomology. The project profits from the modern infrastructure(proteomics, transcriptomics, metabolomics, microscopy) available on campus. Indetail, we address the question concerning the identity of the fungal PAMPs orelicitors that evoke plant responses to Verticillium longisporum in roots and in thexylem. Second, we analyze, which responses of the plant serve to accommodate thefungus and which responses serve defense mechanisms (see Abstracts byDiederichsen et al., Häffner et al., Reusche et al.). Third, we aim to elucidate theplant signal transduction chains that elicit the responses (see Abstracts by Ralhan etal., Teichmann et al., Weiberg et al.). Finally, the adaptation of the fungus to living inthe xylem is explored (see Abstracts by Braus-Stromeier et al. and van Tran et al.).The talk will give a brief overview of the research approaches of the different groups.Finally, I will present data from our group that focus on the use of Verticilliumlongisporum-induced marker genes to elucidate the contribution of known andunknown singaling pathways to the gene expression pattern elicited by the plant(See also Abstract by Ralhan et al.).33