Thèse de doctorat : Université de Fribourg, 2000 ; no 1324.
Plants have developed numerous, complex defense mechanisms to escape infection by pathogens. In many cases, resistance is expressed locally and systemically in response to either necrotizing pathogens or root-colonizing soil bacteria. Systemic acquired resistance (SAR) is characterized by a systemic accumulation of salicylic acid (SA) and the concomitant activation of pathogenesis-related (PR)...
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Thèse de doctorat : Université de Fribourg, 2001 ; no 1345.
Oomycetes are pathogens responsible for many plant diseases over the world and the economical impact of their damage is quite important. Although these organisms show a mycelar growth, their biology is quite different from that of fungi. This makes them not easy to fight against and up to now no fungicide is able to stop an epidemy due to Oomycetes in a durable way. The particular biology of...
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Thèse de doctorat : Université de Fribourg, 2002 ; No 1370.
In order to better understand the Phytophthora-plant interaction, we have developed a new pathosystem: Arabidopsis thaliana-Phytophthora porri. At present, the best studied Phytophthora species is P. infestans which caused the dramatic Irish late blight epidemics 150 years ago. Studying the pathosystem Phytophthora infestans-Solanum tuberosum has certain advantages mainly because potato is an...
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