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Type III effector proteins from bacterial pathogens manipulate components of host immunity to suppress defence responses and promote pathogen development. In plants, host proteins targeted by some effectors called avirulence proteins are surveyed by plant disease resistance proteins referred to as "guards". The Ralstonia solanacearum effector protein PopP2(More)
Bacterial wilt, a disease impacting cultivated crops worldwide, is caused by the pathogenic bacterium Ralstonia solanacearum. PopP2 (for Pseudomonas outer protein P2) is an R. solanacearum type III effector that belongs to the YopJ/AvrRxv protein family and interacts with the Arabidopsis thaliana RESISTANT TO RALSTONIA SOLANACEARUM 1-R (RRS1-R) resistance(More)
EgMYB1, a transcription factor of the large plant R2R3 MYB family was cloned from a Eucalyptus xylem cDNA library. EgMYB1 is preferentially expressed in the secondary xylem of stems and roots of Eucalyptus trees, and the corresponding protein is localized in the nucleus. EgMYB1 binds specifically the MBSIIG sites located in the promoters of lignin(More)
The "GENARA A" experiment was designed to monitor global changes in the proteome of membranes of Arabidopsis thaliana seedlings subjected to microgravity on board the International Space Station (ISS). For this purpose, 12-day-old seedlings were grown either in space, in the European Modular Cultivation System (EMCS) under microgravity or on a 1 g(More)
Growing plants in space for using them in bioregenerative life support systems during long-term human spaceflights needs improvement of our knowledge in how plants can adapt to space growth conditions. In a previous study performed on board the International Space Station (GENARA A experiment STS-132) we evaluate the global changes that microgravity can(More)
Présentation du système immunitaire: mise en place des acteurs de la régulation du calcium (Lucette Pelletier, Toulouse) Mécanismes de défense chez les plantes et rôle du calcium (Alain Pugin, Dijon) Les canaux Ca2+ des cellules (Philippe Lory, Montpellier) Ca 2+ à la synapse immunologique (Nicolas Espagnolle, Toulouse) Signalisation calcique et lymphocytes(More)
In Bryales protonema , elongation rate plays an essential role in the determination of cell size. It regulates the intermitotic increase of apical cells and could act on nucleus movements. In constant growth conditions, the duration of the mitotic cycle of the apical cell is strongly correlated to the growth rate. However, the relationship between(More)
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