In: Plant Physiology, 2008, vol. 147, p. pp.107.110247
The analysis of gene expression in Arabidopsis thaliana using cDNA-microarrays and RT-PCR showed that AtOSA1 (Arabidopsis thaliana Oxidative Stress related Abc1 like protein) transcript levels are influenced by Cd²⁺ treatment. The comparison of protein sequences revealed that AtOSA1 belongs to the family of Abc1 proteins. Up to now, Abc1-like proteins have been identified in...
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In: Gene, 2008, vol. 408, no. 1-2, p. 1-8
Lateral gene transfer (LGT) can facilitate the acquisition of new functions in recipient lineages, which may enable them to colonize new environments. Several recent publications have shown that gene transfer between prokaryotes and eukaryotes occurs with appreciable frequency. Here we present a study of interdomain gene transfer of cutinases – well documented virulence factors in fungi –...
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Thèse de doctorat : Université de Fribourg, 2004 ; no 1442.
The reduction of S02 atmospheric pollution in the early nineties caused sulfur-deficiency problems in the agriculture of northern Europe. Sulfur is essential for plant development and sulfur containing compounds such as sulfur rich antifungal proteins, phytoalexins and glucosinolates play an important role in plant defense against pathogens. Sulfur starved Brassica napus with no visible symptoms...
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In: The Plant Journal, 2007, vol. 49, no. 6, p. 972-980
In addition to its role as a barrier, the cuticle is also a source of signals perceived by invading fungi. Cuticular breakdown products have been shown previously to be potent inducers of cutinase or developmental processes in fungal pathogens. Here the question was addressed as to whether plants themselves can perceive modifications of the cuticle. This was studied using Arabidopsis...
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In: The Plant Journal, 2007, vol. 49, no. 1, p. 159-172
The Arabidopsis pad2-1 mutant belongs to a series of non-allelic camalexin-deficient mutants. It was originally described as showing enhanced susceptibility to virulent strains of Pseudomonas syringae and was later shown to be hyper-susceptible to the oomycete pathogen Phytophthora brassicae (formerly P. porri). Surprisingly, in both pathosystems, the disease...
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In: Molecular Plant-Microbe Interactions, 2005, vol. 18(3), p. 229
To overview the gene content of the important pathogen Phytophthora infestans, large-scale cDNA and genomic sequencing was performed. A set of 75,757 high-quality expressed sequence tags (ESTs) from P. infestans was obtained from 20 cDNA libraries representing a broad range of growth conditions, stress responses, and developmental stages. These included libraries from P....
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In: Molecular Plant Pathology, 2003, vol. 4(4), p. 237
Induced resistance was studied in the model pathosystem Arabidopsis-Phytophthora brassicae (formerly P. porri) in comparison with the agronomically important late blight disease of potato caused by Phytophthora infestans. For the quantification of disease progress, both Phytophthora species were transformed with the vector p34GFN carrying the selectable marker...
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Thèse de doctorat : Université de Fribourg, 2001 ; no 1345.
Les Oomycètes sont de redoutables pathogènes pour les végétaux, particulièrement pour les plantes de culture et les pertes annuelles occasionnées par ces organismes sont considérables. Leur biologie est très différente de celle des champignons, même s’ils partagent avec ces derniers un mode de croissance mycélaire. Ainsi, il n’est pas aisé de les combattre et il n’existe que peu...
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