Université de Fribourg

Identification of a species-specific aminotransferase in Pediococcus acidilactici capable of forming α-aminobutyrate

Wenger, Alexander ; Schmidt, Remo S. ; Portmann, Reto ; Roetschi, Alexandra ; Eugster, Elisabeth ; Weisskopf, Laure ; Irmler, Stefan

In: AMB Express, 2020, vol. 10, no. 1, p. 100

During cheese ripening, the bacterial strain Pediococcus acidilactici FAM18098 produces the non-proteinogenic amino acid, α-aminobutyrate (AABA). The metabolic processes that lead to the biosynthesis of this compound are unknown. In this study, 10 P. acidilactici, including FAM18098 and nine Pediococcus pentosaceus strains, were screened for their ability to produce AABA. All P. acidilactici...

Université de Neuchâtel

Characterization of an Arabidopsis–Phytophthora Pathosystem: resistance requires a functional PAD2 gene and is independent of salicylic acid, ethylene and jasmonic acid signalling

Roetschi, Alexandra ; Si-Ammour, Azeddine ; Belbahri, Lassaâd ; Mauch, Felix ; Mauch-Mani, Brigitte

In: The Plant Journal, 2001, vol. 28, no. 2, p. 293-305

Arabidopsis accessions were screened with isolates of Phytophthora porri originally isolated from other crucifer species. The described Arabidopsis–Phytophthora pathosystem shows the characteristics of a facultative biotrophic interaction similar to that seen in agronomically important diseases caused by Phytophthora species. In susceptible accessions, extensive...

Université de Fribourg

Arabidopsis-Phytophthora, un pathosystème modèle pour la caractérisation d'une interaction entre une plante et un pathogène oomycète

Roetschi, Alexandra ; Mauch, Felix (Dir.) ; Gisi, Ulrich (Codir.) ; Métraux, Jean-Pierre (Codir.)

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...