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Consortium of Swiss Academic Libraries

(NH4)2SO4 recovery from liquid side streams

Boehler, Marc ; Heisele, Alexander ; Seyfried, Alexander ; Grömping, Markus ; Siegrist, Hansruedi

In: Environmental Science and Pollution Research, 2015, vol. 22, no. 10, p. 7295-7305

Université de Fribourg

Rapid detection of carbapenemase-producing Pseudomonas spp. using the NitroSpeed-Carba NP test

Sadek, Mustafa ; Poirel, Laurent ; Nordmann, Patrice

In: Diagnostic Microbiology and Infectious Disease, 2021, vol. 99, no. 3, p. 115280

The NitroSpeed-Carba NP test was used to rapidly detect and discriminate between the different types of carbapenemases (classes A, B, and D) within 30 minutes among a collection of 202 Pseudomonas sp. strains (mostly Pseudomonas aeruginosa). A total of 99 carbapenemase–(including enzymes exhibiting weak carbapenemase activity such as several Guyana Extended-Spectrum (GES)-ß-lactamases) and...

Université de Fribourg

A selective culture medium for screening ceftazidime-avibactam resistance in Enterobacterales and Pseudomonas aeruginosa

Sadek, Mustafa ; Poirel, Laurent ; Tinguely, Camille ; Nordmann, Patrice

In: Journal of Clinical Microbiology, 2020, vol. 58, no. 9, p. -

The SuperCAZ/AVI medium was developed for screening ceftazidime-avibactam (CZA) resistance among Gram-negative bacteria (Enterobacterales and Pseudomonas aeruginosa). It was evaluated using 50 CZA-susceptible and 42 CZA- resistant Gram-negative isolates. Its sensitivity and specificity of detection were 100%. Excellent performance of the medium was also observed by testing spiked stools, with ...

Université de Fribourg

An analog to digital converter controls bistable transfer competence development of a widespread bacterial integrative and conjugative element

Carraro, Nicolas ; Richard, Xavier ; Sulser, Sandra ; Delavat, Franc¸ois ; Mazza, Christian ; van der Meer, Jan Roelof

In: eLife, 2020, vol. 9, p. e57915

Conjugative transfer of the integrative and conjugative element ICEclc in Pseudomonas requires development of a transfer competence state in stationary phase, which arises only in 3–5% of individual cells. The mechanisms controlling this bistable switch between non-active and transfer competent cells have long remained enigmatic. Using a variety of genetic tools and epistasis experiments in...

Université de Fribourg

Contribution of hydrogen cyanide to the antagonistic activity of Pseudomonas strains against Phytophthora infestans

Anand, Abhishek ; Chinchilla, Delphine ; Tan, Christopher ; Mène-Saffrané, Laurent ; L’Haridon, Floriane ; Weisskopf, Laure

In: Microorganisms, 2020, vol. 8, no. 8, p. 1144

Plants face many biotic and abiotic challenges in nature; one of them is attack by disease-causing microbes. Phytophthora infestans, the causal agent of late blight is one of the most prominent pathogens of the potato responsible for multi-billion-dollar losses every year. We have previously reported that potato-associated Pseudomonas strains inhibited P. infestans at various developmental...