Abstract: The present invention is in the field of bioluminescence in biology and/or medicine. In particular, the invention provides imidazopyrazine derivatives, processes for preparation thereof, and their uses as luciferins.

Abstract: The invention concerns a method for prophylaxis of infections by fungi, particularly by oomycetes, and of bacterial infections in crop and ornamental plants. Areas of application are vine, fruit, vegetable and ornamental plant growing. The method of the invention is characterized in that an aqueous solution of a protease, alone or in combination with ß-glucanases and/or chitinases, is prepared, stabilizers, stickers and wetters are added, and the additized solution is applied by conventional techniques to the plants a number of times within the vegetation period, preferably ahead of weather-related phases of high infection threat.

Abstract: The invention concerns a method for prophylaxis of infections by fungi, particularly by oomycetes, and of bacterial infections in crop and ornamental plants. Areas of application are vine, fruit, vegetable and ornamental plant growing. The method of the invention is characterized in that an aqueous solution of a protease, alone or in combination with ß-glucanases and/or chitinases, is prepared, stabilizers, stickers and wetters are added, and the additized solution is applied by conventional techniques to the plants a number of times within the vegetation period, preferably ahead of weather-related phases of high infection threat.

Abstract: The invention concerns a method for prophylaxis of infections by fungi, particularly by oomycetes, and of bacterial infections in crop and ornamental plants. Areas of application are vine, fruit, vegetable and ornamental plant growing. The problem underlying the invention is that of developing a method for prophylaxis of infections by fungi, particularly by oomycetes, and of bacterial infections, particularly by downy mildew (Peronosporales) and Pseudomonas syringae, in vine and vegetable cultivation. Surprisingly it has been found that selected proteases, alone and in combination with complementary enzymes, effectively prevent the infection of plants by certain phytopathogenic organisms. The protected plant is not infected. Hence propagation of the pathogen within the plant stock is prevented.

Abstract: The invention relates to a calibration device on a silicon substrate SU formed in addition to a reference level Nc by at least two distinct levels Ng, ND. These levels present distinct doping concentrations. The invention also provides a method of making the calibration device, the method including a definition step for defining at least two sections Sg, Sd distinct from a reference section Sc on a silicon substrate SU. This definition step consists in doping the sections different from the reference section at different concentrations.