2-Quinoxalinamine,6-nitro-

Detection of Low Levels of Nitric Oxide Using an Electrochemical Sensor

suppression of nitric oxide synthase 3 leading to a significant decline of basal nitric oxide production in human umbilical vein endothelial cells. Basal nitric oxide production from HUVECs is also shown to be inhibited by N G -nitro-l -arginine methyl ester

Isolation of Mutants and Construction of Intersexual Heterokaryons of Blakeslea trispora

of heterokaryons. Because all life stages are multinucleated, recessive mutants are isolated after exposure to N -methyl-N ′-nitro-N -nitrosoguanidine, a strong mutagen and inactivator of nuclei. Intersexual heterokaryons are obtained easily

Hybridization of Digoxigenin-Labeled Probes to Southern Blots and Detection by Chemiluminescence

, such as Nitro Blue Tetrazolium (NBT), that was converted to an insoluble, colored compound at the site of hybridization, thus facilitating visualization of the hybridized probe.