Horseradish Production in Illinois

An Investigation on Plant-Parasitic Nematodes in Horseradish Fields in Illinois

Scavenging of H2O2 and production of oxygen by horseradish peroxidase.

Peroxidases catalyze many reactions, the most common being the utilization of H2O2 to oxidize numerous substrates (peroxidative mode). Peroxidases have also been proposed to produce H2O2 via utilization of NAD(P)H, thus providing oxidant either for the first step of lignification or for the "oxidative burst" associated with plant-pathogen interactions. The current study with horseradish peroxid...

Production of the superoxide radical by horseradish peroxidase.

The reaction mixture contained, in a total volume of 1.00m1, enzyme, p-coumaric acid (2.5pmol), dihydroxyfumaric acid (30pmol), KH2P04 (8.3pmol) and sufficient KOH to adjust the pH to 6. Incubations were carried out for 0.5h at 25°C and caffeic acid production was assayed as described by Halliwell(l975). 100% corresponded to a rate of 60nmol of caffeic acid formed in 0.5h. Oxidation of dihydrox...

OF ILLINOIS AT URBANA - CHAMPAIGN PRODUCTION NOTE University of Illinois at Urbana - Champaign Library Large - scale Digitization

The present study investigated children's comprehension of reading material which was of either highor low-interest. Previous research indicates that children comprehend more of highthan low-interest material when each child is given a mixture of both types of material. This effect could be due to a contrast effect whereby children selectively respond to the more appealing passages in their set...

PAH cleanup in Illinois.

Value of Monitoring Serum Immunoglobulins Questioned Our journal club's review of the recent article by Szczeklik al. (EHP 102:302304) found fault on many levels, especially with the concluding recommendation. It would be neither practical nor useful for workers exposed chronically to PAHs to have serum immunoglobulin levels monitored regularly. The use of cross-sectional data regarding serum i...