A vena sativa , Chloroplasts, Protoplasts, Sulfite Efflux, Sulfite Uptake Processes of J5S-labelled sulfite uptake and efflux by oat protoplasts and their chloroplasts are very rapid: during the first minutes (or perhaps even seconds) after sulfite supply a state of equilibrium is established between the protoplasts and their chloroplasts and the incubation medium. Bicarbonate concentrations ra...

Studies made in the field of microbiological degradation of lignin have included investigations with sodium and calcium lignosulfonates. Kazanskii and Mikhailova (1936) were unable to grow several wood-rotting fungi on neutralized waste sulfite liquor, but found that infusorial earth mixed cultures could grow albeit slowly (in 50-60 days) if several alterations were made in the composition of t...

Studies made in the field of microbiological degradation of lignin have included investigations with sodium and calcium lignosulfonates. Kazanskii and Mikhailova (1936) were unable to grow several wood-rotting fungi on neutralized waste sulfite liquor, but found that infusorial earth mixed cultures could grow albeit slowly (in 50-60 days) if several alterations were made in the composition of t...

Candida albicans is an opportunistic fungal pathogen that is highly resistant to different oxidative stresses. How reactive sulfur species (RSS) such as sulfite regulate gene expression and the role of the transcription factor Zcf2 and the sulfite exporter Ssu1 in such responses are not known. Here, we show that C. albicans specifically adapts to sulfite stress and that Zcf2 is required for tha...

Defined complex media used for cultivation of Neisseria gonorrhoeae were tested for the presence of H2O2 by both a spectrophotometric and a polarographic assay. H2O2 (35 to 165 microM) was present in all media tested. In the defined media, H2O2 was generated by the interaction of cysteine with other amino acids. The addition of the chelator 8-hydroxyquinoline prevented formation of detectable H...

There is some concern that incidental consumption of eggs cured with commercially available cures for the purpose of sport fishing causes mortality in juvenile salmon. We evaluated this by feeding juvenile spring Chinook (Oncorhynchus tshawytscha) and steelhead (O. mykiss) with eggs cured with one of five commercially available cures. We observed significant levels of mortality in both pre-smol...

The applicability of heavy atom-induced room-temperature phosphorescence to pharmaceutical samples is demonstrated in this work. Thus a new, simple, rapid, and selective phosphorimetric method for dipyridamole determination is proposed. The phosphorescence signals are a consequence of intermolecular protection when analytes are exclusively in the presence of heavy atom salts and sodium sulfite ...

Two years ago, a modification (1) of the Bell-Doisy phosphate method was published and at that time technique ‘was given for its application to inorganic phosphorus in blood and urine. Since then its use has been extended to a variety of analytical procedures, some of which are given below. In principle the method consists of the formation of phosphomolybdic acid and its subsequent reduction by...