Interpretation of effects connected with the presence of zinc in the soil was supported by the following data analyses: percentage of factors of the observed variations r|2, Pearson correlation coefficients (p = 0.01) between the zinc dose and the investigated parameters, cluster analysis (CA) by Ward's method with Euclidean distance in studies of the microorganism populations and principal component analysis (PCA) illustrating the activity of oxidoreductases
and community of microorganisms.
Like iron, copper, zinc, manganese, and cobalt, molybdenum (Mo) can be utilized as a stably bound, variably coordinated cofactor in proteins, in mammals, Mo is found in three different enzymes: aldehyde oxidoreductase
(AOR), sulfite oxidase (SOX), and xanthine oxidoreductase
Glucose is metabolized via a modified Emden-Meyerhof pathway that involves ADP- rather than ATP-dependent hexo- and phosphofructokinases  and a ferredoxin-linked glyceraldehyde-3-phosphate (GAP) oxidoreductase
(GAPOR) rather than an NAD-linked GAP dehydrogenase [5, 6].
Effect on the Activity of Some Enzymes from the Class of Oxidoreductases
. Inhibition of lipoxygenase (LOXI) activity was determined spectrophotometrically at a temperature of 25[degrees]C by measuring the increase of absorbance at 234 nm over a 2 min period .
InterProScan identified a FAD/NAD(P)-binding domain in the protein and suggested that it belonged to pyridine nucleotide-disulfide oxidoreductase
family of proteins.
We first tested the involvement of [H.sub.2][O.sub.2] generation at the cell membrane by pretreating the cells with the specific NADPH oxidoreductase
inhibitor DPI 30 mm prior to the addition of 10-150 [micro]M l,2-NQ.
Laccase is one of the few oxidoreductases
commercialized as industrial catalysts.
A part of these investigations dealing with the malfunctioning of infected placenta at histological, scanning electron microscope, biochemical and histochemical localisation of hydrolases has already been published (15-18) and the present communication deals with the histochemical investigations on some metabolic marker oxidoreductases
, the steroidogenic enzymes of malaria infected early gestational (2-2 1/2 months) monkey placenta.
Among these reactions and classes are isomerization, addition and elimination, nitrogen and sulfur tranferases, oxidoreductases
, and complex enzymes.
Enzymes: Strategies for enzyme activity measurements; Proteolytic enzymes; Lipolytic enzymes; Oxidoreductases
. Lipids: Lipid composition; Lipid oxidation/stability; Physical properties of lipids.
Gonzalez RR, Quinones RA (2000) Pyruvate oxidoreductases
involved in glyeolytic anaerobic membolism of polychaetes from the continental shelf off central-south Chile.